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Cellulose was isolated from recycled pulp and paper sludge and used to synthesize cellulose nanocrystals. Response surface methodology and Box-Behnken design model were used to predict, improve, and optimize the cellulose isolation process. The optimal conditions were a reaction temperature of 87.5 °C, 180 min with 4% sodium hydroxide. SEM and TEM results revealed that the isolated cellulose had long rod-like structures of different dimensions than CNCs with short rod-like structures. The crystallinity index from XRD significantly increased from 41.33%, 63.7%, and 75.6% for Kimberly mill pulp sludge (KMRPPS), chemically purified cellulose and cellulose nanocrystals, respectively. The TGA/DTG analysis showed that the isolated cellulosic materials possessed higher thermal stability. FTIR analysis suggested that the chemical structures of cellulose and CNCs were modified by chemical treatment. The cellulose surface was highly hydrophilic compared to the CNCs based on the high water holding capacity of 65.31 ± 0.98% and 83.14 ± 1.22%, respectively. The synthesized cellulosic materials portrayed excellent properties for high-end industrial applications like biomedical engineering, advanced materials, nanotechnology, sustainable packaging, personal care products, environmental remediation, additive manufacturing, etc. [ABSTRACT FROM AUTHOR]

Paper mill sludge (PMS) is featured with a high content of cellulose and hemicellulose, and using its characteristics to make paperboard can achieve a high-value utilization of PMS, which has attracted growing interest. In this study, currently prevalent landfill, incineration technologies (generating heat and electricity by incineration), and three paperboard technologies (medium density fiberboard, pulp board, and corrugated paper) were evaluated and compared via life cycle assessment (LCA) and life cycle costing (LCC) methods. LCA results show that the PMS-to-pulp board outperforms others with an energy conservation and emission reduction (ECER) value of − 2.86 × 10−8, while the landfill exhibits the highest overall environmental impact with an ECER value of 4.80 × 10−9. LCC results reveal that the PMS-to-pulp board delivers the highest economic profit with $257.357, while the landfill is the lowest with $ − 35.63. The PMS paperboard technologies are more economically friendly than the incineration technologies due to additional electricity/steam consumption during the PMS pre-drying process in incineration. In addition, different scenarios were set up to explore national GHG emission reduction potential by increasing paperboard technologies application rate and reducing the proportion of landfill and incineration. The scenario analysis suggests that replacing 90% of landfill and incineration ratio with PMS paperboard technologies could tremendously improve the overall emission reduction performance with − 9.08 × 1010 kg CO2 eq. This result indicates that the PMS treatment technology transformation has a significant favorable impact on the achievement of the "carbon neutrality" target. [ABSTRACT FROM AUTHOR]

Pulp and paper are gradually transforming from a traditional industry into a new green strategic industry. In parallel, cellulose-derived transparent paper is gaining ground for the development of advanced functional materials for light management with eco-friendly, high performance, and multifunctionality. This review focuses on methods and processes for the preparation of cellulose-derived transparent papers, highlighting the characterization of raw materials linked to responses to different properties, such as optical and mechanical properties. The applications in electronic devices, energy conversion and storage, and eco-friendly packaging are also highlighted with the objective to showcase the untapped potential of cellulose-derived transparent paper, challenging the prevailing notion that paper is merely a daily life product. Finally, the challenges and propose future directions for the development of cellulose-derived transparent paper are identified. [Display omitted] [ABSTRACT FROM AUTHOR]

Purpose: The surface energy of the printing material can be increased to desired levels with different chemicals or methods. However, the important thing is that the surface properties of printing material are not affected negatively. In this way the aim of this paper provide that the surface properties of matte and glossy coated paper is improved by the argon containing atmospheric pressure plasma device because the plasma treatment method does not occur surface damaging on the papers. Design/methodology/approach: In experimental studies, test samples cut from 160 mm × 30 mm in size from 115 g/m2 gloss- and matt-coated papers were used. The plasma treatments of paper samples were carried out with an argon containing atmospheric pressure plasma device of laboratory scale that produces plasma of the corona discharge type at radio frequency. The optimized plasma parameters were at a frequency of 20 kHz and plasma power 200 W. A copper electrode of length 12 cm and diameter 2.5 mm was placed in the centre of the nozzle. Findings: Research findings showed that the surface energies of the papers increased with the increase in plasma application time. While the contact angle of the untreated glossy paper is 82.2, 8 second plasma applied G3 sample showed 54 contact angle value. Similarly, the contact angle of the base paper of matt coated is 91.1, while M3 is reduced to 60.4 contact angles by the increasing plasma time. Originality/value: Plasma treatment has shown that no chemical coating is needed to increase the wettability of the paper surface by reducing the contact angle between the paper and the water droplet. In addition, the surface energies of all papers treated by argon gas containing atmospheric pressure plasma, increased. Plasma treatment provides to improve both the wettability of the paper and the adhesion property required for the ink, with an environmentally friendly approach. [ABSTRACT FROM AUTHOR]

A systematic-study is conducted using an innovative technology for paper drying by applying ultrasound mechanism. The advantages include greater energy efficiency, lower drying time and temperature, improvement of the product quality, and it is considered a green technology. The effects of initial moisture content, thickness, and refining condition are studied for different types of pulps (hardwood and softwood) using 23 factorial design of experiments. Analysis of Variance show that in the range of the studied parameters, thickness has the maximum effect on ultrasonic drying time followed by the initial moisture content. In addition, using a linear regression model, a relationships for the total time of drying is provided. The results confirmed that ultrasonic drying is more efficient at higher moisture content and higher thickness of the sample. These results are related to the structural characteristic of the samples such as porosity, pore distribution, and surface roughness. [ABSTRACT FROM AUTHOR]

As an important high-voltage electrical equipment in the substation, the performance stability of high-voltage current transformers is directly related to the safe operation of the power grid. The insulating medium of the traditional oil-immersed current transformer is an oil-immersed paper structure. When the oil-immersed current transformer malfunctions, it is easy to cause fire and explosion, resulting in very serious consequences. If the transformer with the epoxy resin impregnated paper insulation medium is used, there is no oil and gas inside; thus, it has high reliability, which greatly reduces the risk of fire and explosion. Based on this, considering the application research on the high-voltage current transformers epoxy resin impregnated paper technology, this paper mainly analyzes some precautions for the application of epoxy resin impregnated paper technology to the high-voltage current transformers from three aspects: the research on the insulation performance of the epoxy resin impregnated paper transformers, the research on the mechanical properties, and the research on the relevant experimental methods of the epoxy resin impregnated paper technology application to the high-voltage current transformers. [ABSTRACT FROM AUTHOR]

Laccase has the enormous potential to be implemented as the multitasking biocatalyst in whole process of paper making. The enzyme can utilize effectively for pulping, delignification of pulps as alone or in the combination with other bleaching enzymes. Laccase has been evaluated for the biografting of pulp fibers, decolorize and stabilize the effluent of the paper mills, biotransformation of high molecular weight (HMW) lignins to lower molecular weight (LMW) aromatic compounds. Further this enzyme has the huge possibilities to apply for deinking of old newsprint (ONP) and pitch removal from varieties of the different pulps. There is no doubt on versatility mode of action of laccases in paper industry, but still there is limited commercialization of this enzyme has been possible, because of laccases has the less redox potential (E0) and needs mediators for the oxidation of non phenolic substrates, production of enzyme is cost intensive at large scale. This review is providing the proper updated information on the state of the art of different applications of laccase in paper industry. It also confer the interpretation to the readers about the areas of extensively studied and the field where there is still much left to be done. [ABSTRACT FROM AUTHOR]

This article reports on a study where we used a novel method to work with university students at a media technology and design programme to innovate on questions related to futuring in an educational context. Participating students used creative methods, paper crafting and design methods to "hack" the university campus in a post-COVID-19 scenario. This study situates hackathon as a design method that can be used to foster problem-solving and critical thinking skills in the context of current challenges. The students were asked to identify possible challenges in a post-COVID-19 return on campus and consider solutions to these challenges. They were tasked to shape their solutions in the form of a "sustainable artefact" meant to facilitate a smoother, safer, and welcoming return to campus life. In this study we reflect on how they engaged critically with the campus green and built infrastructure and how have they considered changes that would make their return to campus life a positive experience. Through the analysis of students' assignments, we demonstrate how this method allowed for space in finding one's own voice, how the design material supported students' work on future design, and how aspects of future design are helping students finding a way of acting upon current calls to re-work our cities. [ABSTRACT FROM AUTHOR]

Paper has been extensively accepted as an ideal platform for fabricating low‐cost, flexible, and environmentally friendly electronics. However, current paper‐based pressure sensors have not fully demonstrated the unique merits of paper, such as cost efficiency, disposability, cuttability, and foldability, mainly because of the limitation of the applied metal electrodes and device configuration. Here, an all‐organic, all‐paper, cuttable, and foldable pressure sensor is demonstrated for the first time, with the high‐conductivity polypyrrole (PPy) printing paper as electrode and the low‐conductivity PPy tissue paper as active layer. Hollow and 3D all‐paper sensors are realized through fabricating the kirigami or origami structure since the device can be freely cut and folded, presenting a universal strategy promising for flexible device design. The cuttability and foldability of device create a unique 3D perception capability. The devices show high sensitivity (4.8 kPa−1 at < 5.5 kPa, 1.7 kPa−1 at 5.5–40 kPa) and wide detection range (up to 40 kPa), providing a capability for full‐range detection of human physiological and motion signals. These results open a feasible route to realize hollow and 3D sensors and fully demonstrate the potential of paper sensors for diverse applications to new‐generation green electronics and portable electronics. [ABSTRACT FROM AUTHOR]

Recycling is an example of a sustainable process within the proclaimed circular economy, and paper is the most recycled material in the world. The new conditions imposed by the Covid-19 crisis put the pulp and paper industry to the challenge of coping with emerging difficulties and maintaining its position in individual sub-sectors. The aim of this study is to present the development of recycling of paper and paper products within of the last year, marked by the conditions of the Covid-19 pandemic. In the study have been used the descriptive - analytical approach, the methods of comparison, analysis and synthesis. [ABSTRACT FROM AUTHOR]

[Display omitted] • Multi-layer forming technology can integrate triboelectric material with electrode. • The all CPTENGs can exhibit excellent humidity, acid and alkali resistance. • The CPTENGs can yield a V OC , I SC and power density of 227.1 V, 6.9 μA and 520 mW/m2. • Matching CPTENGs with P-ZISC can obtain a self-charging power system (PSCPS). • The PSCPS can drive some miniaturized electronics for a long time. Triboelectric nanogenerators (TENGs) are regarded as a promising technology to drive the development of flexible/wearable electronics and self-powering sensor. Application of cellulose paper as the triboelectric positive materials makes TENGs more environmentally friendly. However, the limited output performance and stability in harsh environments and oxidation and corrosion of the metal electrodes have limited the practical application of cellulose paper based triboelectric nanogenerators (CPTENGs). Here, we have integrated cellulose paper-based triboelectric material and electrode in one sheet by using multi-layer forming technology in paper industry; the upper triboelectric layer shows excellent triboelectric positive performance, hydrophobicity and acid and alkali resistance, while the bottom electrode exhibits promise conductivity. The all CPTENGs can yield a maximum open-circuit voltage (V OC) of 227.1 V, a short-circuit current (I SC) of 6.9 μA. Furthermore, the V OC values of the all CPTENGs increase from 0.02 V to 225.1 V at the load resistance of 100 Ω∼10 GΩ; and a power density of 520 mW·m−2 is also obtained at a load resistance of 30 MΩ. Moreover, the V OC of CPTENGs not only retains up to 78 % of its initial value at a high relative humidity of 90 %, but also almost maintains unchanged in a wide range of the pH environment (pH = 1∼13). More importantly, the CPTENGs can be readily matched with paper-based zinc supercapacitor (P-ZISC) to act as an all paper based self-charging power system (PSCPS). The PSCPS is capable of driving various miniaturized electronics, such as electronic watch, temperature/humidity indicator, demonstrating its potential application in a sustainable power source for portable and green electronics. [ABSTRACT FROM AUTHOR]

Nowadays, the paper industry supplies its required fibers either from primary fibers, including wood and plants, or waste papers, called secondary fibers. One of the most challenging recycling processes is deinking of papers digitally printed with electrophotographic ink. In order to produce optically high-quality paper from recycled waste papers, deinking step is required at the desired levels. In this work, the environmentally friendly green enzymatic deinking of printed paper was modeled and optimized via an innovative approach called artificial intelligence method. The effect of treatment temperature, treatment time, and enzyme dosage on mechanical properties (tensile and burst strengths) as well as optical properties (whiteness and brightness) of handsheet was investigated. The developed code can appropriately learn the non-linear behavior of deinking process, and make decisions according to the pattern constructed intelligently. Finally, multi-objective optimization at the specified treatment temperature, treatment time, and enzyme dosage was performed to identify the best conditions for enzyme-deinked handsheet (maximized mechanical and optical properties). [ABSTRACT FROM AUTHOR]

Existing literature ignores to consider multiple types of pollutants when analyzing energy efficiency and its convergence. Under this background, using SuperSBM-GML model, the improved entropy method, and convergence model, this paper calculates the green total-factor energy efficiency and its evolution trend of 35 China's industrial sub-sectors considering multiple pollutants, and analyzes its convergence. The results indicate that the average score of industrial green total-factor energy efficiency is low, and there are significant differences among sub-sectors: "Utilization of waste resources" is the highest, while "Manufacture of paper and paper products" is the lowest. The green total-factor energy efficiency shows an overall upward trend from 2006 to 2021, the main driving force comes from technological progress, but numerous sub-sectors have not sufficiently caught up with existing cutting-edge technologies. Specifically, the growth rate of green total-factor energy efficiency in high-energy-consumption sub-sectors is higher than low-to-medium-energy-consumption sub-sectors. There are both σ-convergence and β-convergence in low-to-medium-energy-consumption group, indicating that development of sub-sectors is stable and outstanding. Nevertheless, the high-energy-consumption group only exhibits conditional β-convergence, revealing an imbalance in energy efficiency development. Consequently, formulating the benchmark level of energy efficiency and developing energy efficiency "leader" system are suggested for low-to-medium and high-energy-consumption sub-sectors, respectively. [ABSTRACT FROM AUTHOR]

The evolution of Building Information Modelling (BIM) is transforming practice in the Architecture, Engineering and Construction (AEC) industry. BIM provided revolutionary ways of generating, visualizing, exchanging, predicting and monitoring information. Over the last decade, delivering sustainable projects has become a high priority along with the recognition of the role the BIM plays to improve efficiency. However, BIM-enabled sustainability practices are still relatively immature and inconsistent. Previous research has identified challenges in the delivery of green-rated buildings, that include: dealing with documentation, evidencing requirements, monitoring progress, and decision making. Limited studies focused on linking workflow obstacles of green projects to potential improvements using current BIM capabilities. Through interrogating existing research via a systematic literature review, this paper takes the original approach of constructing an 'analysis map' to 'bridge the gap' and highlight current limitations and successes between BIM and sustainability practices. The findings are formulated through two parallel investigation tracks: the first is design task/BIM capability analysis, and the second is green project delivery problem/BIM enabled sustainability application. This research highlights future potential investigation areas, which are categorized into six clusters: representation; performance simulation; transaction and exchange; documentation; automation and standardization and guidance. [ABSTRACT FROM AUTHOR]

Highlights • Sizing of paper is carried out using liquid CO 2 as an alternative medium. • Sucrose Octaacetate (SOA) is used as a CO 2 -philic and renewable size compound. • The method is inherently dry and industrially viable. • The SOA-coated surface shows reduced optical reflectance. • The sized paper shows enhanced non-wetting nature and improved mechanical properties. Abstract The development of low cost, non-fluorous, CO 2 -philic materials such as sugar acetates have opened up new opportunities for enabling the utilization of liquid and supercritical carbon dioxide (scCO 2) as a green solvent platform for industrial processes by virtue of the high solubility of these materials in CO 2. In the present work, we report the sizing of paper surface with sucrose octaacetate (SOA) using this alternative solvent system. Characterization of the bare and sized paper samples has been carried out using spectroscopic and surface imaging techniques. The studies reveal a smooth and uniform coating of the surface with SOA. Contact angle measurements and sorption studies show that the SOA-coated paper surface is hydrophobic. The mechanical properties of the SOA-coated paper are observed to be superior to that of the uncoated one. Since the solvent and the size can be completely recycled, this can be developed into an industrially viable green technology. [ABSTRACT FROM AUTHOR]

The decline in mechanical properties of secondary fiber upon multiple recycling iterations necessitates the incorporation of cost-effective and environmentally friendly fibers to counterbalance strength loss. In this study, an orthogonal experiment design was employed to optimize the SE process to acquire tabocco stem pulp (TSP). The study systematically investigated the influence of steam pressure, residence time, and alkali dosage employed during impregnation were investigated. Notably, the research identified alkali dosage as the most significant parameter impacting system performance. Under optimized conditions (1.2 MPa, 5 min, and 5 %), the prepared paper using 100 % TSP exhibited the capability to attain Grade C corrugated medium. TSP, subsequently, served as a compensatory material for mitigating the loss of strength observed in low-quality secondary fibers (LSF). Remarkably, the introduction of 20 wt% TSP resulted in the production of grade B products, showcasing exceptional enhancement in ring-crush strength. The breaking length of paper was increased with an additional 0.5 wt% PAE added, resulting in all criteria achieving the highest grade A. In conclusion, the study elucidated the synergistic and complementary effects of TSP and LSF, wherein stiff TSP fiber bundles formed a network that effectively supported LSF filling. This study identified the relationship between SE parameters and fiber properties, conclusively establishing waste tobacco stem as a quality fiber source conducive to producing high-quality paper. [Display omitted] • Steam explosion (SE) didn't change the inherent stiffness of the tobacco stem fiber. • Process parameters of SE influence strongly on fiber properties. • SE pulp compensates for secondary fiber's inadequate mechanical properties. • SE pulp and secondary fiber have synergistic and complementary effects. [ABSTRACT FROM AUTHOR]

The Guidelines on Building a Market-Oriented Green Technology Innovation System, which was released by China in 2019, has become a powerful signal to guide the development of green technology innovation (GTI). In the current digital strategy of China, the public media has become a key factor for promoting the transparency of enterprise environmental information. This paper measures the GTI efficiency of the listed paper enterprises in China as well as incorporating media attention into the research framework to explore the influencing factors of GTI of the listed paper enterprises in China during the digital economy era. The results showed that a positive media report had a positive impact on GTI and has become a new driving factor in promoting sustainable production in the digital era. Government support and openness also have a positive impact on GTI. However, negative media reports, environmental regulations, and technological innovation abilities have an inhibitory effect on the GTI efficiency of paper making enterprises. [ABSTRACT FROM AUTHOR]

As a traditional energy and carbon intensive sector, it becomes imperative for the global paper industry to realize green development. This paper aims to provide guidance for the green transformation of global paper industry by evaluating the global paper industry green development level in a systematic and dynamic way. This paper employs text-mining method to develop paper industry green development evaluation indicator system and adopts market-extended LCA model and entropy-TOPSIS method to calculate the paper industry green development level of 48 countries/regions. The results show that during 2000–2030 the paper industry green development level of developing countries improves faster than developed countries, where those of developing and developed countries increase from 0.3369 to 0.3938 and from 0.5120 to 0.5517 respectively and the gap between them narrows from 0.1751 to 0.1579. The comparative analysis reveals that the paper industries of developed and developing countries are in different green development stages. Developing countries, represented by China, improve greatly in economic and social dimensions, but decline seriously in ecological dimension due to enlarging resource consumption and environmental damages. On the contrary, developed countries tend to saturate in economic and social dimensions and have been improving fast in ecological dimension, gradually realizing the decoupling of industrial economic development and environmental damages. To further promote the global paper industry green development, developing countries should focus on promoting the coordinated development between economic growth and environment protection and developed countries should play a leading role in the global green transformation by promoting optimal allocation of resources and cross-regional communications of green technologies. • A paper industry green development indicator system is developed based on text mining. • A global paper industry green development model is built with market-extended LCA. • Complex interactions among the indicators are internalized in the evaluation. • A spatial-temporal analysis is performed on global paper industry green development level. [ABSTRACT FROM AUTHOR]

This review research paper delves into the pivotal domain of Green Supply Chain Management (GSCM), exploring the strategies employed by businesses to adopt and implement eco-friendly practices. As the global community grapples with the pressing challenges of climate change and environmental degradation, organizations are increasingly recognizing the imperative to integrate sustainability into their supply chain operations. The paper begins by providing a comprehensive overview of the conceptual framework underpinning GSCM, emphasizing its role in fostering environmental stewardship and corporate responsibility. Subsequently, it delves into a meticulous analysis of diverse strategies that enterprises employ to imbue their supply chains with environmentally conscious practices. These strategies encompass procurement of sustainable materials, eco-design, waste reduction, energy efficiency, and the adoption of green technologies. Furthermore, the review elucidates the multifaceted benefits accruing from the adoption of GSCM, ranging from cost savings and enhanced brand reputation to regulatory compliance and risk mitigation. The paper also navigates through the challenges faced by businesses in implementing green strategies, including initial investment costs, stakeholder alignment, and supply chain complexities. The synthesis of findings from various empirical studies and industry reports facilitates the identification of emerging trends and best practices in GSCM. Additionally, the paper offers insights into the role of technology, government policies, and collaboration among supply chain partners in advancing eco-friendly initiatives. This review paper contributes to the burgeoning discourse on sustainable business practices by providing a nuanced understanding of GSCM strategies. It serves as a valuable resource for academics, practitioners, and policymakers seeking to foster eco-friendly supply chain practices in the pursuit of a more sustainable and resilient global economy. [ABSTRACT FROM AUTHOR]

Photonic and electronic devices currently face challenges in terms of improved efficiency of energy harvesting and light emission, renewable energy and materials, and the development of eco‐friendly materials. Owing to the emergence of world‐wide concerns about environmental degradation and the ensuing regulations, demand for environmentally friendly technology has been increasing in recent years. As the current technology of creating electronics and photonics devices based on semiconductors heavily relies on processes that produce a series of hazardous chemicals, development of renewable and eco‐friendly materials has become immensely important. Two of the most promising materials in this respect are silk and paper, and this progress report will investigate their unique properties for both photonic and electronic applications. These two natural materials have been intensively studied in the last decades and have shown promising aspects for use in future green technologies. [ABSTRACT FROM AUTHOR]

Breakthrough research may signal shifts in science, technology, and innovation systems. Early identification of breakthrough research is important not only for scientists, but also for policy makers and R&D experts in developing R&D strategies and allocating R&D resources. Researchers mostly use scientific papers data to identify potential breakthrough research, but they rarely make use of Twitter data related to scientific research and machine learning methods. Analysis of Twitter data is of great significance for us to understand the public's perception of potential breakthrough research and to identify potential breakthrough research. Machine learning methods can assist us in predicting the trend of events by utilizing prior knowledge and experience. Therefore, this paper proposes a framework for identifying potential breakthrough research using machine learning methods with scientific papers and Twitter data. We select solar cells as a case study to verify the valid and flexible of this framework. In this case, we use machine learning method to discover potential breakthrough research from scientific papers, and we use Twitter data mining to analyze Twitter users' sense of and response to the discovered potential breakthrough research, which aims to achieve a more extensive and diverse assessment of the discovered potential breakthrough research. This paper contributes to identifying potential breakthrough research, as well as understanding the emergence and development of breakthrough research. It will be of interest to R&D experts in the field of solar cell technology. • We proposed a framework for identifying potential breakthrough research using machine learning method. • We found 8 potential breakthrough researches in the field of solar cell technology in 2015. • Twitter data mining could be used to assist in identifying potential breakthrough research. [ABSTRACT FROM AUTHOR]

The formaldehyde‐free resin impregnated paper is expected to be applied to interior decoration materials and furniture. This is not only conducive to the development of indoor environment toward green and environmental protection, but also beneficial to people's health. In this work, the formaldehyde‐free resin (waterborne polyurethane and waterborne acrylic acid) mixed with cellulose nanocrystal (CNC) were separately coated on a raw decorative paper by a dipping method to obtain formaldehyde‐free impregnated paper with outstanding surface bound strength and abrasion resistance. The surface bound strength and abrasion resistance were tested by means of universal ability test machine and abrasion tester. The results showed that waterborne polyurethane and waterborne acrylic acid enhanced by CNC had excellent dispersion, and the bonding properties of formaldehyde‐free impregnated paper were improved by 41.3 and 33.3%, respectively. Meanwhile, the abrasion resistance of formaldehyde‐free impregnated paper was improved by the crystal effect of CNC. © 2020 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2020, 137, 48931. [ABSTRACT FROM AUTHOR]

The paper industry is a traditional industry with extensive consumption of resources and energy and more pollutant discharge. This industry is closely related to production and life activities. Under the general requirement of "to step up conservation of the Yangtze River and stop its over development", the paper industry in the Yangtze River Economic Belt should urgently undergo green transformation and development. Based on the undesirable slack-based measure model, spatial gravity center, Kernel density function, Theil index, and panel model, this study examines the green development efficiency and its influencing factors of the paper industry in the Yangtze River Economic Belt from 2001 to 2016. Results showed the following: (1) from 2001 to 2016, the green development efficiency of the paper industry in the Yangtze River Economic Belt had been steadily improved, but the overall efficiency value is not high, which has a great potential for improvement. The green development efficiency of the paper industry in the Yangtze River Economic Belt presents the regional differentiation law of gradient increasing in the upper, middle, and lower reaches. (2) According to the gravity center trajectory, the efficiency center of the green development of the paper industry in the Yangtze River Economic Belt is located in the middle reaches of Hunan Province and Hubei Province and moves to the southwest. This case indicates that the green development efficiency of the paper industry in provinces and cities in the southwest has been improved. (3) The regional differences in the green development efficiency of the paper industry in the Yangtze River Economic Belt show the characteristics of narrowing fluctuations. The regional differences are the primary sources of the difference in the green development efficiency of the paper industry. (4) The enterprise scale, science and technology investment, and industrial structure have significant positive effects on the green development efficiency of the paper industry in the Yangtze River Economic Belt. On the contrary, environmental regulation and foreign investment intensity have significant negative effects. However, the above factors have different effects on the green development efficiency of the paper industry in the upper, middle, and lower reaches of the Yangtze River Economic Belt. [ABSTRACT FROM AUTHOR]

The world in the 21st century is confronted with multifaceted challenges against rapid climate change and continuous ecological disturbances caused by revolutionary socio‐economic developments, accelerated expansion of disposable electronic gadgets, and growing dependence on unrecyclable raw materials, among others. The ever‐increasing consumer demand for electronic devices is significantly contributing to the world's fastest‐growing waste stream, known as electronic waste (e‐waste), which is becoming an environmental threat at an alarming rate due to its toxic legacy. The ever‐shortening lifespan of smart technologies has created a "tsunami of e‐waste," as the United Nations has characterized it, with 50 million tons accumulated each year, of which only 20% undergo formal e‐recycling. Therefore, the challenge of optimizing the current resources management models with an aim of improving the manufacturing processes and lifecycles of electronic devices, as well as building a circular economy, has become significantly prominent. Paper/cellulose, which covers a wide range of essential needs in everyday scenarios (from packaging to writing utilities), constitutes promising candidates for the effective achievement of a circular economy. Particularly, cellulose is revealed as an advantageous material for electronic applications because of its abundant availability, which contributes to its cost‐effectiveness, straightforward fabrication process, and high recyclability and reproducibility. [ABSTRACT FROM AUTHOR]

The forest tree had become beneficial as the major source of raw materials for paper production. However, the main concern is the dwindling forest tree resources. Fibre substitution from non-wood sources can overcome this problem. The abundance of napier grass is characterized as agro waste material, and has a high potential to become one of the substitution fibres. The objective of this work was to analyse the chemical composition of napier grass and to investigate the morphological properties of napier grass fibre. The chemical composition of the fibre was analysed by the TAPPI test method, chlorination method and Kuchner-Hoffner method. The results indicate the potential of napier grass as a fibre. The napier grass morphology showed a condensed composition of fibre structure under a scanning electron microscope. This study of napier grass indicated the suitability for promoting the green technology in developing an eco-friendly product. [ABSTRACT FROM AUTHOR]

This paper examines community, environmental, and human rights activists’ influence on adoption of environmentally-friendly technologies in Indonesia’s pulp and paper industry. The story begins with conflict over the development of an export pulp mill in North Sumatra in the 1980s and continues with the adoption of environmental technologies in Indonesia’s pulp and paper industry in the 1990s. Organising around a number of specific events associated with pulp industry development, activists drew attention to the industry which led to a strengthening of government environmental regulation and enforcement, and hastened the adoption of cleaner production technologies. [ABSTRACT FROM AUTHOR]

Pulp and paper industry is one of the eight critical industries for controlling carbon emissions in China. As the paper productions increase, the pulp and paper industry may fail in achieving the emission reduction target due to the rapid growth of greenhouse gas emissions. The study uses life cycle assessment to evaluate the greenhouse gas emissions of China's papermaking industry chain in order to propose emission reduction targets and find ways to achieve the emission reduction targets for China's papermaking industry. Considering the net carbon absorption of plant raw materials and the extensive paper industrial chain, this study obtained that the greenhouse gas emission of major paper types under corresponding pathways ranges from 1.96 t CO 2 eq/t paper to 6.55 t CO 2 eq/t paper. Plant carbon sink can reduce greenhouse gas emissions by 14.3%–42.9% under virgin fiber-based pathways. This study found that the greenhouse gas emissions caused by terminal products of 814 papermaking enterprises counted in China were 282.23 Mt CO 2 eq in 2015, accounting for 10.23% of the total greenhouse gas emissions of manufacturing industries and construction. To achieve the emission reduction target by 2050, emissions of the pulp and paper industry in China have been investigated from the perspective of three ideal energy structures. The research findings show that the emission reduction target of Intended Nationally Determined Contribution will be achieved in 30 years if the energy structure of the pulp and paper industry is adjusted only based on the optimal 450 scenario. In terms of other energy structures, the pulp and paper industry should assume afforestation areas ranged from 5900 km2 to 223,000 km2 at least to make up for the greenhouse gas emissions beyond allowance, which accounts for 0.85%–32.16% of the existing areas of plantation forestry in China. • Statistics in this work reveal the problem of excess capacity in China's pulp and paper industry. • GHG emission of paper products in different pathways range from 1.95 to 6.52 t CO 2 eq/t paper. • Energy supply mode transition is conductive to green development of pulp and paper industry. • Pulp and paper enterprises should assume afforestation areas to achieve emission reduction targets. [ABSTRACT FROM AUTHOR]

Background: The consumption of 'fast fashion', which is expedited by costeffective e-commerce systems, represents one of the major factors contributing to the acceleration of climate change. An emerging approach to steer consumers in the direction of more sustainable purchase decisions is digital nudging. This paper explores digital nudging in the context of green fashion e-commerce by testing the effectiveness of two nudging strategies on the decision to choose green fashion products (GFP) over regular fashion items. Method: This study was conducted as a between-subject online experiment (n=320) with four conditions simulating an e-commerce scenario. The participants were presented with different products: one was ecologically friendly, and another was the regular option. Depending on their randomized group allocation, the participants experienced a default nudge, a social norm nudge, a combination of both strategies, or no nudge. In addition, we conducted 10 qualitative interviews to gain a deeper understanding of consumers' decision process. Results: Our experiment failed to demonstrate statistically significant relationships between the various nudging strategies and GFP purchase decisions. However, additional explorative analyzes confirmed a backfire effect for the combination of nudging strategies. This reveals the previously overlooked influence of participants' identification on the effectiveness of digital nudging strategies. In addition, qualitative interviews revealed individual factors that influence sustainable e-commerce purchase decisions. Conclusion: This study contributes to information systems research by explaining the differences in the effectiveness of different nudging strategies regarding highinvolvement compared to low-involvement products. Moreover, it provides empirical evidence of a backfire effect resulting from a combination of digital nudging strategies (i.e., digital nudge stacking). Finally, the study underscores the leverage that individual factors have on both GFP purchase decision and the effectiveness of nudges. [ABSTRACT FROM AUTHOR]

In this work, the latest development of monolithic microLED display for Augmented Reality (AR) applications is reported, with the focus on R/G/B monochrome display panels and polychrome projectors from Jade Bird Display Limited (JBD). State‐of‐the‐art Red, Green, and Blue microLED display panel performances are presented. Integration of R/G/B monochrome panels through x‐cube led to the world's smallest full‐color display projector with only 0.4cc in volume, ready to be combined with optical combiner towards smart glasses and AR glasses applications. The implementation of MIPI interface and uniformity correction further enhanced flexibility, functionality, and image quality for faster adoption of this new microLED display technology. [ABSTRACT FROM AUTHOR]

We report on the progress of microLED microdisplay development at JBD. Mass production of 4.0 µm pixel pitch Red, Green and Blue monochrome panels have commenced, and engineering samples of 2.5 µm pitch panels are now available. The characteristics of the Red panels will be discussed and preliminary results for a 5.0 µm pitch single panel native color monolithic RGB technology shown. [ABSTRACT FROM AUTHOR]

A new biotechnological sequence for decolorizing red and black colored paper was developed to reduce the environmental impact of the chemicals used in paper recycling processes. Commercially available low-redox potential laccase from Myceliophthora thermophila , which operates optimally under alkaline conditions, was used in combination with natural mediators to make the process even greener. Based on the optical properties of the resulting decolorized paper, red and black dyes were efficiently removed by all laccase–mediator systems. The best results were provided by the laccase–methyl syringate combination, followed by the laccase–acetosyringone system and the laccase–syringaldehyde system. The decolorization rate for red paper achieved with the laccase–methyl syringate treatment exceeded that obtained with ozone. Red was removed by about 98% by combining two enzymatic stages and hydrogen peroxide stage, and black by 65%, without altering the physical properties of the colored paper in either case. A sequence combining oxidative and reductive (formamidine sulfinic acid) chemical treatments led to comparable optical and physical properties for the two types of paper. The effects of Myceliophthora thermophila laccase and methyl syringate were similar to those of high-redox potential laccase from Trametes villosa combined with either methyl syringate or the synthetic mediator violuric acid. Image 1 • The laccase-natural mediator system was able to remove red and black dyes from paper. • Methyl syringate was the best mediator to decolorize papers. • Higher dye removal was produced by biotechnological stages than by chemical stages. • Both, low and high-redox potential laccases can be used to produce decolorization. • Several optical parameters were measured to assess paper decolorization. [ABSTRACT FROM AUTHOR]

Green trade barriers are often seen as a catalyst that promotes exporting countries to develop green technologies. However, by distinguishing the green technology behavior of enterprises into green technology transformation and green technology innovation, this paper finds that although green trade barriers can encourage enterprises in exporting countries to increase investment in green technology transformation in order to obtain rapid market access, they crowd out the resources of green technology innovation of enterprises. In other words, green trade barriers will strengthen enterprises' dependence on the introduction of green technologies, weaken their innovation capabilities, and increase the risk of being locked in the middle of the global industrial chain, creating a trap effect. Using the data of enterprises in the heavily polluting industry of A-shares from 2009 to 2021, this paper confirms the existence of the trap effect. In addition, this paper finds that due to the influence of short-sightedness of managers, alleviating corporate financing constraints can enhance the promotion effect of green trade barriers on the green technological transformation of enterprises, but cannot reduce its inhibiting effect on green technology innovation. The study also finds that even if the time window is extended to the medium and long term, green trade barriers cannot have a significant positive impact on enterprises' green technology innovation. Therefore, the government should not overestimate the role of green trade barriers in encouraging green development and green technology innovation, nor should it rely too much on loose financing policies. In contrast, government should formulate targeted industrial policies to help enterprises overcome green trade barriers through technological innovation. [ABSTRACT FROM AUTHOR]