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ZnZrOx solid solution is a promising catalyst for the hydrogenation of CO2 to methanol, but precise design of the nanostructure to enhance catalytic performance remains a significant challenge. Herein, a ZnZrOx-based solid solution (ZnZrOx-MD) nanoparticle catalyst with uniform metal dispersion and remarkable CO2 activation ability was developed via calcination of metal–organic frameworks [MOFs, viz., PCN-223-(Zn)] with mixed metal (Zr and Zn) as solid precursors. It was found that the ZnZrOx-MD nanoparticle catalyst outperformed its counterparts prepared using a traditional deposition–precipitation method (ZnZrOx-TD). Furthermore, the effects of the micromorphology and crystal composition on the catalytic performance of ZnZrOx-MD were systematically investigated. Comprehensive characterization results reveal that ZnZrOx-MD contained abundant oxygen vacancies, large specific surface area, and uniform metal dispersion, which collectively contributed to its excellent CO2 hydrogenation performance, resulting in a high methanol selectivity of 77.2% at 320 °C. In situ DRIFTS experiments confirm the mechanism for the CO2 hydrogenation to methanol over the ZnZrOx nanoparticle catalysts involved the initial formation of HCOO* species, followed by subsequent hydrogenation to generate CH3O* and ultimately produce methanol. Overall, this work highlights the potential benefits of MOFs as thermal decomposition precursors for the fabrication of solid-state catalysts with unique properties. [ABSTRACT FROM AUTHOR]

Organic pollutants, distinguished by their persistence and bioaccumulation in the environment, pose significant ecological and health threats that surpass those of traditional pollutants. Crucial to understanding their environmental behavior, health risks, and mitigation strategies, is the screening and identification of these pollutants. This process indispensably employs functional materials, among which molecularly imprinted polymers (MIPs) prove to be particularly advantageous because of their specific recognition capabilities and extensive application range. This review presents cutting-edge techniques and strategies for the fabrication of MIPs, including surface imprinting techniques and dummy molecular strategies. It encapsulates the last five years' advancements in MIP research within the domains of sample pretreatment, as well as optical and electrochemical sensing analysis. The objective of this discourse is to potentially foster the evolution of MIP technology and establish the groundwork for its transition from lab-scale to commercial production. [ABSTRACT FROM AUTHOR]

With the changes in China’s demand for innovation, the State Council, the Ministry of Education, the National Science and Technology Administration, and other departments have issued several proposals and opinions, and colleges and universities should actively adjust the policies of innovation and entrepreneurship education to respond to the call. Colleges and universities implement innovation and entrepreneurship-related systems, but the effect is unsatisfactory. Its essence does not lie in the determination and attitude of colleges and universities, but in the formulation of the program system itself that is not close to reality and has not mastered scientific methods. As a result, there are many problems in colleges and universities, such as scattered scientific research resources, low quality of scientific and technological achievements, low patent conversion rate, and slow progress in the integration of production and education. After observing from the perspective of knowledge innovation, it proposes to strengthen the reform of ideological education and training, strengthen the research on quality standards of innovation and entrepreneurship, and deepen the integration of production and education, to solve the current situation of difficult innovation and entrepreneurship in colleges and universities.