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Your search keyword '"Chu, Shushu"' showing total 16 results
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16 results on '"Chu, Shushu"'

14. Flower-like In2O3/ZnO heterostructure with accelerated multi-orientation electron transport mechanism for superior triethylamine detection

Author

Qi Zhang, Chu Shushu, Lin Ziqiong, Jia Guo, Hang Li, and Qian Ma

Subjects
Materials science, Nucleation, General Physics and Astronomy, Heterojunction, Surfaces and Interfaces, General Chemistry, Condensed Matter Physics, Electron transport chain, Surfaces, Coatings and Films, Crystal, chemistry.chemical_compound, Adsorption, chemistry, Chemical engineering, Nanorod, Selectivity, Triethylamine
Abstract

Flower-like In2O3/ZnO heterostructures consisting of the assembled needle-like nanorods derived from In2O3 precursor/ZIF-8 have been prepared by a two-step approach. Flower-like In2O3/ZnO structures can be achieved by adjusting the nucleation competition and crystal surface matching of In2O3 and ZnO, leading to the enhancement of gas adsorption on the surface, chemical reaction kinetics, and the electron transport efficiency. In/Zn-2 sensors exhibit excellent gas-sensing response value of 188.01 to 100 ppm triethylamine at 120 °C as well as good gas selectivity, long-term stability, and linear relationship compared with pure In2O3, mainly attributed to the accelerated multi-orientation electron transport mechanism within flower-like In2O3/ZnO heterostructures. In addition, In/Zn-2 samples can be utilized to detect the practical triethylamine gas released during the storage of marine organism (fishes).

Published
2021

15. ZIF-8-Induced CeO2/ZnO Nanobelts with Curled Edges Accelerating Cycling Efficiency of Ce3+/Ce4+ for Superior Photocatalytic Performance.

Author

Zhang, Qi, Guo, Jia, Li, Hang, Chu, Shushu, and Ma, Qian

Subjects
NANOBELTS, WASTEWATER treatment, INDUSTRIAL wastes, SEWAGE, CRYSTAL growth, METHYLENE blue, PHOTODEGRADATION, ION recombination
Abstract

ZIF-8-induced photocatalytic CeO2/ZnO nanobelts with curled edges were synthesized by following a facile electrospinning method for low-cost photodecomposition of methylene blue (MB). Phase structure and morphological evolution of different samples can be dominantly adjusted by introducing appropriate amount of zeolitic imidazolate framework-8 (ZIF-8) into the precursor solution. CeO2/ZnO heterostructures exhibit the optimal 96.59% photodegradation of MB organic pollutant in 70 min, approximately 7.43 times than that of pure CeO2. The curled microstructure can produce tunable surface activity and a unique electron transport process, facilitating the cycling efficiency of Ce3+/Ce4+ pairs on the surface of materials. Meanwhile, the formation of CeO2-ZnO heterojunctions contributes to regulating the crystal nucleation and growth during the high-temperature reaction and reducing the recombination rate of electron/hole pairs during the photocatalytic degradation. Thus, the obtained CeO2/ZnO composites may be a promising candidate for MB degradation in industrial wastewater treatment. [ABSTRACT FROM AUTHOR]

Published
2022
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16. Cubic-like In2O3/α-Fe2O3 heterostructures assembled with 2D porous nanoplates for superior triethylamine gas-sensing behavior

Author

Hang Li, Qian Ma, Jia Guo, Chu Shushu, and Qi Zhang

Subjects
Materials science, Mechanical Engineering, Nucleation, Trimethylamine, Heterojunction, Condensed Matter Physics, law.invention, Crystal, chemistry.chemical_compound, chemistry, Chemical engineering, Mechanics of Materials, law, Specific surface area, General Materials Science, Calcination, Porosity, Triethylamine
Abstract

Cubic-like In2O3/α-Fe2O3 heterostructures assembled with 2D porous nanoplates have been prepared by solvothermal method and subsequent calcination process. The introduction of Fe3+ component plays an important role for the morphological evolution of In2O3-based samples with unique crystal nucleation and growth mechanism. Compared with flower-like In2O3 self-assemblies composed of tower-like structural units, In2O3/α-Fe2O3 composites can display superior trimethylamine (TEA) gas-sensing behavior. For example, the optimal working temperature is reduced from 250 to 170 °C, and the response value of In/Fe-2 materials is 375.43, which is about 6.23 times than that of In2O3 sensors. The enhanced gas-sensing properties are mainly attributed to large specific surface area (234.4 m2/g), the effective In2O3-α-Fe2O3 heterojunctions, unique surface/interface effects, and tunable electron transmission mechanism.

Published
2021

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