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Your search keyword '"Hu, Gengxin"' showing total 15 results
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15 results on '"Hu, Gengxin"'

13. Hydrangea‐like ZnO nanospheres on Al substrates via hydrothermal synthesis for photocatalytic activity.

Author

Zeng, Zhi, Gao, Shiyong, Wang, Guangning, Ma, Xinzhi, Sang, Dandan, Jiao, Shujie, Wang, Dongbo, Jia, Jie, Hu, Gengxin, and Wang, Jinzhong

Subjects
HYDROTHERMAL synthesis, OPTICAL properties, X-ray photoelectron spectroscopy, REACTION time, SCANNING electron microscopy, ZINC oxide
Abstract

Hydrangea‐like ZnO nanospheres were fabricated on Al substrates via a facile hydrothermal method with only one step. Scanning electron microscopy, energy‐dispersive spectroscopy, X‐ray diffraction, X‐ray photoelectron spectroscopy, and photoluminescence were used to investigate their morphology, component, structure, and optical properties. The hierarchical nanospheres are fabricated by 2D nanosheets with the shape of 3D sphere. By adjusting the reaction time, the formation process was monitored. The photocatalytic activity of ZnO nanospheres was also investigated for their dye degradation, and they exhibit good photocatalytic ability to congo red, with the degradation rate of 98.4%. Besides, they have universal catalysis effect on methyl orange. [ABSTRACT FROM AUTHOR]

Published
2020
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14. Methods used for estimating fugitive emission rates of air pollutants and their application in China

Author

Yang Xu and Hu Gengxin

Subjects
Buffer zone, Waste management, Impact assessment, Emission standard, Environmental engineering, Air pollution, General Medicine, Management, Monitoring, Policy and Law, medicine.disease_cause, Pollution, Pollution prevention, medicine, Environmental science, Environmental impact assessment, Fugitive emissions, China, General Environmental Science
Abstract

This paper presents a series of methods for measuring and estimating fugitive emission rates, which have been widely applied in environmental impact assessment and establishing national emission standard and health protection zone (buffer zone) standards in China.

Published
2013

15. A study of diffusion models applied to dust emissions from industrial complexes

Author

Xia Liguo, Hu Gengxin, and Hong Yanfeng

Subjects
Field (physics), Point source, business.industry, Industrial area, Environmental engineering, Air pollution, General Medicine, Management, Monitoring, Policy and Law, Atmospheric dispersion modeling, medicine.disease_cause, Pollution, medicine, Environmental science, Diffusion (business), Process engineering, business, General Environmental Science
Abstract

Industrial complexes may release dust emissions through several to up to tens of stacks, as well as via fugitive area sources. Several diffusion models for small-scale fugitive dust sources have been developed and combined with a point source model to form a series of models for industrial complexes. The applicable area of these models and the methods for obtaining the main parameters in the models have been tested and verified using measurement data gained from several field experiments. The models developed in this paper can give quite satisfactory results when compared to other current models.

Published
1992
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