Lei Wang
Research Subjects
Research Interests
Lei Wang has a total of 7 co-authors. Here are the top co-authors by number of shared publications:
- Chunyu Wang
State Key Laboratory of Chemistry for NBC Hazards Protection, Beijing 102205, China
1 shared publication - Hao Han
State Key Laboratory of NBC Protection for Civilian, Beijing 102205, China
1 shared publication - Hao Wang
State Key Laboratory of Chemistry for NBC Hazards Protection, Beijing 102205, China
1 shared publication - Jian Kang
State Key Laboratory of Chemistry for NBC Hazards Protection, Beijing 102205, China
1 shared publication - Yanchun Dong
State Key Laboratory of Chemistry for NBC Hazards Protection, Beijing 102205, China
1 shared publication - Yuan Sun
State Key Laboratory of NBC Protection for Civilian, Beijing 102205, China
1 shared publication
Latest Publications
- Open Access
- 17 October 2022
- Published by MDPI AG in Separations
- Vol. 9 (10) , 315
Surface Acidification of BiOI/TiO2 Composite Enhanced Efficient Photocatalytic Degradation of Benzene
A novel BiOI/TiO2 nano-heterojunction was prepared using hydrothermal and sol-gel methods. The composite material was characterized by X-ray diffraction, ultraviolet-visible diffuse reflection spectroscopy, scanning electron microscopy, and transmission electron microscopy. The crystallinity and response to light of BiOI/TiO2 were controlled by preparation conditions such as the optimal solvent condition and heat treatment temperature. The photocatalytic activity of the BiOI/TiO2 catalyst was examined using benzene as a test molecule. The benzene degradation rate of the composite catalyst under visible light was enhanced compared to pure TiO2, thus reaching 40% of the original benzene concentration, which increased further to >60% after surface acidification. The fluorescence spectra, light current, and electron paramagnetic resonance confirmed that the enhanced activity was attributed to carrier separation by the heterojunction. The acid sites and active chlorine of hydrochloric acidification offer a novel mechanism for photocatalytic reactions.
- 17 October 2022
- Published by MDPI AG in Separations
- Vol. 9 (10) , 315
Open AccessSurface Acidification of BiOI/TiO2 Composite Enhanced Efficient Photocatalytic Degradation of Benzene
A novel BiOI/TiO2 nano-heterojunction was prepared using hydrothermal and sol-gel methods. The composite material was characterized by X-ray diffraction, ultraviolet-visible diffuse reflection spectroscopy, scanning electron microscopy, and transmission electron microscopy. The crystallinity and response to light of BiOI/TiO2 were controlled by preparation conditions such as the optimal solvent condition and heat treatment temperature. The photocatalytic activity of the BiOI/TiO2 catalyst was examined using benzene as a test molecule. The benzene degradation rate of the composite catalyst under visible light was enhanced compared to pure TiO2, thus reaching 40% of the original benzene concentration, which increased further to >60% after surface acidification. The fluorescence spectra, light current, and electron paramagnetic resonance confirmed that the enhanced activity was attributed to carrier separation by the heterojunction. The acid sites and active chlorine of hydrochloric acidification offer a novel mechanism for photocatalytic reactions.