期刊
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY
卷 400, 期 -, 页码 -出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.jphotochem.2020.112661
关键词
Piezoelectric; Photocatalysis; Heterojunction; g-C3N4; MoS2
资金
- National Natural Science Foundation of China [51872138]
- Natural Science Foundation of Jiangsu Province [BK20181380]
- Key University Science Research Project of Jiangsu Province [15KJB430022]
- Qing Lan Project, Six Talent Peaks Project in Jiangsu Province [XCL-029]
- Priority Academic Program Development of the Jiangsu Higher Education Institutions (PAPD)
The less-than-ideal photogenerated electron-hole behaviors is one of the significant reasons for the low photocatalytic efficiency. In this work, organic piezoelectric material, PVDF, was used to restrain the recombination of photogenerated electron-hole of MoS2/g-C3N4 heterojunction photocatalyst, which aimed to enhance the photocatalytic performance. After being compounded with the PVDF, the photocatalytic activity of MoS2/g-C3N4 heterojunction can be increased by 66.8 %, which showed that the MoS2/g-C3N4 heterojunction had an excellent enhancement effect on the photocatalytic efficiency of the composite film. Compared with the pristine g-C3N4 photocatalyst piezoelectric film, the piezoelectric effect of heterojunction piezoelectric films varies with the different amounts of MoS2. Among these different piezoelectric films, the 10-M-CN-P film possess highest photocatalytic performance, possibly due to the best synergistical effect of piezoelectricity and heterojunction.
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