期刊
CERAMICS INTERNATIONAL
卷 47, 期 18, 页码 26248-26259出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.ceramint.2021.06.033
关键词
BiOI; Ag2WO4 heterojunction; Visible light irradiation; Photocatalytic degradation; Z-scheme; Sudan red III
资金
- National Natural Science Foundation of China [21576225]
- Scientific and Technological Department of Sichuan Province [2019YFG0054]
A novel heterojunction photocatalyst of g-C3N4/BiOI/Ag2WO4 was synthesized and showed excellent activity in degrading Sudan red III, with a degradation rate of up to 89% in 90 minutes. This new photocatalyst significantly shortened the degradation time while improving the degradation rate.
In recent years, photocatalytic technology has attracted wide attention in the treatment of dye wastewater due to its green and efficient performance. In this study, a novel heterojunction of g-C3N4/BiOI/Ag2WO4 was synthesized and the photocatalytic activity was evaluated through degrading Sudan red III. The results of XRD, FT-IR, SEM, TEM and XPS revealed that BiOI and Ag2WO4 were successfully loaded onto the surface of g-C3N4. According to the results of UV-vis DRS and PL spectra, the g-C3N4/BiOI/Ag2WO4 exhibited excellent photocatalytic activity. Moreover, the g-C3N4/BiOI/Ag2WO4 showed an excellent efficiency for the degradation of Sudan red III and the degradation rate up to 89% in 90 min. The novel photocatalyst significantly shortened the degradation time, and improved the degradation rate. This study provided a theoretical basis for efficient degradation of Sudan red III.
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