期刊
REACTION KINETICS MECHANISMS AND CATALYSIS
卷 114, 期 1, 页码 357-367出版社
SPRINGER
DOI: 10.1007/s11144-014-0787-y
关键词
WO3; g-C3N4; Composite; Photocatalytic; Rhodamine B; Heterojunction
资金
- KFUPM [R15-CW-11, MIT11109, MIT11110]
- National Natural Science Foundation of China [51172044]
- National Science Foundation of Jiangsu Province of China [BK2011617]
- 333 project of Jiangsu province
- KACST under NSTIP [10-wat1240-10]
- [MIT-13104]
A series of WO3/g-C3N4 composite photocatalysts with different mass ratios were prepared by a simple pyrolysis method, using tungstic acid and melamine as the starting materials. The microstructure and optical properties of as-synthesized WO3/g-C3N4 composite photocatalysts were investigated by X-ray diffraction, UV-Vis diffuse reflection spectroscopy and photoluminescence spectroscopy. Compared with WO3, g-C3N4 and well-known commercial photocatalysts, an improved visible-light-induced photodegradation of Rhodamine B and methyl tertiary butyl ether in aqueous solution was observed on WO3/g-C3N4 composite, due to the high carrier separation efficiency at the interface between WO3 and g-C3N4. Moreover, the photoactivity and photostability of catalyst after many runs was also evaluated.
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