AgBi(WO4)2: A New Modification Material to Bi2WO6 for Enhanced and Stable Visible‐Light Photocatalyic Performance |
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| Authors: | Cuiyun Feng Dr Yuming Dong Prof?Dr Pingping Jiang Dr Guangli Wang Jingjing Zhang Xiuming Wu Prof?Dr Chi Zhang |
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| Affiliation: | Key Laboratory of Food Colloids and Biotechnology, (Ministry of Education of China), School of Chemical and Material Engineering, Jiangnan University, Wuxi, P.R. China |
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| Abstract: | In this work, we report a novel AgBi(WO4)2–Bi2WO6 heterostructure, which was designed and synthesized by using a simple hydrothermal method. Methyl orange was used as a representative dye indicator to evaluate the visible‐light catalytic activity and the catalytic mechanism was investigated. The as‐synthesized AgBi(WO4)2–Bi2WO6 composite displayed a 43 times higher photocatalytic activity than Bi2WO6. Owing to the matched band gap and distinctive heterostructure, AgBi(WO4)2–Bi2WO6 reveals a high visible‐light response and high‐efficiency utilization of both photogenerated electrons and holes. AgBi(WO4)2 reveals a similar energy level to and good lattice match with Bi2WO6, which are favorable qualities for band bending and fluent electron transfer. Furthermore, the photoexcited electrons can produce oxygen to generate .O2? radicals, which is vital for the overall utilization of both holes and electrons. This is the first example of AgBi(WO4)2 being used as photocatalytic material. |
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| Keywords: | electron transfer photocatalysts photochemistry silver tungstates |
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