Ag₃PO₄/Bi₂WO₆ hierarchical heterostructures with enhanced visible light photocatalytic activity for the degradation of phenol

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• 作者：Guokai Fu ; Guanan Xu ; Shuiping Chen ; Li Lei ; Mengling Zhang
• 关键词：Bi2WO6 ; Ag3PO4 ; Heterostructures ; Photocatalytic
• 刊名：Catalysis Communications
• 出版年：2013
• 出版时间：5 October, 2013
• 年：2013
• 卷：40
• 期：Complete
• 页码：120-124
• 全文大小：826 K

文摘

The Ag₃PO₄/Bi₂WO₆ hierarchical heterostructures were prepared by a combination of hydrothermal technique and in situ precipitation method for the first time. The Ag₃PO₄/Bi₂WO₆ hierarchical heterostructures displayed enhanced visible-light photocatalytic activity against phenol. The enhanced photocatalytic activity could be attributed to the effective separation of photogenerated carriers driven by the photoinduced potential difference generated at the Ag₃PO₄/Bi₂WO₆ heterojunction interface. Repetitive tests showed that the Ag₃PO₄/Bi₂WO₆ hierarchical heterostructures maintained high catalytic activity over several cycles, and it had a better regeneration capability under mild conditions.