Reduced Graphene Oxide (rGO)/BiVO4 Composites with Maximized Interfacial Coupling for Visible Lght Photocatalysis
Reduced Graphene Oxide (rGO)/BiVO4 Composites with Maximized Interfacial Coupling for Visible Lght Photocatalysis
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DOI：
10.1021/sc5004665
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发表时间：
2014-08
影响因子：
8.4
通讯作者：
Tuo Wang;Changjiang Li;J. Ji;Yijia Wei;Peng Zhang;Shengping Wang;Xiaobin Fan;Jinlong Gong
中科院分区：
文献类型：
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作者：
Tuo Wang;Changjiang Li;J. Ji;Yijia Wei;Peng Zhang;Shengping Wang;Xiaobin Fan;Jinlong Gong
本文介绍了界面耦合程度最高的还原氧化石墨烯(RGO)/BiVO4复合材料的制备及其在可见光催化剂中的应用。薄的RGO薄膜(~lt；5 nm)可以完全覆盖BiVO4多面体，通过蒸发诱导自组装过程暴露出高活性的(040)面。除了增加了rGO的表面吸附作用外，BiVO4的光活性也通过降解亚甲基蓝在rGO上得到了显著的提高。光催化活性的提高归功于形成了定义良好的rGO/BiVO4界面，大大提高了电荷分离效率。
This paper describes the construction of reduced graphene oxide (rGO)/BiVO4 composites with maximized interfacial coupling and their application as visible light photocatalysts. Thin rGO sheets (<5 nm) could completely cover BiVO4 polyhedrons with highly active (040) facets exposed through an evaporation-induced self-assembly process. In addition to the increased surface adsorption effect of rGO, a considerable enhancement of the photoactivity of BiVO4 has been demonstrated through the degradation of methylene blue upon the covering of rGO. The improved photocatalytic activity is attributed to the formation of well-defined rGO/BiVO4 interfaces, which greatly enhances the charge separation efficiency.