光催化
石墨烯
材料科学
氧化物
拉曼光谱
异质结
纳米复合材料
堆积
热液循环
可见光谱
透射电子显微镜
扫描电子显微镜
化学工程
纳米技术
复合材料
光电子学
化学
光学
催化作用
冶金
有机化学
工程类
物理
作者
Jie Xiao,Jinhua Zhang,Wenchen Liu,Tianqi Huang,Yang Qu,Hao Chen,Zhidong Lin
标识
DOI:10.1088/2053-1591/aade7a
摘要
2D/2D stacking heterostructures are highly desirable in constructing efficient photocatalysts. In this paper, reduced graphene oxide and Bi2MoO6 2D/2D nanocomposites were achieved by a two-step hydrothermal method. The combined characterizations including x-ray diffraction, Raman, scanning electron microscopy and transmission electron microscopy indicated the successful formation of rGO/Bi2MoO6 plate-on-plate heterojunction structure, where Bi2MoO6 nanosheets with average size about 100–200 nm dispersed on the surface of large-size graphene plates. According to the test of photocatalytic activity, rGO/Bi2MoO6 compositions exhibited an excellent photocatalytic capacity to Cr (VI) reduction. The composite containing 2.5% rGO shows the optimal photocatalytic activity, and its reduction rate to Cr (VI) is 94% in 30 min, twice higher than that of pure Bi2MoO6. The visible light absorption increasing and the improving of charge-carrier transference result in good photocatalytic performance of 2D/2D rGO-Bi2MoO6.
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