Research progress on photocatalytic degradation of organic pollutants by graphene/TiO2 composite materials

doi:10.11949/j.issn.0438-1157.20151581

Abstract

Abstract:

Graphene is a new kind of carbon nano-materials with a large specific surface area and excellent electrical conductivity. When it is incorporated into TiO₂ semiconductor to form a composite materials, TiO₂photocatalytic performance could be greatly enhanced and the composite has extensive application prospect in the field of photocatalysis. Graphene in titanium dioxide/graphene nanocomposites can promote effectively separation of electron and hole, and enhance the absorption efficiency of TiO₂ surface for organic pollutions in certain extent. In this review, the preparation methods of graphene /TiO₂ composite nanomaterials and their application in photocatalytic degradation of organic pollutants are reviewed. And the mechanism of photocatalytic enhancement by graphene/TiO₂ composites is also analyzed. Finally, the future prospect on the trends of graphene/TiO₂ composite photocatalyst is also given.

Key words: graphene, TiO₂, photocatalysis, nanomaterials, degradation, organic pollutants, catalyst

摘要：

石墨烯是一种新型的碳纳米材料,具有超大的比表面积和优良的导电性能,将石墨烯与TiO₂复合可显著提高复合材料的光催化性能,在光催化领域具有广泛的应用前景。主要介绍了石墨烯/TiO₂复合纳米材料的制备方法以及在光催化降解有机污染物方面的应用,并分析了石墨烯/TiO₂复合材料促进光催化机理,最后对石墨烯/TiO₂复合光催化剂未来的发展趋势提出了展望。

关键词: 石墨烯, TiO₂, 光催化, 纳米材料, 降解, 有机污染物, 催化剂

CLC Number:

X703

LIU Fang, FAN Fengtao, LÜ Yucui, ZHANG Shuang, ZHAO Chaocheng. Research progress on photocatalytic degradation of organic pollutants by graphene/TiO₂ composite materials[J]. CIESC Journal, 2016, 67(5): 1635-1643.

刘芳, 樊丰涛, 吕玉翠, 张双, 赵朝成. 石墨烯/TiO₂复合材料光催化降解有机污染物的研究进展[J]. 化工学报, 2016, 67(5): 1635-1643.

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Research progress on photocatalytic degradation of organic pollutants by graphene/TiO₂ composite materials

石墨烯/TiO₂复合材料光催化降解有机污染物的研究进展

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