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石墨烯及其衍生物氧化石墨烯均有良好的物理和化学性质,其巨大的表面积和良好的共轭结构,使其成为改善光催化技术的优良基体。利用石墨烯与半导体复合制备新型复合光催化剂能够避免或改善半导体光催化剂的不足,例如,禁带较宽和对可见光不敏感等缺点。综述了石墨烯复合材料在降解有机污染物、水制氢、催化有机合成、催化CO2转化和催化杀菌等光催化中的应用。提出了通过改进复合物的制备技术以保持石墨烯的片层结构,以及开发多元的复合材料将成为该领域的重点研究之一。
Graphene and its derivatives Graphene oxide has good physical and chemical properties, its huge surface area and good conjugate structure, making it an excellent matrix to improve the photocatalytic technology. The use of graphene and semiconductor composite preparation of new composite photocatalyst can avoid or improve the lack of semiconductor photocatalyst, for example, wide band gap and is not sensitive to visible light shortcomings. The applications of graphene composites in the photocatalytic degradation of organic pollutants, hydrogen production, catalytic organic synthesis, catalytic CO2 conversion and catalytic sterilization are reviewed. It is proposed that one of the most important researches in this field is to improve the sheet structure of graphene by improving the preparation technology of composites and to develop multiple composite materials.