Abstract: Graphene has drawn extensive attention in the field of photocatalysis due to its excellent electronic structure and electronic transmission performance. The latest development of graphene-based nanocomposite，such as graphene and graphene oxide，TiO2/graphene，CdS/graphene and metallate/graphene，in the application of water splitting for hydrogen was summarized. Photosensitization，loading noble metal and doping nonmetal，and how they influence the photocatalysis activity of graphene-based nanocomposites were discussed. Finally，the structure of graphene-based nanocomposite and its underlying mechanism of photocatalytic enhancement were two important factors needing further study. The photocatalysts with higher photocatalytic activity for water splitting producing H2 could be expected.

Key words: graphene, photocatalysis, hydrogen

摘要： 由于石墨烯优异的电子结构和电子传输性能，使得其在光催化领域的研究得到了广泛的关注。本文简要介绍了最新以石墨烯为基础的复合光催化剂的制备方法及其在催化水分解制氢方面的应用，重点评述了石墨烯及其氧化物、TiO2与石墨烯类复合物、CdS与石墨烯类复合物、含氧金属酸盐与石墨烯类复合物等的光催化性能，简要说明了光敏化、贵金属负载、非金属掺杂等对复合物光催化性能的影响。最后，指出对于石墨烯与纳米材料复合物的结构及光催化作用的机理都有待于进一步的研究，以便充分利用石墨烯的二维平面结构制得具有较高光催化水解制氢活性的催化剂。

关键词: 石墨烯, 光催化, 氢气