非金属原子掺杂石墨烯光催化降解的研究进展

Research Progress on Photocatalytic Degradation of Graphene Doped by Non-metal Atom

光催化作为一种新兴的环境污染处理技术受到了越来越多研究者的关注。石墨烯是一种零带隙电子结构的材料,使其不能单独应用于光催化。目前主流的光催化剂大多是贵金属(Au、Pt、Ru、Pd等)或金属氧化物(TiO_2、BiOCl、Bi_2O_3等)与石墨烯形成的复合材料。采用非金属原子掺杂到石墨烯晶格中,可以打开石墨烯的带隙,应用于光催化中,这样不仅可以减少金属资源的利用,还避免的金属后处理污染。该研究领域尚处于起步阶段,只有很少的一部分相关研究,该领域急需发展。

As an emerging environmental pollution treatment technology, the photocatalysis is attracting more and more attention. Graphene is a zero material with zero bandgap electronic structure, so it can t be applied separately to photocatalysis. At present, most of the mainstream photocatalysts are composite graphene materials formed by noble metals （Au, Pt, Ru, Pd, etc ） or metal oxides （TiO 2, BiOCl, Bi 2O 3, etc ）. Non-metal atoms doped into the graphene lattice can open the bandgap of graphene and be used in photocatalysis, which can not only reduce the use of metal resources, but also avoid the metal post-processing pollution. The field of research is still in its infancy and there are only a few relevant studies. This field is in urgent need of development.