石墨烯基异质结光催化复合材料的研究进展

石墨烯具有低成本、高电子迁移率、透光率、比表面积与稳定性的特点,近年来在光催化领域作为助催化剂研究广泛。随着研究人员对石墨烯性质的深入研究,基于不同电子结构设计不同石墨烯基异质光催化复合材料,正成为光催化领域所关注的热点,但各类异质结的设计较不明朗。基于异质结设计理论与石墨烯电子结构,本文主要综述了石墨烯基肖特基异质结、II型异质结、Z-Scheme异质结、面内异质结几种光催化复合材料的研究进展,总结了石墨烯基异质光催化复合材料的设计方法与存在的问题,讨论了基于第一性原理的计算理论在石墨烯基异质结光催化复合材料设计中的作用,并展望了未来的发展方向。

Research Progress in Graphene Heterojunction Composite Photocatalyst

Due to unique properties,graphene has been researched profoundly in the field of photocatalyst as co-catalyst for its low cost,high electron mobility,transparency and stability.With the deeper understanding of graphene,designing different type of graphene heterojunction composite photocatalyst based on different electron structures has become the focus of related research field,but the design methodology remains unclear.By reviewing the research progress of graphene heterojunction composite photocatalyst like Schottky junction,type-II heterojunction,Z-Scheme heterojunction,in-plane heterojunction,the current problems and design methods are given based on the design principle of heterojunction and electron structure of graphene.After discussing the role of theorical calculation based on density function theory in the design of graphene heterojunction composite photocatalyst,the possible directions of research are briefly introduced.