LAUSR

Two-dimensional/two-dimensional (2D/2D) hybrid nanomaterials have triggered extensive research in the photocatalytic field. The construction of emerging 2D/2D heterostructures can generate many intriguing advantages in exploring high-performance photocatalysts, mainly including preferable dimensionality design allowing large contact interface area, integrated merits of each 2D component and rapid charge separation by the heterojunction effect. Herein, we provide a comprehensive review of the recent progress on the fundamental aspects, general synthesis strategies ( in situ growth and ex situ assembly) of 2D/2D heterostructured photocatalysts and highlight their applications in the fields of hydrogen evolution, CO 2 reduction and removal of pollutants. Furthermore, the perspectives on the remaining challenges and future opportunities regarding the development of 2D/2D heterostructure photocatalysts are also presented. 近年来, 二维/二维异质结纳米材料在光催化领域引起了广泛的研究. 二维/二维异质结材料在高效光催化剂的应用研究上具有许多独特优点, 主要包括良好的尺寸设计, 较大的界面接触面积, 有机集合了各二维组分的优点, 同时异质结的构筑能够快速促进光生电荷的分离和转移. 本文首先介绍了二维/二维异质结构光催化剂所形成界面的一些基本原理内容, 并总结了目前二维/二维异质结构光催化剂的一般合成策略, 包括原位生长和非原位外组装. 随后着重介绍了二维/二维异质结光催化剂在产氢、 二氧化碳还原和污染物去除等方面的应用的最新研究进展. 最后, 对二维/二维异质结光催化剂的发展前景进行了展望.