文献类型：期刊文献

英文题名：Interface-confined intermediate phase in TiO2 enables efficient photocatalysis

作者：Huang, Qiu-Shi[1];Zhang, Yang[2];Liu, Peng Fei[2];Yang, Hua Gui[2];Zhang, Xie[3];Wei, Su-Huai[1]

机构：[1]Beijing Computat Sci Res Ctr, Beijing 100193, Peoples R China;[2]East China Univ Sci & Technol, Sch Mat Sci & Engn, Key Lab Ultrafine Mat, Minist Educ, Shanghai 200237, Peoples R China;[3]Northwestern Polytech Univ, Sch Mat Sci & Engn, Xian 710072, Peoples R China

年份：2024

卷号：121

期号：6

外文期刊名：PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA

收录：;WOS:【SCI-EXPANDED(收录号:WOS:001169153000002)】；

基金：ACKNOWLEDGMENTS. This work was supported by the National Natural Science Foundation of China (Grant No. 12088101, No. 11991060, No. 52172136, No. U2230402) . We acknowledge computational resources from the Beijing Computational Science Research Center.

语种：英文

外文关键词：transition | interface; interface reconstruction; band alignment; photocatalysis

摘要：As a prototypical photocatalyst, TiO2 has been extensively studied. An interesting yet enhances the overpotential of the hydrogen evolution reaction. Also, the corresponding band alignment at the interface leads to efficient separation of electrons and holes. The interfacial confinement additionally creates a wide distribution of the band gap in the vicinity of the interface, which in turn improves optical absorption. These factors all contribute to the enhanced photocatalytic efficiency in P25. Our insights provide a rationale to the puzzling superior photocatalytic performance of P25 and enable a strategy to achieve highly efficient photocatalysis via interface engineering.