Direct synthesis of defective ultrathin brookite-phase TiO2 nanosheets showing flexible electronic band states

Weixin Zhao; Shenqian Ma; Jun Zhou; Guolei Xiang

doi:10.1039/d0cc07214a

Direct synthesis of defective ultrathin brookite-phase TiO₂ nanosheets showing flexible electronic band states

Chem Commun (Camb). 2021 Jan 14;57(4):500-503. doi: 10.1039/d0cc07214a. Epub 2020 Dec 17.

Authors

Weixin Zhao¹, Shenqian Ma, Jun Zhou, Guolei Xiang

Affiliation

¹ State Key Laboratory of Chemical Resource Engineering, College of Chemistry, Beijing University of Chemical Technology, Beijing 100029, China. xianggl@mail.buct.edu.cn.

PMID: 33331370
DOI: 10.1039/d0cc07214a

Abstract

We report a one-pot protocol to prepare ultrathin nanosheets of brookite-phase TiO₂ through hydrolyzing TiCl₃ in formamide. This 2D titania is defective and shows flexible electronic states and enhanced surface reactivity, which is probed by H₂O₂ adsorption, catalytic TMB oxidation, and X-ray absorption fine structure. The nanosheets provide a new 2D platform to exploit the applications of TiO₂ in catalysis, energy conversion and storage.