Engineering the Band Gap States of the Rutile TiO2(110) Surface by Modulating the Active Heteroatom

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review

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Author(s)

  • Yaoguang Yu
  • Xu Yang
  • Yanling Zhao
  • Xiangbin Zhang
  • Liang An
  • Gang Chen

Detail(s)

Original languageEnglish
Pages (from-to)8550-8554
Number of pages6
Journal / PublicationAngewandte Chemie - International Edition
Volume57
Issue number28
Online published19 Apr 2018
Publication statusPublished - 9 Jul 2018

Abstract

Introducing band gap states to TiO2 photocatalysts is an efficient strategy for expanding the range of accessible energy available in the solar spectrum. However, few approaches are able to introduce band gap states and improve photocatalytic performance simultaneously. Introducing band gap states by creating surface disorder can incapacitate reactivity where unambiguous adsorption sites are a prerequisite. An alternative method for introduction of band gap states is demonstrated in which selected heteroatoms are implanted at preferred surface sites. Theoretical prediction and experimental verification reveal that the implanted heteroatoms not only introduce band gap states without creating surface disorder, but also function as active sites for the CrVI reduction reaction. This promising approach may be applicable to the surfaces of other solar harvesting materials where engineered band gap states could be used to tune photophysical and ‐catalytic properties.

Research Area(s)

  • band gap states, CrVI reduction, density functional theory, rutile TiO2, substitutional N doping

Citation Format(s)

Engineering the Band Gap States of the Rutile TiO2(110) Surface by Modulating the Active Heteroatom. / Yu, Yaoguang; Yang, Xu; Zhao, Yanling; Zhang, Xiangbin; An, Liang; Huang, Miaoyan; Chen, Gang; Zhang, Ruiqin.

In: Angewandte Chemie - International Edition, Vol. 57, No. 28, 09.07.2018, p. 8550-8554.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review