Tuning the size of photo-deposited metal nanoparticles via manipulating surface defect structures of TiO2 nanocrystals

Xian Zhou; Kun Qian; Yunshang Zhang; Dan Li; Zeyue Wei; Huijuan Wang; Run Ye; Jiandang Liu; Bangjiao Ye; Weixin Huang

doi:10.1039/c9cc09642f

Tuning the size of photo-deposited metal nanoparticles via manipulating surface defect structures of TiO₂ nanocrystals

Chem Commun (Camb). 2020 Feb 13;56(13):1964-1967. doi: 10.1039/c9cc09642f.

Authors

Xian Zhou¹, Kun Qian, Yunshang Zhang, Dan Li, Zeyue Wei, Huijuan Wang, Run Ye, Jiandang Liu, Bangjiao Ye, Weixin Huang

Affiliation

¹ Hefei National Laboratory for Physical Sciences at the Microscale, Key Laboratory of Surface and Interface Chemistry and Energy Catalysis of Anhui Higher Education Institutes, CAS Key Laboratory of Materials for Energy Conversion, and Department of Chemical Physics, University of Science and Technology of China, Jinzhai Road 96, Hefei 230026, China. qiankun@ustc.edu.cn huangwx@ustc.edu.cn.

PMID: 31957770
DOI: 10.1039/c9cc09642f

Abstract

Here we report a new method for controlling photo-deposited metal nanoparticle size by manipulating surface defect structures of TiO2 nanocrystals. Our results demonstrate that the isolated oxygen vacancy could serve as an electron trapper while the oxygen vacancy cluster could act as an electron-hole recombination site in the photo-deposition process.