Facile synthesis and photocatalytic disinfection of boron self-doped TiO2 nanosheets

Authors

Bin Wang, City University of Hong Kong
Xiaoying, Helen Lu, Technological and Higher Education Institute of Hong Kong, Vocational Training CouncilFollow
Jin Xuan, City University of Hong Kong
Michael K.H. Leung, City University of Hong Kong

Staff Page Link

Dr LU Xiaoying, Helen

Document Type

Journal Article

Publication Date

2014

Keywords

TiO2 nanosheets, Nanocrystalline materials, Electron microscopy, XPS, Photocatalysis

DOI

10.1016/j.matlet.2013.09.125

Abstract

In this study, a facile hydrothermal method was successfully developed to synthesize boron self-doped TiO2 nanosheets directly from TiB2 powders. XRD and TEM results suggested that the as-prepared TiO2 were pure anatase phase and showed a sheet morphology with reactive (001) facets. XPS analysis revealed the presence of boron as dopants by substituting oxygen atom in TiO2 nanosheets. The effect of HBF4 on TiO2 synthesis was also investigated. Photocatalytic disinfection experimental study implied that boron self-doped TiO2 exhibited better performance than P25 under visible light irradiation. The enhanced photocatalytic effect was ascribed to the nanosheet morphology with reactive (001) facets and self-doping of boron in TiO2.

Source Publication

Materials Letters

Volume Number

115

Issue Number

15

First Page

57

Last Page

59

Recommended Citation

Wang, B.,Lu, X.,Xuan, J.,& Leung, M. (2014). Facile synthesis and photocatalytic disinfection of boron self-doped TiO2 nanosheets. Materials Letters, 115 (15), 57-59. http://dx.doi.org/10.1016/j.matlet.2013.09.125