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Title: Preparation of W and N, S-codoped titanium dioxide with enhanced photocatalytic activity under visible light irradiation

Abstract

Highlights: • W, N, S codoped TiO{sub 2} nanoparticles were synthesized by precipitation-impregnation method. • New linkages N–Ti–O, Ti–O–S and Ti–O–W were formed. • The activity of 0.011W, 0.030(N,S)-TiO{sub 2} is 10 times higher than that of TiO{sub 2}. • The doping enhanced visible light absorbance and accelerated the charge carrier separation. - Abstract: In this work, the preparation and physiochemical characterization of tungsten, nitrogen and sulfur codoping TiO{sub 2} photocatalysts (W, N, S-TiO{sub 2}) was undertaken. W, N, S-TiO{sub 2} nanoparticles were synthesized via the precipitation-impregnation method. To investigate the structural, optical, and electronic properties, the as-prepared W, N, S-TiO{sub 2} photocatalysts were characterized by X-ray diffraction (XRD), high-resolution transmission electron microscopy (HR-TEM), X-ray photoelectron spectroscopy (XPS), and ultraviolet-visible diffuse reflection spectrum (DRS). W, N, S-TiO{sub 2} samples showed photo-absorption in the visible light region and higher visible light photocatalytic activity than TiO{sub 2}. 0.011W, 0.030(N, S)-TiO{sub 2} exhibited the highest visible light photocatalytic activity, and the photocatalyic degradation activity of 0.011W,0.030(N,S)-TiO{sub 2} is nearly 10 times higher than that of TiO{sub 2}. Compared with the undoped TiO{sub 2}, the improved photocatalytic activity of W, N, S-TiO{sub 2} samples under visible light irradiation is attributed to the increase ofmore » the visible light absorption and the reduction in photogenerated electron-hole recombination.« less

Authors:
; ; ; ; ;
Publication Date:
OSTI Identifier:
22581488
Resource Type:
Journal Article
Journal Name:
Materials Research Bulletin
Additional Journal Information:
Journal Volume: 76; Other Information: Copyright (c) 2015 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0025-5408
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; CHARGE CARRIERS; HOLES; IRRADIATION; NANOPARTICLES; PHOTOCATALYSIS; PRECIPITATION; RECOMBINATION; SEMICONDUCTOR MATERIALS; SPECTRAL REFLECTANCE; TITANIUM OXIDES; TRANSMISSION ELECTRON MICROSCOPY; TUNGSTEN; ULTRAVIOLET RADIATION; VISIBLE RADIATION; X-RAY DIFFRACTION; X-RAY PHOTOELECTRON SPECTROSCOPY

Citation Formats

Huo, Rui, Yang, Jing-Yu, Liu, You-Qin, Liu, Hai-Feng, Li, Xin, and Xu, Yue-Hua. Preparation of W and N, S-codoped titanium dioxide with enhanced photocatalytic activity under visible light irradiation. United States: N. p., 2016. Web. doi:10.1016/J.MATERRESBULL.2015.12.010.
Huo, Rui, Yang, Jing-Yu, Liu, You-Qin, Liu, Hai-Feng, Li, Xin, & Xu, Yue-Hua. Preparation of W and N, S-codoped titanium dioxide with enhanced photocatalytic activity under visible light irradiation. United States. doi:10.1016/J.MATERRESBULL.2015.12.010.
Huo, Rui, Yang, Jing-Yu, Liu, You-Qin, Liu, Hai-Feng, Li, Xin, and Xu, Yue-Hua. Fri . "Preparation of W and N, S-codoped titanium dioxide with enhanced photocatalytic activity under visible light irradiation". United States. doi:10.1016/J.MATERRESBULL.2015.12.010.
@article{osti_22581488,
title = {Preparation of W and N, S-codoped titanium dioxide with enhanced photocatalytic activity under visible light irradiation},
author = {Huo, Rui and Yang, Jing-Yu and Liu, You-Qin and Liu, Hai-Feng and Li, Xin and Xu, Yue-Hua},
abstractNote = {Highlights: • W, N, S codoped TiO{sub 2} nanoparticles were synthesized by precipitation-impregnation method. • New linkages N–Ti–O, Ti–O–S and Ti–O–W were formed. • The activity of 0.011W, 0.030(N,S)-TiO{sub 2} is 10 times higher than that of TiO{sub 2}. • The doping enhanced visible light absorbance and accelerated the charge carrier separation. - Abstract: In this work, the preparation and physiochemical characterization of tungsten, nitrogen and sulfur codoping TiO{sub 2} photocatalysts (W, N, S-TiO{sub 2}) was undertaken. W, N, S-TiO{sub 2} nanoparticles were synthesized via the precipitation-impregnation method. To investigate the structural, optical, and electronic properties, the as-prepared W, N, S-TiO{sub 2} photocatalysts were characterized by X-ray diffraction (XRD), high-resolution transmission electron microscopy (HR-TEM), X-ray photoelectron spectroscopy (XPS), and ultraviolet-visible diffuse reflection spectrum (DRS). W, N, S-TiO{sub 2} samples showed photo-absorption in the visible light region and higher visible light photocatalytic activity than TiO{sub 2}. 0.011W, 0.030(N, S)-TiO{sub 2} exhibited the highest visible light photocatalytic activity, and the photocatalyic degradation activity of 0.011W,0.030(N,S)-TiO{sub 2} is nearly 10 times higher than that of TiO{sub 2}. Compared with the undoped TiO{sub 2}, the improved photocatalytic activity of W, N, S-TiO{sub 2} samples under visible light irradiation is attributed to the increase of the visible light absorption and the reduction in photogenerated electron-hole recombination.},
doi = {10.1016/J.MATERRESBULL.2015.12.010},
journal = {Materials Research Bulletin},
issn = {0025-5408},
number = ,
volume = 76,
place = {United States},
year = {2016},
month = {4}
}