标题:Synergistic effect of N- and F-codoping on the structure and photocatalytic performance of TiO2
作者:Yu, Jiemei; Liu, Zongming; Zhang, Haitao; Huang, Taizhong; Han, Jitian; Zhang, Yihe; Chong, Daohuang
作者机构:[Yu, J] School of Energy and Power Engineering, Shandong University, Jinan, 250061, China, School of Chemistry and Chemical Engineering, University of 更多
通讯作者地址:[Huang, TZ]Univ Jinan, Sch Chem & Chem Engn, Jinan 250022, Peoples R China.
来源:环境科学学报(英文版)
出版年:2015
卷:28
页码:148-156
DOI:10.1016/j.jes.2014.06.046
关键词:TiO2 hydrolysis;Anion doping;Photocatalyst;Nanoparticle
摘要:Three types of TiO2 nanostructures were synthesized via a facile hydrolysis method at 195 degrees C. Effects of the preparation method and doping with N and F on the crystal structure and photocatalytic performance of TiO2 were investigated. The nanomaterials were characterized by X-ray diffraction, transmission electron microscopy, X-ray photoelectron spectroscopy, Brunauer-Emmett-Teller porosimetry, ultraviolet visible diffuse reflectance spectroscopy and fluorescent emission spectra. Their photo-catalytic activity was examined by the photodegradation of methylene blue in aqueous solution under both ultra-violet and visible light irradiation. The results show that nitrogen and fluorine co-doped anatase TiO2 had the characteristics of a smaller crystalline size, broader light absorption spectrum and lower charge recombination than pure TiO2. Most importantly, more efficient photocatalytic activity under both ultra-violet and visible light was observed. The obtained N-F-TiO2 nanomaterial shows considerable potential for water treatment under sunlight irradiation. (C) 2014 The Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences. Published by Elsevier B.V.
收录类别:CSCD;SCOPUS;SCIE
WOS核心被引频次:5
Scopus被引频次:6
资源类型:期刊论文
原文链接:https://www.scopus.com/inward/record.uri?eid=2-s2.0-84924901518&doi=10.1016%2fj.jes.2014.06.046&partnerID=40&md5=2be6c08acddfc0c2445b5812304dbc61
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