Preparation of Nb2O5 and N co-doped TiO2 photocatalysts and their enhanced photocatalytic activities under visible light

被引：0
作者：
Yanfang Shen
Tianying Xiong
Jianku Shang
Ke Yang
机构：
[1] Chinese Academy of Sciences,Institute of Metal Research
[2] Graduate School of Chinese Academy of Sciences,Department of Materials Science and Engineering
[3] University of Illinois at Urbana-Champaign,undefined
来源：
Research on Chemical Intermediates | 2008年 / 34卷
关键词：
Photocatalysis; niobium pentaoxide; nitrogen; co-doped; chemical oxygen demand;
D O I：
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中图分类号：
学科分类号：
摘要：
Niobium pentaoxide (Nb2O5) and nitrogen co-doped TiO2 photocatalysts were prepared by mechanical alloying with Nb2O5, TiO2 and urea as raw materials. The pure TiO2 powders of Degussa P25 were chosen as precursor. Chemical and physical properties of the Nb2O5 and N co-doped TiO2 photocatalysts were investigated, including XRD patterns, XPS spectra, DRS spectra, FT-IR spectra and N2 adsorption-desorption isotherms. Experiments on photodegradation of methylene blue (MB) and sulfosalicylic acid (SSA) under visible light were carried out to evaluate the photoactivities of the prepared samples, and the chemical oxygen demand (COD) analysis was also conducted as a comparison.
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页码：353 / 363
页数：10
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