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

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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.

Affiliations: 1: Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, China, Graduate School of Chinese Academy of Sciences, Beijing 100086, China; 2: Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, China;, Email: tyxiong@imr.ac.cn; 3: Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, China, Department of Materials Science and Engineering, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA; 4: Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, China

10.1163/156856708784040650
/content/journals/10.1163/156856708784040650
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/content/journals/10.1163/156856708784040650
2008-04-01
2016-12-10

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