Enhanced Photocatalytic Activities of Ta&lt;sub&gt;2&lt;/sub&gt;O&lt;sub&gt;5&lt;/sub&gt; and Nitrogen Co-Doped TiO&lt;sub&gt;2&lt;/sub&gt; under Visible Light Irradiation

Yan Shen; Tian Ying Xiong; Ke Yang

doi:10.4028/www.scientific.net/msf.544-545.59

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JOURNAL ARTICLE

Enhanced Photocatalytic Activities of Ta2O5 and Nitrogen Co-Doped TiO2 under Visible Light Irradiation

Yan Shen Tian Ying Xiong Ke Yang

Year: 2007 Journal: Materials science forum Vol: 544-545 Pages: 59-62 Publisher: Trans Tech Publications

DOI: 10.4028/www.scientific.net/msf.544-545.59

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Abstract

Tantalum dioxide and nitrogen co-doped titanium dioxide nanopowders, denoted as (Ta2O5, N) co-doped TiO2, were fabricated by a high-energy ball miller using TiO2, Ta2O5 and urea as raw materials. Experiments on the photocatalytic activities of the (Ta2O5, N) co-doped TiO2 were carried out in the form of photodegradation of methylene blue (MB) in aqueous solution under visible light irradiation. Enhanced photocatalytic activities were observed for the (Ta2O5, N) co-doped TiO2 than commercial Degussa P25. Besides, physical, chemical and optical properties, including XRD, DRS, and XPS were detected to analyze the origins for the enhanced photocatalytic activities of the prepared samples.

Keywords:

Photocatalysis Materials science Titanium dioxide Photodegradation X-ray photoelectron spectroscopy Aqueous solution Doping Nuclear chemistry Urea Nitrogen Methylene blue Inorganic chemistry Catalysis Chemical engineering Chemistry Metallurgy Organic chemistry

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TiO2 Photocatalysis and Solar Cells

Physical Sciences → Energy → Renewable Energy, Sustainability and the Environment

Enhanced Photocatalytic Activities of Ta<sub>2</sub>O<sub>5</sub> and Nitrogen Co-Doped TiO<sub>2</sub> under Visible Light Irradiation

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