| A visible light-responsive iodine-doped titanium dioxide nanosphere. | |
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MedLine Citation:
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PMID: 21476357 Owner: NLM Status: In-Process |
Abstract/OtherAbstract:
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I-doped titanium dioxide nanospheres (I-TNSs) were synthesized via a two-step hydrothermal synthesis route, their potential for the efficient utilization of visible light was evaluated. The prepared anatase-phase I-TNSs had a bimodal porous size distribution with a Brunauer-Emmett-Teller surface area of 76 m2/g, a crystallite size of approximately 14 nm calculated from X-ray diffraction data, and a remarkable absorption in the visible light region at wavelengths > 400 nm. The photocatalytic activity of the samples was evaluated by decoloration of Methyl Orange in aqueous solution under visible light irradiation in comparison to the iodine-doped TiO2 (I-TiO2). The I-TNSs showed higher photocatalytic efficiency compared with I-TiO2 after irradiation for 180 min even though the latter had a much greater surface area (115 m2/g). It was concluded that the surface area was not the predominant factor determining photocatalytic activity, and that the good crystallization and bimodal porous nanosphere structure were favourable for photocatalysis. |
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Authors:
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Zhiqiao He; Liyong Zhan; Fangyue Hong; Shuang Song; Zhengying Lin; Jianmeng Chen; Mantong Jin |
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Publication Detail:
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Type: Journal Article; Research Support, Non-U.S. Gov't |
Journal Detail:
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Title: Journal of environmental sciences (China) Volume: 23 ISSN: 1001-0742 ISO Abbreviation: J Environ Sci (China) Publication Date: 2011 |
Date Detail:
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Created Date: 2011-04-11 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 100967627 Medline TA: J Environ Sci (China) Country: Netherlands |
Other Details:
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Languages: eng Pagination: 166-70 Citation Subset: IM |
Affiliation:
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College of Biological and Environmental Engineering, Zhejiang University of Technology, Hangzhou 310032, China. zqhe@jzut.edu.cn |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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