A visible light-responsive iodine-doped titanium dioxide nanosphere
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 are...
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Veröffentlicht in: | Journal of environmental sciences (China) 2011, Vol.23 (1), p.166-170 |
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creator | He, Zhiqiao Zhan, Liyong Hong, Fangyue Song, Shuang Lin, Zhengying Chen, Jianmeng Jin, Mantong |
description | 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 rain 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. |
doi_str_mv | 10.1016/S1001-0742(10)60389-0 |
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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 rain 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.</description><identifier>ISSN: 1001-0742</identifier><identifier>EISSN: 1878-7320</identifier><identifier>DOI: 10.1016/S1001-0742(10)60389-0</identifier><identifier>PMID: 21476357</identifier><language>eng</language><publisher>Netherlands: Elsevier B.V</publisher><subject>absorption ; aqueous solutions ; Azo Compounds - chemistry ; Catalysis - radiation effects ; Color ; Computing time ; Crystallites ; crystallization ; Decoloring ; decolorization ; I-doped titanium dioxide ; Iodine - chemistry ; irradiation ; Light ; Methyl Orange ; Nanocomposites ; Nanomaterials ; nanospheres ; Nanospheres - chemistry ; Nanospheres - ultrastructure ; Nanostructure ; Photocatalysis ; photocatalyst ; Surface area ; Titanium - chemistry ; Titanium dioxide ; visible light ; wavelengths ; X-Ray Diffraction ; X射线衍射 ; 二氧化钛 ; 光催化活性 ; 可见光响应 ; 可见光照射 ; 水热合成法 ; 碘掺杂 ; 纳米球</subject><ispartof>Journal of environmental sciences (China), 2011, Vol.23 (1), p.166-170</ispartof><rights>2011 The Research Centre for Eco-Environmental Sciences, Chinese Academy of Sciences</rights><rights>Copyright © Wanfang Data Co. 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All Rights Reserved.</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c511t-e161207424dc63af37389771d7e9906c2edd3a275d4a1aae8e5d7a2f0c93d03e3</citedby><cites>FETCH-LOGICAL-c511t-e161207424dc63af37389771d7e9906c2edd3a275d4a1aae8e5d7a2f0c93d03e3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Uhttp://image.cqvip.com/vip1000/qk/85265X/85265X.jpg</thumbnail><linktohtml>$$Uhttps://dx.doi.org/10.1016/S1001-0742(10)60389-0$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,780,784,3550,4024,27923,27924,27925,45995</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/21476357$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>He, Zhiqiao</creatorcontrib><creatorcontrib>Zhan, Liyong</creatorcontrib><creatorcontrib>Hong, Fangyue</creatorcontrib><creatorcontrib>Song, Shuang</creatorcontrib><creatorcontrib>Lin, Zhengying</creatorcontrib><creatorcontrib>Chen, Jianmeng</creatorcontrib><creatorcontrib>Jin, Mantong</creatorcontrib><title>A visible light-responsive iodine-doped titanium dioxide nanosphere</title><title>Journal of environmental sciences (China)</title><addtitle>Journal of Environmental Sciences</addtitle><description>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 rain 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.</description><subject>absorption</subject><subject>aqueous solutions</subject><subject>Azo Compounds - chemistry</subject><subject>Catalysis - radiation effects</subject><subject>Color</subject><subject>Computing time</subject><subject>Crystallites</subject><subject>crystallization</subject><subject>Decoloring</subject><subject>decolorization</subject><subject>I-doped titanium dioxide</subject><subject>Iodine - chemistry</subject><subject>irradiation</subject><subject>Light</subject><subject>Methyl Orange</subject><subject>Nanocomposites</subject><subject>Nanomaterials</subject><subject>nanospheres</subject><subject>Nanospheres - chemistry</subject><subject>Nanospheres - ultrastructure</subject><subject>Nanostructure</subject><subject>Photocatalysis</subject><subject>photocatalyst</subject><subject>Surface area</subject><subject>Titanium - chemistry</subject><subject>Titanium dioxide</subject><subject>visible light</subject><subject>wavelengths</subject><subject>X-Ray Diffraction</subject><subject>X射线衍射</subject><subject>二氧化钛</subject><subject>光催化活性</subject><subject>可见光响应</subject><subject>可见光照射</subject><subject>水热合成法</subject><subject>碘掺杂</subject><subject>纳米球</subject><issn>1001-0742</issn><issn>1878-7320</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2011</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNqFkU9v1DAQxSMEoqXwEYCoByiHwIwdx8kJVSv-SZU4lJ4tbzzZ9ZK1UztZ4NvjNFuO9OSR9ZuZN-9l2UuE9whYfbhGACxAluwC4V0FvG4KeJSdYi3rQnIGj1N9j5xkz2LcAUApQDzNThiWsuJCnmary_xgo133lPd2sx2LQHHwLtoD5dYb66gwfiCTj3bUzk773Fj_2xrKnXY-DlsK9Dx70uk-0ovje5bdfP70Y_W1uPr-5dvq8qpoBeJYEFbIZjWlaSuuOy6TZinRSGoaqFpGxnDNpDClRq2pJmGkZh20DTfAiZ9lb5a5v7TrtNuonZ-CSxvVjqIiBpicAVYm8O0CDsHfThRHtbexpb7XjvwUVV2haLCu2cOkEBJlmprIi_-SKNMpokY-o2JB2-BjDNSpIdi9Dn8UgprDU3fhqdmL-esuPDX3vTqumNZ7Mv-67tNKwOsF6LRXehNsVDfX6WwBwFA2dZWIjwtBKYeDpaBia8m1ZGygdlTG2wdFnB_Fb73b3Npk81q3Pzvbk-KVAFZJzv8CUDK7Yg</recordid><startdate>2011</startdate><enddate>2011</enddate><creator>He, Zhiqiao</creator><creator>Zhan, Liyong</creator><creator>Hong, Fangyue</creator><creator>Song, Shuang</creator><creator>Lin, Zhengying</creator><creator>Chen, Jianmeng</creator><creator>Jin, Mantong</creator><general>Elsevier B.V</general><general>College of Biological and Environmental Engineering, Zhejiang University of Technology, Hangzhou 310032, China%Department of Chemical Engineering, Hangzhou Vocational & Technical College, Hangzhou 310018, China</general><scope>2RA</scope><scope>92L</scope><scope>CQIGP</scope><scope>W92</scope><scope>~WA</scope><scope>FBQ</scope><scope>CGR</scope><scope>CUY</scope><scope>CVF</scope><scope>ECM</scope><scope>EIF</scope><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7SU</scope><scope>8FD</scope><scope>C1K</scope><scope>FR3</scope><scope>KR7</scope><scope>7ST</scope><scope>SOI</scope><scope>7X8</scope><scope>2B.</scope><scope>4A8</scope><scope>92I</scope><scope>93N</scope><scope>PSX</scope><scope>TCJ</scope></search><sort><creationdate>2011</creationdate><title>A visible light-responsive iodine-doped titanium dioxide nanosphere</title><author>He, Zhiqiao ; 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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 rain 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.</abstract><cop>Netherlands</cop><pub>Elsevier B.V</pub><pmid>21476357</pmid><doi>10.1016/S1001-0742(10)60389-0</doi><tpages>5</tpages></addata></record> |
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subjects | absorption aqueous solutions Azo Compounds - chemistry Catalysis - radiation effects Color Computing time Crystallites crystallization Decoloring decolorization I-doped titanium dioxide Iodine - chemistry irradiation Light Methyl Orange Nanocomposites Nanomaterials nanospheres Nanospheres - chemistry Nanospheres - ultrastructure Nanostructure Photocatalysis photocatalyst Surface area Titanium - chemistry Titanium dioxide visible light wavelengths X-Ray Diffraction X射线衍射 二氧化钛 光催化活性 可见光响应 可见光照射 水热合成法 碘掺杂 纳米球 |
title | A visible light-responsive iodine-doped titanium dioxide nanosphere |
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