| S掺杂形式对TiO2基光催化剂结构和性能的影响 |
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| 引用本文： | 王玉萍,曹金丽,彭盘英.S掺杂形式对TiO2基光催化剂结构和性能的影响[J].无机化学学报,2009,25(11):2010-2015. |
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| 作者姓名： | 王玉萍 曹金丽 彭盘英 |
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| 作者单位： | 南京师范大学化学与环境科学学院,南京,210097 |
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| 基金项目： | 江苏省自然科学基金项目，南京师范大学"211工程"三期重点学科建设项目 |
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| 摘 要： | 采用改进的Sol-gel法制备了S-TiO2和TiO2，用1 mol·L-1的H2SO4对TiO2进行表面修饰制成的SO42-/TiO2。采用XRD、IR、UV-Vis、SEM和EDS等技术对催化剂的结构进行了表征，以L酸(1-萘酚-5-磺酸)为目标物，考察了所制备的催化剂的性能．结果表明：S-TiO2的禁带宽度明显降低，并且对400~650 nm区域的可见光都有一定的吸收，其可见光活性和紫外光活性均高于SO42-/TiO2和纯TiO2。
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| 关 键 词： | 硫掺杂 SO42-表面修饰 光催化活性 |
The Effect of S-Doping Methods on Structure and Activity of TiO2 Based Photocatalysts |
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| WANG Yu-Ping,CAO Jin-Li and PENG Pan-Ying.The Effect of S-Doping Methods on Structure and Activity of TiO2 Based Photocatalysts[J].Chinese Journal of Inorganic Chemistry,2009,25(11):2010-2015. |
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| Authors: | WANG Yu-Ping CAO Jin-Li and PENG Pan-Ying |
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| Institution: | School of Chemistry and Environmental Science, Nanjing Normal University, Nanjing 210097,School of Chemistry and Environmental Science, Nanjing Normal University, Nanjing 210097 and School of Chemistry and Environmental Science, Nanjing Normal University, Nanjing 210097 |
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| Abstract: | The S-TiO_2 and TiO_2 were prepared by the improved sol-gel method, the SO_4~(2-)TiO_2 was prepared by SEM, EDS and the photocatalytic activities were evaluated by photodegradation of L-acid(1-naphthol-5-sulfonic acid) under ultraviolet and visible light radiation. The results showed that the band gap of S-TiO_2 was reduced obviously, the visible light absorption was extended to 400～650 nm, and the photocatalytic activities were higher than both SO_4~(2-)/TiO_2 and pure TiO_2 under either ultraviolet radiation or visible light radiation. |
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| Keywords: | S-doping SO42- surface modification photocatalytic activity |
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