| 碳掺杂TiO_2可见光光催化剂的制备及可见光光催化性能 |
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| 引用本文： | 曹广秀,曹广连,陈淑敏,李素芝.碳掺杂TiO_2可见光光催化剂的制备及可见光光催化性能[J].商丘师范学院学报,2012,28(9):63-67. |
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| 作者姓名： | 曹广秀 曹广连 陈淑敏 李素芝 |
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| 作者单位： | 1. 商丘师范学院化学化工学院,河南商丘,476000
2. 上海现代哈森（商丘）药业有限公司,河南商丘,476000 |
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| 基金项目： | 河南省基础与前沿技术研究计划项目(112300410308) |
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| 摘 要： | 以乙二胺和钛酸四丁酯作为原料,采用改进的溶胶-凝胶法合成了碳掺杂TiO2可见光响应的光催化材料.以XRD、TEM、XPS、UV-vis等手段对样品进行了表征.结果表明：碳掺杂可以阻止样品由锐钛矿相向金红石相的转变,同时还可以抑制晶粒的生长.碳取代晶格中氧原子形成Ti—C键和O—Ti—C键,它能改变TiO2的能带结构,诱导可见光响应,还可提供新的活性点;碳掺杂400℃煅烧的样品具有较强的可见光响应.可见光下降解亚甲基蓝（MB）的结果表明：乙二胺加入1 mL,煅烧温度400℃时的样品具有最高的可见光光催化活性.
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| 关 键 词： | 掺杂 可见光 二氧化钛 光催化 |
Preparation of carbon doping TiO2 and its visible light photocatalytic performance |
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| CAO Guangxiu,CAO Guanglian,CHEN Shumin,LI Suzhi.Preparation of carbon doping TiO2 and its visible light photocatalytic performance[J].Journal of Shangqiu Teachers College,2012,28(9):63-67. |
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| Authors: | CAO Guangxiu CAO Guanglian CHEN Shumin LI Suzhi |
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| Institution: | 1(1.College of Chemistry and Chemical Engineering,Shangqiu Normal University,Shangqiu 476000,China; 2.Shanghai Modern Hasen(Shangqiu) Pharmaceutical Co.,Ltd.,Shangqiu 476000,China) |
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| Abstract: | Carbon doped TiO2 photocatalysts were synthesized by a simple sol-gel process using tetrabutyl titanate(TBT) and ethylenediamine as precursors and characterized by XRD,TEM,UV-vis and XPS methods.Results showed that carbon doping could not only efficiently inhibit the grain growth but also suppress the phase transition of anatase to rutile.XPS results presented that the Ti—C and O—Ti—C bonds have been formed,which can extend the optical absorption into visible light region and induce new active sites.When the volume of ethylenediamine is 1 mL and calcined at 400℃,the degradation rate of MB over the sample was the highest than other samples. |
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| Keywords: | doping visible light TiO2 photocatalysis |
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