| 钒掺杂纳米TiO_2的制备及光催化性能研究 |
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| 引用本文： | 李宗宝,王霞,舒亚非,杨卫强. 钒掺杂纳米TiO_2的制备及光催化性能研究[J]. 广州化工, 2014, 0(4): 44-45,62 |
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| 作者姓名： | 李宗宝 王霞 舒亚非 杨卫强 |
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| 作者单位： | [1]铜仁学院物理与应用工程系,贵州铜仁554300 [2]铜仁学院生物与化学工程系,贵州铜仁554300 [3]玉屏侗族自治县环境保护局,贵州铜仁554300 |
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| 基金项目： | 贵州省自然科学基金（黔科合J字LKT[2012]17号）;贵州省教育厅重点项目（黔教合KY字[2013]182）. |
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| 摘 要： | 采用溶胶-凝胶法制备了不同比例掺钒的TiO2粉体,研究了掺杂比例对粉体光催化降解甲基橙的影响,并对所制备的V-TiO2进行了XRD表征。结果表明:钒掺杂可以使TiO2粉体的光催化效率显著提高;钒的掺杂摩尔比例为n V∶n Ti=1.2∶100,煅烧温度为500℃时,粉体在250 W高压汞灯下对甲基橙的降解率大,达到94.7%。
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| 关 键 词： | 钒掺杂TiO 光催化 甲基橙 |
The Synthesis of V - doped TiO2 and the Study of Photochemical Catalysis Properties |
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| Affiliation: | LI Zong - bao, WANG Xia , SHU Ya -fei, YANG Wei - qiang (1 Department of Physics and Applied Engineering, Tongren University, Guizhou Tongren 554300; 2 Department of Biological and Chemical Engineering, Tongren University, Guizhou Tongren 554300; 3 Environmental Protection Agency of Yuping Dong Nationality Autonomous County, Guizhou Tongren 554300, China) |
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| Abstract: | Using sol - gel method, pure and V - doped TiO2 were synthesized with the different proportions. The absorption spectra and photocatalytic oxidation to methyl orange were studied. The results showed that the absorption wavelength increased due to the doped of V atom. With the proportion as nV ： nTi = 1. 2 ： 100 and calcine temperature as 500 ℃ , the degradation rate of methyl orange can get up to 94. 7 % , under 250 W high pressure mercury lamp. |
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| Keywords: | vanadium - doped TiO2 photocatalysis methylic orange |
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