| 铋掺杂磁性光催化剂的制备及其光催化活性 |
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| 引用本文： | 周魁,孙倩,严织,盛鑫鑫,贺艳坤.铋掺杂磁性光催化剂的制备及其光催化活性[J].武汉工业学院学报,2011,30(4):28-31. |
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| 作者姓名： | 周魁 孙倩 严织 盛鑫鑫 贺艳坤 |
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| 作者单位： | 武汉工业学院化学与环境工程学院,湖北武汉,430023 |
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| 基金项目： | 湖北省自然科学基金，武汉工业学院研究生教育创新基金 |
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| 摘 要： | 以Fe3O4/SiO2复合微球为基体,采用溶胶—凝胶法制备了Bi掺杂的磁性TiO2复合光催化剂,并用SEM、FT—IR和VSM等测试手段对催化剂进行了表征。以活性艳红K-2BP为目标降解物评价其光催化活性。结果表明,制备的复合光催化剂易于磁性固液分离,K-2BP溶液初始浓度为20 mg/L,pH值为2,光催化剂的添加量为0.5 g/L,Bi摩尔分数为0.6%的光催化剂时的催化活性最高,光催化反应5 h后K-2BP的降解率达到88.38%。
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| 关 键 词： | 磁性材料 光催化剂 TiO2 活性染料 |
Preparation and photocatalytic activity of Bi- doped magnetic TiO2 photocatalysts |
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| ZHOU Kui,SUN Qian,YAN Zhi,SHENG Xin-xin,HE Yan-kun.Preparation and photocatalytic activity of Bi- doped magnetic TiO2 photocatalysts[J].Journal of Wuhan Polytechnic University,2011,30(4):28-31. |
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| Authors: | ZHOU Kui SUN Qian YAN Zhi SHENG Xin-xin HE Yan-kun |
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| Affiliation: | ZHOU Kui,SUN Qian,YAN Zhi,SHENG Xin-xin,HE Yan-kun(School of Chemical and Environmental Engineering,Wuhan Polytechnic University,Wuhan 430023,China) |
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| Abstract: | The magnetic TiO2 photocatalyst doped with Bi were prepared by sol-gel process using Fe3O4/SiO2 composite microspheres as supporter.The photocatalyst samples were characterized by SEM,FT-IR and VSM respectively.The photocatalytic activity of the catalyst was evaluated by degradation of reactive brilliant red K-2BP.The results showed that the composite photocatalyst could be separated from the solution easily.The decolorizing rate reached the maximum of 88.38% by illumination after 5 h when the original conc... |
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| Keywords: | magnetite photocatalyst TiO2 reactive dye |
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