| 铂铬共掺杂纳米TiO2薄膜的制备及其光催化性能 |
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| 引用本文： | 黄佳木,朱小红,蔡小平. 铂铬共掺杂纳米TiO2薄膜的制备及其光催化性能[J]. 重庆大学学报(自然科学版), 2008, 31(9) |
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| 作者姓名： | 黄佳木 朱小红 蔡小平 |
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| 作者单位： | 重庆大学,材料科学与工程学院,重庆,400030;重庆大学,材料科学与工程学院,重庆,400030;重庆大学,材料科学与工程学院,重庆,400030 |
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| 摘 要： | 采用溶胶-凝胶法制备了铂铬共掺杂纳米TiO2薄膜,并用AFM、XRD、UV-Vis等对薄膜进行了表征.实验结果表明,铂铬共掺杂TiO2薄膜粒径约为32 nm;厚度为290 nm左右时,薄膜对亚甲基蓝的降解率在2.5 h达到95%左右;共掺体系的最佳掺杂量为n(Cr)∶n(TiO2)=0.4%, n(Pt)∶n(TiO2)=0.03%, 此时TiO2薄膜对亚甲基蓝有良好的降解效果,优于同等条件下制备的纯TiO2薄膜和铂、铬单掺杂TiO2薄膜.
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| 关 键 词： | 光催化 铂铬共掺杂 二氧化钛 亚甲基蓝 |
Preparation and photocatalytic properties of Pt and Cr co-doped Nano-TiO2 films |
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| HUANG Jia-mu,ZHU Xiao-hong,CAI Xiao-ping. Preparation and photocatalytic properties of Pt and Cr co-doped Nano-TiO2 films[J]. Journal of Chongqing University(Natural Science Edition), 2008, 31(9) |
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| Authors: | HUANG Jia-mu ZHU Xiao-hong CAI Xiao-ping |
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| Abstract: | Pt and Cr co-doped Nano-TiO2 film was prepared by the sol-gel method.The film was characterized by AFM,XRD and UV-Vis.The experiment showed that when the average TiO2 film diameter is 32 nm and the film thickness is 290 nm,the rate of photodegradation is 95% in 2.5 hours.Additionally,when the optimal co-doping ratio for Pt-Cr is n(Pt): n(TiO2) equals 0.03% and n(Cr):n(TiO2) equals 0.4%,the photodegradation of methylene blue for Nano-TiO2 film can be enhanced.The photocatalytic properties of Pt and Cr co-doped Nano-TiO2 film is better than that of pure TiO2 and Pt,Cr separately-doped TiO2 film. |
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| Keywords: | photocatalysis Pt and Cr co-doping Titanium dioxide methylene blue |
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