| Fe~(3+)掺杂TiO_2纳米晶溶胶的制备及性能 |
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| 引用本文： | 宗建娟,申乾宏,黄俊,方锡武,杨辉.Fe~(3+)掺杂TiO_2纳米晶溶胶的制备及性能[J].电子元件与材料,2008,27(10). |
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| 作者姓名： | 宗建娟 申乾宏 黄俊 方锡武 杨辉 |
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| 作者单位： | 1. 浙江大学,材料与化学工程学院,浙江,杭州,310027
2. 浙江顺虎德邦涂料有限公司,浙江,丽水,323000 |
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| 摘 要： | 采用sol-gel法制备了Fe3+掺杂锐钛矿型TiO2纳米晶溶胶。对溶胶的物相结构和粒度分布进行了分析,并考察了薄膜的UV-Vis吸收光谱及溶胶的光催化性能。结果表明:Fe3+掺杂可提供杂质能级抑制电子与空穴的复合,且对TiO2溶胶粒子具有细化作用,因此TiO2溶胶的光催化活性提高,比未掺杂时最大提高了近30%。但Fe3+掺杂过多可能成为电子与空穴复合的中心,导致TiO2溶胶的光催化活性降低。r(Fe:Ti)的最佳范围为0.25~0.50。
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| 关 键 词： | 无机非金属材料 TiO2纳米晶 Fe3+掺杂 sol-gel 光催化活性 |
Preparation and property of Fe~(3+)-doped TiO_2 nanocrystal sol |
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| ZONG Jian-juan,SHEN Qian-hong,HUANG Jun,FANG Xi-wu,YANG Hui.Preparation and property of Fe~(3+)-doped TiO_2 nanocrystal sol[J].Electronic Components & Materials,2008,27(10). |
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| Authors: | ZONG Jian-juan SHEN Qian-hong HUANG Jun FANG Xi-wu YANG Hui |
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| Affiliation: | ZONG Jian-juan1,SHEN Qian-hong1,HUANG Jun1,FANG Xi-wu2,YANG Hui1 (1. College of Materials Science , Chemical Engineering,Zhejiang University,Hangzhou 310027,China,2. S.H.Depon Paint Co.,Ltd,Lishui 323000,Zhejiang Province,China) |
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| Abstract: | Fe3+-doped TiO2 nanocrystal sol with anatase was prepared by a sol-gel method. Phase structure and particle size distribution of the sols were analyzed. UV-Vis absorption spectra of the films and photocatalysis properties of the sols were also investigated. The results show that Fe3+-doping can produce the impurity energy level, thus inhibit the recombination of electron and hole. And Fe3+-doping has a refining effect on TiO2 sol particles. Hence, the photocatalytic activity of TiO2 sol is increased with a ... |
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| Keywords: | sol-gel |
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