| 二氧化钛微晶结构和光催化性能关联性研究 |
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| 引用本文： | 岳林海,水淼,徐铸德.二氧化钛微晶结构和光催化性能关联性研究[J].化学学报,1999,57(11):1219-1225. |
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| 作者姓名： | 岳林海 水淼 徐铸德 |
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| 作者单位： | 浙江大学化学系.杭州(310027) |
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| 摘 要： | 研究了不同煅烧温度、煅烧时间的系列二氧化钛样品悬浮体系光催化降解X-3B活性艳红的催化活性。分析了晶粒尺寸、晶相、晶格畸变应力和光催化体系等诸多因素对二氧化钛光催化活性的影响。发现晶格畸变应力对空穴电子对复合速率的影响在诸因素中占主导地位,并在一定程度上决定了二氧化钛悬浮体系的光催化效能。
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| 关 键 词： | 二氧化钛 晶体结构 光催化 畸变 晶格场 |
| 修稿时间： | 1998年12月11日 |
A study on correlation of crystal distortion with photocatalytic activity of titanium dioxide |
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| YUE Lin-hai,Shui Miao,XU Zhu-de.A study on correlation of crystal distortion with photocatalytic activity of titanium dioxide[J].Acta Chimica Sinica,1999,57(11):1219-1225. |
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| Authors: | YUE Lin-hai Shui Miao XU Zhu-de |
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| Institution: | Zhejiang Univ, Dept Chem.Hangzhou(310027) |
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| Abstract: | The photocatalytic activity of a series of titanium dioxides in the oxidation of X- 3B pigment is investigated. The factors including crystallite size, lattice distortion and anatase content that influence the photocatalytic activity of titanium dioxide dispersion are discussed in detail. We propose that lattice distortion that inhibits the hole and electron pair recombination dominates the above factors and to some extent determines the photocatalytic efficiency of titanium dioxide dispersions. |
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| Keywords: | titanium dioxide crystal structure lattice distortion photocatalytic activity |
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