| 负载缺位钨硅酸的有机无机复合光致变色薄膜 |
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| 引用本文： | 董晓雯,潘庆谊,黄焱,黄家骏,王思远. 负载缺位钨硅酸的有机无机复合光致变色薄膜[J]. 无机材料学报, 2007, 22(2): 369-372. DOI: 10.3724/SP.J.1077.2007.00369 |
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| 作者姓名： | 董晓雯 潘庆谊 黄焱 黄家骏 王思远 |
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| 作者单位： | 上海大学理学院化学系, 上海 200436 |
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| 基金项目： | 上海市纳米科技专项基金 |
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| 摘 要： | 采用sol-gel技术, 利用缺位杂多酸中氧原子不饱和性, 将Keggin结构缺位杂多酸盐SiW11以共 价键结合到SiO2 网络上, 制备了SiW11/SiO2/PVA复合薄膜. IR光谱表明, SiW11在基体中基本保持Keggin结构, 与SiO2网络上形成了W--O--Si 共价键. 由于W--O--Si键的生成, 造成Keggin结构SiW11产生一定的形变. 此薄膜在紫外光照射下变蓝, 具有较好的光致变色性质.
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| 关 键 词： | 有机无机复合 缺位杂多酸盐 光致变色 溶胶-凝胶法 |
| 文章编号： | 1000-324X（2007）02-0369-04 |
| 收稿时间： | 2006-03-22 |
| 修稿时间： | 2006-03-222006-08-07 |
Novel Organic-inorganic Photochromic Film based on Mono-vacant Keggin-type Polyoxometalates |
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| DONG Xiao-Wen,PAN Qing-Yi,HUANG Yan,HUANG Jia-Jun,WANG Si-Yuan. Novel Organic-inorganic Photochromic Film based on Mono-vacant Keggin-type Polyoxometalates[J]. Journal of Inorganic Materials, 2007, 22(2): 369-372. DOI: 10.3724/SP.J.1077.2007.00369 |
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| Authors: | DONG Xiao-Wen PAN Qing-Yi HUANG Yan HUANG Jia-Jun WANG Si-Yuan |
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| Affiliation: | College of Science, Shanghai University, Shanghai 200436, China |
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| Abstract: | A novel SiWn/SiO2/PVA hybrid film was fabricated by using a sol-gel method. Mono-vacant Keggin-type polyoxometalates [Xn W11O39](12-n)- (SiW11) were introduced into SiO2 network. The IR spectrum indicates that the covalent bond of W-O-Si is formed between SiW11 and SiO2 network, and SiWn anions still maintain Keggin structure basically in the hybrid film. However, the strong reaction between SiWn and matrix brings big shape changes on SiWn anions. The transparent film changes from colorless to dark blue under UV irradiation and shows a good photochromic behavior. |
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| Keywords: | organic-inorganic hybrid photochromic polyoxometalates sol-gel |
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