Preparation of photochromic sol-gel composite films containing dodecaphosphotungstic acid | |
Zhang, TR; Feng, W; Lu, R; Bao, CY; Li, TJ; Zhao, YY; Yao, JN | |
刊名 | MATERIALS CHEMISTRY AND PHYSICS |
2003-02-17 | |
卷号 | 78期号:2页码:380-384 |
关键词 | 12-phosphotungstic Acid Composite Films Sol-gel Technique Photochromic Charge Transfer |
ISSN号 | 0254-0584 |
英文摘要 | A novel photochromic gel film was prepared through entrapping 12-phosphotungstic acid (PWA) into a kind of inorganic-organic matrix co-hydrolyzed from tetraethylorthosilicate (TEOS) and 3-aminopropyltriethoxysilane (APTES). Infrared (IR) spectra revealed that the Keggin structure characteristic of PW12O403- anions was present in the amine-functionalized silica gel skeleton and PWA interacted with R-NH3+ cations strongly. The amorphous state of the gel film was proved by X-ray diffraction (XRD) pattern. The gel film exhibited reversible photochromicity. Irradiated with ultraviolet light, the transparent film changes from colorless to blue. Then, bleaching occurs when the film is in contact with air or O-2 in the dark. (C) 2002 Elsevier Science B.V. All rights reserved. |
语种 | 英语 |
出版者 | ELSEVIER SCIENCE SA |
WOS记录号 | WOS:000179569300014 |
内容类型 | 期刊论文 |
源URL | [http://ir.iccas.ac.cn/handle/121111/79953] |
专题 | 中国科学院化学研究所 |
通讯作者 | Lu, R |
作者单位 | 1.Jilin Univ, Dept Chem, Changchun 130023, Peoples R China 2.Chinese Acad Sci, Inst Chem, Beijing 100080, Peoples R China 3.Chinese Acad Sci, Ctr Mol Sci, Beijing 100080, Peoples R China |
推荐引用方式 GB/T 7714 | Zhang, TR,Feng, W,Lu, R,et al. Preparation of photochromic sol-gel composite films containing dodecaphosphotungstic acid[J]. MATERIALS CHEMISTRY AND PHYSICS,2003,78(2):380-384. |
APA | Zhang, TR.,Feng, W.,Lu, R.,Bao, CY.,Li, TJ.,...&Yao, JN.(2003).Preparation of photochromic sol-gel composite films containing dodecaphosphotungstic acid.MATERIALS CHEMISTRY AND PHYSICS,78(2),380-384. |
MLA | Zhang, TR,et al."Preparation of photochromic sol-gel composite films containing dodecaphosphotungstic acid".MATERIALS CHEMISTRY AND PHYSICS 78.2(2003):380-384. |
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