ICCAS OpenIR
Preparation of photochromic sol-gel composite films containing dodecaphosphotungstic acid
Zhang, TR; Feng, W; Lu, R; Bao, CY; Li, TJ; Zhao, YY; Yao, JN
2003-02-17
Source PublicationMATERIALS CHEMISTRY AND PHYSICS
ISSN0254-0584
Volume78Issue:2Pages:380-384
AbstractA 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.
Keyword12-phosphotungstic Acid Composite Films Sol-gel Technique Photochromic Charge Transfer
Indexed BySCI
Language英语
WOS IDWOS:000179569300014
PublisherELSEVIER SCIENCE SA
Citation statistics
Cited Times:11[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.iccas.ac.cn/handle/121111/79954
Collection中国科学院化学研究所
Corresponding AuthorLu, R
Affiliation1.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
Recommended Citation
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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