Fabrication and visible-light photochromism of novel hybrid inorganic-organic film based on polyoxometalates and ethyl cellulose

被引：29
|
作者：
Jing, Xiaofei [1 ]
Zou, Donglei [1 ]
Meng, Qingling [2 ]
Zhang, Wei [1 ]
Zhang, Fengjun [1 ]
Feng, Wei [1 ]
Han, Xiangkui [2 ]
机构：
[1] Jilin Univ, Minist Educ, Key Lab Groundwater Resources & Environm, Changchun 130021, Peoples R China
[2] Jilin Jianzhu Univ, Minist Educ, Key Lab Songliao Aquat Environm, Changchun 130118, Peoples R China
来源：
INORGANIC CHEMISTRY COMMUNICATIONS | 2014年 / 46卷
基金：
中国国家自然科学基金; 高等学校博士学科点专项科研基金;
关键词：
Polyoxometalates; Ethyl cellulose; Hybrid film; Visible-light photochromism; NANOCOMPOSITE FILMS; THIN-FILMS; BEHAVIOR; MICROSTRUCTURE; POLYMER; DEVICES; OXIDE; ACID; WO3;
D O I：
10.1016/j.inoche.2014.05.030
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
Novel phosphomolybdic acid/ethyl cellulose hybrid film (denoted as PMoA/EC) was synthesized by entrapping PMoA particles into an EC matrix. The microstructure, visible-light photochromic behaviors and mechanism were fully investigated. The characterizations revealed that spherical PMoA particles dispersed uniformly in the hybrid film and their Keggin geometry were well preserved. The structure of EC was also maintained in the hybrid film after a composite process. Under visible light irradiation, the colorless transparent PMoA/EC hybrid film turned to blue and exhibited high photochromic responsiveness together with reversible photochromism in the presence of oxygen. The appearance of Mo5+ species in XPS spectra indicated that photoreduction reaction has occurred between PMoA particles and the EC matrix and suggested proton transfer mechanism during the photochromic process. To the best of our knowledge, EC was used to construct polyoxometalate-based hybrid film with visible light photochromism for the first time. (C) 2014 Elsevier B.V. All rights reserved.
引用
收藏
页码：149 / 154
页数：6
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