Visible-Light Photochromic Properties of an Inorganic-Organic Phosphomolybdic Acid/Polythiophene Hybrid Thin Film

被引：3
作者：
Zhao, Wanqing [1 ]
Zhao, Hongmei [1 ]
Feng, Wei [2 ]
Zhao, Honggang [1 ]
机构：
[1] Xinjiang Normal Univ, Sch Chem & Chem Engn, Urumqi 830054, Peoples R China
[2] Jilin Univ, Key Lab Groundwater Resources & Environm, Minist Educ, Changchun 130021, Peoples R China
来源：
CHEMISTRY-SWITZERLAND | 2024年 / 6卷 / 03期
关键词：
phosphomolybdic acid; polythiophene; photochromism; hybrid film; POLYOXOMETALATE; COMPOSITE;
D O I：
10.3390/chemistry6030026
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
A visible-light photochromic hybrid film was synthesized based on combining phosphomolybdic acid (PMoA) with the polythiophene (PTh) matrix. The microstructure and photochromic properties of the materials were analyzed through atomic force microscopy (AFM), Fourier transform infrared spectroscopy (FTIR), X-ray photoelectron spectroscopy (XPS) and ultraviolet-visible spectra (UV-vis). According to FTIR spectra, the geometries of PMoA and PTh were well preserved in hybrid film and there exists a strong interaction at the interface of PMoA and PTh. The XPS spectra revealed the change in the chemical microenvironment and the reduction of Mo6+ atoms in the photoreduction reaction. Under visible light irradiation, the composite film changed from transparent to blue and deepened gradually, generating heteropoly blue. The hybrid film also shows reversibility in the presence of oxygen. The results indicated that the photochromic reaction was inconsistent with photoinduced electron transfer mechanism.
引用
收藏
页码：469 / 475
页数：7
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