Synthesis and Photochromism of Tungstophosphate-Functionalized Ordered Mesoporous Hybrid Silica

被引：5

作者：

Luo, Xiujuan ^{[1
]}

Yang, Chun ^{[1
]}

机构：

[1] Nanjing Normal Univ, Jiangsu Key Lab Biofunct Mat, Coll Chem & Environm Sci, Nanjing 210097, Peoples R China

来源：

JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY | 2011年 / 11卷 / 03期

基金：

中国国家自然科学基金;

关键词：

Tungstophosphate; Mesoporous Silica; Functionalization; Hybrid Materials; Photochromism; OPTICAL-PROPERTIES; COPOLYMER; COMPOSITE; TRIBLOCK; FILMS;

D O I：

10.1166/jnn.2011.3127

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

New tungstophosphate-functionalized ordered mesoporous silica was synthesized based on mono-vacant PW11 and block copolymer template. Upon characterizations of the as-obtained PW11/MHS samples by FT-IR, XRD, ICP-AES and N-2 adsorption-desorption measurements, it was revealed that Keggin units were retained perfectly in hexagonally symmetrical mesopore channels and bound covalently onto the pore walls of mesoporous silica. The material exhibits stable and reversible photochromic property upon UV irradiation even though no a special organic component was supplied as electron donor. This may provide a new approach to construct photochromic materials of potential applications in high-density optical memories and other optical devices.

引用

页码：2349 / 2353

页数：5

共 26 条

[1] Synthesis, characterization and study of the chromogenic properties of the hybrid polyoxometalates [PW11O39(SiR)2O]3-(R = Et, (CH2)nCH=CH2 (n = 0, 1, 4), CH2CH2SiEt3, CH2CH2SiMe2Ph) [J].