分子印迹型二氧化钛及其复合材料的合成和应用  

Synthesis and Application of Molecularly Imprinted Polymers Based on Titanium Dioxide and Its Composites

作　　者：管杰 孙玲娜 徐琴[1] 胡效亚[1] Jie Guan;Lingna Sun;Qin Xu;Xiaoya Hu(College of Chemistry and Chemical Engineering,Yangzhou University,Yangzhou 225000,China)

机构地区：[1]扬州大学化学化工学院,扬州225000

出　　处：《化学进展》2018年第11期1749-1760,共12页Progress in Chemistry

基　　金：国家自然科学基金项目(No.21675140;21575124)资助~~

摘　　要：分子印迹技术是将分子设计、大分子合成、分子识别、生物模拟以及生物工程等技术的优点结合起来发展而成的一种新兴跨学科方法,所形成的分子印迹聚合物亲合性好、选择性和稳定性高。二氧化钛及其复合材料价格低廉、安全高效、绿色环保、光催化活性高,被广泛应用于光催化、光电转换等领域。二氧化钛及其复合材料形成的分子印迹聚合物稳定性高,光催化活性好,并且具有良好的选择性,能对低浓度、高毒性污染物进行选择性富集及光催化降解,拓宽了其应用范围。本文综述了近二十年来分子印迹型二氧化钛及其复合材料的制备方法及其在光催化降解、传感器构建以及其他领域的应用概况,并进行展望。Molecular imprinting technology (MIT)is an interdisciplinary approach which has been recently developed based on the advantages of macromolecular synthesis,molecular design,molecular recognition and biological simulation and bioengineering.The molecularly imprinted polymers (MIPs)obtained by MIT process have good affinity,high selectivity and excellent stability.TiO2 and its nanocomposites have been widely used in photocatalysis,photoelectric conversion and other fields due to their stable chemical properties and low chemical toxicity.MIPs based on TiO2 and its nanocomposites exhibit enhanced stability and photocatalytic activity,good selectivity,high accumulation and degradation properties towards low concentrations of pollutants.Furthermore, the application of TiO2 and its composite as the imprinting support could reduce the nonspecific adsorption, increase the relative adsorption capacity and accelerate the mass transfer rate.They have obtained a strong position in material science and technology and showed broad applications.This article provides a short review of the developments of MIPs based on TiO2 and its nanocomposites in recent two decades.Special attention is paid to their synthesis processes including different surface imprinting,sol-gel polymerization and liquid deposition process.Their applications in photocatalytic degradation and sensor construction areas have also been summarized.The prospects for their future development are also proposed.

关 键 词：二氧化钛 复合材料 分子印迹 合成方法 应用 

分 类 号：O643.36[理学—物理化学]