量子点表面印迹智能型光催化剂制备及选择性降解抗生素废水研究

项目名称： 量子点表面印迹智能型光催化剂制备及选择性降解抗生素废水研究

项目编号： No.21207053

项目类型： 青年科学基金项目

立项/批准年度： 2013

项目学科： 环境化学

项目作者： 霍鹏伟

作者单位： 江苏大学

项目金额： 25万元

中文摘要： 本课题旨在综合半导体量子点材料的光催化特异性能、表面分子印迹技术的靶向识别、温敏型高分子的温度可控等优点，提出温敏型高分子修饰表面印迹半导体量子点智能型可识别性光催化去除四环素抗生素废水的行为和机理研究的课题。通过水热/溶剂热方法、微波法、复合组装法等手段合成具有尺寸分布窄、结晶性好、光稳定性好、表面性质可控、量子产率高、光催化活性稳定的Ⅱ-Ⅵ量子点材料，并与表面分子印迹技术和温敏高分子修饰技术相结合，制备具有智能可控化、选择性、高效降解环境中抗生素类污染物的表面分子印迹光催化剂，以解决光催化效率不高及其光催化降解的无选择性、不可控的问题；研究量子点及表面修饰量子点的智能可控识别光催化降解抗生素废水的机理，建立相应的热力学动力学模型；研究以光催化体系搅拌装置为载体，设计、制备可智能型可控/选择性光催化降解抗生素废水的光催化用搅拌棒。

中文关键词： 量子点；光催化；分子印迹；抗生素；温敏响应

英文摘要： In this work,according to the special photocatalysis performance of semconductor quantum dots, the targeted identify of surface molecular imprinted technology and thermosensitive polymer temperature controllability, we proposed selected photocatalytic degradation of tetracycline antibiotics with the thermosensitive polymer modified surface imprinted quantum dots, and study the intelligent degradation of tetracycline antibiotics behavior and menchanism. First, the narrow size distribution, good crystallization, controllable surface properties, good stability, light photocatalytic activity stability Ⅱ-Ⅵ quantum dots were prepared via hydrothermal/solvothermal method, composite assembly method etc. and then it was prepared the intelligent, high selectivity and photo-degradation tetracycline antibiotics of surface imprinted photocatalysts and thermosensitive polymer modified technology, and solved the problems of uncontrollable, non-selectivity and low photocatalytic activity. It studys the identify of intelligent degradation mechanism of quantum dots and/ suface modified quantum dots, perfects the corresponding thermodynamic model. It studys design and preparation of photocatalysis with stirring rod which could intelligent controllablityand selecte photo-degradation of tetracycline antibiotics, stirring device as t

英文关键词： quantum dots；photocatalysis；molecular imprinted technology；antibiotics；thermal response