二氧化钛基光催化材料的制备与应用  

The preparation and application of titania-based photocatalytic nanomaterials

作　　者：张万忠[1] 乔学亮[1] 邱小林[2] 陈建国[1] 

机构地区：[1]华中科技大学材料学院,湖北武汉430074 [2]南昌理工学院纳米材料研究中心,江西南昌330013

出　　处：《化学试剂》2006年第9期523-526,543,共5页Chemical Reagents

基　　金：教育部高校博士点基金项目(20050487011)

摘　　要：光催化降解环境污染物具有反应条件温和、无毒无害、不产生二次污染和处理费用低廉等优点,能降解绝大多数有毒有害化学物质,是很有前途的环保方法。讨论了TiO2的主要制备方法,介绍了改进TiO2光催化活性的一些方法,对近年来二氧化钛基光催化材料在有机工业污水处理及无机废水净化方面的应用进行了评述,对该材料的发展趋势进行了展望。It has a great deal of advantages to photocatelyticaly degrade environmental pnllutants using semiconductor nanomaterials as photocatnlysts. This method is a promising way of environment protection for its mild reacting conditions and low-cost. Titania-hased nanomaterials not only have high chemical stability and strong degradation ability to most of toxic substances, but also are friendly to ecosystem. The products of degradation have also no secondary polution to environment. As a result, titania and its modified materials have gained importance in the area of the treatment of environmental wastewater and waste gas. In this re- view the main preparation methods of titania, especially the solgel method, are discussed. The means to improve .titania photoCatalytic activity are briefly introduced. Recent application progress of the titania-based nanomaterials made in the treatment of organic industrial effuents and the purifacation of inorganic wastewater is reviewed. In the end, the developing trendy of the materials is prospected.

关 键 词：二氧化钛 光催化 制备 应用 

分 类 号：O643[理学—物理化学]