TiO_2与碳纳米管的复合及光催化协同作用  

TiO_2/Carbon Nanotube Composites and Their Synergistic Effects on Enhancing the Photocatalysis Efficiency

作　　者：黄浪欢[1] 王后锦[1] 刘应亮[1] 焦自斌[1] 邵子倍[1] 

机构地区：[1]暨南大学化学系纳米化学研究所,广州510632

出　　处：《化学进展》2010年第5期867-876,共10页Progress in Chemistry

基　　金：国家自然科学基金项目(No.20801023);暨南大学青年基金(No.51208024)资助

摘　　要：TiO2与碳纳米管均是近15年来最受关注的功能材料。将TiO2与碳纳米管复合构建的TiO2/碳纳米管兼有两种材料的特点及优点,在许多领域得到广泛研究。本文基于国内外最新研究进展,系统综述了近年来逐步建立起来的制备TiO2/碳纳米管的方法,着重介绍了混合法、化学气相沉积法、静电纺丝法、溶胶-凝胶法、水热溶剂热法等几种比较主要的方法。并且以TiO2/碳纳米管在光催化领域的应用研究为侧重点,详细分析了碳纳米管在促进TiO2光生电子-空穴分离、增强可见光吸收等方面的协同作用。文章最后指出相关研究中有待解决的问题,并对此类材料的发展趋势做了展望。Titannium dioxide （TiO2） and carbon nanotubes （CNTs） are the most investigated functional materials over the past 15 years. TiO2/CNTs nanocomposites, which combine the intrinsic properties and advantages of two materials, have been widely studied in diverse fields. In this paper, the recent progress in synthesis study of TiO2/CNTs are systematically reviewed based on the Latest literatures. Some important synthesis methods such as mixing, chemical vapour deposition, electrospinning, sol-gel, hydrothermal and solvothermal are summarized. The synergistic effects such as enhancing the separation of photo-generated electron/hole pairs, increasing the visible light photocatalytie activity and the specific surface area are discussed. The problems that still should be resolved and the further perspectives are pointed out.

关 键 词：TIO2 碳纳米管 光催化 协同作用 

分 类 号：O612.4[理学—无机化学] O643.32[理学—化学]