石墨烯/TiO_2复合材料的制备及其光催化性能的研究  

Preparation and Photocatalytic Activity of Graphene/TiO_2 Composites

作　　者：雷芸[1] 江莹[1] 钱坤[1] 何静[1] 陈禹成[1] 

机构地区：[1]武汉理工大学资源与环境工程学院,武汉430070

出　　处：《硅酸盐通报》2012年第2期243-246,共4页Bulletin of the Chinese Ceramic Society

基　　金：教育部博士点基金新教师项目(20101j0144);教育部留学回国人员科研启动费资助(20111j0014)

摘　　要：本实验以细鳞片石墨为原料,采用Hummers法制备氧化石墨,经超声波振荡得到氧化石墨烯,加入水合肼回流制得石墨烯材料。采用溶胶-凝胶法制备锐钛矿型TiO2及石墨烯/TiO2复合材料。在紫外光照射下,分别以石墨烯/TiO2复合材料及锐钛矿型TiO2为催化剂,在甲基橙溶液中进行光催化降解,结果显示,石墨烯/TiO2光催化性能明显高于相同条件下的锐钛矿型TiO2。In this experiment, 30 mesh graphite was prepared as raw materials, Graphite oxide is prepared by Hummers method, and further treated with super-sonic oscillation to get grapheme oxide. After hydrazine hydrate was added, grapheme oxide was reduced to graphene by reflux. The anatase titanium dioxide and the composite of TiO_2/graphene is prepared by sol-gel method. Under ultraviolet radiation, TiO_2/graphene and TiO_2 as catalyzers were added into methyl orange solution. The result shows that the activity of TiO_2/graphene is better than that of TiO_2 under the same conditions.

关 键 词：石墨烯/TiO2复合材料 锐钛矿型TiO2 溶胶-凝胶 

分 类 号：TB33[一般工业技术—材料科学与工程]