纳米碳管/TiO_2制备与催化性能研究  

Preparation and Catalytic Properties of Carbon Nano-tube/TiO_2

作　　者：刘岩嵩 齐海浪 

机构地区：[1]陕西师范大学旅游与环境学院,陕西西安710119

出　　处：《广东化工》2015年第15期26-27,共2页Guangdong Chemical Industry

摘　　要：纳米二氧化钛是一种研究和使用十分广泛的光催化剂。但是由于其粒径小,在液相中分离困难,因此实际使用仍存在问题。文章采用先将负载材料纳米碳管固定,而后将二氧化钛负载其上的办法,得到CN(G)1-Ti O2,有效的解决了液相反应回收困难的问题。通过测试其对底物甲基橙的降解能力发现,CN(G)1-Ti O2具有优异的降解性能,2 h内对高浓度底物的降解率达到45.65%。但CN(G)1-Ti O2也存在对高盐环境适应性不强的问题,需在今后的研究中加以解决。Nano-Ti O2 is a kind of photocatalyst which is popularly developed and used. However, there are still some problems in practice, because they possess small particle diameter, have difficulties in separating in the liquid phase. The article adopt the method that fixing the supported material, the carbon nano-tube before loading the titanium dioxide on it, then the CN（G）1-Ti O2 is obtained. This effectively solved recovery difficulty in the liquid phase reaction. By testing the ability of substrate degradation of methyl orange, we found that CN（G）1-Ti O2 has excellent degradability, the degradation rate for the high concentration of substrate in two hours reaches to 45.65 %. But CN（G）1-Ti O2 has poor adaptability to the high salinity environment, which should be furtherstudied and solved in the future.

关 键 词：纳米二氧化钛 纳米碳管 光催化 甲基橙 

分 类 号：TQ[化学工程]