碳纳米管/TiO_2复合材料的制备及表征研究  

Preparation and characterization of carbon nanotubes /TiO_2 composites

作　　者：周娟[1] 张新磊[2] 李俐俐[3] 罗稳[2] 王鹏飞[1] 张江坤[1] 

机构地区：[1]周口师范学院化学化工学院,河南周口466001 [2]周口师范学院稀土功能材料及应用重点实验室,河南周口466001 [3]周口师范学院生命科学与农学学院,河南周口466001

出　　处：《化学研究与应用》2014年第9期1457-1461,共5页Chemical Research and Application

基　　金：国家自然科学自然青年基金(21301200)资助;河南省科技厅项目(132102210193)资助;河南省教育厅项目(12A150029)资助;周口师范学院青年基金项目(zksyqn201319A)资助;河南省创新型科技人才队伍建设工程及应用化学重点学科资助

摘　　要：采用溶胶-凝胶法和水热合成法,制备出碳纳米管/TiO2(CNTs/TiO2)复合材料。通过X-射线衍射仪(XRD)、扫描电子显微镜(SEM),紫外-可见漫反射光谱(UV-Vis),荧光光谱(LS)检测CNTs/TiO2的晶型及形貌。结果表明:锐钛矿相TiO2纳米颗粒负载在碳纳米管的管壁上,CNTs/TiO2在紫外-可见光波长范围均有较好的吸收性能。在灭菌灯照射下,以甲基橙溶液为降解目标,CNTs/TiO2复合材料对甲基橙溶液的降解有高的光催化活性,180 min内降解率达到85%以上。Carbon nanotubes（ CNTs）/TiO2 were prepared by sol-gel method and hydrothermal synthesis method. The morphology and crystal structure of the CNTs/TiO2 were characterized by X-ray diffraction（ XRD） ,scanning electron microscopy（ SEM） ,ultra-violet visible spectrum analyzer（UV-Vis）,Luminescence spectrum（LS）. The results showed that anatase phase TiO2 nanoparticles were supported on the outer tube wall of carbon nanotubes. CNTs/TiO2 had good absorption properties in the ultra-violet and visible wavelength range. The catalytic performances of CNTs/TiO2 composites were tested by degradating methyl orange solution under sterilization lamp irradiation. CNTs/TiO2 composite materials had higher photocatalytic activity and the degradation rate reached 85%within 180 min.

关 键 词：溶胶-凝胶法 水热合成法 碳纳米管/TiO2 光催化 

分 类 号：O614.41[理学—无机化学]