|
|||||
|
|
| 表面修饰碳纳米管/二氧化钛复合光催化剂制备及催化活性研究 | |
| 引用本文： | Wang HY,Li WJ,Chang ZD,Zhou HL,Guo HC. 表面修饰碳纳米管/二氧化钛复合光催化剂制备及催化活性研究[J]. 光谱学与光谱分析, 2011, 31(9): 2529-2532 |
| 作者姓名： | Wang HY Li WJ Chang ZD Zhou HL Guo HC |
| 作者单位： | 1. 北京科技大学冶金与生态工程学院,北京100083;北京科技大学应用科学学院化学系,北京100083 2. 北京科技大学应用科学学院化学系,北京,100083 |
| 基金项目： | 国家重大基础研究发展规划(973计划)项目(2007CB714305); 国家自然科学基金项目(20876157)资助 |
| 摘 要： | 采用溶胶-凝胶法在聚乙烯吡咯烷酮(PVP)修饰的碳纳米管表面均匀沉积纳米级二氧化钛粒子制得复合光催化剂。采用透射电子显微镜(TEM)、X射线衍射仪(XRD)、紫外-可见吸收光谱仪(UV-Vis)和X射线光电子能谱仪(XPS)等手段对复合光催化剂进行表征。结果表明,二氧化钛粒子是呈球形、团聚,随机沉积在未修饰碳纳米管任意表面,甚至部分碳纳米管表面是完全裸露的。经PVP修饰后的碳纳米管,二氧化钛纳米粒子均匀沉积在碳纳米管表面,二氧化钛为纯锐钛矿晶体结构,没有金红石和板钛矿相。表面修饰碳纳米管/二氧化钛复合光催化剂在紫外光照射下降解亚甲基蓝,相比纯的二氧化钛和碳纳米管/二氧化钛复合光催化剂,具有非常高的催化活性。 |
| 关 键 词： | 碳纳米管 二氧化钛 聚乙烯吡咯烷酮 表面修饰 复合光催化剂 |
Preparation and catalytic activity of surface-modification CNTs/TiO2 composite photocatalysts |
|
| Wang Huan-Ying,Li Wen-Jun,Chang Zhi-Dong,Zhou Hua-Lei,Guo Hui-Chao. Preparation and catalytic activity of surface-modification CNTs/TiO2 composite photocatalysts[J]. Spectroscopy and Spectral Analysis, 2011, 31(9): 2529-2532 | |
| Authors: | Wang Huan-Ying Li Wen-Jun Chang Zhi-Dong Zhou Hua-Lei Guo Hui-Chao |
| Affiliation: | WANG Huan-ying1,2,LI Wen-jun2,CHANG Zhi-dong2,ZHOU Hua-lei2,GUO Hui-chao1,2 1.School of Metallurgical and Ecological Engineering,University of Science and Technology Beijing,Beijing 100083,China 2.School of Applied Science,China |
| Abstract: | A novel kind of carbon nanotubes/titanium dioxide(CNTs/TiO2) composite photocatalyst was prepared by a modified sol-gel method in which the nanoscaled TiO2 particles were uniformly deposited on the CNTs modified with poly(vinyl pyrrolidone)(PVP).The composites were characterized by a range of analytical techniques including high resolution transmission electron microscopy(TEM),X-ray diffraction(XRD),and X-ray photoelectron spectroscopy(XPS).The results show the successful covering of the CNTs with PVP,formi... |
| Keywords: | CNTs TiO2 Surface modification PVP Composite photocatalysts |
| 本文献已被 CNKI 万方数据 PubMed 等数据库收录！ | |