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[1]杜瑞安,马小帅,张萌迪,等.多壁碳纳米管/TiO2复合材料的合成及其光催化性能研究[J].有色金属科学与工程,2019,(05):25-38.
 DU Ruian,MA Xiaoshuai,ZHANG Mengdi,et al.Synthesis of multi-walled carbon nanotubes/TiO2 composites and their photocatalytic performance[J].,2019,(05):25-38.
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多壁碳纳米管/TiO2复合材料的合成及其光催化性能研究(/HTML)
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《有色金属科学与工程》[ISSN:1674-9669/CN:36-1311/TF]

卷:
期数:
2019年05期
页码:
25-38
栏目:
出版日期:
2019-09-20

文章信息/Info

Title:
Synthesis of multi-walled carbon nanotubes/TiO2 composites and their photocatalytic performance
作者:
杜瑞安马小帅张萌迪陈范云余长林
(江西理工大学,冶金与化学工程学院,江西 赣州 341000 )
Author(s):
DU Ruian MA Xiaoshuai ZHANG Mengdi CHEN Fanyun YU Changlin*
(School of Metallurgy and Chemical Engineering, Jiangxi University of Science and Technology, Jiangxi,Ganzhou 341000, China)
关键词:
二氧化钛溶胶-凝胶法碳纳米管负载光催化
分类号:
-
DOI:
-
文献标志码:
-
摘要:
TiO2被广泛应用于环境污染治理、新能源转换以及传感器等领域.通过负载导电材料复合(碳纳米管)拓宽纳米TiO2的光谱响应范围,提高光生电子-空穴对分离效率,是有效提高TiO2光催化性能的研究手段.本文以多壁碳纳米管和钛酸异丙酯为原料,采用溶胶-凝胶法合成碳纳米管负载的TiO2光催化剂.利用X射线单晶粉末衍射(XRD)、比表面积(BET)、扫描电子显微镜(SEM)、傅里叶变换红外光谱(FT-IR)、激光拉曼(Raman)、紫外-可见漫反射吸收光谱(UV-vis DRS)等对催化剂进行表征.通过在365 nm 紫外光照射下,光催化降解亚甲基蓝来研究不同含量碳纳米管负载对TiO2光催化活性的影响.实验研究结果表明,负载2 %碳纳米管的TiO2光催化效果有明显提高,对亚甲基蓝的降解率达90.6 %.碳纳米管负载后,样品的比表面积增大,可见光吸收能力和光电流强度增强,光生电子寿命增长.同时,碳纳米管与TiO2构建了紧密的界面接触关系引起Ti-O键的缩短而有利于光生电子和空穴的分离从而产生大量h+、·OH和超氧自由基等活性基团能有效提高光催化性能

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更新日期/Last Update: 2019-06-06