| Cu2O/CNTs复合材料的制备及其光催化性能 |
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| 引用本文： | 刘钦,姚巡,张博健,刘飞,刘洋,李鹏,薛睿庭,范希梅.Cu2O/CNTs复合材料的制备及其光催化性能[J].无机化学学报,2019,35(3):459-466. |
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| 作者姓名： | 刘钦 姚巡 张博健 刘飞 刘洋 李鹏 薛睿庭 范希梅 |
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| 作者单位： | 西南交通大学材料科学与工程学院材料先进技术教育部重点实验室;成都京东方光电科技有限公司 |
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| 摘 要： | 以乙二醇为还原剂,采用溶剂热法在混酸(V_(H_2SO_4)/V_(HNO_3)=3∶1)超声处理的碳纳米管(CNTs)表面负载氧化亚铜(Cu_2O),通过改变CNTs的含量制备出球形Cu_2O/CNTs复合材料。采用X射线衍射(XRD)、傅里叶变换红外光谱(FTIR)、扫描电镜(SEM)、能谱分析(EDS)、N_2吸附-脱附、紫外-可见光漫反射(DRS)、有机总碳量(TOC)等对Cu_2O/CNTs进行表征;研究CNTs含量对Cu_2O/CNTs复合材料的结构、形貌、比表面积与孔径、光吸收特性的影响;结合光催化机理讨论CNTs对Cu_2O/CNTs光催化性能的影响。结果表明,当CNTs含量为0.2 g时,Cu_2O/CNTs的光催化性能最佳,在可见光照射60 min后,对甲基橙的降解率达到92.1%。
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| 关 键 词： | 催化作用 氧化亚铜 碳纳米管 可见光照射 甲基橙 |
| 收稿时间： | 2018/10/15 0:00:00 |
| 修稿时间： | 2018/12/29 0:00:00 |
Preparation and Photocatalytic Performance of Cu2O/CNTs Composites |
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| LIU Qin,YAO Xun,ZHANG Bo-Jian,LIU Fei,LIU Yang,LI Peng,XUE Rui-Ting and FAN Xi-Mei.Preparation and Photocatalytic Performance of Cu2O/CNTs Composites[J].Chinese Journal of Inorganic Chemistry,2019,35(3):459-466. |
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| Authors: | LIU Qin YAO Xun ZHANG Bo-Jian LIU Fei LIU Yang LI Peng XUE Rui-Ting and FAN Xi-Mei |
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| Institution: | Key Laboratory of Advanced Technologies of Materials, Ministry of Education, School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu 610031, China,BOECD, Chengdu 611731, China,Key Laboratory of Advanced Technologies of Materials, Ministry of Education, School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu 610031, China,Key Laboratory of Advanced Technologies of Materials, Ministry of Education, School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu 610031, China,Key Laboratory of Advanced Technologies of Materials, Ministry of Education, School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu 610031, China,Key Laboratory of Advanced Technologies of Materials, Ministry of Education, School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu 610031, China,Key Laboratory of Advanced Technologies of Materials, Ministry of Education, School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu 610031, China and Key Laboratory of Advanced Technologies of Materials, Ministry of Education, School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu 610031, China |
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| Abstract: | Carbon nanotubes (CNTs) were treated with the mixed acid (VH2SO4/VHNO3=3:1). Cu2O/CNTs spherical composites were synthesized by one-step solvothermal method, using ethylene glycol as reductant and acid-treated CNTs as the carrier. Cu2O/CNTs were characterized by X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), scanning electron microscopy (SEM), energy spectrum analysis (EDS), N2 adsorption-desorption, ultraviolet-visible diffuse reflectance spectrometer (DRS) and organic total carbon (TOC). The influence of CNTs on the crystal structure, morphology, surface area, pore size and optical characteristics of Cu2O/CNTs composites was investigated. The relationship between CNTs and photocatalytic performance of Cu2O/CNTs in combination with photocatalytic mechanism was analyzed. The results showed that the photocatalytic activity of Cu2O/CNTs was the best when the content of CNTs was 0.2 g, and the degradation rate of methyl orange reached 92.1% after degradation for 60 min. |
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| Keywords: | catalysis copper oxide carbon nanotubes visible light irradiation methl orange |
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