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材料导报  2018, Vol. 32 Issue (24): 4224-4229    https://doi.org/10.11896/j.issn.1005-023X.2018.24.003
  无机非金属及其复合材料 |
ZnO/CNTs复合材料的制备、表征及光催化性能
潘会, 胡轶, 兀晓文, 胡帅帅, 张浩茹
新疆师范大学化学化工学院,乌鲁木齐830054
Preparation, Characterization and Photocatalytic Properties of ZnO/CNTs Composites
PAN Hui, HU Yi, WU Xiaowen, HU Shuaishuai, ZHANG Haoru
College of Chemistry and Chemical Engineering, Xinjiang Normal University, Urumqi 830054
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摘要 采用水热法制备了一系列氧化锌和碳纳米管的复合材料(ZnO/CNTs),详细考察了碳纳米管的含量对复合材料光催化性能的影响。利用X射线衍射仪、紫外-可见漫反射吸收光谱、扫描电子显微镜、X射线能谱、透射电子显微镜、X射线光电子能谱和氮气吸附-脱附等测试手段对样品的结构、形貌和光学性质进行了表征,并用亚甲基蓝溶液模拟污染物,评价了ZnO/CNTs复合材料的光催化性能。结果表明:添加CNTs提高了ZnO的比表面积,增强了ZnO的可见光吸收。ZnO/CNTs复合材料较纯ZnO具有更高的光催化活性,并且随着CNTs含量的增加,ZnO/CNTs复合材料的光催化活性呈先增加后减小的趋势。当CNTs的含量为0.3%(质量分数)时,ZnO/CNTs复合材料的光催化活性最高,经过50 min光照后,亚甲基蓝的降解率达到了96.2%。
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潘会
胡轶
兀晓文
胡帅帅
张浩茹
关键词:  ZnO  碳纳米管  复合材料  光催化    
Abstract: A series of ZnO/CNTs composite samples were prepared by hydrothermal method. The influence of CNTs content on the photocatalytic properties of ZnO/CNTs composites were investigated in detail. The crystalline structures, morphologies and light absorption properties of the ZnO/CNTs composites were analysed using X-ray diffractometer, UV-vis spectrophotometer, scanning electron microscopy, X-ray energy dispersive spectroscope, transmission electron microscopy, X-ray photoelectron spectroscopy and N2 adsorption-desorption measurement, respectively. In this work, methylene blue was used as the model substance to evaluate the photocatalytic activity of ZnO/CNTs composites. The results showed that the addition of CNTs could enhance BET surface area and light absorption in visible light region of ZnO. Compared to pure ZnO, the photocatalytic efficiencies of ZnO/CNTs composites were greatly improved. In addition, with the increase of CNTs content, the photocatalytic efficiencies of ZnO/CNTs composites increase firstly and then decrease. The best performance is achieved with the ZnO/CNTs composites containing 0.3wt% CNTs, and the photocatalytic degradation of methylene blue achieves 96.2% in 50 min under the irradiation of light.
Key words:  ZnO    CNTs    composites    photocatalysis
                    发布日期:  2019-01-23
ZTFLH:  O643  
基金资助: 自治区高校科研计划项目青年教师科研培育基金(XJEDU2016S062);新疆师范大学大学生创新训练项目(201710762044)
作者简介:  潘会:女,1986年生,博士,讲师,主要从事无机材料、多相催化等研究 E-mail:panhui86@163.com
引用本文:    
潘会, 胡轶, 兀晓文, 胡帅帅, 张浩茹. ZnO/CNTs复合材料的制备、表征及光催化性能[J]. 材料导报, 2018, 32(24): 4224-4229.
PAN Hui, HU Yi, WU Xiaowen, HU Shuaishuai, ZHANG Haoru. Preparation, Characterization and Photocatalytic Properties of ZnO/CNTs Composites. Materials Reports, 2018, 32(24): 4224-4229.
链接本文:  
http://www.mater-rep.com/CN/10.11896/j.issn.1005-023X.2018.24.003  或          http://www.mater-rep.com/CN/Y2018/V32/I24/4224
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