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材料工程  2015, Vol. 43 Issue (8): 19-24    DOI: 10.11868/j.issn.1001-4381.2015.08.004
  材料与工艺 本期目录 | 过刊浏览 | 高级检索 |
溶液法制备ZnO纳米阵列的影响因素及光催化活性
鲍艳, 张永辉, 马建中
陕西科技大学 资源与环境学院, 西安 710021
Influence Factors and Photocatalytic Activity of ZnO Nanoarrays Synthesized via Solution Method
BAO Yan, ZHANG Yong-hui, MA Jian-zhong
College of Resource and Environment, Shaanxi University of Science and Technology, Xi'an 710021, China
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摘要 利用无水醋酸锌原位水解生成的纳米ZnO作晶种,通过溶液法制备ZnO纳米阵列,研究反应过程中各因素对ZnO纳米阵列形貌的影响,并对制得的ZnO纳米阵列的光催化活性进行研究。结果表明:采用浸涂方式制备晶种,生长得到的ZnO纳米阵列在衬底表面均匀密集分布;采用喷涂方式制备晶种,生长得到的ZnO纳米阵列存在着较大的空白区域。在晶种前驱体溶液中添加二乙醇胺或甲酰胺,会引起纳米ZnO成核的聚集,不利于制得分布均匀的ZnO纳米阵列。反应溶液pH=6.7时,可得到均匀、密集且取向性良好的ZnO纳米阵列结构。以不锈钢金属网为基底制备的ZnO纳米阵列应用于15mg/L甲基橙的光催化降解,3h即降解完全,且进行连续三次反应后仍表现出良好的光催化活性。
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鲍艳
张永辉
马建中
关键词 ZnO纳米阵列晶种加热处理反应溶液pH光催化活性    
Abstract:ZnO nanoarrays were fabricated through solution method using nano ZnO as seeds, which were hydrolyzed in-situ by anhydrous zinc acetate. The effects of various factors on the morphologies of ZnO nanoarrays during the reaction process, and the photocatalytic activity of the obtained ZnO nanoarrays was investigated. The results indicate that ZnO nanoarrays, which are obtained from ZnO seeds fabricated by dip-coating, distribute uniformly and densely;ZnO nanoarrays, which are obtained from ZnO seeds fabricated by spray coating, appears with larger blank area;the addition of diethanolamine or formamide into the seeds precursor solution, will result in the aggregation of nano ZnO nucleation, which is not conducive to gain the uniform distribution of ZnO nanoarrays. When the solution pH is 6.7, the uniform and dense ZnO nanoarrays with good vertical orientation can be obtained. When using ZnO nanoarrays based on stainless steel wire mesh for the photocatalytic degradation of methyl orange of about 15mg/L, methyl orange is completely eliminated after 3h. Moreover, the ZnO nanoarrays exhibit good photocatalytic activity after three times continuous photocatalytic degradation in succession.
Key wordsZnO nanoarray    seed    heat treatment    reaction solution pH    photocatalytic activity
收稿日期: 2014-11-06      出版日期: 2015-08-17
1:  TB321  
通讯作者: 马建中(1960—),男,教授,从事有机无机纳米复合材料的制备及机理研究工作,联系地址:陕西省西安市陕西科技大学资源与环境学院(710021),E-mail:majz@sust.edu.cn     E-mail: majz@sust.edu.cn
引用本文:   
鲍艳, 张永辉, 马建中. 溶液法制备ZnO纳米阵列的影响因素及光催化活性[J]. 材料工程, 2015, 43(8): 19-24.
BAO Yan, ZHANG Yong-hui, MA Jian-zhong. Influence Factors and Photocatalytic Activity of ZnO Nanoarrays Synthesized via Solution Method. Journal of Materials Engineering, 2015, 43(8): 19-24.
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http://jme.biam.ac.cn/CN/10.11868/j.issn.1001-4381.2015.08.004      或      http://jme.biam.ac.cn/CN/Y2015/V43/I8/19
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