吉林大学学报(理学版) ›› 2022, Vol. 60 ›› Issue (6): 1452-1458.

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不同形貌ZnO的可控制备及光催化活性

杜勇慧1,2, 李玉环2, 杨桐骁2, 孙思进2, 陈红2   

  1. 1. 北华大学 材料科学与工程学院, 吉林 吉林 132013;
    2. 北华大学 理学院, 吉林 吉林 132013

  • 收稿日期:2022-05-31 出版日期:2022-11-26 发布日期:2022-11-26
  • 通讯作者: 陈红 E-mail:chlht518@163.com

Controllable Preparation and Photocatalytic Activity of ZnO with Different Morphologies

DU Yonghui1,2, LI Yuhuan2, YANG Tongxiao2, SUN Sijin2, CHEN Hong2   

  1. 1.School of Materials Science and Engineering, Beihua University, Jilin 132013, Jilin Province, China;
    2. College of Science, Beihua University, Jilin 132013, Jilin Province, China
  • Received:2022-05-31 Online:2022-11-26 Published:2022-11-26

摘要: 采用直接沉淀法在同一体系中制备一维棒状、 二维片状和三维花状ZnO, 并对合成材料的物相、 形貌及光学性质进行表征,  通过降解罗丹明B, 测试不同形貌ZnO的光催化性能,  结合不同形貌ZnO的性能对其光催化效率差异进行分析.  结果表明: 所有样品均具有六方纤锌矿结构, 且大小均匀;  二维片状ZnO比表面积最大, 且二维片状ZnO和三维花状ZnO表面均出现大量孔洞; 二维片状ZnO具有最大禁带宽度; 二维片状ZnO光催化效率最高, 一维棒状ZnO光催化效率最低. 

关键词: 氧化锌, 形貌, 光催化

Abstract: One-dimensional (1D) rod-like, two-dimensional (2D) sheet-like and three-dimensional (3D) flower like ZnO were prepared by direct precipitation method in the same system, and the phase, morphology and optical properties of the synthesized materials were characterized. The photocatalytic performance of different morphological ZnO was tested  by degradation of Rhodamine B, and the photocatalytic efficiency differences were analyzed by combining the performance of ZnO with different morphologies. The results show that all samples have a hexagonal wurtzite structure and  uniform in size. The specific surface area of 2D sheet-like ZnO is the largest, and there are a lot of holes on the surface of  2D sheet-like and 3D flower-like ZnO.  The 2D sheet-like ZnO has the largest band gap width. The   2D sheet-like ZnO has the highest photocatalytic efficiency, and the 1D rod-like ZnO has the  lowest photocatalytic efficiency. 

Key words: zinc oxide, morphology, photocatalysis

中图分类号: 

  • O643.36