Self-Assembly of ZnO Nanoplatelets into Hierarchical Mesocrystals and Their Photocatalytic Property

4th International Conference on Advanced Engineering and Technology

Yang, Yongqiang^1 ; Wang, Qinsheng^1 ; Liu, Zheng^1 ; Jin, Ling^1 ; Ou, Bingxian^1 ; Han, Pengju^1 ; Wang, Qun^1 ; Cheng, Xiaobao^1 ; Liu, Wenjun^1 ; Wen, Yu^1 ; Liu, Yuan^1 ; Zhao, Weifang^1

National Graphene Products Quality Supervision and Inspection Center (Jiangsu), Jiangsu Province Special Equipment Safety Supervision Inspection Institute, Branch of Wuxi, Wuxi, China^1

关键词: Chemical compositions;    Chemical procedures;    Crystalline structure;    FT-IR and Raman;    Mesocrystals;    Nano-platelets;    Photocatalytic performance;    Photocatalytic property;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/317/1/012076/pdf
DOI  :  10.1088/1757-899X/317/1/012076

来源: IOP

【 摘 要 】

In this work, a simple chemical procedure was developed for the preparation of mesocrystals consisiting of ZnO nanoplateletes. By simple mixing the aqueous solutions Zn(NO3)2, NaOH and ethanol at certain temperatures, the hierarchical mesocrystals with big at both ends but small in the middle were obtained. After being annealed in air at certain temperatures, the same structured ZnO mesocrystals were generated. The morphology, crystalline structure and chemical composition were characterized using SEM, XRD FT-IR and Raman. The photocatalytic properties of the ZnO mesocrystals were also investigated. It was illustrated that the ZnO mesocrystals show decent photocatalytic performance to the photodegradation of methyl blue.