Photocatalytic properties of ZnO thin film with different morphologies from seed, array to grass

Micro & nano letters

article

Zhaopeng Wang¹  Xiaoyun Ye¹  Long Chen¹  Leilei Zhang¹  Qianting Wang¹  Lian Ma¹  Nengbin Hua¹ 

[1] School of Materials Science and Engineering, Fujian University of Technology;Fujian Provincial Key Laboratory of Advanced Materials Processing and Application;Mould Technology Development Base of Fujian Province;Fuzhou Innovation Platform for Novel Materials and Mould Technology

关键词: X-ray diffraction;    zinc compounds;    wide band gap semiconductors;    semiconductor growth;    visible spectra;    ultraviolet spectra;    scanning electron microscopy;    transmission electron microscopy;    photoconductivity;    II-VI semiconductors;    photocatalysts;    photocatalytic properties;    ZnO thin film;    aqueous solution method;    optical properties;    transmission electron microscope;    ZnO arrays;    grassy ZnO photocatalyst;    ZnO morphology;    methyl blue degradation rate;    glass substrate;    hexagonal wurtzite;    UV–Vis spectrophotometer;    fluorescence spectrometer;    X-ray diffraction;    scanning electron microscope;    temperature 293.0 K to 298.0 K;    ZnO;   

DOI  :  10.1049/mnl.2020.0017

学科分类：计算机科学（综合）

来源: Wiley

【 摘 要 】

ZnO thin film with different morphologies from seed, array to grass was grown by simple aqueous solution method under room temperature. The morphologies, structure, optical properties and photocatalytic properties of the samples were characterised by transmission electron microscope, scanning electron microscope, X-ray diffraction, fluorescence spectrometer, UV–Vis spectrophotometer and photocurrent response. The results showed that the ZnO arrays and grassy ZnO were both hexagonal wurtzite with uniform distribution and regular growth on the glass substrate. ZnO thin film with different morphologies affected the utilisation efficiency of the ultraviolet light. Multiple light reflections inside the grassy ZnO greatly increase the light efficiency. The methyl blue degradation rate of grassy ZnO photocatalyst was superior under the UV light compared to the other ZnO morphologies. Grassy ZnO showed favourable stability after five cycles. The comparison of the ZnO semiconductor in different dimensions is helpful for further research on other photocatalysts as well as their potential application.

【 授权许可】

CC BY|CC BY-ND|CC BY-NC|CC BY-NC-ND