Effects of organic solvents on morphologies, photoluminescence, and photocatalytic properties of ZnO nanostructures

Micro & nano letters

article

Ce Liang¹  Xian He¹  Zhiwei Cai²  Gang Chang²  Sen Lin¹  Yanan Hao¹  Yinxiao Du³  Dongyu Fan¹  Yonggang Wang¹  Ke Bi¹  Ming Lei¹ 

[1] State Key Laboratory of Information Photonics and Optical Communications and School of Science, Beijing University of Posts and Telecommunications;Hubei Collaborative Innovation Center for Advanced Organic Chemical Materials, Ministry-of-Education Key Laboratory for the Green Preparation and Application of Functional Materials, Faculty of Materials Science and Engineering, Hubei University;Department of Mathematics and Physics, Zhengzhou University of Aeronautics

关键词: X-ray diffraction;    zinc compounds;    surface states;    crystal morphology;    nanofabrication;    semiconductor growth;    nanoparticles;    wide band gap semiconductors;    II-VI semiconductors;    photoluminescence;    particle size;    crystal growth from solution;    surface morphology;    powders;    photocatalysis;    photocatalysts;    crystal microstructure;    nanorods;    photocatalytic properties;    zincic source;    typical solvothermal method;    rod-like structures;    diverse sizes;    electron microscopy;    possible growth mechanism;    discrepant polarity;    viscosity;    size-depended photoluminescence;    different but regular photoelectric behaviours;    exposed polarity facets;    zinc oxide nanostructures;    zinc oxide products;    morphologies;    polar organic solvents;    zinc oxide particles;    organo-metal zinc acetylacetonate;    (Zn(acac)2);    quasi-spherical structures;    methanol;    ethanol;    1-propanol;    isopropanol;    acetone solutions;    microstructure;    X-ray powder diffraction;    photoelectric behaviour;    surface states;    specific surface areas;    ZnO;   

DOI  :  10.1049/mnl.2018.5289

学科分类：计算机科学（综合）

来源: Wiley

【 摘 要 】

Employing organo-metal zinc acetylacetonate (Zn(acac) 2 ) as the zincic source, various zinc oxide (ZnO) products with different morphologies have been synthesised via a typical solvothermal method in different polar organic solvents. Quasi-spherical and rod-like structures with diverse sizes are successfully fabricated in the methanol, ethanol, 1-propanol, isopropanol, and acetone solutions of NaOH, respectively. Moreover, their microstructures and morphologies have been investigated by X-ray powder diffraction and electron microscopy. A possible growth mechanism has been proposed. The various morphologies of ZnO are attributed to the discrepant polarity and viscosity of organic solvents and the supersaturation levels of reactants. Furthermore, the size-depended photoluminescence and photocatalytic properties of various structures of ZnO are also studied. It is believed that the different but regular photoelectric behaviours are resulting from the surface states and specific surface areas which are related to the exposed polarity facets as well as the size of ZnO particles.

【 授权许可】

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