Effect of morphology transformation on photocatalytic performance of CdS crystal

In this study, multi-shaped CdS was synthesized by hydro- and solvothermal methods. Interestingly, the results of scanning electron microscopy and transmission electron microscopy showed that branch-like CdS could be transformed into ball-like and flake-like in deionized water by ethylenediaminetetr...

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Bibliographic Details
Published in:Journal of materials science. Materials in electronics 2020-11, Vol.31 (22), p.20315-20324
Main Authors: Tan, Yang, Zhang, Zheng, Guo, Fuqiang, Guo, Renqing, Bai, Haineng, Zhang, Baohua, Li, Xin, Yang, Qian, Liu, Xuebo
Format: Article
Language:English
Subjects:
Catalytic activity
Characterization and Evaluation of Materials
Chemistry and Materials Science
Deionization
Electron microscopy
Flakes
Hexagonal phase
Materials Science
Microscopy
Morphology
Optical and Electronic Materials
Optical properties
Photocatalysis
Photoluminescence
Rhodamine
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Summary:In this study, multi-shaped CdS was synthesized by hydro- and solvothermal methods. Interestingly, the results of scanning electron microscopy and transmission electron microscopy showed that branch-like CdS could be transformed into ball-like and flake-like in deionized water by ethylenediaminetetraacetic acid and l -cysteine, respectively, and the growth mechanism of CdS was discussed and explored: the ion-binding rate might be the main factor for the morphology transformation of CdS. X-ray diffraction and energy dispersive spectroscopy revealed branch-like CdS which exhibited the hexagonal phase. Besides, the optical characteristics of CdS were performed by ultraviolet–visible and photoluminescence spectrum. Also, CdS was utilized to explore the photocatalytic activity of rhodamine B, and the result showed that the photocatalytic activity of ball-like CdS was higher than flake-like and branch-like CdS.
ISSN:0957-4522
1573-482X
DOI:10.1007/s10854-020-04551-9