Photocatalytic degradation of rhodamine B using CuS-doped ZnS under visible light irradiation
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Date
Authors
Mugumo, Rachel
Tichapondwa, Shepherd Masimba
Chirwa, Evans M.N.
Journal Title
Journal ISSN
Volume Title
Publisher
Italian Association of Chemical Engineering
Abstract
This study investigates the photocatalytic activity of CuS/ZnS in the degradation of Rhodamine B, an azo dye
in textile wastewater generated through processing operations in textile industries which provides significant
socioeconomic benefits. Nanoporous nanocomposites were synthesised via a one-pot thermal decomposition
method which exhibited efficient photocatalytic activity. The microstructure and composition of the prepared
catalyst was characterized using Scanning Electron Microscopy (SEM), Transmission Electron Microscopy
(TEM), Energy-dispersive X-ray Spectroscopy (EDX) and X-Ray Diffraction (XRD). The degradation results
showed that coupling pristine ZnS with the highly photosensitive CuS improved the photocatalytic degradation
efficiency from 67 % to 88 % in 4 h under solar irradiation. This result clearly depicts the degradation efficacy
improvement of ZnS when doped with CuS in rhodamine B degradation using visible light irradiation.
Description
Keywords
Scanning electron microscopy (SEM), Transmission electron microscopy (TEM), Energy-dispersive X-ray (EDX), X-ray diffraction (XRD)
Sustainable Development Goals
Citation
Mugumo R., Tichapondwa S.M., Chirwa E.M.N., 2022, Photocatalytic Degradation of Rhodamine B Using CuS-doped
ZnS Under Visible Light Irradiation, Chemical Engineering Transactions, 94, 1447-1452. DOI:10.3303/CET2294241.