Effects of initial pH and CuS/ZnS loading in rhodamine B photodegradation under visible light irradiation

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dc.contributor.author Mugumo, Rachel
dc.contributor.author Tichapondwa, Shepherd Masimba
dc.contributor.author Chirwa, Evans M.N.
dc.date.accessioned 2023-05-10T13:01:38Z
dc.date.available 2023-05-10T13:01:38Z
dc.date.issued 2022
dc.description.abstract Copper sulphide doped zinc sulphide (CuS/ZnS) microporous aggregate nanocomposites were synthesised through one-step solid phase thermal decomposition method. This work focused on the effect of initial solution pH and catalyst loading on the degradation of rhodamine B dye using a CuS/ZnS photocatalyst under visible light irradiation. Rhodamine B is a dye widely applied in the textile industry during the colouring process; however, its minute traces in water antagonistically affect the environment and all life forms. The physical and optical properties of the synthesised catalyst were characterised using techniques namely, X-Ray Diffraction (XRD), Scanning Electron Microscopy (SEM), Transmission Electron Microscopy (TEM) and Brunauer-Emmett- Teller (BET). Optimum rhodamine B dye removal measured 97 % efficiency at 10 gL-1 loading after 2.5 h and complete mineralisation (100 % efficiency) at a pH of 1 after 4 h under visible irradiation. This study reports a promising CuS/ZnS heterogeneous photocatalyst in rhodamine B removal from wastewater. en_US
dc.description.department Chemical Engineering en_US
dc.description.librarian am2023 en_US
dc.description.sponsorship The National Research Fund (NRF) of South Africa and Rand Water Chair in Water Utilisation. en_US
dc.description.uri www.cetjournal.it en_US
dc.description.uri http://www.aidic.it/cet en_US
dc.identifier.citation Mugumo R., Tichapondwa S.M., Chirwa E.M.N., 2022, Effects of Initial pH and CuS/ZnS Loading in Rhodamine B Photodegradation Under Visible Light Irradiation, Chemical Engineering Transactions, 94, 1027-1032. DOI:10.3303/CET2294171. en_US
dc.identifier.issn 2283-9216 (online)
dc.identifier.other 10.3303/CET2294171
dc.identifier.uri http://hdl.handle.net/2263/90622
dc.language.iso en en_US
dc.publisher Italian Association of Chemical Engineering en_US
dc.rights © 2022, AIDIC Servizi S.r.l. en_US
dc.subject Copper sulphide doped zinc sulphide (CuS/ZnS) en_US
dc.subject Scanning electron microscopy (SEM) en_US
dc.subject X-ray diffraction (XRD) en_US
dc.subject Transmission electron microscopy (TEM) en_US
dc.subject Brunauer-Emmett-Teller (BET) en_US
dc.title Effects of initial pH and CuS/ZnS loading in rhodamine B photodegradation under visible light irradiation en_US
dc.type Article en_US


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