David E. Motaung
Current Organizations / Institutes
The organizations/institutes from the scholar's latest article
Research Subjects
David E. Motaung has a total of 7 co-authors. Here are the top co-authors by number of shared publications:
- Dina N. Oosthuizen
Department of Chemistry University of the Free State PO Box 339 Bloemfontein 9300 South Africa
1 shared publication - Dineo A. Bopape
Department of Chemistry, University of Limpopo, Mankweng 0727, South Africa
1 shared publication H.C. Swart
Department of Physics, University of the Free State, P.O. Box 339, Bloemfontein ZA9300, South Africa
1 shared publication- Ioannis Kortidis
Physics Department, University of Zululand, Private Bag X1001, KwaDlangezwa, ZA3886, South Africa
1 shared publication - Nolubabalo Matinise
UNESCO-UNISA Africa Chair in Nanosciences and Nanotechnology, College of Graduate Studies, University of South Africa, Muckleneuk Ridge, PO Box 392, Pretoria 0002, South Africa
1 shared publication - Nomso Charmaine Hintsho-Mbita
Department of Chemistry, University of Limpopo, Private Bag X 1106, Sovenga, Polokwane 0727, South Africa
1 shared publication
Latest Publications
- Open Access
Green Synthesis of CuO-TiO2 Nanoparticles for the Degradation of Organic Pollutants: Physical, Optical and Electrochemical Properties
CuO-TiO2 nanocomposites were successfully synthesized using the C. benghalensis plant extracts. The effect of the composition of CuO to TiO2 on the morphological, optical, electrochemical, and photodegradation efficiency in the composites was studied. SEM, XRD, UV-vis, FTIR, TGA, BET, and CV were used to characterize these materials. The XRD data reported the tenorite structure of the CuO and the anatase phase of the TiO2. SEM showed the spherical morphologies for all the CuO-TiO2 NPs, and these were also mesoporous in nature, as depicted by BET. The voltammogram of the CuO-TiO2 30/70 electrode showed a higher response current density compared to the other two samples, suggesting a higher specific capacitance. Upon testing the photocatalytic efficiencies of the CuO-TiO2 nanocomposites against methylene blue (MB), ciprofloxacin (CIP), and sulfisoxazole (SSX), the highest degradation of 94% was recorded for SSX using the CuO-TiO2 30/70 nanocomposites. Hydroxyl radicals were the primary species responsible for the photodegradation of SSX, and the material could be reused once. The most active species in the photodegradation of SSX has been identified as OH•. From this study, it can be noted that the CuO-TiO2 nanocomposites were more selective toward the degradation of antibiotics (sulfisoxazole and ciproflaxin) as compared to dyes (methylene blue).
Open AccessGreen Synthesis of CuO-TiO2 Nanoparticles for the Degradation of Organic Pollutants: Physical, Optical and Electrochemical Properties
CuO-TiO2 nanocomposites were successfully synthesized using the C. benghalensis plant extracts. The effect of the composition of CuO to TiO2 on the morphological, optical, electrochemical, and photodegradation efficiency in the composites was studied. SEM, XRD, UV-vis, FTIR, TGA, BET, and CV were used to characterize these materials. The XRD data reported the tenorite structure of the CuO and the anatase phase of the TiO2. SEM showed the spherical morphologies for all the CuO-TiO2 NPs, and these were also mesoporous in nature, as depicted by BET. The voltammogram of the CuO-TiO2 30/70 electrode showed a higher response current density compared to the other two samples, suggesting a higher specific capacitance. Upon testing the photocatalytic efficiencies of the CuO-TiO2 nanocomposites against methylene blue (MB), ciprofloxacin (CIP), and sulfisoxazole (SSX), the highest degradation of 94% was recorded for SSX using the CuO-TiO2 30/70 nanocomposites. Hydroxyl radicals were the primary species responsible for the photodegradation of SSX, and the material could be reused once. The most active species in the photodegradation of SSX has been identified as OH•. From this study, it can be noted that the CuO-TiO2 nanocomposites were more selective toward the degradation of antibiotics (sulfisoxazole and ciproflaxin) as compared to dyes (methylene blue).
- 1 February 2020
- Published by Elsevier in Journal of Colloid and Interface Science
- Vol. 560, 755-768
Facile control of room temperature nitrogen dioxide gas selectivity induced by copper oxide nanoplatelets
- 1 February 2020
- Published by Elsevier in Journal of Colloid and Interface Science
- Vol. 560, 755-768
Facile control of room temperature nitrogen dioxide gas selectivity induced by copper oxide nanoplatelets