G
Gugu H. Mhlongo
Researcher at University of the Free State
Publications - 54
Citations - 1756
Gugu H. Mhlongo is an academic researcher from University of the Free State. The author has contributed to research in topics: Photoluminescence & Scanning electron microscope. The author has an hindex of 22, co-authored 49 publications receiving 1305 citations. Previous affiliations of Gugu H. Mhlongo include Council for Scientific and Industrial Research & Council of Scientific and Industrial Research.
Papers
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Journal ArticleDOI
Tailoring the sensing properties of microwave-assisted grown ZnO nanorods: Effect of irradiation time on luminescence and magnetic behaviour
Katekani Shingange,Katekani Shingange,Gugu H. Mhlongo,David E. Motaung,Odireleng M. Ntwaeaborwa +4 more
TL;DR: In this article, the defect-related properties affect the sensing response of the ZnO nanostructures and a broad visible emission band related to Zn i and V O surface defects was observed.
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Structural and optical properties of ZnO nanostructures grown by aerosol spray pyrolysis: Candidates for room temperature methane and hydrogen gas sensing
David E. Motaung,Gugu H. Mhlongo,Ioannis Kortidis,S.S. Nkosi,S.S. Nkosi,Gerald F. Malgas,Bonex W. Mwakikunga,Suprakas Sinha Ray,George Kiriakidis,George Kiriakidis +9 more
TL;DR: In this article, the authors reported on the synthesis of ZnO films by aerosol spray pyrolysis method at different deposition times, and the surface morphology, crystal structure and the cross-sectional analysis of the prepared ZnOs were characterized by X-ray diffraction (XRD), focused ion beam scanning electron microscopy (FIB-SEM), atomic force microscopy, and high resolution transmission electron microscope (HR-TEM).
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Hierarchically Porous Cu-, Co-, and Mn-Doped Platelet-Like ZnO Nanostructures and Their Photocatalytic Performance for Indoor Air Quality Control
Dimitra Papadaki,Gugu H. Mhlongo,David E. Motaung,David E. Motaung,S.S. Nkosi,Katerina Panagiotaki,Emmy Christaki,Margarita N. Assimakopoulos,Vassileios C. Papadimitriou,Federico Rosei,George Kiriakidis,George Kiriakidis,Suprakas Sinha Ray,Suprakas Sinha Ray +13 more
TL;DR: Results showed that the synergetic effects of variation in morphology, surface defects, that is, VO, high specific surface areas, and porosity played a significant role in modulating the photocatalytic activity of ZnO nanostructures.
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Luminescence Dependence of Pr3+ Activated SiO2 Nanophosphor on Pr3+ Concentration, Temperature, and ZnO Incorporation
Gugu H. Mhlongo,Gugu H. Mhlongo,Odireleng M. Ntwaeaborwa,H.C. Swart,Robin E. Kroon,Piotr Solarz,Witold Ryba-Romanowski,K.T. Hillie,K.T. Hillie +8 more
TL;DR: In this paper, green-emitting ZnO nanoparticles were successfully embedded in Pr3+-doped SiO2 by a sol-gel method resulting in a red emitting ZnNO·SiO2:Pr3+ nanocomposite phosphor.
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Design of porous p-type LaCoO3 nanofibers with remarkable response and selectivity to ethanol at low operating temperature
TL;DR: In this paper, the fabrication of remarkably selective and sensitive LaCoO3 nanofibers (NFs) based sensors obtained after annealing at different temperatures of 550, 650, and 700 °C.