Dr N Magwa

Qualifications

• BSc (NMMU)
• BSc Hons (Rhodes)
• MSc (Rhodes)
• PhD (Rhodes)

Fields of academic interests

• Coordination Chemistry
• Molecular Spectroscopy
• Bioinorganic Chemistry
• Inorganic Polymeric Materials
• Hydrometallurgy and Crystallization

Field of Specialisation

My research interests are broadly centred on the design, synthesis and characterisation of organometallic complexes and inorganic polymeric materials for therapeutic and environmental protection applications. I am also interested in the utilization of the hydrometallurgical processes for the recovery of various metal ions (base metals, heavy metal ions and rare earth elements) from ores

Typical characterisation techniques include Nuclear Magnetic Resonance (NMR), X-Ray Crystallography, Fourier-transform Infrared Spectroscopy (FTIR), Ultraviolet–visible Spectroscopy (UV-vis), Scanning Electron Microscope (SEM) and X-Ray Powder Diffraction (XRD), Potentiometry and HYPERQUAD.

Journal articles

• Reduction crystallization of nickel with hydrazine in the presence of an additive ethylene maleic anhydride; T.P. Mashifana, R. Matshavha, N. Magwa., Procedia Manufacturing, 2019, 35, 649-656.

• Sulphate removal from acid rock drainage using steel slag; F. Ntuli, N.P. Magwa.. IOP Conference Series: Earth and Environmental Science, 2018, 191 (1), 012116.

• The coordination and extractive chemistry of the later 3d transition metals with bis((1R-benzimidazol-2-yl)methyl)sulphide, N.P. Magwa, E. Hosten, G.M. Watkins, Z.R. Tshentu. Journal of Coordination Chemistry, 2013, 66 (1), 114-125.

• An Exploratory Study of Tridentate Amine Extractants: Solvent Extraction and Coordination Chemistry of Base Metals with Bis((1R-benzimidazol-2-yl)methyl)amine; N.P. Magwa, E. Hosten, G.M. Watkins, Z.R. Tshentu, International Journal of Nonferrous Metallurgy, 2012, 1(3), 49-58.

• The separation of nickel (II) from base metal ions using 1-octyl-2-(2′-pyridyl) imidazole as extractant in a highly acidic sulfate medium, A.I. Okewole, N.P. Magwa, Z.R. Tshentu, Hydrometallurgy, 2012, 121, 81-89.

• Sulphate removal from acid drainage using basic oxygen furnace slag, F. Ntuli, N.P.  Magwa, Series: Earth and Environmental Science, 2018, 191, 012116 doi:10.1088/1755-1315/191/1/012116.

• Reduction Crystallization of nickel with hydrazine in the presence of an additive ethylene maleic anhydride, TP Mashifana, R. Matshavha, N. Magwa, Procedia Manufacturing, 2019, 35, 649-656.

Projects

• Design, synthesis and characterization of inorganic polymeric materials for catalysis and environmental applications.

• Comparison of solvent extraction and recrystallization methods in recovering base metals from sulfuric acid medium.