Ni(II) and Pb(II) dithiocarbamate complexes as precursors for the synthesis of HDA-capped NiS and PbS nanoparticles

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dc.contributor.advisorAjibade, P Aen
dc.contributor.authorChintso, Thobanien
dc.date.accessioned2026-08-12T23:53:34Z
dc.date.available2026-08-12T23:53:34Z
dc.date.issued2015en
dc.description.abstractNi(II) and Pb(II) dithiocarbamate complexes were synthesized and characterized by elemental analysis, UV-Vis, FTIR and TGA and some of the Ni(II) complexes and one Pb(II) were further analyzed by 1H-NMR and 13C-NMR spectroscopy. Generally all the dithiocarbamate ligands are soluble in water while the complexes were soluble mostly in solvents such as chloroform, toluene, DMSO and DCM. Based on the elemental analysis, the dithiocarbamate complexes are formulated as four coordinate (tetrahedral or square planar) compounds. However, the FTIR showed that each of the dithiocarbamate ligands acted as bidentate ligand through two sulfur atoms. The TGA of the most complexes showed one major decomposition step to give respective metal sulfide above 200 oC. In this research project, dithiocarbamate complexes were used as single source precursor for the synthesis of metal sulfide nanoparticles. We studied the optical and structural properties of metal sulfide nanoparticles using UV-Vis, photoluminescence (PL), powder X-ray diffraction (XRD), energy dispersive X-ray (EDX), scanning electron microscopy (SEM) and transmission electron microscopy (TEM). The absorption spectra of the metal sulfide nanoparticles are blue shifted in respect to bulk material and they also showed broad emission. The XRD of the NiS nanoparticles were indexed to the cubic and rhombohedral phase, with crystallite sizes of 15 - 18 nm. The XRD of PbS nanoparticles were indexed to the face centered cubic and cubic rock salts, with the crystallite sizes 12 - 18 nm. The TEM images of the metal sulfide nanoparticles showed particles with spherical and rectangular shapes with crystallite sizes 4 - 35 nm.en
dc.formatpdfen
dc.format144 leavesen
dc.identifier.citationChintso, Thobani. 2015en
dc.identifier.othervital:11349en
dc.identifier.otherhttp://hdl.handle.net/10353/d1020201en
dc.identifier.urihttp://hdl.handle.net/20.500.11837/4588
dc.language.isoEnglishen
dc.publisherUniversity of Fort Hareen
dc.publisherFaculty of Science & Agricultureen
dc.rightsUniversity of Fort Hareen
dc.titleNi(II) and Pb(II) dithiocarbamate complexes as precursors for the synthesis of HDA-capped NiS and PbS nanoparticlesen
dc.title.alternativeNi(II) and Pb(II) dithiocarbamate complexes as precursors for the synthesis of HDA-capped NiS and PbS nanoparticlesen
dc.typeThesisen
dc.typeMastersen
dc.typeMSc (Chemistry)en

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