Journal of Nanomaterials & Molecular NanotechnologyISSN: 2324-8777

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Martin O. Onani Author

KiprotichS@ufs.ac.za

Subjects of specialization
Nanoscience, Nanotubes, Nanomaterials, Nanotechnology, Nanoparticles.

Affiliation
Department of Chemistry, University of the Western Cape, Private Bag X17, Bellville 7535, South Africa

Biography

Synthesis, characterization and anticancer activity of new 2-acetyl-5-methyl thiophene and cinnamaldehyde thiosemicarbazones and their palladium(II) complexes is one of the main research work of Martin O. Onani.

Publications

Research Article Subscription

Effect of Tellurium Concentration of the Solution on the Structural, Optical and Luminescence Properties of Cadmium Telluride Nanoparticles

Author(s):

Sharon Kiprotich, Martin O. Onani, Muzi O. Ndwandwe and Francis B. Dejene

Water-soluble cadmium telluride (CdTe) nanoparticles (NPs) were prepared using L-cystine as a capping agent. The reaction was carried out under basic conditions (at pH=11) and refluxed at 100ºC for 1 h. In this work, different tellurium (Te) concentrations in the solution of L-cystine functionalized CdTe NPs were prepared at low temperature of 100ºC and discussion of its effect was done in detail. The CdTe NPs were analyzed using X-ray diffraction (XRD), ultraviolet-vis and photoluminescence (PL) spectroscopy. Structural parameters estimated by XRD revealed cubic phase of CdTe at lower Te concentrations and hexagonal phase of Te emerging at higher Te concentration. XRD results showed that the NPs consisted of small CdTe nanocrystallites, 3.1-4.5 nm... view more»

DOI: 10.4172/2324-8777.1000245

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