A5078583355- Transition Metal Oxide Nanomaterials
- ZnO doping and properties
- Nanoparticles: synthesis and applications
- Copper-based nanomaterials and applications
- Gas Sensing Nanomaterials and Sensors
- Supercapacitor Materials and Fabrication
- Quantum Dots Synthesis And Properties
- Conducting polymers and applications
- Graphene research and applications
- Chalcogenide Semiconductor Thin Films
- Ga2O3 and related materials
- Advanced Photocatalysis Techniques
- TiO2 Photocatalysis and Solar Cells
- Solar Thermal and Photovoltaic Systems
- Graphene and Nanomaterials Applications
- Tribology and Lubrication Engineering
- Laser-Ablation Synthesis of Nanoparticles
- Advancements in Battery Materials
- Nuclear Physics and Applications
- Nonlinear Optical Materials Studies
- Advanced Nanomaterials in Catalysis
- Gold and Silver Nanoparticles Synthesis and Applications
- Ion-surface interactions and analysis
- Moringa oleifera research and applications
- Laser Material Processing Techniques
National Research Foundation
2016-2025
University of South Africa
2016-2025
iThemba Laboratory
2013-2024
Northwestern Polytechnical University
2019-2024
University of Agriculture
2024
King Fahd Armed Forces Hospital
2024
National University of Malaysia
2024
University of Nigeria
2021-2023
Council for Scientific and Industrial Research
2008-2022
Graduate School USA
2015-2021
The research work involves the development of better and reliable method for bio-fabrication Zinc oxide nanoparticles through green using Moringa Oleifera extract as an effective chelating agent. electrochemical activity, crystalline structure, morphology, isothermal behavior, chemical composition optical properties ZnO were studied various characterization techniques i.e. Cyclic voltammetry (CV), X-ray powder diffraction (XRD), High resolution transmission electron microscopy (HRTEM),...
The Williamson-Hall (W-H) equation, which has been used to obtain relative crystallite sizes and strains between samples since 1962, is revisited. A modified W-H equation derived takes into account the Scherrer first published in 1918, (which traditionally gives more absolute size prediction) strain prediction from Raman spectra. It found that are on average 2.11 ± 0.01 times smaller than equation. Furthermore plots when compared obtained spectral red-shifts yield factors whose values depend...
Abstract To photo-catalytically degrade RhB dye using solar irradiation, CeO 2 doped TiO nanocomposites were synthesized hydrothermally at 700 °C for 9 hrs. All emission spectra showed a prominent band centered 442 nm that was attributed to oxygen related defects in the -TiO nanocrystals. Two sharp absorption bands 1418 cm −1 and 3323 deformation stretching vibration, bending vibration of OH group water physisorbed , respectively. The photocatalytic activities Ce-TiO nanocrystals...
This study reports on the bio-synthesis and main physical properties of p-type Co3O4 nanoparticles for first time by a completely green chemistry process using Aspalathus linearis's natural extract as an effective chelating agent. Their surface/interface optical are reported. In addition to X-ray diffraction investigations, Raman, infrared well photoelectron spectroscopies confirmed single phase nanoparticles. As their average size can be low ⟨φparticle⟩ ∼3.6 nm, reticular atomic plans under...
Commercial flakes of graphite were prepared into functionalized graphene oxide (GO) by chemical treatment. After the exfoliation and intercalation that formed stable colloidal dispersion in polar aprotic solvent, reduction process was undertaken continuous stirring with hydrazine hydrate. The reduced material characterized X‐ray diffraction (XRD), attenuated total reflectance (ATR) FT‐IR, ultraviolet visible (UV‐vis), atomic force microscopy (AFM) Raman spectroscopy which confirm oxidation sheet.
Sageretia thea (Osbeck.) was used as an effective chelating agent for the biosynthesis of iron oxide nanoparticles (IONP's) and extensively characterized through XRD, FTIR, Raman spectroscopy, Energy Dispersive Spectroscopy, HR-SEM/TEM SAED. Antibacterial assays against five human pathogenic bacterial strains were carried out minimum inhibitory concentrations calculated. Pseudomonas aeruginosa (MIC: 7.4 µg/mL) most susceptible strain to biosynthesized IONPs. All fungal showed susceptibility...
Cobalt oxide nanoparticles were successfully biosynthesized by complete green process using aqueous leaf extracts of Sageretia thea as chelating agent. Diverse techniques applied for characterization. Antibacterial (with and without UV illumination), antileishmanial, antioxidant enzyme inhibition applications assessed, while freshly isolated macrophages red blood cells used biocompatibility studies. Good antibacterial nature enhancement bactericidal upon modulation is reported....