A5089996708- Nanomaterials for catalytic reactions
- Membrane Separation Technologies
- Dendrimers and Hyperbranched Polymers
- Nanocluster Synthesis and Applications
- Graphene and Nanomaterials Applications
- Advanced Nanomaterials in Catalysis
- Catalytic Processes in Materials Science
- Advanced biosensing and bioanalysis techniques
- Recycling and Waste Management Techniques
- Copper-based nanomaterials and applications
- Nanoparticles: synthesis and applications
- Advanced Photocatalysis Techniques
- Magnetic Properties and Synthesis of Ferrites
- Catalysis and Hydrodesulfurization Studies
- TiO2 Photocatalysis and Solar Cells
- MXene and MAX Phase Materials
University of South Africa
2020-2022
University of Johannesburg
2016-2018
Herein we report on the catalytic activity of mesoporous nickel, iron, cerium, cobalt, and manganese oxides prepared using KIT-6 as a hard template via evaporation-assisted precipitation. The metal (MMOs) were characterized used heterogeneous catalysts in reduction 4-nitrophenol (4-Nip) by sodium borohydride (BH4–). Furthermore, polyamidoamide (PAMAM) dendrimers to synthesize gold–palladium nanoalloy particles. size AuPd/PAMAM was found be 3.5 ± 0.8 nm diameter before being immobilized...
In this study, Ag and Pd bimetallic nanoparticles were generated in situ polyethersulfone (PES) dope solutions, membranes fabricated through a phase inversion method. The characterized for various physical chemical properties using techniques such as FTIR, SEM, AFM, TEM, EDS, contact angle measurements. then evaluated their efficiency rejecting EOCs resistance to protein fouling. TEM micrographs showed uniform distribution of Ag/Pd within the PES matrix, while SEM images uniform, fingerlike...
Abstract BACKGROUND The general performance of polymeric membranes is hindered by the build‐up microbial foulants both on surface and inside pores. This justifies inclusion antimicrobial agents within in order to circumvent biofouling process. A nonsolvent‐induced phase separation process was used fabricate following situ reduction silver (Ag) polymer dope solution. Fourier transform infrared, atomic force microscopy (AFM), scanning transmission electron microscopy, drop shape analyzer were...
Abstract Spectrophotometric titrations provide information about the interior of polyamidoamine (PAMAM) dendrimers, and therefore how nanoparticles are encapsulated. In this work, binding studies were performed to determine maximum loading capacities ( N ) hydroxyl terminated G4, G5, G6 PAMAM dendrimers with Cu 2+ ions. The values found via spectrophotometric 16.22, 31.86, 57.36 for G4‐OH, G5‐OH, G6‐OH, respectively. determination capacity was also done using Viva spin filtration, results be...
Abstract Enhancing the catalytic activity of supported nanocatalysts is an effective strategy to mitigate costly catalyst separation processes in many industrial processes. In this study, polysulfone (PS) membranes decorated with in-situ synthesized palladium nanoparticles (PdNPs) were fabricated. The characterised by SEM, XRD, SAXSpace, FTIR, TEM, AFM, contact angle measurements and EDS. Effect different amounts PdNPs on physicochemical properties, water flux, for reduction 4-nitrophenol...