• Synthesis, characterisation, and application of conjugated polyene modified TiO2 photocatalysts for the treatment of selected pharmaceuticals in water 

  Awofiranye, Olayinka Oladimeji Samuel (Vaal University of Technology, 2020)

  This research has investigated the effects of conjugation on the visible light absorption capacity of polyene modified TiO2 nanoparticles as well as the efficiency of these nanoparticles for the mineralisation of acetaminophen ...
• An adsorptive study of Pb(II), Cr(VI) ions and methylene blue dye by treated and untreated coral limestones in aqueous solution 

  Nkutha, Cynthia Sibongile (Vaal University of Technology, 2021)

  For centuries the contamination of surface water has been problematic, especially in third world countries whereby socio-economic issues are prevalent. With the development of various technologies for surface water ...
• Adsorption studies of toxic metal ions (Co(II), Ni(II), Cu(II), Cr(VI) and Pb(II)) and methylene blue using black cumin (Nigella sativa L.) seeds 

  Thabede, P. M. (Vaal University of Technology, 2021)

  High levels of pollutants in water are found to have poisonous effects on human health. Due to increasing awareness about the environment and strict environmental regulations, wastewater treatment has become a very important ...
• Novel nanostructured ternary metal oxide composite for sequestration of trace metals from simulated aqueous solutions. 

  Kupeta, Albert Jerry Kafushe (Vaal University of Technology, 2020-06)

  A novel low-cost ternary Mn-Fe-Cu (MFC) metal oxide nanocomposite adsorbent was fabricated using facile co-precipitation method and successfully applied for the sequestration of Cr(VI) and As(III) from simulated aqueous ...
• Surface-decorated macadamia (Macadamia sp.) nutshells for the detoxification of chromium(VI) polluted water. 

  Moyo, Malvin (Vaal University of Technology, 2021-02)

  Driven by the need for sustainably sourced catalysts and the use of reaction systems that generate environmentally benign by-products, the present study aimed to deposit stable, dispersed palladium (Pd) nanoparticles on ...
• The preparation and catalytic activity of iron oxide silica nanofibers for the Fenton degradation of methylene blue. 

  Mthombo, Phindile (Vaal University of Technology, 2020)

  Several industries utilize species of synthetic dyes that are found in their wastewater, which is passed out in the environment. Methylene blue is one of the organic dyes that causes water pollution. It causes damage to ...
• Synthesis and characterization of undoped and Ag doped TiO2, ZnO and ZnS nanoparticles for the photocatalytic degradation of 2-chlorophenol under UV irradiation. 

  Onkani, Shirley Priscilla (Vaal University of Technology, 2019-07-08)

  Phenol, 2-chlorophenol (2-CP) is used in the manufacture of several chemical compounds including other chlorophenols, dyes, dentifrice and pesticides. The usage of these chemicals results in the discharge of 2-CP that is ...
• Effect of preparation parameters of iron oxide nanoparticles on the fenton catalytic activity for the degradation of dye. 

  Matlhatse, Malatji (Vaal University of Technology, 2021-03)

  Water polluted by recalcitrant organics, such as methylene blue (MB), can be treated with the Fenton reaction. The Fenton reaction degrades the pollutants through catalytic oxidation. Unsupported iron oxide nanoparticles ...
• Photodegradation of selected pharmaceuticals using magnetic-carbon dot loaded on different TiO2 nanostructures. 

  Moshoeu, Edna Dimakatso (Vaal University of Technology, 2020-11)

  To replace the conventional wastewater treatment technology, photocatalysis has the best potential due to its utilization of visible light to photodegrade organic and inorganic contaminants. However, agglomeration of ...
• The effect of carboxylic acids on the size and shape of Co3O4 nanoparticles: used as capping molecules and ligands in the preparation method 

  Thabede, P. M. (Vaal University of Technology, 2017-09-12)

  This study reports the synthesis and characterization of cobalt oxide nanoparticles using a microwave technique and chemical precipitation with oxidation method. Cobalt complexes were prepared using carboxylic acids (acetic ...
• Thiourea-urea metal (Cd & Ni) chalcogenide (O & S) complexes for the synthesis and characterization of metal chalcogenide nanoparticles 

  Masangane, Tankiso (Vaal University of Technology, 2018)

  The understanding of the fundamental properties and potential use of semiconductor materials in nanotechnology has stimulated the interest of many researchers. Coordination compounds containing ligands with chalcogenide ...
• Antimicrobial activity and dye photodegradation of titanium dioxide nanoparticles immobilized on polyacrylonitrile-cellulose acetate polymer blended nanofibers. 

  Nkabinde, Sibongile Chrestina (Vaal University of Technology, 2019)

  Electrospinning is a method that has gained more attention due to its capability in spinning a wide variety of polymeric fibers and nanoparticles embedded in polymer fibers. Polymer blending has been considered the most ...
• Biodiesel Production by Transesterification of Waste Cooking Oil Using Modified Attapulgite. 

  Mabungela, Ntandokazi (Vaal University of Technology, 2019-10)

  Biodiesel has an ability to solve the problem associated with the use of fossil fuels as a source of energy. The aim of this study was to produce biodiesel from waste cooking oil (WCO) by transesterification, catalysed ...
• Organic acid coated magnetic nanparticles as adsorbent for organic pollutants in aqueous solution. 

  Masuku, Makhosazana Nancy (2019-03)

  Benzene, toluene and xylene (BTX) are water pollutants that appear very often in chemical and petrochemical wastewaters due to gasoline leakage from storage tanks and pipelines. These BTX compounds can cause adverse health ...
• Antimicrobial activity of synthesized copper chalcogenides nanoparticles and plant extracts. 

  Mbewana, Nokhanyo (2019-03)

  Chemical precipitation method is the most widely used of all methods for preparing good quality semiconductor nanoparticles. Several conditions are optimized for producing the desired size and shape of particles. The ...
• The use of bimetallic heterogeneous oxide catalysts for the Fenton reaction 

  Mgedle, Nande (Vaal University of Technology, 2019)

  Water contaminated with non-biodegradable organics is becoming increasing problematic as it has a hazardous effect on human health and the aquatic environment. Therefore, the removal of organic contaminants is of importance ...
• Synthesis and characterization of graphene and carbon nanotubes for removal of heavy metals from water 

  Thema, Force Tefo (Vaal University of Technology, 2012-06)

  The commercial flake graphite was prepared into functionalized graphite oxide (GO) by adopted chemical treatment. After the exfoliation and intercalation of graphite into functionalized graphene oxide that formed stable ...
• Preparation, modification and characterization of activated carbon derived from Macadamia nutshells and its adsorption rate and capacity for Au(CN)2- compared to commercially prepared coconut shells 

  Tsolele, Refiloe (Vaal University of Technology, 2017-09)

  Activated carbons have been produced from various carbonaceous source materials including nutshells, peat, wood, coir, lignite, coal and petroleum pitch and the produced carbons have been used for adsorption of inorganic ...
• Preparation and characterization of Manganese doped iron oxide magnetic nanoparticles coated pine cone powder and its applications in water treatment 

  Ouma, Immaculate Linda Achiengꞌ (2019-03)

  Trivalent arsenic (As(III)) and hexavalent chromium (Cr(VI)) toxicity have necessitated a great deal of research into the remediation of contaminated water. The techniques applied including oxidation, coagulation-flocculation ...
• Effect of size and shape of cobalt oxide nanoparticles on the fenton catalytic activity. 

  Kganyago, Semakaleng Vivian (2019-01)

  Water is a limited resource and pollution has become an increasing problem due to industrialization. Aromatic organic pollutants are resistant to biodegradation, and thus chemical methods like the Fenton reaction is required ...

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