• Green synthesis of copper and silver nanoparticles and their antimicrobial activity 

  Nate, Zondi (Vaal University of Technology, 2018-02)

  The present study includes the use of a green synthetic method to prepare copper and silver nanoparticles using chitosan, aqueous extracts of Camellia sinensis, Combretum molle and Melia azedarach linn leaves. This study ...
• Reduction of ferric and ferrous compounds in the presence of graphite using mechanical alloying 

  Moloto, Ledwaba Harry (Vaal University of Technology, 2011-05)

  Many oxidic iron compounds—iron oxides; oxy-hydroxides and hydroxides—not only play an important role in a variety of disciplines but also serve as a model system of reduction and catalytic reactions. There are more than ...
• Synthesis and characterization of pine cone carbon supported iron oxide catalyst for dye and phenol degradation 

  Mmelesi, Olga Kelebogile (Vaal University of Technology, 2017-06)

  Fenton oxidation is classified into two processes, homogeneous and heterogeneous. Homogeneous Fenton oxidation process, have been shown to be efficient in the degradation of organic pollutants. However, it was shown to ...
• Synthesis, characterization and application of a novel biosorbent-magnetic nanomaterial cross-linked with cyclodextrin using epichlorohydrin and hexamethylene diisocyanate as adsorbents for heavy metals and organics 

  Pholosi, Agnes (Vaal University of Technology, 2019-03)

  In the present era of water resources scarcity, efficient treatment of wastewater is a major prerequisite especially for growing economy. Numerous approaches have been studied for the development of cheaper and more effective ...
• The Photocatalytic degradation of selected phenolic compounds and biological contaminations in the Vaal River in mitigation of fouling of specific polymer membranes 

  Kotlhao, Kate (2019-04)

  Water quality from surface sources is fast deteriorating due to pollution from organic compounds. Among the organic compounds are chlorophenols, which are described as priority pollutants because of their detrimental ...
• Sorption of selected heavy metal ions from aqueous solutions by mango seed shell derived sorbents 

  Moyo, Malvin (2017-03-11)

  ii Abstract The use of biosorption to complement conventional water treatment techniques has gained widespread appeal partly due to the abundance of waste materials that can be used as low cost biosorbents. However, ...
• Isolation and characterization of bioactive compound from Combretum erythrophyllum leaf extracts 

  Ledwaba, I.P (Vaal University of Technology, 2012-08)

  Combretum erythrophyllum has been used for medicinal purposes and several studies have been carried out to investigate the bioactive compounds present in the leaves of this plant. The World Health Organization reported ...
• Synthesis and characterization of substituted dithiocarbamates ligands and complexes as a source of metal (Pb, Ni & Co) sulphide nanoparticles 

  Thangwane, Selaelo Christabel (Vaal University of Technology, 2017)

  Lead, nickel and cobalt dithiocarbamates complexes were synthesized using methanol and water as solvents. All complexes were refluxed at 60 °C, cooled at room temperature, washed with methanol to remove the impurities and ...
• Development of a simple technique for selective removal of cesium in wastewater in the presence of mixed alkali metals 

  Pholosi, Agnes (Vaal University of Technology, 2012-08)

  Amongst treatment technologies, adsorption is rapidly gaining prominence because it can remove metal pollutants at low concentrations, economical, ease of operation, and the adsorbent can be regenerated for reuse. This ...
• Competitive biosorption of a mixture of cationic dyes from a multicomponent solution using modified pine cone powder 

  Ngema, Silindile Lucia (Vaal University of Technology, 2012-07)

  The biosorption of methyl violet and methylene blue onto modified pine cone powder was studied. Single and binary component systems studies were carried out for the biosorption of methyl violet and methylene blue onto raw, ...
• Method development and Validation for the determination of selected Polycyclic Aromatic Hydrocarbons (PAHs) in water by Solid Phase Extraction and High Performance Liquid Chromatography 

  Xoliswa, Madlanga (Vaal University of Technology, 2014-02-12)

  Polycyclic Aromatic Hydrocarbons (PAHs) are one of the pollutants in the environment. They are organic compounds that consist of more than one aromatic ring (Kanchanamayoon & Tatrahun 2008). Due to less information forthcoming ...
• Impact of metallurgical industries on water 

  Matsie, Simon Sello (Vaal University of Technology, 2012-07)

  The increase in industrial activities has contributed towards an increase in environmental pollution problems. Many ecosystems have deteriorated as a result of an accumulation of pollutants including heavy metals contained ...
• Correlation of saliva and serum antibody titre response to pneumococcal capsular polysaccharides 

  Madimabe, Metsekae Richard (Vaal University of Technology, 2017-10)

  Background: Infants and young children under the age of 2 years are vulnerable to Streptococcus pneumoniae infections, especially those who are born in developing countries. Antibiotic therapy was an effective treatment ...
• Thin film deposition of metal sulfide and metal oxide layers with and without polymer intercalation by using chemical bath deposition technique 

  Chiloane, M.H (Vaal University of Technology, 2017)

  A well adherent single layer thin film of zinc oxide (ZnO), zinc sulfide (ZnS), cadmium oxide (CdO) and cadmium sulfide (CdS) has been deposited on silica glass substrates from basic baths containing zinc acetate, cadmium ...
• Modification of glassy carbon electrode (GCE) with prussian blue as a mediator on carbon nanotube materials through sequential deposition 

  Abdullahi Mohamed, Farah (Vaal University of Technology, 2012-08)

  Prussian blue (PB) nanoparticles were synthesized from FeCl3.6H2O, K4[Fe(CN)6].3H2O, and from Fe(NO3)3.9H2O and K4[Fe(CN)6].3H2O, and then characterized by Fourier transform infrared (FT-IR), Ultraviolet-visible spectroscopy, ...
• X-ray spectroscopic method development for quantitative analysis of manganese ore in the Kalahari basin 

  Bodiba, A.L (Vaal University of Technology, 2016-11)

  Manganese is a crucial element in the manufacturing of steel, which in turn is an essential material in many industries including construction and transportation. Its use in the steel making process results in increased ...
• Preparation of chemically modified Macadamia nutshells for adsorptive removal of selected heavy metals 

  Ntuli, Themba Dominic (Vaal University of Technology, 2017-10)

  The abundance of agricultural waste materials has led to its use as adsorbents for trace metal adsorption. The raw Macadamia nutshell (RMN) powder was treated with a hydrochloric acid solution to obtain acid modified ...
• The dissolution of limestone, coal fly ash and bottom ash in wet flue gas desulphurization 

  Koech, Lawrence (2015-03)

  Strict environmental regulation on flue gas emission has led to the implementation of FGD technologies in power stations. Wet FGD technology is commonly used because it has high SO2 removal efficiency, high sorbent utilization ...
• Screening of substituted pyrazolone and pyrazole as ligands with palladium precursors in the Heck reaction 

  Bout, Wanda (2015-03)

  The arylation and alkenylation of alkenes under the influence of a palladium catalyst, commonly referred to as the Heck reaction, has been extensively exploited by synthetic chemists since its debut in the late 1960’s. A ...
• Treatment of process water at Dense Media Separation (DMS) Powders Industry using selected membrane processes 

  Mosia, Mmankaeya Elsie (2015-07)

  There is huge concern in the mining and industries to manage wastewater prior to discharge into the environment. It is generally cheaper and cost reducing for industries to treat its own wastewater before discharging to ...

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