Browsing Faculty of Science & Technology (FST) by Author "e3228aa2-aa76-4de9-b438-4288bf7900ba"
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Atmospheric corrosion studies in Kenya: past, present and future
Onyatta, John O; Yusuf, Amir O; Ooko, Juspher O (University of Nairobi, 2016)Despite the regular inspections and current contingencies made in the HF plant at Necsa, an isolated case where two mild steel vessels leaked HF during operation occurred without warning. The failure of both these vessels ... -
Influence of annealing temperature on some optical and structural properties of Cu2ZnSnS4 deposited by CZT co-electrodeposition coupled with chemical bath technique
Okoth, Obila J; Marina, Mukabi; Domtau, Dinfa H; Onyatta, John (University of Nairobi, 2018)Copper indium gallium selenide (CIGS) is currently most efficient thin film solar technology in use but it is faced with problems of material scarcity and toxicity. An alternative earth abundant and non-toxic materials ... -
Photocatalytic degradation of acid orange ii dye on selected commercial titanium dioxide catalysts
Onyatta, John O; Tum, Patrick K; Kithure, Joyce G.N; Oduor., Frederick D.O (University of Nairobi, 2016)Photocatalytic degradation of acid orange II dye in the presence of UV light was investigated using selected commercial TiO2 as photocatalysts. The objective of this study was to determine the rate of photodegradation of ... -
Validation of the polyacrylic acid/glassy carbon differential pulse anodic stripping voltammetric sensor for simultaneous analysis of lead(ii), cadmium(ii) and cobalt(ii)ions
Oyagi, Moses O.; Onyatta, John O.; Kamau, Geoffrey N; Guto, Peterson M. (University of Nairobi, 2016)Electrochemical sensor validation en sures that the determination procedure employed for a specific test is suitable for its intended use. Accuracy and precision, linearity, range, limits of ...