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Title: Photocatalytic Degradation of Azo and Rhodamine Dyes Using Copper (II) Oxide Nanoparticles
Authors: Mbu, Etchu. E 
Dodoo-Arhin, David 
Ntwampe, Seteno Karabo Obed 
Malenga, Edward 
Fosso-Kankeu, E. 
Keywords: Azo dye;CuO;Nanoparticles;Photocatalysis;Rhodamine dye
Issue Date: 2018
Publisher: North-West University (NWU) and Eminent Association of Pioneers (EAP)
Series/Report no.: ;5
Conference: 10th Int'l Conference on Advances in Science, Engineering, Technology & Healthcare (ASETH-18) Nov. 19-20, 2018 Cape Town (South Africa) 
Abstract: Fresh water pollution by dyes from various industries is raising a lot of concern lately. Despite their well-known toxicity to humans, azo dyes make up over half of the used dye population. Rhodamines are also a well-used class of dyes in industry. This study employed a cost effective, energy efficient, environmentally benign method to degrade Methyl Orange (MeO), Methylene Blue (MB) and Rhodamine B (RhB) dyes. The photocatalyst used was copper (II) oxide (CuO) nano-sized particles synthesised from CuSO4 .5H2O, Cu(NO3 )2 .3H2O and NaOH via a simple solution route with neither a catalyst, template nor a surfactant. The nanoparticles were characterised and used for the photocatalytic degradation of the above dyes in the presence of H2O2 . The CuO nanoparticles synthesised from both copper precursors were found to degrade all dyes effectively over the same degradation time interval, recording an overall minimum degradation efficiency of 85 % and maximum of 99 %.
ISBN: 9788193836521
Appears in Collections:Appsc - Conference Proceedings

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