Y. Tiandho, F. Afriani, J. Evi, R. Lingga, Handoyo
The presence of dyes in wastewater is one of the main problems in wastewater treatment. Wastewater containing dyes can damage the ecosystem because it can block sunlight into the water and is often accompanied by toxic materials. This paper proposes an alternative method to decolorize dyes in water using CuO as a Fenton-like catalyst, especially for wastewater contaminated by methylene blue dye. The Fenton method is an advanced oxidation process method with a radical group of H2O2 acting as the primary decolorizing agent. By measuring the concentration using a UV-Vis spectrophotometer, we found that the proposed decolorization method effectively degraded the color of methylene blue. To understand the decolorization mechanism, we investigated the reaction kinetics of the decolorization process. We found that compared to the pseudo-first-order and second-order reaction kinetics models, the BMG model had higher accuracy and conformed to the color concentration degradation curve. © 2021 Published under licence by IOP Publishing Ltd.
Department of Physics, Universitas Bangka Belitung, Indonesia; Department of Biology, Universitas Bangka Belitung, Indonesia; Geophysical Engineering, Institut Teknologi Sumatera, Indonesia; Facultat de Ciencies de la Terra, Universitat de Barcelona, Spain
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