Open AccessKinetic evaluation of methylene blue decolorization by CuO as a Fenton-like catalyst
Author(s) -
Yuant Tiandho,
Fitri Afriani,
Evi J,
Ronado Lingga,
Handoyo Handoyo
Publication year - 2021
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/926/1/012103
Subject(s) - methylene blue , wastewater , catalysis , kinetics , degradation (telecommunications) , chemistry , nuclear chemistry , environmental engineering , photocatalysis , environmental science , organic chemistry , computer science , telecommunications , physics , quantum mechanics
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 H 2 O 2 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.