Open AccessComparative study of Fe2+/H2O2/CuO/Vis and Fe2+/H2O2/CuO for phenol removal in batik wastewater under visible light irradiation
Author(s) -
Cherly Firdharini,
Tien Setyaningtyas,
Kapti Riyani
Publication year - 2021
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1918/3/032004
Subject(s) - phenol , radical , hydrogen peroxide , photocatalysis , reagent , decomposition , visible spectrum , nuclear chemistry , chemistry , fenton's reagent , hydroxyl radical , wastewater , irradiation , phenols , ion , inorganic chemistry , catalysis , materials science , organic chemistry , fenton reaction , waste management , physics , optoelectronics , nuclear physics , engineering
Phenols contained in batik wastewater are harmful organic compounds. These compounds must go through proper treatment before being discharged into the environment. Therefore, phenol needs to be degraded before discharged into the environment. Fenton reagent which is made of hydrogen peroxide (H 2 O 2 ) and Fe 2+ ion can form hydroxyl radicals (•OH). This radical can degrade a compound through an oxidation process. CuO is a semiconductor photocatalyst with a narrow bandgap that can be activated under visible light irradiation. The purpose of this study was to determine the effect of visible light on the decomposition process of phenol in batik wastewater. The research was conducted by varying the concentration of H 2 O 2 , FeSO 4 and CuO weight, and pH of the solution. The result showed that visible light can accelerate and increase the formation of hydroxyl radicals so the phenol compound was optimally degraded. The decrease of phenol content in batik wastewater using Fe 2+ /H 2 O 2 /CuO/Vis with the addition of H 2 O 2 100 ppm, FeSO 4 1.0 g, CuO 1.0 g, a pH of 3, and irradiated with visible light for 5 hours resulted in the decrease of phenol content was 86.77%.