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Received March 14, 2022
Accepted May 10, 2022
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This is an Open-Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/bync/3.0) which permits
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Destruction of oxytetracycline using a microwave-assisted fused TiO2 photocatalytic oxidation system
Department of Environmental Engineering, Sunchon National University, Sunchon 57922, Korea 1School of Environmental Engineering, University of Seoul, Seoul 02504, Korea
jsc@sunchon.ac.kr
Korean Journal of Chemical Engineering, December 2022, 39(12), 3369-3376(8), 10.1007/s11814-022-1169-1
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Abstract
We developed a novel and efficient degradation process for oxytetracycline (OTC), an antibiotic that remains in the aquatic environment and affects humans and animals. OTC was decomposed by applying a fusion TiO2 photocatalytic oxidation process adding microwaves, and various unit technologies and their fusion effects were investigated. As the microwave power increased, the decomposition efficiency increased, and the highest decomposition rate was shown in the neutral pH reaction solution. The decomposition rate was greatly increased by the addition of hydrogen peroxide, and it showed a synergistic effect that the decomposition efficiency was doubled by fusion with other processes. Eleven intermediate products of OCT decomposition were detected by liquid chromatography0mass spectrometry; CO2, H2O, NH4 +, and NO3 by active oxidizing species, such as OH radicals generated by the microwave-assisted fused TiO2 photocatalytic oxidation process were mineralized.
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