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A Heterogeneous Peroxymonosulfate Catalyst Built by Fe-Based Metal-Organic Framework for the Dye Degradation Publisher Pubmed



Moazeni M1, 2 ; Hashemian SM3 ; Sillanpaa M4, 5, 6 ; Ebrahimi A1, 7 ; Kim KH8
Authors
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Authors Affiliations
  1. 1. Department of Environmental Health Engineering, School of Health, Isfahan University of Medical Sciences, Isfahan, Iran
  2. 2. Student Research Committee, School of Health, Isfahan University of Medical Sciences, Isfahan, Iran
  3. 3. Department of Electrical Engineering, Faculty of Engineering, University of Isfahan, Isfahan, Iran
  4. 4. Institute of Research and Development, Duy Tan University, Da Nang, 550000, Viet Nam
  5. 5. Faculty of Environment and Chemical Engineering, Duy Tan University, Da Nang, 550000, Viet Nam
  6. 6. Department of Chemical Engineering, School of Mining, Metallurgy and Chemical Engineering, University of Johannesburg, P. O. Box 17011, Doornfontein, 2028, South Africa
  7. 7. Environment Research Center, Research Institute for Primordial Prevention of Non-Communicable Disease, Isfahan University of Medical Sciences, Isfahan, Iran
  8. 8. Department of Civil and Environmental Engineering, Hanyang University, 04763, Seoul, South Korea

Source: Journal of Environmental Management Published:2022


Abstract

The regulatory control on dyes is an important issue, as their discharge into the environment can pose significant risks to human health. MIL-101(Fe) prepared by a solvothermal method was used as a catalyst to generate sulfate (SO4•−) and hydroxyl (HO•) radicals from peroxymonosulfate (PMS) for the treatment of orange G (OG). The structural properties of MIL-101(Fe) were assessed by a number of characterization approaches (e.g., Fourier-transform infrared spectroscopy). The factors controlling the removal of OG were explored by a response surface methodology with central composite design (RSM-CCD) plus adaptive neuro-fuzzy inference system (ANFIS). The synthetized MIL-101(Fe) had uniform octahedral nanocrystals with rough surfaces and porous structures. The maximum catalytic removal efficiency of OG with MIL-101(Fe)/PMS process was 74% (the final concentration of Fe2+ as 0.19 mg/L and reaction rate of 434.2 μmol/g/h). The catalytic removal of OG could be defined by the non-linear kinetic models based on RSM. The OG removal efficiency declined noticeably with the addition of radical scavengers such as ethanol (EtOH) and tert-butanol (TBA) along with some mineral anions. Accordingly, MIL-101(Fe)/PMS is identified as an effective remediation option for the dyes based on advanced oxidation process (AOPs) based on high treatment efficiency at low dosage of low cost catalyst. © 2021 Elsevier Ltd
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