Chun, Jinyoung Lee, Hongshin Lee, Sang-Hyup Hong, Seok-Won Lee, Jaesang Lee, Changha Lee, Jinwoo 2024-01-20T13:33:40Z 2024-01-20T13:33:40Z 2021-09-05 2012-11 0045-6535 https://pubs.kist.re.kr/handle/201004/128697 A magnetite-loaded mesocellular carbonaceous material, Fe3O4/MSU-F-C, exhibited superior activity as both a Fenton catalyst and an adsorbent for removal of phenol and arsenic, and strong magnetic property rendering it separable by simply applying magnetic field. In the presence of hydrogen peroxide, the catalytic process by Fe3O4/MSU-F-C completely oxidized phenol and As(III) under the conditions where commercial iron oxides showed negligible effects. Notably, the decomposition of H2O2 by Fe3O4/MSU-F-C was not faster than those by commercial iron oxides, indicating that hydroxyl radical produced via the catalytic process by Fe3O4/MSU-F-C was used more efficiently for the oxidation of target contaminants compared to the other iron oxides. The homogeneous Fenton reaction by the dissolved iron species eluted from Fe3O4/MSU-F-C was insignificant. At relatively high doses of Fe3O4/MSU-F-C, total concentration of arsenic decreased to a significant extent due to the adsorption of arsenic on the catalyst surface. The removal of arsenic by adsorption was found to proceed via preoxidation of As(III) into As(V) and the subsequent adsorption of As(V) onto the catalyst. (C) 2012 Elsevier Ltd. All rights reserved. English PERGAMON-ELSEVIER SCIENCE LTD Magnetite/mesocellular carbon foam as a magnetically recoverable fenton catalyst for removal of phenol and arsenic Article 10.1016/j.chemosphere.2012.07.046 1 CHEMOSPHERE, v.89, no.10, pp.1230 - 1237 CHEMOSPHERE 89 10 1230 1237 N scie scopus 000310112500011 2-s2.0-84866403339 Environmental Sciences Environmental Sciences & Ecology Article ORDERED MESOPOROUS CARBON DYE ORANGE-II HETEROGENEOUS PHOTODEGRADATION FERROMAGNETIC NANOPARTICLES HYDROGEN-PEROXIDE AQUEOUS-SOLUTIONS IRON-OXIDES OXIDATION WATER DEGRADATION Fenton reaction Water treatment Mesoporous material Heterogeneous catalyst