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Sulfate radical-induced degradation of Acid Orange 7 by a new magnetic composite catalyzed peroxymonosulfate oxidation process.
J Hazard Mater. 2014 Aug 30; 279:476-84.JH

Abstract

We synthesized a novel magnetic composite, Fe3O4/Cu(Ni)Cr-LDH, as a heterogeneous catalyst for the degradation of organic dyes in the solution using sulfate radical-based advanced oxidation processes. The physicochemical properties of the composite synthesized via two-step microwave hydrothermal method were characterized by several techniques, such as X-ray diffraction (XRD), inductively coupled plasma (ICP), transmission electron microscopy (TEM) and vibrating sample magnetometer (VSM). The degradation tests were performed at 25°C with Acid Orange 7 (AO7) initial concentration of 25mg/L and AO7/peroxymonosulfate (PMS) molar ratio of 1:10, which showed that the complete degradation by Fe3O4/Cu1.5Ni0.5Cr-LDH could be achieved and the mineralization rate could reach 46%. PMS was activated by Cu (II) and Fe (II/III) of Fe3O4/Cu(Ni)Cr-LDH to generate sulfate radicals (SO4(-)). Subsequently, the organic functional groups of AO7 molecules were destroyed by sulfate radicals (SO4(-)), inducing the degradation of AO7. Moreover, the catalytic behavior of the catalysts could be reused five times. Therefore, our work suggested that the Fe3O4/Cu(Ni)Cr-LDH composite could be applied widely for the treatment of organic dyes in wastewater.

Authors+Show Affiliations

School of Environmental and Chemical Engineering, Shanghai University, No. 99 Shangda Road, Shanghai 200444, PR China.School of Environmental and Chemical Engineering, Shanghai University, No. 99 Shangda Road, Shanghai 200444, PR China.School of Environmental and Chemical Engineering, Shanghai University, No. 99 Shangda Road, Shanghai 200444, PR China.Department of Earth and Environmental Engineering, Columbia University, West 120th Street, New York, NY 10027, USA.School of Environmental and Chemical Engineering, Shanghai University, No. 99 Shangda Road, Shanghai 200444, PR China. Electronic address: grqian@shu.edu.cn.

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

25103453

Citation

Chen, Dan, et al. "Sulfate Radical-induced Degradation of Acid Orange 7 By a New Magnetic Composite Catalyzed Peroxymonosulfate Oxidation Process." Journal of Hazardous Materials, vol. 279, 2014, pp. 476-84.
Chen D, Ma X, Zhou J, et al. Sulfate radical-induced degradation of Acid Orange 7 by a new magnetic composite catalyzed peroxymonosulfate oxidation process. J Hazard Mater. 2014;279:476-84.
Chen, D., Ma, X., Zhou, J., Chen, X., & Qian, G. (2014). Sulfate radical-induced degradation of Acid Orange 7 by a new magnetic composite catalyzed peroxymonosulfate oxidation process. Journal of Hazardous Materials, 279, 476-84. https://doi.org/10.1016/j.jhazmat.2014.06.004
Chen D, et al. Sulfate Radical-induced Degradation of Acid Orange 7 By a New Magnetic Composite Catalyzed Peroxymonosulfate Oxidation Process. J Hazard Mater. 2014 Aug 30;279:476-84. PubMed PMID: 25103453.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Sulfate radical-induced degradation of Acid Orange 7 by a new magnetic composite catalyzed peroxymonosulfate oxidation process. AU - Chen,Dan, AU - Ma,Xiaolong, AU - Zhou,Jizhi, AU - Chen,Xi, AU - Qian,Guangren, Y1 - 2014/06/11/ PY - 2014/04/09/received PY - 2014/06/03/revised PY - 2014/06/04/accepted PY - 2014/8/9/entrez PY - 2014/8/12/pubmed PY - 2015/6/6/medline KW - Acid Orange 7 KW - Fe(3)O(4)/layered double hydroxide KW - Oxidative degradation KW - Peroxymonosulfate KW - Sulfate radicals SP - 476 EP - 84 JF - Journal of hazardous materials JO - J Hazard Mater VL - 279 N2 - We synthesized a novel magnetic composite, Fe3O4/Cu(Ni)Cr-LDH, as a heterogeneous catalyst for the degradation of organic dyes in the solution using sulfate radical-based advanced oxidation processes. The physicochemical properties of the composite synthesized via two-step microwave hydrothermal method were characterized by several techniques, such as X-ray diffraction (XRD), inductively coupled plasma (ICP), transmission electron microscopy (TEM) and vibrating sample magnetometer (VSM). The degradation tests were performed at 25°C with Acid Orange 7 (AO7) initial concentration of 25mg/L and AO7/peroxymonosulfate (PMS) molar ratio of 1:10, which showed that the complete degradation by Fe3O4/Cu1.5Ni0.5Cr-LDH could be achieved and the mineralization rate could reach 46%. PMS was activated by Cu (II) and Fe (II/III) of Fe3O4/Cu(Ni)Cr-LDH to generate sulfate radicals (SO4(-)). Subsequently, the organic functional groups of AO7 molecules were destroyed by sulfate radicals (SO4(-)), inducing the degradation of AO7. Moreover, the catalytic behavior of the catalysts could be reused five times. Therefore, our work suggested that the Fe3O4/Cu(Ni)Cr-LDH composite could be applied widely for the treatment of organic dyes in wastewater. SN - 1873-3336 UR - https://www.unboundmedicine.com/medline/citation/25103453/Sulfate_radical_induced_degradation_of_Acid_Orange_7_by_a_new_magnetic_composite_catalyzed_peroxymonosulfate_oxidation_process_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0304-3894(14)00461-0 DB - PRIME DP - Unbound Medicine ER -