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Catalytic degradation of Acid Orange 7 by manganese oxide octahedral molecular sieves with peroxymonosulfate under visible light irradiation.
J Hazard Mater. 2015 Mar 21; 285:356-65.JH

Abstract

In this paper, the photodegradation of Acid Orange 7 (AO7) in aqueous solutions with peroxymonosulfate (PMS) was studied with manganese oxide octahedral molecular sieves (OMS-2) as the catalyst. The activities of different systems including OMS-2 under visible light irradiation (OMS-2/Vis), OMS-2/PMS and OMS-2/PMS/Vis were evaluated. It was found that the efficiency of OMS-2/PMS was much higher than that of OMS-2/Vis and could be further enhanced by visible light irradiation. The catalyst also exhibited stable performance for multiple runs. Results from ESR and XPS analyses suggested that the highly catalytic activity of the OMS-2/PMS/Vis system possible involved the activation of PMS to sulfate radicals meditated by the redox pair of Mn(IV)/Mn(III) and Mn(III)/Mn(II), while in the OMS-2/PMS system, only the redox reaction between Mn(IV)/Mn(III) occurred. Several operational parameters, such as dye concentration, catalyst load, PMS concentration and solution pH, affected the degradation of AO7.

Authors+Show Affiliations

School of Environmental Engineering, Wuhan Textile University, Wuhan 430073, China.School of Environmental Engineering, Wuhan Textile University, Wuhan 430073, China.School of Environmental Engineering, Wuhan Textile University, Wuhan 430073, China.School of Environmental Engineering, Wuhan Textile University, Wuhan 430073, China.School of Environmental Engineering, Wuhan Textile University, Wuhan 430073, China.School of Environmental Engineering, Wuhan Textile University, Wuhan 430073, China.School of Chemistry and Chemical Engineering, Wuhan Textile University, Wuhan 430073, China. Electronic address: lixxwh@163.com.

Pub Type(s)

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

Language

eng

PubMed ID

25528234

Citation

Duan, Lian, et al. "Catalytic Degradation of Acid Orange 7 By Manganese Oxide Octahedral Molecular Sieves With Peroxymonosulfate Under Visible Light Irradiation." Journal of Hazardous Materials, vol. 285, 2015, pp. 356-65.
Duan L, Sun B, Wei M, et al. Catalytic degradation of Acid Orange 7 by manganese oxide octahedral molecular sieves with peroxymonosulfate under visible light irradiation. J Hazard Mater. 2015;285:356-65.
Duan, L., Sun, B., Wei, M., Luo, S., Pan, F., Xu, A., & Li, X. (2015). Catalytic degradation of Acid Orange 7 by manganese oxide octahedral molecular sieves with peroxymonosulfate under visible light irradiation. Journal of Hazardous Materials, 285, 356-65. https://doi.org/10.1016/j.jhazmat.2014.12.015
Duan L, et al. Catalytic Degradation of Acid Orange 7 By Manganese Oxide Octahedral Molecular Sieves With Peroxymonosulfate Under Visible Light Irradiation. J Hazard Mater. 2015 Mar 21;285:356-65. PubMed PMID: 25528234.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Catalytic degradation of Acid Orange 7 by manganese oxide octahedral molecular sieves with peroxymonosulfate under visible light irradiation. AU - Duan,Lian, AU - Sun,Binzhe, AU - Wei,Mingyu, AU - Luo,Shilu, AU - Pan,Fei, AU - Xu,Aihua, AU - Li,Xiaoxia, Y1 - 2014/12/10/ PY - 2014/08/01/received PY - 2014/11/13/revised PY - 2014/12/09/accepted PY - 2014/12/22/entrez PY - 2014/12/22/pubmed PY - 2015/10/23/medline KW - Acid Orange 7 KW - Degradation KW - OMS-2 KW - Peroxymonosulfate KW - Photocatalysis SP - 356 EP - 65 JF - Journal of hazardous materials JO - J Hazard Mater VL - 285 N2 - In this paper, the photodegradation of Acid Orange 7 (AO7) in aqueous solutions with peroxymonosulfate (PMS) was studied with manganese oxide octahedral molecular sieves (OMS-2) as the catalyst. The activities of different systems including OMS-2 under visible light irradiation (OMS-2/Vis), OMS-2/PMS and OMS-2/PMS/Vis were evaluated. It was found that the efficiency of OMS-2/PMS was much higher than that of OMS-2/Vis and could be further enhanced by visible light irradiation. The catalyst also exhibited stable performance for multiple runs. Results from ESR and XPS analyses suggested that the highly catalytic activity of the OMS-2/PMS/Vis system possible involved the activation of PMS to sulfate radicals meditated by the redox pair of Mn(IV)/Mn(III) and Mn(III)/Mn(II), while in the OMS-2/PMS system, only the redox reaction between Mn(IV)/Mn(III) occurred. Several operational parameters, such as dye concentration, catalyst load, PMS concentration and solution pH, affected the degradation of AO7. SN - 1873-3336 UR - https://www.unboundmedicine.com/medline/citation/25528234/Catalytic_degradation_of_Acid_Orange_7_by_manganese_oxide_octahedral_molecular_sieves_with_peroxymonosulfate_under_visible_light_irradiation_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0304-3894(14)00998-4 DB - PRIME DP - Unbound Medicine ER -