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Activation of peroxymonosulfate by Fe-N complexes embedded within SBA-15 for removal of organic contaminants via production of singlet oxygen.
Environ Sci Pollut Res Int. 2018 Dec; 25(34):34190-34199.ES

Abstract

Persulfates are recognized as promising oxidants and an alternative to Fenton reaction for water treatment. However, activation methods in hand restrict the practical application. Herein, we explore the possibility of Fe-N complexes being a catalyst for persulfate activation for the first time. The catalyst denoted as Fe-Im-SBA was synthesized from ferric chloride, imidazole, and SBA-15 at high temperature. The internal pore structure of Fe-Im-SBA was maintained well; Fe, N and C elements are evenly distributed on the catalyst. This catalyst presents an extraordinarily catalytic activity for Rh B removal by PMS activation with a removal rate of Rh B that reached up to 97.0% in the first 5 min. It also performed well in a wide pH range with complete removal of Rh B in pH ranged from 0.5 to 10, suggesting the stability of this catalyst in both acidic and alkaline conditions. It also showed high adaptability to degrade different kinds of pollutants, which could give an attractive advantage of Fe-Im-SBA for environmental implications. Through X-ray absorption spectroscopies analysis, it shows that the active sites of Fe-Im-SBA are composed of Fe-N4 sites and Fe2-N2 sites. 1O2 were proved to generate in the Fe-Im-SBA/PMS system and serve as the major ROS. Meanwhile, graphitic carbon can accelerate the transfer of electrons, which may also be the reason for its high catalytic performance.

Authors+Show Affiliations

Institute of Environmental Health, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou, 310058, China.Institute of Environmental Health, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou, 310058, China.College of Environmental Science and Engineering, Donghua University, Shanghai, 201620, China.Institute of Environmental Health, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou, 310058, China.Institute of Environmental Health, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou, 310058, China. wenyuezhong@zju.edu.cn.

Pub Type(s)

Journal Article

Language

eng

PubMed ID

30288673

Citation

Yang, Qunfeng, et al. "Activation of Peroxymonosulfate By Fe-N Complexes Embedded Within SBA-15 for Removal of Organic Contaminants Via Production of Singlet Oxygen." Environmental Science and Pollution Research International, vol. 25, no. 34, 2018, pp. 34190-34199.
Yang Q, Jia N, Shen C, et al. Activation of peroxymonosulfate by Fe-N complexes embedded within SBA-15 for removal of organic contaminants via production of singlet oxygen. Environ Sci Pollut Res Int. 2018;25(34):34190-34199.
Yang, Q., Jia, N., Shen, C., Ma, J., & Wen, Y. (2018). Activation of peroxymonosulfate by Fe-N complexes embedded within SBA-15 for removal of organic contaminants via production of singlet oxygen. Environmental Science and Pollution Research International, 25(34), 34190-34199. https://doi.org/10.1007/s11356-018-3323-1
Yang Q, et al. Activation of Peroxymonosulfate By Fe-N Complexes Embedded Within SBA-15 for Removal of Organic Contaminants Via Production of Singlet Oxygen. Environ Sci Pollut Res Int. 2018;25(34):34190-34199. PubMed PMID: 30288673.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Activation of peroxymonosulfate by Fe-N complexes embedded within SBA-15 for removal of organic contaminants via production of singlet oxygen. AU - Yang,Qunfeng, AU - Jia,Nanzhengfang, AU - Shen,Chensi, AU - Ma,Jianqing, AU - Wen,Yuezhong, Y1 - 2018/10/04/ PY - 2018/06/07/received PY - 2018/09/24/accepted PY - 2018/10/6/pubmed PY - 2019/2/5/medline PY - 2018/10/6/entrez KW - Activation KW - Catalyst KW - Degradation KW - Fe-N complexes KW - Peroxymonosulfate SP - 34190 EP - 34199 JF - Environmental science and pollution research international JO - Environ Sci Pollut Res Int VL - 25 IS - 34 N2 - Persulfates are recognized as promising oxidants and an alternative to Fenton reaction for water treatment. However, activation methods in hand restrict the practical application. Herein, we explore the possibility of Fe-N complexes being a catalyst for persulfate activation for the first time. The catalyst denoted as Fe-Im-SBA was synthesized from ferric chloride, imidazole, and SBA-15 at high temperature. The internal pore structure of Fe-Im-SBA was maintained well; Fe, N and C elements are evenly distributed on the catalyst. This catalyst presents an extraordinarily catalytic activity for Rh B removal by PMS activation with a removal rate of Rh B that reached up to 97.0% in the first 5 min. It also performed well in a wide pH range with complete removal of Rh B in pH ranged from 0.5 to 10, suggesting the stability of this catalyst in both acidic and alkaline conditions. It also showed high adaptability to degrade different kinds of pollutants, which could give an attractive advantage of Fe-Im-SBA for environmental implications. Through X-ray absorption spectroscopies analysis, it shows that the active sites of Fe-Im-SBA are composed of Fe-N4 sites and Fe2-N2 sites. 1O2 were proved to generate in the Fe-Im-SBA/PMS system and serve as the major ROS. Meanwhile, graphitic carbon can accelerate the transfer of electrons, which may also be the reason for its high catalytic performance. SN - 1614-7499 UR - https://www.unboundmedicine.com/medline/citation/30288673/Activation_of_peroxymonosulfate_by_Fe_N_complexes_embedded_within_SBA_15_for_removal_of_organic_contaminants_via_production_of_singlet_oxygen_ L2 - https://dx.doi.org/10.1007/s11356-018-3323-1 DB - PRIME DP - Unbound Medicine ER -