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Fe@C carbonized resin for peroxymonosulfate activation and bisphenol S degradation.
Environ Pollut. 2019 Sep; 252(Pt B):1042-1050.EP

Abstract

Aiming at realizing heavy metal recycling and resource utilization, a carbon-based iron catalyst (Fe@C) was synthesized through a resin carbonization method, and adopted for peroxymonosulfate (PMS) activation to remove bisphenol S (BPS), an emerging aquatic contaminant. This study demonstrated that Fe@C exhibited excellent catalytic potential for BPS degradation with a relatively low activation energy (Ea = 29.90 kJ/mol). Kinetic factors affecting the activation performance were thoroughly investigated. The obtained results indicated that Fe@C composite exhibited the superior uniformity with carbon as the framework and granular iron oxide as the coverage. pH increase could cause the inhibitive effect on BPS degradation, while the increasing catalyst loading (0.05-0.5 g/L) was conducive for the catalytic performance of Fe@C, with an optimal PMS concentration at 1.0 mM. A negative influence on BPS degradation was obtained in the presence of SO42-, HCO3- and lower concentration of Cl- (0-20 mM), compared to the promotion at higher concentration of Cl- (>50 mM). Based on the electron spin resonance (ESR) monitoring and radical scavenging results, it is demonstrated that singlet oxygen, a non-radical species, emerged together with ·SO4- and ·OH for BPS degradation. A three-channel catalytic mechanism was verified through typical characterizations. Furthermore, the degradation pathway of BPS was proposed based on the identified intermediates. This novel carbon-based activator for PMS showed notable potential for the waste resin recycling and water decontamination. A novel Fe-based activator carbonized from a saturated resin exhibits excellent performance for Bisphenol S degradation with activated peroxymonosulfate.

Authors+Show Affiliations

College of Architecture and Environment, Sichuan University, Chengdu, 610065, China.College of Architecture and Environment, Sichuan University, Chengdu, 610065, China; Key Laboratory of Deep Earth Science and Engineering (Sichuan University), Ministry of Education, Chengdu, 610065, China. Electronic address: hgguo@scu.edu.cn.College of Architecture and Environment, Sichuan University, Chengdu, 610065, China.College of Architecture and Environment, Sichuan University, Chengdu, 610065, China.College of Architecture and Environment, Sichuan University, Chengdu, 610065, China.College of Architecture and Environment, Sichuan University, Chengdu, 610065, China.College of Architecture and Environment, Sichuan University, Chengdu, 610065, China.

Pub Type(s)

Journal Article

Language

eng

PubMed ID

31252101

Citation

Liu, Yang, et al. "Fe@C Carbonized Resin for Peroxymonosulfate Activation and Bisphenol S Degradation." Environmental Pollution (Barking, Essex : 1987), vol. 252, no. Pt B, 2019, pp. 1042-1050.
Liu Y, Guo H, Zhang Y, et al. Fe@C carbonized resin for peroxymonosulfate activation and bisphenol S degradation. Environ Pollut. 2019;252(Pt B):1042-1050.
Liu, Y., Guo, H., Zhang, Y., Cheng, X., Zhou, P., Wang, J., & Li, W. (2019). Fe@C carbonized resin for peroxymonosulfate activation and bisphenol S degradation. Environmental Pollution (Barking, Essex : 1987), 252(Pt B), 1042-1050. https://doi.org/10.1016/j.envpol.2019.05.157
Liu Y, et al. Fe@C Carbonized Resin for Peroxymonosulfate Activation and Bisphenol S Degradation. Environ Pollut. 2019;252(Pt B):1042-1050. PubMed PMID: 31252101.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Fe@C carbonized resin for peroxymonosulfate activation and bisphenol S degradation. AU - Liu,Yang, AU - Guo,Hongguang, AU - Zhang,Yongli, AU - Cheng,Xin, AU - Zhou,Peng, AU - Wang,Jingquan, AU - Li,Wei, Y1 - 2019/05/31/ PY - 2019/01/30/received PY - 2019/05/29/revised PY - 2019/05/30/accepted PY - 2019/6/30/pubmed PY - 2019/10/28/medline PY - 2019/6/29/entrez KW - Activation KW - Bisphenol S KW - Carbon-iron catalyst KW - Kinetics KW - Mechanism KW - Peroxymonosulfate SP - 1042 EP - 1050 JF - Environmental pollution (Barking, Essex : 1987) JO - Environ. Pollut. VL - 252 IS - Pt B N2 - Aiming at realizing heavy metal recycling and resource utilization, a carbon-based iron catalyst (Fe@C) was synthesized through a resin carbonization method, and adopted for peroxymonosulfate (PMS) activation to remove bisphenol S (BPS), an emerging aquatic contaminant. This study demonstrated that Fe@C exhibited excellent catalytic potential for BPS degradation with a relatively low activation energy (Ea = 29.90 kJ/mol). Kinetic factors affecting the activation performance were thoroughly investigated. The obtained results indicated that Fe@C composite exhibited the superior uniformity with carbon as the framework and granular iron oxide as the coverage. pH increase could cause the inhibitive effect on BPS degradation, while the increasing catalyst loading (0.05-0.5 g/L) was conducive for the catalytic performance of Fe@C, with an optimal PMS concentration at 1.0 mM. A negative influence on BPS degradation was obtained in the presence of SO42-, HCO3- and lower concentration of Cl- (0-20 mM), compared to the promotion at higher concentration of Cl- (>50 mM). Based on the electron spin resonance (ESR) monitoring and radical scavenging results, it is demonstrated that singlet oxygen, a non-radical species, emerged together with ·SO4- and ·OH for BPS degradation. A three-channel catalytic mechanism was verified through typical characterizations. Furthermore, the degradation pathway of BPS was proposed based on the identified intermediates. This novel carbon-based activator for PMS showed notable potential for the waste resin recycling and water decontamination. A novel Fe-based activator carbonized from a saturated resin exhibits excellent performance for Bisphenol S degradation with activated peroxymonosulfate. SN - 1873-6424 UR - https://www.unboundmedicine.com/medline/citation/31252101/Fe@C_carbonized_resin_for_peroxymonosulfate_activation_and_bisphenol_S_degradation_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0269-7491(19)30597-4 DB - PRIME DP - Unbound Medicine ER -