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Fe-doped biochar derived from waste sludge for degradation of rhodamine B via enhancing activation of peroxymonosulfate.
Chemosphere. 2020 Dec; 261:127616.C

Abstract

The disposal and management of waste sludge is a considerable challenge for environmental protection and resource utilization. Herein, sludge-based biochar material loaded with nano-Fe3O4 (xS@Fe-y) was fabricated via hydrothermal carbonization process and employed as catalyst to activate peroxymonosulfate (PMS) for degrading organic dyes in wastewater. Benefiting from the proper iron content, porous structure and the good dispersibility of iron on the catalyst surface, the proposed 5S@Fe-500 catalyst not only exhibited excellent catalytic activity and durability in the activation of PMS to degrade Rhodamine B (RhB), which was almost completely removed in 10 min (50 mL 50 mg L-1), but also performed broad application prospects in pollutant degradation. More importantly, the free radical quenching test and electron spin-resonance spectroscopy (ESR) detection demonstrated that O2•-, SO4•-, OH and 1O2 were generated during the process of catalyst activation of PMS. Based on this, a possible reaction pathway for degrading RhB with the aid of 5S@Fe-500 was put forward. It is believed that this work offers a promising reuse method of converting the waste sludge to a high efficiency and low-cost nano magnetic catalyst to activate PMS for degrading refractory organic pollutants in aquatic surroundings.

Authors+Show Affiliations

College of Chemistry and Material Science, Shandong Agricultural University, Taian, Shandong, 271018, PR China.College of Chemistry and Material Science, Shandong Agricultural University, Taian, Shandong, 271018, PR China.College of Chemistry and Material Science, Shandong Agricultural University, Taian, Shandong, 271018, PR China.College of Chemistry and Material Science, Shandong Agricultural University, Taian, Shandong, 271018, PR China.College of Chemistry and Material Science, Shandong Agricultural University, Taian, Shandong, 271018, PR China. Electronic address: shuangzhou@sdau.edu.cn.College of Chemistry and Material Science, Shandong Agricultural University, Taian, Shandong, 271018, PR China. Electronic address: ashy@sdau.edu.cn.

Pub Type(s)

Journal Article

Language

eng

PubMed ID

32739688

Citation

Zang, Tianchan, et al. "Fe-doped Biochar Derived From Waste Sludge for Degradation of Rhodamine B Via Enhancing Activation of Peroxymonosulfate." Chemosphere, vol. 261, 2020, p. 127616.
Zang T, Wang H, Liu Y, et al. Fe-doped biochar derived from waste sludge for degradation of rhodamine B via enhancing activation of peroxymonosulfate. Chemosphere. 2020;261:127616.
Zang, T., Wang, H., Liu, Y., Dai, L., Zhou, S., & Ai, S. (2020). Fe-doped biochar derived from waste sludge for degradation of rhodamine B via enhancing activation of peroxymonosulfate. Chemosphere, 261, 127616. https://doi.org/10.1016/j.chemosphere.2020.127616
Zang T, et al. Fe-doped Biochar Derived From Waste Sludge for Degradation of Rhodamine B Via Enhancing Activation of Peroxymonosulfate. Chemosphere. 2020;261:127616. PubMed PMID: 32739688.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Fe-doped biochar derived from waste sludge for degradation of rhodamine B via enhancing activation of peroxymonosulfate. AU - Zang,Tianchan, AU - Wang,Hao, AU - Liu,Yinghao, AU - Dai,Li, AU - Zhou,Shuang, AU - Ai,Shiyun, Y1 - 2020/07/12/ PY - 2020/05/14/received PY - 2020/06/28/revised PY - 2020/06/30/accepted PY - 2020/8/3/pubmed PY - 2020/11/3/medline PY - 2020/8/3/entrez KW - Degradation KW - Fe-doped biochar KW - Organic pollutant KW - Peroxymonosulfate KW - Waste sludge SP - 127616 EP - 127616 JF - Chemosphere JO - Chemosphere VL - 261 N2 - The disposal and management of waste sludge is a considerable challenge for environmental protection and resource utilization. Herein, sludge-based biochar material loaded with nano-Fe3O4 (xS@Fe-y) was fabricated via hydrothermal carbonization process and employed as catalyst to activate peroxymonosulfate (PMS) for degrading organic dyes in wastewater. Benefiting from the proper iron content, porous structure and the good dispersibility of iron on the catalyst surface, the proposed 5S@Fe-500 catalyst not only exhibited excellent catalytic activity and durability in the activation of PMS to degrade Rhodamine B (RhB), which was almost completely removed in 10 min (50 mL 50 mg L-1), but also performed broad application prospects in pollutant degradation. More importantly, the free radical quenching test and electron spin-resonance spectroscopy (ESR) detection demonstrated that O2•-, SO4•-, OH and 1O2 were generated during the process of catalyst activation of PMS. Based on this, a possible reaction pathway for degrading RhB with the aid of 5S@Fe-500 was put forward. It is believed that this work offers a promising reuse method of converting the waste sludge to a high efficiency and low-cost nano magnetic catalyst to activate PMS for degrading refractory organic pollutants in aquatic surroundings. SN - 1879-1298 UR - https://www.unboundmedicine.com/medline/citation/32739688/Fe_doped_biochar_derived_from_waste_sludge_for_degradation_of_rhodamine_B_via_enhancing_activation_of_peroxymonosulfate_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0045-6535(20)31811-7 DB - PRIME DP - Unbound Medicine ER -