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Article: Coupled Adsorption and Surface-Bound Radical-Mediated Oxidation on Biomass-Derived Porous Carbon: A Selective Approach for Sulfamethoxazole Removal

TitleCoupled Adsorption and Surface-Bound Radical-Mediated Oxidation on Biomass-Derived Porous Carbon: A Selective Approach for Sulfamethoxazole Removal
Authors
KeywordsMicropollutants
Peroxydisulfate
Porous carbon
Sulfamethoxazole
Surface-bound radicals
Issue Date15-Jan-2023
PublisherElsevier
Citation
Chemical Engineering Journal, 2023, v. 452 How to Cite?
Abstract

The development of selective oxidation processes is significant for the efficient removal of organic micropollutants from aqueous streams. Here, we propose a novel catalytic system that involves highly efficient adsorption followed by surface radical-mediated oxidation via conjunction of biomass-derived porous carbon (BPC) and peroxydisulfate (PDS). A series of BPC samples were prepared via pyrolyzing biomass at different temperatures (600 °C, 700 °C, 800 °C). BPC800 had the best reactivity for sulfamethoxazole removal: The maximum adsorption capacity of BPC800 was 529.3 mg/g, which is more than four times that of activated carbon (125.4 mg/g). The co-presence of PDS changed the major removing mechanism from adsorption to degradation. Mechanistic studies using quenching tests, electrochemical characterization, and fluorescence microscopy showed that surface-bound radicals were the dominant reactive species. Efficient performance was also achieved during the treatment of real wastewater and several other micropollutants. The results suggest a novel approach for highly-efficient selective removal of micropollutants from polluted wastewater and offer new insights into the generation of reactive species during the activation of PDS by carbonaceous materials.


Persistent Identifierhttp://hdl.handle.net/10722/338024
ISSN
2023 Impact Factor: 13.3
2023 SCImago Journal Rankings: 2.852
ISI Accession Number ID

 

DC FieldValueLanguage
dc.contributor.authorLi, Yu-
dc.contributor.authorYang, Jingdong-
dc.contributor.authorZhang, Min-
dc.contributor.authorYang, Zequn-
dc.contributor.authorShih, Kaimin-
dc.contributor.authorYing, Guang-Guo-
dc.contributor.authorFeng, Yong-
dc.date.accessioned2024-03-11T10:25:41Z-
dc.date.available2024-03-11T10:25:41Z-
dc.date.issued2023-01-15-
dc.identifier.citationChemical Engineering Journal, 2023, v. 452-
dc.identifier.issn1385-8947-
dc.identifier.urihttp://hdl.handle.net/10722/338024-
dc.description.abstract<p>The development of selective oxidation processes is significant for the efficient removal of organic micropollutants from aqueous streams. Here, we propose a novel catalytic system that involves highly efficient adsorption followed by surface radical-mediated oxidation via conjunction of biomass-derived porous carbon (BPC) and peroxydisulfate (PDS). A series of BPC samples were prepared via pyrolyzing biomass at different temperatures (600 °C, 700 °C, 800 °C). BPC800 had the best reactivity for sulfamethoxazole removal: The maximum adsorption capacity of BPC800 was 529.3 mg/g, which is more than four times that of activated carbon (125.4 mg/g). The co-presence of PDS changed the major removing mechanism from adsorption to degradation. Mechanistic studies using quenching tests, electrochemical characterization, and fluorescence microscopy showed that surface-bound radicals were the dominant reactive species. Efficient performance was also achieved during the treatment of real wastewater and several other micropollutants. The results suggest a novel approach for highly-efficient selective removal of micropollutants from polluted wastewater and offer new insights into the generation of reactive species during the activation of PDS by carbonaceous materials.<br></p>-
dc.languageeng-
dc.publisherElsevier-
dc.relation.ispartofChemical Engineering Journal-
dc.subjectMicropollutants-
dc.subjectPeroxydisulfate-
dc.subjectPorous carbon-
dc.subjectSulfamethoxazole-
dc.subjectSurface-bound radicals-
dc.titleCoupled Adsorption and Surface-Bound Radical-Mediated Oxidation on Biomass-Derived Porous Carbon: A Selective Approach for Sulfamethoxazole Removal-
dc.typeArticle-
dc.identifier.doi10.1016/j.cej.2022.139484-
dc.identifier.scopuseid_2-s2.0-85139278184-
dc.identifier.volume452-
dc.identifier.eissn1873-3212-
dc.identifier.isiWOS:000917327000002-
dc.identifier.issnl1385-8947-

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