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https://hdl.handle.net/2440/136383
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dc.contributor.author | Wang, J. | - |
dc.contributor.author | Zhao, Y. | - |
dc.contributor.author | Li, C. | - |
dc.contributor.author | Yu, Z. | - |
dc.contributor.author | Zhang, Y. | - |
dc.contributor.author | Li, Y. | - |
dc.contributor.author | Tan, X. | - |
dc.contributor.author | Liu, S. | - |
dc.contributor.author | Wang, S. | - |
dc.contributor.author | Duan, X. | - |
dc.date.issued | 2022 | - |
dc.identifier.citation | Science of the Total Environment, 2022; 836:155670-1-155670-11 | - |
dc.identifier.issn | 0048-9697 | - |
dc.identifier.issn | 1879-1026 | - |
dc.identifier.uri | https://hdl.handle.net/2440/136383 | - |
dc.description.abstract | Hierarchically porous iron/nitrogen-doped carbons (Fe-N-PC) were developed for the oxidation of ibuprofen (IBP) with peroxymonosulfate (PMS). The incorporation of trace-level iron and nitrogen dopants promoted the catalytic per- formance remarkably, leading to 4.8, 16.4 and 22.9-fold enhancement over N-doped carbon (N-PC), porous carbon (PC), and Fe-doped carbon (Fe-PC), respectively. Fe(III) was anchored in nitrogen-coordinated pots (Fe-Nx) in the sp2-hybridized carbon network, and graphitic-N could synergistically boost the catalysis. Notably, methyl phenyl sulf- oxide (PMSO) transformation, quenching tests, in situ electrochemical analysis and Raman spectroscopy verified high- valent iron-oxo species and direct electron transfer pathway accounted for pollutant oxidation. The relationship be- tween the kinetic constants (lnkobs) and the oxidation peak potential (Eop) of pollutants was established with good cor- relation, manifesting particular selectivity toward oxidizing electron-rich pollutants and great immunity to background inorganic ions and natural organic matters (NOMs) for real wastewater treatment. The deactivation mechanisms of Fe-N-PC were revealed via surface oxidation and dopant refabrication. This work delicates to deepen the understanding of the nonradical mechanisms and structure-oriented PMS activation by engineered carbonaceous materials. | - |
dc.description.statementofresponsibility | Jun Wang, Ying Zhao, Chunting Li, Zijun Yu, Yang Zhang, Yuan Li, Xiaoyao Tan, Shaomin Liu, Shaobin Wang, Xiaoguang Duan | - |
dc.language.iso | en | - |
dc.publisher | Elsevier BV | - |
dc.rights | © 2022 Elsevier B.V. All rights reserved | - |
dc.source.uri | http://dx.doi.org/10.1016/j.scitotenv.2022.155670 | - |
dc.subject | Porous carbon | - |
dc.subject | Peroxymonosulfate | - |
dc.subject | High-valent iron-oxo species | - |
dc.subject | Nonradical pathway | - |
dc.subject | Electron-transfer process | - |
dc.subject.mesh | Peroxides | - |
dc.subject.mesh | Carbon | - |
dc.subject.mesh | Iron | - |
dc.subject.mesh | Nitrogen | - |
dc.subject.mesh | Environmental Pollutants | - |
dc.subject.mesh | Oxidation-Reduction | - |
dc.subject.mesh | Porosity | - |
dc.title | Peroxymonosulfate oxidation via paralleled nonradical pathways over iron and nitrogen doped porous carbons | - |
dc.type | Journal article | - |
dc.identifier.doi | 10.1016/j.scitotenv.2022.155670 | - |
dc.relation.grant | http://purl.org/au-research/grants/arc/DE210100253 | - |
pubs.publication-status | Published | - |
dc.identifier.orcid | Wang, S. [0000-0002-1751-9162] | - |
dc.identifier.orcid | Duan, X. [0000-0001-9635-5807] | - |
Appears in Collections: | Chemical Engineering publications |
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