Catalytic transformation of microplastics to functional carbon for catalytic peroxymonosulfate activation: Conversion mechanism and defect of scavenging

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dc.contributor.authorRen, S.
dc.contributor.authorXu, X.
dc.contributor.authorZhu, Z.S.
dc.contributor.authorYang, Y.
dc.contributor.authorTian, W.
dc.contributor.authorHu, K.
dc.contributor.authorZhong, S.
dc.contributor.authorYi, J.
dc.contributor.authorDuan, X.
dc.contributor.authorWang, S.
dc.date.issued2024
dc.description.abstractPlastic wastes were catalytically transformed into different structured carbons as effective catalysts for peroxymonosulfate activation to degrade organic pollutants in water and the catalytic conversion mechanism was comprehensively investigated. A salt template-based carbonization approach was successfully developed to catalytically converting high-density polyethylene (HDPE) into diverse carbon materials, such as core-shell carbon composites, nanosheets, and their hybrids. The morphology and proportions of structure defective carbon were found to be controlled by a NiCl2 to HDPE ratio. Carbon nanosheets performed excellent catalytic efficiency in peroxymonosulfate activation toward phenol oxidation, due to a high content of reactive defects via a nonradical electron-transfer mechanism. More importantly, deliberate experiment design and kinetic analyses were employed to illustrate the artifact of radical scavengers (e.g., ethanol) in mechanistic investigation for nonradical/radical reaction. This work provides an upcycle approach for waste plastics into carbocatalysts and new insight to the conversion process and advanced water purification.
dc.description.statementofresponsibilityShiying Ren, Xin Xu, Zhong-Shuai Zhu, Yangyang Yang, Wenjie Tian, Kunsheng Hu, Shuang Zhong, Jiabao Yi, Xiaoguang Duan, Shaobin Wang
dc.identifier.citationApplied Catalysis B: Environmental, 2024; 342:123410-1-123410-11
dc.identifier.doi10.1016/j.apcatb.2023.123410
dc.identifier.issn0926-3373
dc.identifier.issn1873-3883
dc.identifier.orcidRen, S. [0000-0002-4475-6331]
dc.identifier.orcidZhu, Z.S. [0000-0001-8821-2136]
dc.identifier.orcidTian, W. [0000-0002-7503-5481] [0000-0002-9896-1154]
dc.identifier.orcidHu, K. [0000-0002-8598-6336]
dc.identifier.orcidZhong, S. [0000-0001-6103-5125]
dc.identifier.orcidDuan, X. [0000-0001-9635-5807]
dc.identifier.orcidWang, S. [0000-0002-1751-9162]
dc.identifier.urihttps://hdl.handle.net/2440/142258
dc.language.isoen
dc.publisherElsevier BV
dc.relation.granthttp://purl.org/au-research/grants/arc/DP200103206
dc.relation.granthttp://purl.org/au-research/grants/arc/LP200201079
dc.relation.granthttp://purl.org/au-research/grants/arc/DE210100253
dc.relation.granthttp://purl.org/au-research/grants/arc/DE220101074
dc.rights© 2023 The Author(s). Published by Elsevier B.V. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/).
dc.source.urihttps://doi.org/10.1016/j.apcatb.2023.123410
dc.subjectPlastics; Carbon nanosheets; Persulfate activation; Pollutant degradation; Radical scavengers
dc.titleCatalytic transformation of microplastics to functional carbon for catalytic peroxymonosulfate activation: Conversion mechanism and defect of scavenging
dc.typeJournal article
pubs.publication-statusPublished

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