Heterogeneous Fenton-type oxidative degradation of low-density polyethylene to valuable acid products using a nanostructured Fe–CeO2 solid solution catalyst

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dc.check.date2026-01-02en
dc.check.infoAccess to this article is restricted until 12 months after publication by request of the publisher.en
dc.contributor.authorBreen, Rachelen
dc.contributor.authorHolmes, Justin D.en
dc.contributor.authorCollins, Gillianen
dc.contributor.funderScience Foundation Irelanden
dc.date.accessioned2025-05-07T15:00:42Z
dc.date.available2025-05-07T15:00:42Z
dc.date.issued2025-01-02en
dc.description.abstractThe chemical conversion of waste plastic polymers to useful commodity chemicals has become crucial to helping tackle the issue of global plastic waste today. Polyolefins maintain the highest production rate and lowest recycling rate worldwide due to their inert chemical structures. This work shows the synthesis of solid-solution Fe–CeO2 catalyst as an excellent heterogeneous catalyst for Fenton-type oxidative degradation of low-density polyethylene to achieve high yields of organic acids. The catalyst was synthesized in 3 molar ratios of Fe : Ce and it was found that the molar ratio of iron and cerium was crucial for catalytic performance with the Fe–CeO2 1 : 1 catalyst giving the highest yields of acid products. The catalyst achieved 91% mass loss and 71% organic acid at pH 7, with 1 wt% catalyst loading. The use of a multi-metal Fenton system resulted in a synergistic effect, displaying superior activity to systems with only one Fenton active metal. The heterogeneous nature of the catalyst allowed for easy recovery and demonstrated excellent recyclability in multiple cycles. The high recyclability performance was attributed to the stability of the solid solution structure.en
dc.description.sponsorshipScience Foundation Ireland (12/RC2278_P2)en
dc.description.statusPeer revieweden
dc.description.versionAccepted Versionen
dc.format.mimetypeapplication/pdfen
dc.identifier.citationBreen, R., Holmes, J. D. and Collins, G. (2025) 'Heterogeneous Fenton-type oxidative degradation of low-density polyethylene to valuable acid products using a nanostructured Fe–CeO 2 solid solution catalyst', Catalysis Science & Technology. https://doi.org/10.1039/d4cy01384ken
dc.identifier.doi10.1039/d4cy01384ken
dc.identifier.issn2044-4753en
dc.identifier.issn2044-4761en
dc.identifier.journaltitleCatalysis Science & Technologyen
dc.identifier.urihttps://hdl.handle.net/10468/17403
dc.language.isoenen
dc.publisherRoyal Society of Chemistryen
dc.relation.ispartofCatalysis Science & Technologyen
dc.rights© 2025, Royal Society of Chemistry. All rights reserved.en
dc.subjectHeterogeneous catalysisen
dc.subjectFenton oxidationen
dc.subjectSolid solution catalysten
dc.subjectCeO2en
dc.subjectNanocatalysisen
dc.subjectChemical recyclingen
dc.subjectOxidative degradationen
dc.subjectLow density polyethyleneen
dc.titleHeterogeneous Fenton-type oxidative degradation of low-density polyethylene to valuable acid products using a nanostructured Fe–CeO2 solid solution catalysten
dc.typeArticle (peer-reviewed)en
dc.typejournal-articleen
oaire.citation.issue3en
oaire.citation.volume15en
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