In situ nanoconfinement catalysis for rapid hydrodechlorination of chlorophenol

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dc.contributor.authorRaihan, Uddin Sk
dc.contributor.authorZhang, Jingqi
dc.contributor.authorChao, Jingbo
dc.contributor.authorHu, Qing
dc.contributor.authorCoulon, Frederic
dc.contributor.authorYang, Xiao Jin
dc.date.accessioned2025-03-12T15:59:57Z
dc.date.available2025-03-12T15:59:57Z
dc.date.freetoread2025-03-12
dc.date.issued2025-04-01
dc.date.pubOnline2025-02-24
dc.description.abstractChlorinated phenols are highly toxic to human and ecosystem and their biological degradation is difficult. In this work, a novel MgAlNi alloy catalyst was developed for rapid chemical degradation of p-chlorophenol (4-CP) in water under mild conditions via in situ hydrodechlorination (iHDC) without external hydrogen gas supply. A complete conversion of 0.195 mM 4-CP to phenol was achieved within 15 min with a reaction rate constant of 7.65 h−1, 19.4 times higher than that of the traditional Raney Nickel (AlNi alloy) catalyst. The excellent performance of MgAlNi alloy catalyst is attributed to enhanced H2 generation by Mg etching, surface self-reconstruction by growth of in situ layered double hydroxide (iLDH) nanosheets of 0.08–1 nm, exposed active sites of AlNi intermetallic compounds Al3Ni2 and Al3Ni. The findings of this study provide new insights into broader applications of nanoconfinement catalysis to environmental remediation and open a new domain of in situ nanoconfinement catalysis (iNCC).
dc.description.journalNameChemical Engineering Science
dc.identifier.citationRaihan US, Zhang J, Chao J, et al., (2025) In situ nanoconfinement catalysis for rapid hydrodechlorination of chlorophenol. Chemical Engineering Science, Volume 308, April 2025. Article number 121357en_UK
dc.identifier.elementsID565771
dc.identifier.issn0009-2509
dc.identifier.paperNo121357
dc.identifier.urihttps://doi.org/10.1016/j.ces.2025.121357
dc.identifier.urihttps://dspace.lib.cranfield.ac.uk/handle/1826/23600
dc.identifier.volumeNo308
dc.languageEnglish
dc.language.isoen
dc.publisherElsevieren_UK
dc.publisher.urihttps://www.sciencedirect.com/science/article/pii/S0009250925001800?via%3Dihub
dc.rightsAttribution 4.0 Internationalen
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/
dc.subject40 Engineeringen_UK
dc.subject4016 Materials Engineeringen_UK
dc.subject4004 Chemical engineeringen_UK
dc.subjectAl-Ni intermetallic compoundsen_UK
dc.subjectChlorophenolen_UK
dc.subjectMgAlNi alloyen_UK
dc.subjectIn situ hydrodechlorinationen_UK
dc.subjectIn situ nanoconfinement catalysisen_UK
dc.titleIn situ nanoconfinement catalysis for rapid hydrodechlorination of chlorophenolen_UK
dc.typeArticle
dc.type.subtypeJournal Article
dcterms.dateAccepted2025-02-10

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