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A reusable catalyst based on CuO hexapods and a CuO-Ag composite for the highly efficient reduction of nitrophenols.

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cam.issuedOnline2021-04-08
dc.contributor.authorZhang, Nannan
dc.contributor.authorMeng, Yuxi
dc.contributor.authorNing, Yuxue
dc.contributor.authorWheatley, Andrew EH
dc.contributor.authorChai, Fang
dc.contributor.orcidWheatley, Andrew EH [0000-0002-2624-6063]
dc.contributor.orcidChai, Fang [0000-0003-1855-0839]
dc.date.accessioned2022-05-17T09:03:22Z
dc.date.available2022-05-17T09:03:22Z
dc.date.issued2021-04-07
dc.date.updated2022-05-17T09:03:21Z
dc.description.abstractThe enormous and urgent need to explore cost-effective catalysts with high efficiency has always been at the forefront of environmental protection and remediation research. This work develops a novel strategy for the fabrication of reusable CuO-based non-noble metal nanomaterials as high-efficiency catalysts. We report a facile and eco-friendly synthesis of CuO hexapods and CuO-Ag composite using uric acid as a reductant and protectant. Both exhibited high catalytic activity in the hydrogenation of 4-nitrophenol (4-NP) to 4-aminophenol (4-AP) by sodium borohydride (NaBH4), with the CuO-Ag composite showing superior catalytic performance. Notably, the highest turnover frequency of CuO-Ag reached 7.97 × 10-2 s-1, which was much higher than numerous noble-metal nanomaterials. In addition, CuO hexapods and CuO-Ag composite were also shown to act as highly efficient and recyclable catalysts in the degeneration of 4-NP. Both CuO hexapods and the CuO-Ag composite exhibited outstanding catalytic durability, with no significant loss of activity over more than 10 cycles in the hydrogenation of 4-NP.
dc.identifier.doi10.17863/CAM.84644
dc.identifier.eissn2046-2069
dc.identifier.issn2046-2069
dc.identifier.other35423838
dc.identifier.otherPMC8697534
dc.identifier.urihttps://www.repository.cam.ac.uk/handle/1810/337226
dc.languageeng
dc.language.isoeng
dc.publisherRoyal Society of Chemistry (RSC)
dc.publisher.urlhttp://dx.doi.org/10.1039/d1ra01560e
dc.rightsAttribution 4.0 International
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/
dc.sourcenlmid: 101581657
dc.sourceessn: 2046-2069
dc.subject34 Chemical Sciences
dc.titleA reusable catalyst based on CuO hexapods and a CuO-Ag composite for the highly efficient reduction of nitrophenols.
dc.typeArticle
dcterms.dateAccepted2021-03-30
prism.endingPage13200
prism.issueIdentifier22
prism.publicationNameRSC Adv
prism.startingPage13193
prism.volume11
rioxxterms.licenseref.urihttps://creativecommons.org/licenses/by/4.0/
rioxxterms.versionVoR
rioxxterms.versionofrecord10.1039/d1ra01560e

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