Gold-Nanoparticle Decorated Monosized Magnetic Polymer Based Catalyst: Reduction of 4-Nitrophenol

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dc.authoridKIBAR, GUNES/0000-0002-2586-6770
dc.contributor.authorKibar, Gunes
dc.contributor.authorTuncel, Ali
dc.date.accessioned2025-01-06T17:44:09Z
dc.date.available2025-01-06T17:44:09Z
dc.date.issued2018
dc.description.abstractThe objective of this study was to fabricate a multifunctional catalyst for removal of environmental pollutants. By this aim, poly(mono-2-(methacryloyloxy)ethyl succinate-co-glycerol dimethacrylate) poly(MMES-co-GDMA) monosized microbeads with carboxyl functionality were synthesized 5 mu m in diameter. Iron oxide nanoparticles were attached onto the polymeric microbeads to obtain superparamagnetic properties for easily collecting them from the reaction medium by using natural magnet. The magnetic polymer microbeads were decorated with gold nanoparticles ca. 15nm in size. The magnetic-monodisperse catalyst carrying gold nanoparticles exhibited several advantages with respect to similar plasmonic catalysts in the form of nanoparticles, like higher aggregation resistance, easier recovery from the reaction medium with natural magnets and reuse of catalyst without leaching gold nanoparticles. The magnetic gold catalyst was characterized by scanning electron microscopy (SEM), vibrating sample magnetometry (VSM) and X-ray diffraction spectrophotometry (XRD). This newly designed catalyst was used to degrade a toxic organic substance, 4-nitrophenol (4-NP) in an aqueous medium. The degradation process of 4-NP to 4-aminophenol (4-AP) was monitored by a UV-Visible spectrophotometer. The effects of reaction conditions, catalyst and organic pollutant concentrations and temperature, on the plasmonic catalytic activity were determined. The results of repetitive trials were successful with high catalytic activity for the reduction of 4-NP to 4-AP form in several minutes by using and reusing the synthesized catalyst.
dc.identifier.doi10.1007/s10904-018-0899-3
dc.identifier.endpage2257
dc.identifier.issn1574-1443
dc.identifier.issn1574-1451
dc.identifier.issue6
dc.identifier.scopus2-s2.0-85048531758
dc.identifier.scopusqualityQ1
dc.identifier.startpage2249
dc.identifier.urihttps://doi.org/10.1007/s10904-018-0899-3
dc.identifier.urihttps://hdl.handle.net/20.500.14669/2951
dc.identifier.volume28
dc.identifier.wosWOS:000449330700008
dc.identifier.wosqualityQ3
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherSpringer
dc.relation.ispartofJournal of Inorganic and Organometallic Polymers and Materials
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.snmzKA_20241211
dc.subjectReduction of 4-nitrophenol
dc.subjectGold decoration
dc.subjectSynergistic effect
dc.subjectHeterogeneous catalyst
dc.subjectMagnetically recoverable
dc.subjectMicro
dc.subjectnano particles
dc.titleGold-Nanoparticle Decorated Monosized Magnetic Polymer Based Catalyst: Reduction of 4-Nitrophenol
dc.typeArticle

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