P(HMA-co-ATU) hydrogel synthesis via gamma radiation and its use for in situ metal nanoparticle preparation and as catalyst in 4-nitrophenol reduction

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dc.authoridDemirci, Şahin / 0000-0001-7083-1481
dc.authoridŞahiner, Nurettin / 0000-0003-0120-530X
dc.authoridAri, Betül / 0000-0003-3557-3055
dc.contributor.authorGüven, Olgun
dc.contributor.authorDemirci, Şahin
dc.contributor.authorSütekin, S. Duygu
dc.contributor.authorAri, Betül
dc.contributor.authorŞahiner, Nurettin
dc.date.accessioned2025-01-27T20:52:01Z
dc.date.available2025-01-27T20:52:01Z
dc.date.issued2022
dc.departmentÇanakkale Onsekiz Mart Üniversitesi
dc.description.abstractHydrogels with reactive thiourea functional groups were prepared by radiation-induced crosslinking of N-(Hydroxymethyl) acrylamide (HMA) and N-allyl thiourea (ATU) at different ATU content and irradiation doses. P (HMA-co-ATU) hydrogels were then utilized as template for in situ metal nanoparticle (MNP) preparation by the reduction of Ni2+, Co2+, and Cu(2+)ions within the hydrogel matrix using sodium borohydride (NaBH4) as reducing agent. These MNP@p(HMA-co-ATU) hydrogel composites (MNP = Co, Ni, and Cu) were further used as catalysts in the reduction reaction of 4-nitrophenol (4-NP) to 4-aminophenol (AP). Various parameters such as the effect of ATU content, the total dose used in the hydrogel preparation, MNPs type, and temperature on the catalytic activity of hydrogel composites were investigated. The activation energy, enthalpy, and entropy of Ni@p(HMA-co-ATU) hydrogels for the reduction reaction of 4-NP to 4-AP were calculated as 42.5 kJ mol-1, 38.9 kJ mol(-1), and-187.3 J mol(-1) K-1, respectively.
dc.identifier.doi10.1016/j.radphyschem.2022.110217
dc.identifier.issn0969-806X
dc.identifier.issn1879-0895
dc.identifier.scopus2-s2.0-85130352572
dc.identifier.scopusqualityQ1
dc.identifier.urihttps://doi.org/10.1016/j.radphyschem.2022.110217
dc.identifier.urihttps://hdl.handle.net/20.500.12428/25627
dc.identifier.volume198
dc.identifier.wosWOS:000807764800003
dc.identifier.wosqualityQ1
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherPergamon-Elsevier Science Ltd
dc.relation.ispartofRadiation Physics and Chemistry
dc.relation.publicationcategoryinfo:eu-repo/semantics/openAccess
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.snmzKA_WoS_20250125
dc.subjectN-(Hydroxymethyl) acrylamide
dc.subjectN-allyl thiourea
dc.subjectGamma irradiation
dc.subjectMetal nanoparticle
dc.subjectHydrogel composites
dc.subjectCatalytic 4-nitrophenol reduction
dc.titleP(HMA-co-ATU) hydrogel synthesis via gamma radiation and its use for in situ metal nanoparticle preparation and as catalyst in 4-nitrophenol reduction
dc.typeArticle

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