Betaine microgel preparation from 2-(methacryloyloxy) ethyl] dimethyl (3-sulfopropyl) ammonium hydroxide and its use as a catalyst system

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dc.authoridŞahiner, Nurettin / 0000-0003-0120-530X
dc.authoridDemirci, Şahin / 0000-0001-7083-1481
dc.contributor.authorAjmal, Muhammad
dc.contributor.authorDemirci, Şahin
dc.contributor.authorSiddiq, Mohammad
dc.contributor.authorAktaş, Nahit
dc.contributor.authorŞahiner, Nurettin
dc.date.accessioned2025-01-27T20:45:25Z
dc.date.available2025-01-27T20:45:25Z
dc.date.issued2015
dc.departmentÇanakkale Onsekiz Mart Üniversitesi
dc.description.abstractWe demonstrate the synthesis of poly(sulfobetain methacrylate) (p(SBMA)) hydrogels of micro dimensions by inverse suspension polymerization of a zwitterionic monomer 2-(methacryloyloxy) ethyl] dimethyl (3-sulfopropyl) ammonium hydroxide (SBMA). The prepared microgels were used as microreactors for the synthesis of nickel (Ni) nanoparticles by in situ reduction of Ni (II) loaded into microgels from an aqueous medium. The prepared microgels and microgel metal nanoparticle composites were characterized by Fourier Transformation Infrared (FT-IR) Spectroscopy, Scanning Electron Microscopy (SEM) and Transmission Electron Microscopy (TEM). Thermal properties of the microgels were studied by thermal gravimetric analysis (TGA). The amount of Ni nanoparticles generated within the microgels was determined by Atomic Absorption Spectroscopy (AAS) after dissolving the Ni nanoparticles to form Ni (II) ions by treating with concentrated hydrochloric acid (5 M HCl). The prepared composites were used as catalysts for the reduction of nitro aromatic compounds such as 4-nitrophenol (4-NP), 2-nitrophenol (2-NP) and 4-nitroaniline (4-NA) and excellent catalytic performances were observed. The effects of temperature and amount of catalyst were also evaluated. A mild activation energy in comparison to the literature was calculated as 35.64 kJ/mol, and very high k p value of 0.42 min(-1) as a function of temperature was estimated for the reduction of 4-NP catalyzed by p(SBMA)-Ni composite catalyst system. (C) 2015 Elsevier B.V. All rights reserved.
dc.description.sponsorshipScientific and Technological Research Council of Turkey [110T649]; Scientific and Technological Research Council of Turkey (TUBITAK) [TUBITAK 2216]
dc.description.sponsorshipFinancial support from the Scientific and Technological Research Council of Turkey (110T649) is greatly appreciated. M. Ajmal is grateful to the Scientific and Technological Research Council of Turkey (TUBITAK) for support under the TUBITAK 2216 research fellowship program.
dc.identifier.doi10.1016/j.colsurfa.2015.09.028
dc.identifier.endpage37
dc.identifier.issn0927-7757
dc.identifier.issn1873-4359
dc.identifier.scopus2-s2.0-84942156281
dc.identifier.scopusqualityQ1
dc.identifier.startpage29
dc.identifier.urihttps://doi.org/10.1016/j.colsurfa.2015.09.028
dc.identifier.urihttps://hdl.handle.net/20.500.12428/24563
dc.identifier.volume486
dc.identifier.wosWOS:000363961500005
dc.identifier.wosqualityQ2
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherElsevier
dc.relation.ispartofColloids and Surfaces A-Physicochemical and Engineering Aspects
dc.relation.publicationcategoryinfo:eu-repo/semantics/openAccess
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.snmzKA_WoS_20250125
dc.subjectHydrogel/Microgel betaine
dc.subjectZwitterionic microgel
dc.subjectNi nanoparticles
dc.subjectCatalysis
dc.titleBetaine microgel preparation from 2-(methacryloyloxy) ethyl] dimethyl (3-sulfopropyl) ammonium hydroxide and its use as a catalyst system
dc.typeArticle

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