Solid substrates decorated with Ag nanostructures for the catalytic degradation of methyl orange

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buir.contributor.authorÖnses, M. Serdar
dc.citation.epage1141en_US
dc.citation.spage1133en_US
dc.citation.volumeNumber12en_US
dc.contributor.authorŞakır, M.en_US
dc.contributor.authorÖnses, M. Serdaren_US
dc.date.accessioned2020-02-06T10:28:25Z
dc.date.available2020-02-06T10:28:25Z
dc.date.issued2018
dc.departmentInstitute of Materials Science and Nanotechnology (UNAM)en_US
dc.departmentNanotechnology Research Center (NANOTAM)en_US
dc.description.abstractThere is a strong demand for development of catalytically active solid substrates for heterogeneous catalysis applications. This study reports fully solution-processable and scalable fabrication of solid substrates decorated with Ag nanostructures for the degradation of organic dyes. Ag nanostructures were prepared by direct surface-growth from Pt nanoparticles that were immobilized on Si substrates modified with a layer of end-grafted poly(2-vinylpyridine). The proper choice of the growth conditions and seed-selective growth from Pt nanoparticles were critically important in fabricating Ag nanostructures with high catalytic activity and large surface coverage. The catalytic performance of the presented platform was studied by the reduction of methyl orange by borohydride ions and monitored using UV–visible spectrometry. The substrates exhibited high catalytic activity enabling degradation of 10−5 M methyl orange solution in less than an hour with an apparent reaction rate constant of 33.5 × 10−3 min−1. The substrates can be easily removed from the degradation medium and used multiple times. Our approach presents an effective strategy for waste water management applications avoiding the agglomeration and separation issues of colloidal catalysts and overcoming the need for tedious and costly fabrication of thin films.en_US
dc.identifier.doi10.1016/j.rinp.2018.12.084en_US
dc.identifier.issn2211-3797
dc.identifier.urihttp://hdl.handle.net/11693/53132
dc.language.isoEnglishen_US
dc.publisherElsevieren_US
dc.relation.isversionofhttps://doi.org/10.1016/j.rinp.2018.12.084en_US
dc.source.titleResults in Physicsen_US
dc.subjectCatalytically active surfacesen_US
dc.subjectAg nanostructuresen_US
dc.subjectPolymer thin filmsen_US
dc.subjectCatalytic degradationen_US
dc.subjectMethyl orangeen_US
dc.titleSolid substrates decorated with Ag nanostructures for the catalytic degradation of methyl orangeen_US
dc.typeArticleen_US
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