Synthesis of Ag nanoparticles by a chitosan-poly(3-hydroxybutyrate) polymer conjugate and their superb catalytic activity

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dc.contributor.authorSilvestri, Daniele
dc.contributor.authorWacławek, Stanisław
dc.contributor.authorVenkateshaiah, Abhilash
dc.contributor.authorKrawczyk, Kamil
dc.contributor.authorSobel, Bartłomiej
dc.contributor.authorPadil, Vinod V.T.
dc.contributor.authorČerník, Miroslav
dc.contributor.authorVarma, Rajender S.
dc.date.accessioned2020-01-07T07:14:02Z
dc.date.available2020-01-07T07:14:02Z
dc.date.issued2020
dc.description.abstractThis work describes an eco-friendly and sustainable technique for the synthesis of silver nanoparticles (nAg), where chitosan-poly(3-hydroxybutyrate) polymer conjugate (Chit-PHB) acts as a reducing and stabilizing material. The ensuing nanoparticles show an exceptional catalytic activity in the reduction of 4-nitrophenol to 4-aminophenol. nAg were characterized by several techniques, i.e. SEM and TEM-EDX, to confirm their production, size and morphology. Furthermore, infrared spectroscopy analysis proved the presence of a Chit-PHB coating on the nAg. The excellent catalytic properties of the nAg-Chit-PHB was discernible when the activity parameter (κc) normalized by the specific surface area (SSA) of the nanoparticles was taken into consideration; normalization of κc by the SSA is a vital parameter for the assessment of the accessibility to the surface area of particles. Herein synthesized Ag nanoparticles, as far as we know, exhibited the fastest reaction kinetics of 4-nitrophenol reduction compared to the silver nanoparticles reported in the literaturecs
dc.identifier.doi10.1016/j.carbpol.2019.115806
dc.identifier.urihttps://dspace.tul.cz/handle/15240/154318
dc.identifier.urihttps://www.sciencedirect.com/science/article/pii/S0144861719314742
dc.language.isocscs
dc.publisherElsevier Ltd
dc.relation.ispartofCarbohydrate Polymers
dc.subject4-nitrophenolcs
dc.subjectBiopolymerscs
dc.subjectCatalytic reductioncs
dc.subjectGreen synthesiscs
dc.subjectSilver nanoparticlescs
dc.titleSynthesis of Ag nanoparticles by a chitosan-poly(3-hydroxybutyrate) polymer conjugate and their superb catalytic activitycs
local.article.number115806
local.identifier.publikace6935
local.relation.volume232
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