A comparative study of gold nanoparticles synthesized with a 'green' approach

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F46747885%3A24620%2F18%3A00005667" target="_blank" >RIV/46747885:24620/18:00005667 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

A comparative study of gold nanoparticles synthesized with a 'green' approach

Popis výsledku v původním jazyce

Nowadays 'green' synthesis of gold nanoparticles (Au NPs), utilizing organic compounds as a reducing and stabilizing agents (e.g. plant extracts, biodegradable polymers), is gaining considerable attention. This approach of nanoparticle synthesis gives the opportunity to avoid often expensive and harmful substances for the environment. In this paper, Au NPs were synthesized, for the first time, by two natural materials - tarragon plant extract and PHB-chitosan polymer conjugate. The analysis of gold nanoparticles was provided by Vis spectroscopy and scanning electron microscopy (SEM). Moreover, the stability of Au NPs was determined by zeta potential analysis whereas their size by differential centrifugal sedimentation (DCS) technique. It was found that the mean size of Au NPs was 7 and 30 nm for the particles reduced with PHB-chitosan polymer conjugate and tarragon plant extract, respectively. Furthermore, the catalytic properties of thus synthesized nanoparticles were compared toward 4-nitrophenol reduction. It was determined that at the optimal conditions the pseudo first-order kinetic rate constant was 0.74 and 0.29 min-1 for the processes involving Au NPs synthesized by PHB-chitosan polymer conjugate and tarragon plant extract, respectively.

Název v anglickém jazyce

A comparative study of gold nanoparticles synthesized with a 'green' approach

Popis výsledku anglicky

Nowadays 'green' synthesis of gold nanoparticles (Au NPs), utilizing organic compounds as a reducing and stabilizing agents (e.g. plant extracts, biodegradable polymers), is gaining considerable attention. This approach of nanoparticle synthesis gives the opportunity to avoid often expensive and harmful substances for the environment. In this paper, Au NPs were synthesized, for the first time, by two natural materials - tarragon plant extract and PHB-chitosan polymer conjugate. The analysis of gold nanoparticles was provided by Vis spectroscopy and scanning electron microscopy (SEM). Moreover, the stability of Au NPs was determined by zeta potential analysis whereas their size by differential centrifugal sedimentation (DCS) technique. It was found that the mean size of Au NPs was 7 and 30 nm for the particles reduced with PHB-chitosan polymer conjugate and tarragon plant extract, respectively. Furthermore, the catalytic properties of thus synthesized nanoparticles were compared toward 4-nitrophenol reduction. It was determined that at the optimal conditions the pseudo first-order kinetic rate constant was 0.74 and 0.29 min-1 for the processes involving Au NPs synthesized by PHB-chitosan polymer conjugate and tarragon plant extract, respectively.

Druh

D - Stať ve sborníku

CEP obor

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OECD FORD obor

21001 - Nano-materials (production and properties)

Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2018

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

NANOCON 2017 - Conference Proceedings, 9th International Conference on Nanomaterials - Research and Application

ISBN

9788087294819

ISSN

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e-ISSN

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Počet stran výsledku

6

Strana od-do

416-421

Název nakladatele

Tanger Ltd.

Místo vydání

Ostrava

Místo konání akce

Brno

Datum konání akce

1. 1. 2017

Typ akce podle státní příslušnosti

EUR - Evropská akce

Kód UT WoS článku

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