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Process engineering studies on synthesis of gold nanoparticles by Turkevitch method

Process design of a reactor for gold nanoparticle (AuNP) synthesis requires reaction rate data and an appropriate kinetic model. In the present work, rate parameters for AuNP synthesis by Turkevitch method were investigated. Influences of process conditions-molar ratio of reactants (chloroauric acid...

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Main Authors:	Chakraborty, A., Ahmad, T., Abdullah, B.B., Bhattacharjee, S.
Format:	Article
Published:	Italian Association of Chemical Engineering - AIDIC 2015
Online Access:	https://www.scopus.com/inward/record.uri?eid=2-s2.0-84946121486&doi=10.3303%2fCET1545324&partnerID=40&md5=7fb1eec5696823178900827af33b6971 http://eprints.utp.edu.my/31609/
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spelling	my.utp.eprints.316092022-03-26T03:24:28Z Process engineering studies on synthesis of gold nanoparticles by Turkevitch method Chakraborty, A. Ahmad, T. Abdullah, B.B. Bhattacharjee, S. Process design of a reactor for gold nanoparticle (AuNP) synthesis requires reaction rate data and an appropriate kinetic model. In the present work, rate parameters for AuNP synthesis by Turkevitch method were investigated. Influences of process conditions-molar ratio of reactants (chloroauric acid to trisodium citrate:0.33-5.32) and temperature (333-373 K) of reaction medium on kinetic parameters were studied. From an Arrhenius plot activation energy for AuNP synthesis reaction was estimated to be 21.69 Â±2.3 kJ/mol suggesting that precursor reduction occurred in aqueous phase followed by diffusion controlled nucleation and aggregation of reduced metals ions forming larger nanoparticles. Increase or decrease of molar ratio beyond the optimal range (M = 0.75-1.35) led to slower reaction rate, larger particle diameter and formation of AuNPs, which were unsuitable for biological applications. Copyright Â© 2015, AIDIC Servizi S.r.l.,. Italian Association of Chemical Engineering - AIDIC 2015 Article NonPeerReviewed https://www.scopus.com/inward/record.uri?eid=2-s2.0-84946121486&doi=10.3303%2fCET1545324&partnerID=40&md5=7fb1eec5696823178900827af33b6971 Chakraborty, A. and Ahmad, T. and Abdullah, B.B. and Bhattacharjee, S. (2015) Process engineering studies on synthesis of gold nanoparticles by Turkevitch method. Chemical Engineering Transactions, 45 . pp. 1939-1944. http://eprints.utp.edu.my/31609/
institution	Universiti Teknologi Petronas
building	UTP Resource Centre
collection	Institutional Repository
continent	Asia
country	Malaysia
content_provider	Universiti Teknologi Petronas
content_source	UTP Institutional Repository
url_provider	http://eprints.utp.edu.my/
description	Process design of a reactor for gold nanoparticle (AuNP) synthesis requires reaction rate data and an appropriate kinetic model. In the present work, rate parameters for AuNP synthesis by Turkevitch method were investigated. Influences of process conditions-molar ratio of reactants (chloroauric acid to trisodium citrate:0.33-5.32) and temperature (333-373 K) of reaction medium on kinetic parameters were studied. From an Arrhenius plot activation energy for AuNP synthesis reaction was estimated to be 21.69 Â±2.3 kJ/mol suggesting that precursor reduction occurred in aqueous phase followed by diffusion controlled nucleation and aggregation of reduced metals ions forming larger nanoparticles. Increase or decrease of molar ratio beyond the optimal range (M = 0.75-1.35) led to slower reaction rate, larger particle diameter and formation of AuNPs, which were unsuitable for biological applications. Copyright Â© 2015, AIDIC Servizi S.r.l.,.
format	Article
author	Chakraborty, A. Ahmad, T. Abdullah, B.B. Bhattacharjee, S.
spellingShingle	Chakraborty, A. Ahmad, T. Abdullah, B.B. Bhattacharjee, S. Process engineering studies on synthesis of gold nanoparticles by Turkevitch method
author_facet	Chakraborty, A. Ahmad, T. Abdullah, B.B. Bhattacharjee, S.
author_sort	Chakraborty, A.
title	Process engineering studies on synthesis of gold nanoparticles by Turkevitch method
title_short	Process engineering studies on synthesis of gold nanoparticles by Turkevitch method
title_full	Process engineering studies on synthesis of gold nanoparticles by Turkevitch method
title_fullStr	Process engineering studies on synthesis of gold nanoparticles by Turkevitch method
title_full_unstemmed	Process engineering studies on synthesis of gold nanoparticles by Turkevitch method
title_sort	process engineering studies on synthesis of gold nanoparticles by turkevitch method
publisher	Italian Association of Chemical Engineering - AIDIC
publishDate	2015
url	https://www.scopus.com/inward/record.uri?eid=2-s2.0-84946121486&doi=10.3303%2fCET1545324&partnerID=40&md5=7fb1eec5696823178900827af33b6971 http://eprints.utp.edu.my/31609/
_version_	1738657271492116480
score	13.211869

Process engineering studies on synthesis of gold nanoparticles by Turkevitch method

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