eprintid: 5701
rev_number: 2
eprint_status: archive
userid: 1
dir: disk0/00/00/57/01
datestamp: 2023-11-09 16:17:26
lastmod: 2023-11-09 16:17:26
status_changed: 2023-11-09 16:03:37
type: article
metadata_visibility: show
creators_name: Chakraborty, A.
creators_name: Ahmad, T.
creators_name: Abdullah, B.B.
creators_name: Bhattacharjee, S.
title: Process engineering studies on synthesis of gold nanoparticles by Turkevitch method
ispublished: pub
keywords: Activation energy; Arrhenius plots; Gold; Kinetic parameters; Metal nanoparticles; Nanoparticles; Reaction kinetics; Reaction rates, Biological applications; Diffusion controlled; Gold nanoparticle; Gold Nanoparticles; Particle diameters; Process condition; Synthesis reaction; Tri-sodium citrates, Synthesis (chemical)
note: cited By 5
abstract: 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 ±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 © 2015, AIDIC Servizi S.r.l.,.
date: 2015
publisher: Italian Association of Chemical Engineering - AIDIC
official_url: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84946121486&doi=10.3303%2fCET1545324&partnerID=40&md5=7fb1eec5696823178900827af33b6971
id_number: 10.3303/CET1545324
full_text_status: none
publication: Chemical Engineering Transactions
volume: 45
pagerange: 1939-1944
refereed: TRUE
isbn: 9788895608365
issn: 22839216
citation:   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.  ISSN 22839216