TY  - JOUR
SN  - 22839216
PB  - Italian Association of Chemical Engineering - AIDIC
EP  - 1944
AV  - none
SP  - 1939
TI  - Process engineering studies on synthesis of gold nanoparticles by Turkevitch method
N1  - cited By 5
Y1  - 2015///
VL  - 45
UR  - https://www.scopus.com/inward/record.uri?eid=2-s2.0-84946121486&doi=10.3303%2fCET1545324&partnerID=40&md5=7fb1eec5696823178900827af33b6971
A1  - Chakraborty, A.
A1  - Ahmad, T.
A1  - Abdullah, B.B.
A1  - Bhattacharjee, S.
JF  - Chemical Engineering Transactions
KW  - Activation energy; Arrhenius plots; Gold; Kinetic parameters; Metal nanoparticles; Nanoparticles; Reaction kinetics; Reaction rates
KW  -  Biological applications; Diffusion controlled; Gold nanoparticle; Gold Nanoparticles; Particle diameters; Process condition; Synthesis reaction; Tri-sodium citrates
KW  -  Synthesis (chemical)
ID  - scholars5701
N2  - 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.,.
ER  -