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Faculty of Sciences
Document Details
Document Type
:
Article In Journal
Document Title
:
Little Adjustments Significantly Improve the Turkevich Synthesis of Gold Nanoparticles
Little Adjustments Significantly Improve the Turkevich Synthesis of Gold Nanoparticles
Document Language
:
English
Abstract
:
In this report, we show how the classical and widely used Turkevich synthesis can be improved significantly by simple adjustments. The gold nanoparticles (AuNPs) produced with the optimized protocol have a much narrower size distribution (5-8% standard deviation), and their diameters can be reproduced with unrivaled little variation (<3%). Moreover, large volumes of these particles can be produced in one synthesis; we routinely synthesize 1000 mL of similar to 3.5 nM AuNPs. The key features of the improved protocol are the control of the pH by using a citrate buffer instead of a citrate solution as the reducing agent or stabilizer and optimized mixing of reagents. Further, the shape uniformity of the particles can be improved by addition of 0.02 mM EDTA. While the proposed protocol is as straightforward as the original Turkevich protocol, it is more tolerant against variations in precursor concentration.
ISSN
:
0743-7463
Journal Name
:
LANGMUIR
Volume
:
30
Issue Number
:
35
Publishing Year
:
1435 AH
2014 AD
Article Type
:
Article
Added Date
:
Monday, August 21, 2017
Researchers
Researcher Name (Arabic)
Researcher Name (English)
Researcher Type
Dr Grade
Email
F Schulz
Schulz, F
Researcher
T Homolka
Homolka, T
Researcher
NG Bastus
Bastus, NG
Researcher
V Puntes
Puntes, V
Researcher
H Weller
Weller, H
Researcher
T Vossmeyer
Vossmeyer, T
Researcher
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