Droplet synthesis of silver nanoparticles by a microfluidic device

•Silver nanoparticles are synthesized by aqueous reduction in a microfluidic chip.•With decreases the NaBH4/AgNO3 molar concentration ratio results in a particle diameter increased.•The mean particle diameter increased with an increase in the fluid flow rate. Silver nanoparticles are synthesized by...

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Bibliographic Details
Published in:Chemical engineering and processing 2016-04, Vol.102, p.186-193
Main Authors: Xu, Lei, Peng, Jinhui, Yan, Mi, Zhang, Di, Shen, Amy Q.
Format: Article
Language:English
Subjects:
Droplet synthesis
Microfluidics
Reduction method
Silver nanoparticles
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Summary:•Silver nanoparticles are synthesized by aqueous reduction in a microfluidic chip.•With decreases the NaBH4/AgNO3 molar concentration ratio results in a particle diameter increased.•The mean particle diameter increased with an increase in the fluid flow rate. Silver nanoparticles are synthesized by the reduction of metal salt solutions from sodium borohydride in a microfluidic chip. The influence of different operating conditions on silver particle diameter, morphology, size distribution, and elemental compositions has been investigated. The results demonstrated that ethylenediaminetetraacetic acid (EDTA) serving as a complexant significantly affected the particle size of synthesized silver nanoparticles. An increase in the silver nanoparticle mean diameter was observed with decreasing NaBH4/AgNO3 molar concentration ratios, and increasing fluid flow rates.
ISSN:0255-2701
1873-3204
DOI:10.1016/j.cep.2016.01.017