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Controllable Synthesis of Silver Nanoparticles Using Piezoelectric-Actuated High-Frequency Vibration Self-Circulating Microfluidic Reactor

Guojun Liu

College of Mechanical and Aerospace Engineering, Jilin University, 130025 Changchun, P. R. China

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Fang He

College of Mechanical and Aerospace Engineering, Jilin University, 130025 Changchun, P. R. China

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Yan Li

http://orcid.org/0000-0002-1279-2426

Emergency Department, China-Japan Union Hospital of Jilin University, Changchun, P. R. China

E-mail Address: 317612027@qq.com

Corresponding author.

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Xinbo Li

College of Communication Engineering, Jilin University, 130025 Changchun, P. R. China

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Hong Zhao

Scientific Research Center, China-Japan Union Hospital of Jilin University, Changchun, P. R. China

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Conghui Wang

College of Mechanical and Aerospace Engineering, Jilin University, 130025 Changchun, P. R. China

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Conghong Zhan

College of Chemistry, Jilin University, Changchun, P. R. China

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, and

Chunxiu Tang

College of Mechanical and Aerospace Engineering, Jilin University, 130025 Changchun, P. R. China

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https://doi.org/10.1142/S1793292019500978Cited by:4 (Source: Crossref)

Abstract

Based on the liquid-phase reduction mechanism, a controllable synthesis method, which uses piezoelectric-actuated high-frequency vibration self-circulating microfluidic reactor, to prepare silver nanoparticles is proposed. Firstly, the synthesis mechanism of silver nanoparticles and the working principle of the microfluidic reactor were analyzed. Then, in order to study and explore the influence of self-circulating and high frequency vibration on the synthesis of silver nanoparticles, a series of related synthesis experiments were carried out. The synthesized silver nanoparticles were characterized by UV-Visible spectroscopy and transmission electron microscopy. The effects of micropump driving voltage and high-frequency vibration on the synthesis of silver nanoparticles were analyzed. The experiment results show that when the silver nanoparticles were synthesized using piezoelectric-actuated high-frequency vibration self-circulating microfluidic reactor, the higher the driving voltage of the circulating reflux micropump, the faster the vortex rotation speed in the mixing pool and the more uniform the reagent reaction. Besides, high-frequency vibration can suppress the aggregation of silver nanoparticles, and balance the growth environment of particles, which is beneficial to the formation of silver nanoparticles with good monodispersity, high sphericity and small size deviation.

Keywords:

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