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Preparation of Ag nanoparticles using hydrogen peroxide as a reducing agent

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Abstract

Herein, we report a method for Ag nanoparticle preparation using hydrogen peroxide as a reducing agent. Ag nanoparticles were synthesized using silver(I) nitrate as a silver precursor, aqueous NH3 as a pH adjustor, and poly(vinyl pyrrolidone) (PVP) as a dispersant. The PVP concentration, the reaction temperature, the pH of the reaction solution, and the silver precursor all have a great influence on the size of the Ag nanoparticles. These parameters affected the reduction speed of the Ag+ ions and the aggregation of Ag nanoparticles. Ag nanoparticles of uniform shape were obtained under optimized conditions. In this work, we discuss a Ag nanoparticle growth mechanism based on La Mer's model, and aggregation control using PVP. This is a promising Ag nanoparticle preparation method with a low environmental load. Antibacterial tests using the obtained Ag nanoparticles were also carried out.

Graphical abstract: Preparation of Ag nanoparticles using hydrogen peroxide as a reducing agent

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Publication details

The article was received on 11 Apr 2018, accepted on 27 Jul 2018 and first published on 27 Jul 2018


Article type: Paper
DOI: 10.1039/C8NJ01747F
Citation: New J. Chem., 2018, Advance Article
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    Preparation of Ag nanoparticles using hydrogen peroxide as a reducing agent

    M. Nishimoto, S. Abe and T. Yonezawa, New J. Chem., 2018, Advance Article , DOI: 10.1039/C8NJ01747F

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