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Preparation of Ag nanoparticles using hydrogen peroxide as a reducing agent

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Title: Preparation of Ag nanoparticles using hydrogen peroxide as a reducing agent
Authors: Nishimoto, Masamu Browse this author
Abe, Shigeaki Browse this author
Yonezawa, Tetsu Browse this author →KAKEN DB
Issue Date: 7-Sep-2018
Publisher: Royal Society of Chemistry
Journal Title: New journal of chemistry
Volume: 42
Issue: 17
Start Page: 14493
End Page: 14501
Publisher DOI: 10.1039/c8nj01747f
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.
Type: article (author version)
Appears in Collections:工学院・工学研究院 (Graduate School of Engineering / Faculty of Engineering) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 米澤 徹

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