Photochemical Morphology Control of Metal Nanoparticles Based on Their Plasmonic Absorption

2016 Fiscal Year Final Research Report

• Project/Area Number: 15K14203
• Research Category: Grant-in-Aid for Challenging Exploratory Research
• Allocation Type: Multi-year Fund
• Research Field: Properties in chemical engineering process/Transfer operation/Unit operation
• Research Institution: Osaka University
• Principal Investigator: Hirai Takayuki 大阪大学, 太陽エネルギー化学研究センター, 教授 (80208800)
• Project Period (FY): 2015-04-01 – 2017-03-31
• Keywords: 金属ナノ粒子 / プラズモン / 光化学 / 調製 / サイズ制御 / モルフォロジー / 液相合成 / 金

Outline of Final Research Achievements

We have studied a new method for preparation of metal nanoparticles such as gold, silver, and copper by “light”. We successfully developed a new method consisting of photoirradiation of water containing metal precursors and photoresponsive reducing agent. In that, the added reducing agent behaves as a surface stabilizing agent that suppresses aggregation of the formed metal nanoparticles. The proposed method facilitates the formation of metal nanoparticles with tunable sizes and narrow size distributions.

Free Research Field

光触媒