Aging of starting solutions for nanoparticles synthesis with two different ultrasonication

Naoya Enomoto, Minami Matsuo, Miki Inada, Katsuro Hayashi, Junichi Hojo

研究成果: ジャーナルへの寄稿学術誌査読

3 被引用数 (Scopus)


Novel concept of aging starting solutions for nanoparticle synthesis and the application of two different sonication to aging is introduced. In sonoprocess of nanoparticles from liquid phase, it is usual to irradiate ultrasound to a reacting solution during synthesis. In this work, ultrasound is applied to a starting solution before synthesis. In case of the SiO2 sphere synthesis, the aging process elongated the induction period of the precipitation, enlarge the sphere size, and enhanced the monodispersity of silica spheres. These effects were promoted by soft sonication at subtle power (~1 mW). In case of the TiO2 sphere case, ordinary (cavitating) ultrasound during synthesis was found to be effective in more spherical shape. Also, the sonication to aging of the starting solution was useful for uniform spheres synthesis. Existence of miscible liquid such as water-ethanol and feasible relationship to the nucleation of nanoparticles are discussed.

ジャーナルUltrasonics Sonochemistry
出版ステータス出版済み - 10月 2020

!!!All Science Journal Classification (ASJC) codes

  • 化学工学(その他)
  • 放射線学、核医学およびイメージング
  • 無機化学
  • 音響学および超音波学
  • 環境化学
  • 有機化学


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