1. 溶液酸化を含む磁性沈殿プロセスに対する超音波の影響

DOI

書誌事項

タイトル別名
  • 1. Effect of Ultrasound on Magnetic Particles Synthesis Involving Oxidation Process
公開日
2000
DOI
  • 10.20577/pamjss.9.0_10
公開者
日本ソノケミストリー学会

説明

Iron (II) hydroxide was oxidized in an ultrasonic-activated solution to produce α-FeOOH (goethite) or Fe_3O_4 (magnetite). This process involves the dissolution of Fe(OH)_2, the oxidation of Fe^<2+> to Fe^<3+>, and the precipitation of the products. It was found that the ultrasonic treatment greatly fasten the appearance and the growth of the products if oxygen was sufficiently supplied. When the oxygen supply was insufficient, on the other hand, an obvious phenomenon of sonochemical switching due to the enhanced oxidation was observed; that is, ultrasound promoted the α-FeOOH formation and suppressed the formation of Fe_3O_4 which has lower oxidation number (Fe=+8/3) than α-FeOOH (Fe=+3).

収録刊行物

詳細情報 詳細情報について

  • CRID
    1390001206052594432
  • NII論文ID
    110009710080
  • DOI
    10.20577/pamjss.9.0_10
  • ISSN
    24241512
  • 本文言語コード
    ja
  • データソース種別
    • JaLC
    • CiNii Articles
  • 抄録ライセンスフラグ
    使用不可

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