Effects of metal ions and organic ligands on the adsorption of Co(II) onto silicagel

Susumu Osaki, Yasuhiro Kuroki, Shinji Sugihara, Yoshimasa Takashima

研究成果: Contribution to journalArticle査読

16 被引用数 (Scopus)

抄録

Cobalt(II) ions were adsorbed onto silicagel from solutions containing metal ions and organic ligands. Levels of < 10-4 M Ca(II), Zn(II), Fe(III) and Mn(II) did not affect adsorption, while 10-3 M Fe(III) and Mn, as hydroxides, enhanced adsorption in the low pH region. Glycine, nitrilotriacetic acid (NTA) and ethylenediaminetetraacetic acid (EDTA) lower the rate of adsorption, as the surface complexation model predicts, but ethylenediamine did not interfere with adsorption. Humic and fulvic acids lowered the rate of adsorption in approximately the same manner as glycine. These effects are discussed in relation to the application of the surface complexation model to the adsorption of trace metal ions on particulates in fresh waters.

本文言語英語
ページ(範囲)93-103
ページ数11
ジャーナルScience of the Total Environment, The
99
1-2
DOI
出版ステータス出版済み - 12 1 1990

All Science Journal Classification (ASJC) codes

  • 環境工学
  • 環境化学
  • 廃棄物管理と処理
  • 汚染

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