Selective sorption of Co[2+] over Ni[2+] using biogenic manganese oxides

• Sasaki Keiko

  Department of Earth Resources Engineering, Kyushu University

• Kaseyama Takuya

  Department of Earth Resources Engineering, Kyushu University

• Hirajima Tsuyoshi

  Department of Earth Resources Engineering, Kyushu University

書誌事項

タイトル別名

• Selective Sorption of Co<SUP>2+</SUP> over Ni<SUP>2+</SUP> Using Biogenic Manganese Oxides
• Selective sorption of Co(II) over Ni(II) using biogenic manganese oxides

抄録

Preferential sorption of Co²⁺ ions over Ni²⁺ ions was achieved using biogenic Mn oxides produced by the Mn-oxidizing fungus Paraconiothyrium sp. WL-2 strain with a maximum selectivity coefficient (α_Co) of 18. The selective sorption was based on different sorption mechanism for Co²⁺ and Ni²⁺ and unique properties of biogenic Mn oxides. The octahedral Co²⁺ ions occupy vacancies of central metal sites and edge sites in the octahedral Mn oxide unit structures of biogenic Mn oxides, where they are immobilized by oxidation to CoOOH by Mn(III). In contrast, Ni²⁺ ions are sorbed primarily on layer edges at circumneutral pHs without oxidation. Selective sorption of Co²⁺ over Ni²⁺ on the biogenic Mn oxides results from more vacant sites, higher Mn(III) contents, and larger specific surface areas compared to synthetic Mn oxides.

収録刊行物

• MATERIALS TRANSACTIONS

  MATERIALS TRANSACTIONS 50 (11), 2643-2648, 2009

  公益社団法人 日本金属学会

キーワード

• selective sorption
• cobalt ions
• biogenic manganese oxides
• selectivity coefficient

詳細情報

• CRID: 1390282679225997440
• NII論文ID: 10025559179
• NII論文ID: 130004454147
• NII書誌ID: AA1151294X
• DOI: 10.2320/matertrans.m-m2009821
• ISSN: 13475320
• ISSN: 13459678
• NDL書誌ID: 10417941
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I10417941
• Web Site: https://www.jstage.jst.go.jp/article/matertrans/50/11/50_M-M2009821/_pdf
• 本文言語コード: en
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