A Specific Ce oxidation process during sorption of rare earth elements on biogenic Mn oxide produced by Acremonium sp. strain KR21-2

Tanaka, Kazuya ; Tani, Yukinori*; Takahashi, Yoshio*; Tanimizu, Masaharu*; Suzuki, Yoshinori*; Kozai, Naofumi ; Onuki, Toshihiko

We carried out sorption experiments of Ce by biogenic Mn oxide produced by a Mn(II)-oxidizing fungus strain KR21-2. The results of the sorption experiments indicated that Ce(III) was oxidized to Ce(IV) by biogenic Mn oxide in solution with pH 3.8 - 7. Furthermore, oxidized Ce(IV) by biogenic Mn oxide was complexed with organic ligands released from fungal cells under circumneutral conditions.

Language	:	English
Journal	:	Geochimica et Cosmochimica Acta
Volume	:	74
Number	:	19
Pages	:	p.5463 - 5477
Publication Year/Month	:	2010/10
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Paper URL	:	https://doi.org/10.1016/j.gca.2010.07.010
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Keywords	:	no keyword
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Registration No. : AA20100307
JAEA Abstracts No. : 38001285
Paper Submission No. : 7920

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