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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2019.1
- 수록면
- 1,322 - 1,332 (11page)
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In this paper, we systematically investigated the influence of some selected ligands on the U-phosphateprecipitation induced by soil bacteria. These organics are widely ranging from acetate, lactate, salicylateand citrate to oxalate. The results revealed that uranium could be biomineralized on bacteria asUO2HPO4$4H2O or (UO2)3(PO4)2$4H2O. The influence of organic ligands on the biomineralization hadclear-cut correlations with its complexation abilities to uranyl. It was clearly found that the U-phosphatebiomineralization was affected noticeably by the strong ligands (oxalate and citrate). Further studydiscovered that when the organic ligands were uncompetitive with biotic PO4 3 for uranyl, the transformationof uranyl species from b-UO2(OH)2 colloidal particles to free UO2 2 þ-ligands ions could facilitatethe U-phosphate biomineralization. However, when the organic ligands competed with biotic PO4 3 foruranyl, the U-phosphate biomineralization were inhibited. Our results highlight the importance ofcomplex interactions of strong organic ligands with uranyl during the bacterial precipitation of UePcompounds and thus for the mobilization and immobilization of radio-nuclides in the nature
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참고문헌 (72)
참고문헌 신청
M.I. Boyanov / 2011 / Solution and microbial controls on the formation of reduced U(IV) species / Environ. Sci. Technol 45:8336~8344
R. Bernier-Latmani / 2010 / Non-uraninite products of microbial U(VI) reduction / Environ. Sci. Technol 44:9456~9462
R.A. Crane / 2011 / Magnetite and zero-valent iron nanoparticles for the remediation of uranium contaminated environmental water / Water Res 45:2931~2942
C.S. Zhao / 2016 / Characterization of uranium bioaccumulation on a fungal isolate Geotrichum sp dwc-1 as investigated by FTIR, TEM and XPS / J. Radioanal. Nucl. Chem 310:165~175
M. Ghasemi / 2011 / Biosorption of uranium(VI) from aqueous solutions by Ca-pretreated Cystoseira indica alga: breakthrough curves studies and modeling / J. Hazard Mater 189:141~149
R. Bernier-Latmani / 2010 / Non-uraninite products of microbial U(VI) reduction / Environ. Sci. Technol 44:9456~9462
R.A. Crane / 2011 / Magnetite and zero-valent iron nanoparticles for the remediation of uranium contaminated environmental water / Water Res 45:2931~2942
C.S. Zhao / 2016 / Characterization of uranium bioaccumulation on a fungal isolate Geotrichum sp dwc-1 as investigated by FTIR, TEM and XPS / J. Radioanal. Nucl. Chem 310:165~175
M. Ghasemi / 2011 / Biosorption of uranium(VI) from aqueous solutions by Ca-pretreated Cystoseira indica alga: breakthrough curves studies and modeling / J. Hazard Mater 189:141~149
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