Abstract
In this paper, TEM-EDX, FTIR, XPS, PIXE, and EPBS were employed to identify the uranium biosorption behavior and the potential mechanism on cells of Geotrichum sp. dwc-1, isolated from soils. These results displayed that the biosorption behavior was greatly dependent on pH and uranium was absorbed by bounding to amino, phosphate as well as carboxyl functional groups. Uranium biosorption behavior on Geotrichum sp. dwc-1 involves bioaccumulation, electrostatic interaction and ion exchange process. This work throws further light on potential fungal roles these mechanisms for elemental recovery and bioremediation.
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Acknowledgments
This work was financially supported by China National Natural Science Foundation (Grant Nos. 21071102, 91126013), NSAF (Grant No. U1330125), the National High Technology Research and Development Program of China (the State 863 Project, No. 2012AA063503) and the National Fund of China for Fostering Talents in Basic Science (J1210004).
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Zhao, C., Li, X., Ding, C. et al. 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 (2016). https://doi.org/10.1007/s10967-016-4797-2
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DOI: https://doi.org/10.1007/s10967-016-4797-2