A reduction mechanism of U( ) on Shewanella oneidensis by spectral analysis

DOI

10.2991/ifeesm-15.2015.254How to use a DOI?

Keywords

Shewanella oneidensis; U(VI); mechanism; infrared spectroscopy; scanning electron microscopy; energy dispersive spectrometer.

Abstract

In order to realize the process mechanism that Shewanella oneidensis(S. oneidensis ) reduced uranium(VI), and improve its reduction effect, the reduction mechanisms of uranium with S. oneidensis were studied by FTIR, SEM, EDS. The results show that after the S. oneidensis reduction of U(VI), the cell surface morphology is changed, the gaps and caverns on S. oneidensis surface decrease and more uncrystalmini grains through electron appear, which are binding each other. Much of new crystal structures were generated on the surface of cell. K+ and PO43+ were involved in the process of U(VI) reduction. FT IR spectra analysis indicated that the main groups of S. oneidensis were association of hydroxyl, phenolic hydroxyl, amidogent, halogenated hydrocarbon, carboxyl in the process of U ( ) reduction.

Copyright

© 2015, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Jinxiang Liu
AU  - Fen Xiong
AU  - Lishan Rong
AU  - Shiyou Li
AU  - Shuibo Xie
PY  - 2015/09
DA  - 2015/09
TI  - A reduction mechanism of U( ) on Shewanella oneidensis by spectral analysis
BT  - Proceedings of the 2015 International Forum on Energy, Environment Science and Materials
PB  - Atlantis Press
SP  - 1398
EP  - 1403
SN  - 2352-5401
UR  - https://doi.org/10.2991/ifeesm-15.2015.254
DO  - 10.2991/ifeesm-15.2015.254
ID  - Liu2015/09
ER  -