Retardation of the migration of radionuclides by nitratereducing microorganisms

本文研究了Co和锕系元素(Th(IV), Np（V)， U(VI)）在生物氧化锰上的吸附行为。与非生物合成的氧化锰δ-二氧化锰相比，生物合成的氧化锰表现出截然不同的吸附行为。生物源性氧化锰的特殊吸附行为可能与生物源性氧化锰与δ- mno2的结构差异以及微生物释放的有机配体有关。

In this study, adsorption behavior of Co and actinides(Th(IV), Np(V), U(VI)) on biogenic Mn oxide was examined. Compared with abiotically synthesized Mn oxidδ-MnO2, biogenic Mn oxide showed rather contrasting adsorption behavior. The specific adsorption behavior of the biogenic Mn oxide was possibly attributed to the structural difference between biogenic Mn oxide andδ-MnO2, and organic ligands released from microorganisms.