Abstract
Goethites samples substituted (5 % and 33 %) by aluminium were synthesized and characterized by X-ray diffraction. Their bacterial reductive dissolution was investigated and compared to that obtained with non-substituted goethite. Bacterial fermentation and reduction processes are not significantly modified by the presence of Al, however, the dissolution rates of iron decreased with increasing Al substitution and Al released incongruently with Fe. The nature and the concentration of substituted metals are of fundamental interest in these microbial weathering processes.
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Schedule a callMore From: Comptes Rendus de l'Académie des Sciences - Series IIA - Earth and Planetary Science
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