Facet Dependence of Biosynthesis of Vivianite from Iron Oxides by Geobacter sulfurreducens.

ABSTRACT: Vivianite plays an important role in alleviating the phosphorus crisis and phosphorus pollution. The dissimilatory iron reduction has been found to trigger the biosynthesis of vivianite in soil environments, but the mechanism behind this remains largely unexplored. Herein, by regulating the crystal surfaces of iron oxides, we explored the influence of different crystal surface structures on the synthesis of vivianite driven by microbial dissimilatory iron reduction. The results showed that different crystal faces significantly affect the reduction and dissolution of iron oxides by microorganisms and the subsequent formation of vivianite. In general, goethite is more easily reduced by Geobacter sulfurreducens than hematite. Compared with Hem_{100} and Goe_L{110}, Hem_{001} and Goe_H{

SUBMITTER: Luo X 

PROVIDER: S-EPMC10002410 | biostudies-literature | 2023 Feb

REPOSITORIES: biostudies-literature