Microbial reduction of metal-organic frameworks enables synergistic chromium removal.

ABSTRACT: Redox interactions between electroactive bacteria and inorganic materials underpin many emerging technologies, but commonly used materials (e.g., metal oxides) suffer from limited tunability and can be challenging to characterize. In contrast, metal-organic frameworks exhibit well-defined structures, large surface areas, and extensive chemical tunability, but their utility as microbial substrates has not been examined. Here, we report that metal-organic frameworks can support the growth of the metal-respiring bacterium Shewanella oneidensis, specifically through the reduction of Fe(III). In a practical application, we show that cultures containing S. oneidensis and reduced metal-organic frameworks can remediate lethal concentrations of Cr(VI) over multiple cycles, and that pollutant remova

SUBMITTER: Springthorpe SK 

PROVIDER: S-EPMC6861306 | biostudies-literature | 2019 Nov

REPOSITORIES: biostudies-literature