Facilitated biological reduction of nitroaromatic compounds by reduced graphene oxide and the role of its surface characteristics.

ABSTRACT: How reduced graphene oxide (RGO) mediates the reductive transformation of nitroaromatic pollutants by mixed cultures and the role of its surface characteristics were evaluated in this study. Different electron donors were applied to investigate the interaction between RGO and anaerobic microbes. Moreover, the influence of the surface properties of RGO on biological nitroaromatic removal was further elucidated. The results show that RGO could achieve an approximate one-fold rate increase of nitrobenzene reduction by mixed culture with glucose as an electron donor. Selective elimination of oxygen moieties on the RGO surface, such as quinone groups, decreased the nitrobenzene transformation rate, whereas doping nitrogen into the RGO framework exhibited a positive effect. The study indicates t

SUBMITTER: Li L 

PROVIDER: S-EPMC4954959 | biostudies-literature | 2016 Jul

REPOSITORIES: biostudies-literature