Facile assembly of novel g-C₃N₄@expanded graphite and surface loading of nano zero-valent iron for enhanced synergistic degradation of tetracycline.

ABSTRACT: The two-stage removal process of tetracycline (TC) in aqueous solutions using a novel photocatalyst based on nano-zero-valent iron (NZVI), g-C₃N₄ and expanded graphite by carbon layer (EGC) is reported for the first time. The composite (NZVI/g-C₃N₄@EGC) exhibits remarkable adsorption, reduction ability and visible light activity over the reaction course. Compared with pristine g-C₃N₄ (25.9%) and pure NZVI (45.9%), NZVI/g-C₃N₄@EGC achieves high degradation efficiency of TC (98.5%) due to the formation of a heterogeneous photo-Fenton system. This study shows that synergistic effects are achieved in the reaction system, including maintaining the reduction ability of NZVI and enhancing the photocatalytic ac

SUBMITTER: Wang X 

PROVIDER: S-EPMC9082423 | biostudies-literature | 2019 Oct

REPOSITORIES: biostudies-literature