Journal
MATERIALS RESEARCH BULLETIN
Volume 149, Issue -, Pages -Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.materresbull.2021.111724
Keywords
rGO; Ag3PO4; Visible-light-driven; Methylparaben; Bacteria
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Funding
- Open Research Fund Program of Collaborative Innovation Center for Molecular Imaging of Precision Medicine [2020-ZD01]
- Natural Science Foundation of Shanxi Province [201901D111110]
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A novel graphene-bridged AgCl/Ag3PO4/rGO photocatalyst with excellent visible-light-driven photocatalytic performance was prepared, showing high efficiency in the degradation of methylparaben and inactivation of Escherichia coli.
A novel graphene-bridged AgCl/Ag3PO4/rGO photocatalyst with admirable visible-light-driven photocatalytic performance was prepared through a combination of in-situ precipitation and anion-exchange method. The photocatalyst was revealed a well-defined heterostructure in which few-layers rGO sheets are decorated by AgCl and Ag3PO4 nanoparticles. The ternary photocatalyst exhibits excellent photocatalytic activity for the degradation of methylparaben (MPB) and the inactivation of Gram-negative Escherichia coli (E. coli) due to the synergistic effects of AgCl, Ag3PO4 and rGO. Results show that 20 mg.L-1 of MPB or 107 CFU.mL(-1) of E. coli can be eliminated in AgCl/Ag3PO4/rGO system within 40 min under visible-light irradiation. Moreover, great stability and reusability were also observed for the ternary photocatalyst. Trapping experiments further confirm that h+ is the most important active specie, which indicates the importance of rGO due to its high electron transfer ability. And the possible photocatalytic mechanisms of AgCl/Ag3PO4/rGO in visible light system were finally proposed.
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