Novel Ag@Ag3PO4: A Highly Efficient Photocatalyst under Visible Light

Recently, silver nanoparticles(NPs)-based photocatalysts have attracted more attention due to their enhanced visible light photocatalytic activity. In this work, a new Ag@Ag3PO4photocatalyst have been prepared by precipitation replacement and reduction methods. The products were characterized by XRD and SEM. The photocatalytic activities was evaluated using 2-naphthol and methyl orange degradations under visible light irradiation (λ > 400 nm). The degradation rates of 2-naphthol and methyl orange with initial concentration of 15 mg•L-1reached 80% and 99% respectively by using 0.6 g•L-1Ag@Ag3PO4. The photocatalytic mechanism was discussed.