Abstract
Ag3PO4–graphene oxide (GO) composites were fabricated via a Tollen's -assisted method, which displayed outstanding photocatalytic activity for MB degradation under the visible light illumination. The samples were investigated by scanning electron microscopy (SEM), transmission electron microscopy (TEM), X-ray diffraction (XRD), Raman spectrometer, UV–vis diffuse reflectance spectroscopy (DRS), X-ray photoelectron spectroscopy (XPS), and photoluminescence (PL). The morphology and structure of as-synthesized samples were like-cubic particles scattered onto the GO nanosheets, suggesting that the fabrication of [Ag(NH3)2]+–GO complexes were synthesized during the forming of Ag3PO4 /GO composites. Compared with Ag3PO4, UV–vis DRS demonstrated that the addition of GO sheets resulted in the band gap of Ag3PO4/GO sample decrease to 2.03eV. Meanwhile, during the photocatalytic process the photo-electrons were transferred from the surface of Ag3PO4 to GO nanosheets, which improved the photocatalytic performance and stability of Ag3PO4.
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