Abstract
In this research, the preparation of a Ag(3)PO(4)/g-C(3)N(4)@MoS(2) photocatalyst and the performance and mechanism of degradation of 2-amino-4-acetaminoanisole (AMA) were studied. The phase composition and morphology of the synthesized samples were comprehensively characterized by X-ray diffraction (XRD), scanning electron microscope (SEM), ultraviolet-visible diffuse reflectance (UV-Vis), and photoelectron spectroscopy (XPS). The catalytic performance of the photocatalyst was evaluated by the visible-light catalytic degradation of the AMA. The experimental results show that the Ag(3)PO(4)/g-C(3)N(4)@MoS(2) composite photocatalyst has stronger photocatalytic oxidation and reduction capabilities than Ag(3)PO(4) and Ag(3)PO(4)/g-C(3)N(4). The material only decreases by 31.3% after five cycles of use, indicating that the material has good light stability. Free radical capture experiments prove that photo-generated holes (h(+)) and superoxide radicals (·O(2)(-)) are the main active substances in the photocatalytic process. The fundamental studies in the present research provide a new perspective for constructing an innovative type of visible-light photocatalyst and a new way to promote the photocatalytic degradation of organic pollutants.