▎ 摘　　要

For efficient degradation of volatile organic compounds (VOCs) in the air, promising and environmentally friendly technologies are being explored. Here, a silver phosphate/graphene oxide (Ag3PO4/GO) aerogel was synthesized by ultrasonic precipitation combined with freeze drying strategy. Afterwards, physicochemical properties of the as-obtained Ag3PO4/GO aerogel sample were investigated by scanning electron microscopy, transmission electron microscopy, X-ray diffraction, ultraviolet-visible diffuse reflectance spectroscopy, Raman spectroscopy, and X-ray photoelectron spectroscopy. Results showed that spherical Ag3PO4 with an average diameter of 150 nm uniformly combined with GO to form an aerogel structure. Moreover, by integrating with GO, the utilization rate, visible light absorption, and pollutant degradation efficiency of Ag3PO4 could be significantly improved. Furthermore, Ag3PO4/GO aerogel was used to degrade VOC (formaldehyde in this case), which was found to be degraded from 3.012 mg/m(3) to 0.419 mg/m(3) under a 180-minute Xenon lamp. Thus, the mechanism of enhanced visible light photocatalytic (PC) degradation of formaldehyde by Ag3PO4/GO aerogel was proposed and discussed. Finally, it provided a reference for the development prospects of environmentally friendly new materials to treat gaseous pollutants in the air.