Abstract： To improve the visible-light photocatalytic performance of graphitic-type carbon nitride (g-C3N4), Ag/g-C3N4 composites graphite carbon nitride was prepared by hydrothermal synthesis of flake g-C3N4 self-assembly method. The effects of adding amounts of silver nitrate on the structure and photocatalytic performance of Ag/g-C3N4 composites were investigated. Ultraviolet visible spectrophotometer (UV-Vis), X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), and scanning electron microscopy (SEM) were used to characterize the structure and properties of the composites. The results indicated that the resulting composite had a spherical structure due to the self-assembly behavior of g-C3N4, and its spherical diameter decreased with the increase of silver nitrate. Compared with g-C3N4, the composite material had high catalytic performance, possibly due to its uniform silver composition and the formation of the three-dimensional structure. Ag(60)/g-C3N4 exhibited the highest catalytic activity because of the influence of the silver ion concentration on optical properties, band and structure of the prepared composite catalyst.
Yu Qingbo,Xu Qixiang,Fang Songhui. Effect of Ag Composite on the Structure and Photocatalytic Performance of Graphitic Carbon Nitride[J]. 化学反应工程与工艺, 2017, 33(4): 380-384.
