AgBr/Ag/Ag2O/GO composite: Ultrasonic fabrication, characterization and visible-driven photocatalytic property

作者：Xie Jinsong^*; Li Liangsong; Guan Yucheng; Lu Hongdian; Han Chengliang; Zhao Difang; Tian Changan

来源：Materials Letters, 2014, 120: 54-57.

DOI：10.1016/j.matlet.2014.01.019

• AgBr/Ag/Ag2O/GO
• Semiconductors
• Nanocomposites
• Ultrasonic synthesis
• Visible photocatalyst

In this letter, graphene oxide (GO) was prepared by a kind of modified Hummers' method, which via ultrasonic treatment could be dispersed in water to obtain a homogeneous and stable brownish yellow flocculent solution. AgBr/Ag/Ag2O/GO nanocomposite catalyst was produced by adding hexadecyltri-methyl ammonium bromide (CTAB) and silver nitrate solution into the above formed GO solution under ultrasonic treatment. The structures, morphologies, and light absorption properties of AgBr/Ag/Ag2O/GO composite catalysts were characterized by X-ray diffraction (XRD), field emission scanning electron microscopy (FE-SEM), and ultraviolet and visible diffuse reflectance spectroscopy (UV-DRS). Preliminary results showed that the composite catalyst has a better catalytic degradation effect on organic dyes like rhodamine B (RhB) and methyl orange (MO) in polluted water under simulated solar light irradiation in contrast to the single GO and AgBr.

• 出版日期2014-4-1
• 单位合肥学院