通过简单易行的沉淀工艺制造了具有优异光催化性能的AgCl/AgBr复合光催化剂. X射线衍射（XRD），扫描电子显微镜（SEM），能量色散X射线光谱（EDX）和紫外可见漫反射光谱对该材料的结晶结构、形貌特征和光吸收特性进行了表征，并且在可见光驱动下降解水中四溴双酚A (TBBPA). 结果表明，AgCl/AgBr具有优异的光催化活性，反应30 min后的降解率达98.49%，最后探讨了AgCl/AgBr复合材料可能的光催化机理,发现 ?OH和 ?O2 ? 是主要活性物质,并且在反应过程中有效地阻止了电子空穴对的复合,使材料表现出优异的光催化性能.
An efficient visible-light-driven AgCl/AgBr composite photocatalyst was fabricated through a simple precipitation process. The crystal structure, morphology and light absorption properties of the silver matrix composite were characterized with X-ray diffraction (XRD), scanning electron microscopy (SEM), energy dispersive X-ray spectroscopy (EDX) and UVvis diffuse reflection spectroscopy (DRS). The as-prepared AgCl/AgBr composite was used to degradate tetrabromobisphenol A under visible-light irradiation. It is found that AgCl/AgBr could degradate TBBPA almost completely in 30min and the degradation rate was 98.49%. Finally, the possible photocatalytic mechanism of the AgCl/AgBr composite was discussed, and it was found that ?OH and ?O2 ? were the main active materials and the photocatalyst prevented the recombination of electron-hole pairs during the reaction, which contributed to the excellent performance of the photocatalytic activity.