摘要：A BiOCl-Bi12O17Cl2 nanocomposite with a high visible-light response and a low photoinduced electron-hole pair recombination rate was successfully synthesized using an ultrasonic-hydrothermal *** texture,structure,optical,and photocatalytic properties of the composite were *** results showed that the composite had a sheet flower-like structure with a large specific surface ***-visible diffuse reflection spectra and photoluminescence spectra showed that the composite had an excellent visible-light response and a low recombination rate of photoinduced electron hole *** photocatalytic property of the composite was evaluated by the removal efficiency of rhodamine B and ciprofloxacin under visible-light *** composite’s reaction rate constant of removing rhodamine B(/ciprofloxacin)was approximately 8.14(/4.94),42.63(/11.91)and 64.66(/36.07)times that of Bi12O17Cl2,P25,and BiOCl,***,the composite showed a wide applicable pH range and excellent *** analysis showed that photogenerated holes played a dominant role and·O2–also contributed to photocatalytic *** summary,this study presents a high-efficiency photocatalyst for wastewater treatment.