Synthesis of ZnAlTi-LDO supported C-60@AgCl nanoparticles and their photocatalytic activity for photo-degradation of Bisphenol A

ZnAlTi layered double oxide (ZnAlTi-LDO) supported C-60@AgCl nanoparticles were synthesized by the coprecipitation-light-induced method and their photocatalytic activity for photo-degradation of Bisphenol A (BPA) was analyzed quantitatively by high performance liquid chromatography (HPLC). The morphology, structure and composition of the nanocomposites were analyzed by Scanning Electron Microscopy, Transmission electron microscopy, X-ray diffraction patterns, Fourier Transform Infrared spectra and Specific Surface Area. According to the analysis, ZnAlTi-LDO supported C-60@AgCl nanoparticles (C-60@AgCl-LDO) was characteristic of mesoporous materials. Pore size distribution plots of all the catalysts were well-distributed, ranging between 10 and 20 nm. Because the heterostructure of Ag@AgCl enhanced near-field for light scattering, reflection and absorption. The Ag@AgCl-LDO nanoparticles and C-60@AgCl-LDO nanoparticles showed a very intense absorption band in the near-UV region. The C-60 was used as support materials to enhance the stability of Ag-based photocatalysts. The C-60@AgCl can reduce the recombination of photo-induced electron hole pairs and therefore increase the efficiency of the photocatalysis. The photo-degradation experiment was conducted by using a series of the nanoparticles to degrade BPA under simulated visible light irradiation. Test results show that, photo generated holes, superoxide radical species, center dot OHbulk and singlet oxygen are responsible for the photo-degradation, among which the superoxide radical species plays an indispensable role in the photocatalytic reaction system. The degradation rate of the C-60@AgCl-LDO in photocatalytic degradation of BPA under simulated visible light irradiation is for 90%. The C-60@AgCl-LDO nanoparticles with remarkable photocatalytic activity can be used for large-scale environmental remediation.