Gamma irradiation-assisted synthesis of PANi/Ag/MoS_2/LiCo_(0.5)Fe_2O_4 nanocomposite: Efficiency evaluation of photocatalytic bisphenol A degradation and microbial decontamination from wastewater

摘要

Synthesis and production of proper photocatalysts are urgently needed for attending to critical environmental problems. Herein, the gamma irradiation-induced the synthesis of PANi/Ag/MoS2/LiCo0.5Fe2O4 nanocomposite as a magnetic recyclable photocatalyst for water remediation application. The XRD and FTIR analyses confirmed the successful preparation of the nanostructured PANi, LiCo0.5Fe2O4, Ag, and MoS2. At the same time, the HRTEM images display the nanostructure formation of the PANi/Ag/MoS2/LiCo0.5Fe2O4 photocatalyst. In addition, the optical and magnetic properties of the photocatalyst were addressed. The optical band gap reached about of 1.60, 1.04, 1.61, and 1.08 eV for Li-Co ferrite, MoS2, PANi, and the PANi/Ag/MoS2/LiCo0.5Fe2O4 samples, respectively. Also, the PANi/Ag/MoS2/LiCo0.5Fe2O4 nanocomposite possesses a saturation magnetization of 5.8 emu/g, suggesting that the photocatalyst can be easily separated from the solution by an applied magnetic field. Further, the PANi/Ag/MoS2/LiCo0.5Fe2O4 photocatalyst showed an excellent photocatalytic efficiency against bisphenol A (82% removal efficiency). Furthermore, the PANi/Ag/MoS2/LiCo0.5Fe2O4 photocatalyst displayed an exceptional antimicrobial potential towards pathogenic microbes. This study indicated that the PANi/Ag/MoS2/LiCo0.5Fe2O4 nanocomposite is an attractive candidate for wastewater treatment.