Abstract
Novel visible light driven Ag–Bi2WO6–graphene nanocomposite photocatalysts were synthesized by hydrothermal method. The optimized photocatalysts were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), Raman spectroscopy, X-ray photoelectron spectroscopy (XPS), and ultraviolet–visible diffuse reflection spectroscopy (DRS). The photocatalysts exhibited a significantly enhanced photocatalytic performance compared with pure Bi2WO6 under simulated solar light. The optimal product, 5mol% Ag–Bi2WO6–2.5 weight% graphene, showed the highest photocatalytic activity to degrade metoprolol. Metoprolol was 100% eliminated after 2h simulated solar light irradiation in a solution with photocatalyst amount of 1mg/mL, suggesting the potential application of this material in wastewater treatment. Eight reaction intermediate products were observed by LC–MS/MS and a tentative pathway of metoprolol degradation was proposed.
Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
