Green Synthesis of Silver Oxide Microparticles Using Green Tea Leaves Extract for an Efficient Removal of Malachite Green from Water: Synergistic Effect of Persulfate

The removal of water pollutants by photocatalysis is a promising technique, mainly due to its environmentally friendly and sustainable nature. In this study, the degradation recalcitrant organic pollutant, malachite green (MG), was investigated in microstructured silver oxide photocatalyst. (Ag2O) microparticles (MPs) were synthesized low-cost, method, mediated tea leaves extract. surface, morphological optical properties Ag2O MPs determined scanning electron microscopy (SEM), energy dispersive X-ray (EDX) analysis, diffraction (XRD) Fourier transform infrared (FTIR) spectroscopy, ultraviolet-visible (UV-visible) spectrophotometry. showed good photoactivity, represented 83% (MG) ([C]0 = 0.4 mM, loading 0.1 g L?1) at neutral pH, 3 h. Persulfate ions (PS) strong synergistic effect on efficiency solar/Ag2O photocatalysis, complete MG 15 min, presence 1.6 mM PS. results revealed that solar/Ag2O, particularly solar/Ag2O/PS method for elimination toxic pollutants, such as green, from environment.