Basella alba aqueous leaf extract was employed for the synthesis of ZnO and Ag/ZnO nanocomposites (NC), eliminating the use of hazardous chemicals. UV‐visible spectroscopic analysis, X‐ray diffraction studies, Fourier transform infrared spectroscopy, field emission scanning electron microscopy, transmission electron microscopy, and X‐ray fluorescence spectroscopic analysis were used to determine the optical properties, crystalline structure, phytoconstituents, surface morphology, and elemental composition of the fabricated nanomaterials. The synthesized NC were employed as antioxidant in order to determine their free radical‐quenching effect. In vitro antibacterial activity assays exhibited their enhanced potential on selective gram‐positive and gram‐negative bacterial pathogens. The Ag/ZnO NC display a rapid catalytic reduction rate for rhodamine B, methylene blue, and methyl orange with degradation rates of 88 %, 90 %, and 92 %, respectively. Thus, an environmentally benign, cost‐effective synthetic methodology is presented for the size‐controlled synthesis of nanomaterials which act as multifunctional platform to alleviate organic pollutants.
Textile effluents are toxic and carcinogenic materials that exist in the aquatic environment. In this study, the degradation efficiency of commercially available scarlet red dye investigated on TSA-SS Electro Fenton process (EFP) was reported. It is of great interest in the field of environmental engineering to remove dyes from aquatic environment. The influence of operating parameters such as pH (2-9), current density (0.1-0.5 mA/cm 2 ), concentration of dye (0.1-0.5 g/L), H 2 O 2 (0.1-0.5 g/L) concentration and Fe 2? concentration (0.01-0.03 g/L) were analyzed by batch system. The optimum degradation conditions were determined as pH-3, current density-0.4 mA/cm 2 , concentration of dye-0.4 g/L, H 2 O 2 concentration-0.5 g/L and Fe 2? concentration-0.025 g/L. These results indicated that the degradation efficiency of scarlet red dye by EFP depends on solution pH and Fenton reagent concentration and a low pH value was favorable for the dye degradation. It has been demonstrated that more than 94% dye removal was obtained at 50 min. Electro Fenton process was also investigated by cyclic voltammetry technologies.
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