Green synthesis and characterization of metal Nanoparticles on textile dye removal and Biological applications

Abstract

The photocatalysis of silver/nickel bi-metallic nanoparticles on safranin O dye newlinedegradation was evaluated by UV light irradiations. Silver/nickel bi-metallic newlinenanoparticles were synthesized by the green approach using Zingiber officinal root newlineextract. The average particles size of silver/nickel bi-metallic nanoparticles was found newlineto be 70-88nm from SEM image and XRD patterns it was c that existence of newlinesilver/nickel bi-metallic nanoparticles. 8mg of silver/nickel bi-metallic nanoparticles in newline40ml of 10ppm dye degraded was completely in presence of UV light irradiations newlinewithin 30 mints time durations. The effect of dye degradation within a short period of newlinetime (30 minutes) was due to wide band gap energy and photochemical redox reactions. newlineSilver-palladium (Ag/Pd) bimetallic nanoparticles were synthesized by greener newlineway using Catharanthus leaf extract. The synthesized silver/palladium bimetallic newlinenanoparticles were used to degrade the safranin O textile dye through photo catalytic newlineactivity and the free radical scavenging property was evaluated by DPPH assay test. newlineSilver/Palladium bimetallic nanoparticles were synthesized by biogenic reduction newlinemethod using silver nitrate and palladium chloride precursors assisted with CRL newlineextract. The synthesized Ag/Pd bimetallic nanoparticles morphological and particle size newlinewere evaluated by the SEM / TEM image. The particle size was found to be within the newlinenanoscale range of 15-30nm. The 98% maximum dye degradation for 40min time newlinedurations was achieved by the photocatalytic activity of silver/palladium bimetallic newlinenanoparticles through UV light irradiation on safranin O textile dye and simultaneously newlineantioxidant activity of silver/palladium bimetallic nanoparticles was also tested through newlineDPPH assay test.