Abstract
Zinc oxide (ZnO) nanoparticles (NPs) are important materials when making different products like sun screens, textiles, and paints. In the current study, the photocatalytic effect of prepared ZnO NPs from Moringa oleifera (M. oleifera) was evaluated on degradation of crystal violet (CV) dye, which is largely released from textile industries and is harmful to the environment. Preliminarily, ZnO NP formation was confirmed using a double beam ultraviolet visible (UV-Vis) spectrophotometer; further, the NP size was estimated using XRD analysis and the functional group analysis was determined using Fourier transform infrared (FT-IR) spectroscopy. The morphology of the synthesized NPs was found to be a hexagonal shape using SEM and TEM analysis and elemental screening was analyzed using EDX. ZnO NPs were shown sized 40–45 nm and spherical in shape. The degradation percentage of ZnO NPs was calculated as 94% at 70 min and the rate of the reaction –k = 0.0282. The synthesized ZnO NPs were determined for effectiveness on biological activities such as antifungal, hemolytic, and antibacterial activity. ZnO NPs showed good antifungal activity against Alternaria saloni and Sclerrotium rolfii strains. Further, we have determined the hemolytic and antibacterial activity of ZnO NPs and we got successive results in antibacterial and hemolytic activities.
Highlights
Synthetic dyes and other contaminated stuffs are the waste products which are being discharged from many industries
Green synthesized Zinc oxide (ZnO) NPs play a major role against the degradation process of industrial dyes due to the photocatalytic effect [20]
ZnO NPs: Antibacterial Studies We processed this study against the two standard clinical strains such as S. aureus and E. coli using a well diffusion method [24]
Summary
Synthetic dyes and other contaminated stuffs are the waste products which are being discharged from many industries. Surendra et al Nanoscale Research Letters (2016) 11:546 temperature of zinc oxide (ZnO) NPs is 3.3 eV and the excitation binding energy is 60 meV Due to these encouraging specific characteristics, ZnO NPs were suggested as good photocatalytic agents [7, 8]. The synthesis of ZnO NPs through the biological method using enzymes, microorganisms, and plants and their extracts has been suggested as a cost-free method This eco-friendly method for ZnO NP synthesis attracts more importance and is an alternative to the chemical and physical methods [16], due to the avoidance of the use of toxic chemicals and high energy ingredients in the synthesis process. Green synthesized ZnO NPs play a major role against the degradation process of industrial dyes due to the photocatalytic effect [20]. The antifungal, hemolytic, and antibacterial activities of the ZnO NPs were determined
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