Syzygium Cumini leaf extract exploited in the green synthesis of zinc oxide nanoparticles for dye degradation and antimicrobial studies

Abstract

Zinc oxide was prepared via green synthesis method. ZnO had high excitation energy (60 meV), ample energy band gap (3.37 eV), high thermal stability and mechanical stability. These properties made ZnO smart and it will be utilized in various fields like electronics, optoelectronics and laser technology, light emitting diodes (LEDs), photo detectors, solar cells, gas sensors, film transistors and biological applications. The structural and surface morphology were investigated using XRD, SEM, EDAX and UV–visible techniques. The antibacterial activity of ZnO had been evaluated. The results indicated that the sample was giving more effective for Klebsiella when compare with other bacterial organisms such as Pseudomonas, Enterococcus, Escherichia coli. The ZnO nanoparticles were synthesized via green method and analysed, and the enhancement of their catalytic properties against congo red dye under diverse experimental conditions. The maximum decolourisation for Congo red was found to be 90 %. ZnO had numerous applications in which some of applications were used in biomedical field like drug delivery, cancer therapy, anti-diabetic agent, anti bacterial, dye degradation.