Vol. 6, Issue 1, Part A (2024)

Plants are good replacement of hazardous chemicals used as capping agents for synthesizing the nanoparticle. Green synthesis of ZnO nanoparticles is performed using aloe-vera gel as capping agent and obtained nanoparticles are calcined at 400 ℃. The XRD pattern of prepared ZnO nanoparticles are obtained and denoised using Haar wavelet transforms. The sharp peaks of XRD pattern indicates crystallite nature of ZnO nanoparticles. Interplanar spacings calculated by using Bragg’s equations are compared with standard JCPDS data. The structural properties are very close to standard JCPDS data which confirm that synthesized nanoparticles are pure and crystallite in nature.