Ultrasonic Assisted Facile Synthesis of CuO Nanoparticles and Used as Insecticide for Mosquito Control

Abstract

The present study deals with the fabrication of copper oxide nanoparticles with high purity via ultrasonic assisted chemical precipitation method. Synthesized CuO nano-mosquitocides rely on the polyvinyl pyrrolidine (PVP) as stabilizing agent. Synthesized CuO nanoparticles were confirmed via UV-vis spectroscopy, scanning electron microscope, X-ray diffraction, EDX, Fourier-transform infrared and SEM mapping studies. The crystallite size from XRD studies revealed around 13.44 nm. The synthesized CuO nanoparticle was further assessed for mosquito larvicidal activity against south-urban mosquito larvae Aedes aegypti. The synthesized CuO nanoparticle displayed significant activity against Aedes aegypti with the LD50 value of 43.95 μg/mL than precursor copper chloride dihydrate and control permethrin with the LD50 value of 94.31 and 72.44 μg/mL.