Facile Hydrothermal Synthesis of Cu and Al Oxide Nanoparticles for Photodegradation of Chlorpyrifos.

Copper oxide (Cu₂O) and aluminum oxide (Al₂O₃) nanoparticles were successfully fabricated through a facile hydrothermal route. The stating materials were the metal salts of copper, aluminum, de-ionized water and gallic acid, where gallic acid played the role of benign stabilizing agent in the synthesis process. Crystallite size of the nanoparticles determined using Williamson Hall analysis were found to be 24 and 26 nm for aluminum oxide and copper oxide respectively.

Microwave synthesis of nanoparticles and their antifungal activities.

Microwave assisted approach was adopted for obtaining copper (II) oxide and Iron (III) oxide nanoparticles using leaves extract of Euphorbia helioscopia. Tanins component extracted from Euphorbia helioscopia were responsible for the formation of stable nanoscopic particles. Nanoparticles of iron and copper oxide was characterized using powder X-ray Diffractometer (PXRD), Scanning electron microscopy (SEM), Energy Dispersive X-ray Analysis (EDAX) and Transmission Electron Microscopy (TEM).

Preparation, characterization and antifungal activity of iron oxide nanoparticles.

Iron oxide nanoparticles with particle size 10-30 nm were prepared by a green approach using tannic acid as reducing and capping agent. These nanoparticles were characterized by X-ray diffractometry (XRD), high resolution field emission scanning electron microscopy (FESEM) and transmission electron microscopy (TEM). The prepared iron oxide nanoparticles were also evaluated for their antifungal activity against Trichothecium roseum, Cladosporium herbarum, Penicillium chrysogenum, Alternaria alternata and Aspergillus niger.