ZnO-embedded Hydrogel for phenol degradation from synthetic wastewater

Abstract

A graft copolymerization were used to create ZnO nanoparticles with carboxymethyl cellulose-g-poly(acrylic acidco-acrylic amide) hydrogel coating (Zn(NO3)2]. Hydrogel material with an average size of 46.94 nm were successfully coated on the zinc nitrate surface, according to the results of several characterization tests. Zinc oxide (ZnO) nanoparticles were synthesised using a wet chemical technique. scanning electron microscopy (SEM), X ray diffraction (XRD), and the distribution of particle sizes was utilized to examine the structural and morphological aspects of the produced ZnO nanoparticles. The developed ZnO nanoparticles were used to remove phenol from industrial and synthetic wastewater. This study examined the effects of beginning pH, ZnO dosage, contact time, and phenol initial concentration on the percentage of phenol removed. For the sorption data, Freundlich and Langmuir isotherms were used. When compared to various isotherms, the findings indicate that the Langmuir isotherm fits the phenol removal data quite well.