Functionalization of magnetite nanoparticles with carboxymethyl-beta-cyclodextrin for oxytetracycline removal

Abstract

This work explores the possibility of oxytetracycline (OTC) elimination from water by using a magnetite grafted by carboxymethyl-beta-cyclodextrin adsorbent called Mag-CM-β-CD. They were characterized by fourier transform infrared spectroscopy and vibrating sample magnetometer. This article aims to perform a study on the effect of the pH synthesis process and pH OTC solution on the OTC removal, as well as the effect of the kinetics adsorption and isotherms adsorption of Mag-CM-β-CD on OTC adsorption. Mag-CM-β-CD can remove OTC with a higher adsorption capacity (71.97\xa0mg\xa0g−1) than that of magnetite adsorbents (60.02\xa0mg\xa0g−1) by using 5% w of CM-β-CD/w of magnetite.