Fabrication and Characterization of Magnetic GQDs Using Green Tea Extract for Environmental Remediation

Abstract

A graphene-based magnetic nanocomposite was synthesized and used as an effective adsorbent for crystal violet dye. The properties of the magnetic nanocomposite were characterized by X-ray diffraction (XRD), Fourier Transform infrared spectroscopy (FTIR), X-ray photoelectron spectroscopy (XPS) and Vibrating Sample Magnetometer (VSM). This novel graphene-based magnetic nanocomposite showed great adsorptive ability towards the analytes and can easily separated from the water. When the amount of magnetic GQDs was 10 g/L, the removal rate of was more than 90%.