Preparation of magnetic graphene nanocomposite for the removal of cefixime from aqueous solution

ABSTRACT

The magnetite graphene nanocomposite (G/Fe₃O₄) obtained from banana peels was prepared via a simple and green technique and utilised as an environmental-friendly adsorbent for cefixime(CFX) removal. The G/Fe₃O₄ nanocomposite was characterised by transmission electron microscopy (TEM), scanning electron microscopy (SEM), X-ray diffraction (XRD), fourier transform infrared spectroscopy (FTIR), vibrating sample magnetometry (VSM), atomic force microscopy (AFM), Brunauer, Emmett, and Teller (BET), and UV–visible spectrophotometer. The adsorption parameters, including the initial CFX concentration, contact time, solution pH, temperature, and adsorbent dosage, were investigated. The adsorption kinetic and isotherm were well fitted by the pseudo second-order and Langmuir models, respectively. The results showed that the maximum adsorption capacities of CFX on G/Fe₃O₄ nanocomposite was 285.71 mg g⁻¹ andBET surface area of G/Fe₃O₄ nanocomposite was1905.5 m² g⁻¹.

KEYWORDS:

• Adsorption
• banana peels
• cefixime
• G/Fe₃O₄ nanocomposite

Author contributions

All authors contributed to the study conception and design. Material preparation, data collection and analysis were performed by [SekinehAzimiBizaki], [Nader Bahramifar], [Raziyeh Zandipak], and [FatemeBahmeei]. The first draft of the manuscript was written by [Raziyeh Zandipak] and all authors commented on previous versions of the manuscript. All authors read and approved the final manuscript.

Disclosure statement

The authors declare that they have no conflict of interest.

Additional information

Funding

No funding was received.