Preparation of magnetic manganese ferrite/graphene oxide nanocomposites as efficient adsorbents towards ibuprofen

Lu Thi Mong Thy, Nguyen Minh Dang, Nguyen Huong Tra My, Le Tan Tai, Tran Hoang Tu, Doan Thi Yen Oanh, Thieu Quang Quoc Viet, Hoang Minh Nam, Nguyen Huu Hieu and Mai Thanh Phong

Abstract

This study aims to prepare in manganese ferrite/graphene oxide (MnFe₂O₄/GO) nanocomposites for the removal of ibuprofen drug residue from water. The synthesised nanocomposites with various MnFe₂O₄ content from 30–60 wt.% were characterised by X-ray diffraction, Fourier transform infrared spectroscopy, transmission electron microscopy, vibrating sample magnetometer, Brunauer - Emmett - Teller specific surface area, and energy dispersive X-ray. It was found that the suitable mass ratio of MnFe₂O₄ in nanocomposite for ibuprofen removal was 50 wt.%. The adsorption process followed the pseudo-second-order kinetic and Langmuir isotherm model. The maximum capacity of MnFe₂O₄/GO was found to be 156.25 mg g⁻¹. Accordingly, the MnFe₂O₄/GO could be used as an efficient adsorbent for the removal of ibuprofen from water.