Defluorination of water solutions and glass industry wastewater using a magnetic pineapple hydrochar nanocomposite modified with a covalent organic framework.

This study investigates the development and use of a novel magnetic composite, PAH/MnFeO/COF, synthesized from pineapple hydrochar (PAH) and modified with a covalent organic framework (COF) for Fluoride (Flu) elimination from water and industrial wastewater. Fluoride contamination poses serious health risks, making its removal essential. The composite was analyzed using scanning electron microscope (SEM), Fourier transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), and other methods, confirming its successful synthesis with a surface area of 102.