Development of Composites by Using Cellulose Extracted from Pomelo Peel with Red Mud and Chitosan/PVA Polymer

This work focuses on developing environment-friendly red mud/polymer-based composite films that can effectively degrade dye from industrial effluent. In this study, the cellulose biopolymer was extracted via greener rot from pomelo peels with subsequent leaching and bleaching processes. Using a scanning electron microscope (SEM–EDX), X-ray diffraction (XRD), and Fourier Transfer Infrared spectroscopy (FTIR), the morphological, structural, and phase analysis of the synthesized microcrystalline cellulose was examined. The results demonstrate its potential as an efficient and sustainable solution for reinforcement material and wastewater treatment applications. The hydrophilic nature of composite films was analyzed using a water contact angle analyzer and the contact angle of the film is approximately 50° which shows the desirable hydrophilicity of composite film towards aqueous solution. The PVA red mud-based composite film's moisture content and water solubility were also investigated, and the results demonstrated that it would perform significantly in aqueous solutions, particularly the PVA/RM/Ch/C composite film, which has a water solubility of 54% and can be used to treat wastewater.