Novel CoCdFe2O4/Chitosan–PANi ternary nanocomposite for High-Efficiency Lead Removal
Abdullah T.A. Abdalsalam A.H. Ati A.A. Rasheed R.T. Al–Anssari S. Abdullah O.I. Hussein M.A. Mohammed M.A. Kułacz K. Le P.-C.
March 2026Academic Press Inc.
Journal of Solid State Chemistry
2026#355
Heavy metal pollution, particularly lead (Pb2+), poses a significant threat to the environment and human health. In this study, it was synthesized and analyzed a unique nanocomposite by preparing cadmium-cobalt in specific ratios with ferrite nanoparticles on a polymer. This resulted in the nanocomposite (Co0·2Cd0·8Fe2O4/PANi–g–Chitosan), which was used to remove lead ions efficiently. The nanocomposite consists of cobalt and cadmium ferrite nanoparticles with a chitosan and polyaniline polymer matrix, which was synthesized chemically. This novel nanocomposite exhibits exceptional removal efficiency, demonstrating remarkable performance. The properties of the nanocomposite were investigated using X-ray diffraction (XRD), scanning electron microscopy (SEM), Fourier transform infrared spectroscopy (FTIR), and UV–Vis spectroscopy. These tests confirmed the successful fabrication and structural integrity of the nanocomposite. The nanocomposite exhibited high adsorption and purification efficiency, achieving 97.8 % removal of lead ions at pH 5. The adsorption behavior was investigated by studying the reaction kinetics (using a pseudo-second-order reaction model) and analyzing the adsorption curve, providing valuable insights into the reaction mechanisms. Notably, the Taguchi method was employed to optimize the adsorption parameters. This analysis revealed that adsorption time and pH value are significant factors. The optimal conditions were: contact time of 90 min, a pH of 5, and a shaking speed of 200 rpm, based on Taguchi results. The removal of lead ions using this nanocomposite revealed great potential as an effective nanocomposite for purifying water.
Adsorption , Ferrite-PANi , Lead ions , Nanocomposite , Water treatment
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College of Applied Sciences, University of Technology, Iraq
Nanotechnology and Advanced Materials Research Center, University of Technology, Iraq
Department of Oil and Gas Engineering, University of Technology, Iraq
Department of Petroleum Engineering, Al-Naji University, 10001, Iraq
Department of Chemical Engineering, University of Baghdad, 10001, Iraq
Department of Energy Engineering, College of Engineering, University of Baghdad, Iraq
Department of Mechanics, Al-Farabi Kazakh National University, Almaty, 050040, Kazakhstan
Faculty of Chemistry, University of Wroclaw, Poland
The University of Danang-University of Science and Technology, 54 Nguyen Luong Bang st., Hoa Khanh, Danang, 550000, Viet Nam
College of Applied Sciences
Nanotechnology and Advanced Materials Research Center
Department of Oil and Gas Engineering
Department of Petroleum Engineering
Department of Chemical Engineering
Department of Energy Engineering
Department of Mechanics
Faculty of Chemistry
The University of Danang-University of Science and Technology
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Книга Публикация научной статьи Волощук 2026 Book Publication of a scientific article 2026