Abstract
The development of eco-friendly materials to remove toxic chemicals from water is highly sought after in the present days. In the current study, the composites of cellulose nanofiber (CNF) and silver nanoparticles (Ag NPs) were prepared and their ability to adsorb malachite green (MG) dye under different conditions was investigated. XRD, FTIR, EDX analyses of samples confirmed the presence of Ag NPs on the CNFs and the sorption of MG dye on composites. The effects of various parameters (such as contact time, CNFs - Ag NPs dose, initial MG concentration, pH, and temperature) on MG degradation were evaluated. The maximum removal was obtained at a pH of 8 and temperature of 303 K. The adsorption equilibrium was described well by the Freundlich isotherm model suggesting multilayer physical adsorption. The maximum uptake of MG dye using CNF-Ag NPs composites was found to be 142 mg/g, which is superior to the silver-based composites reported in the literature. Adsorption kinetics were predicted by the pseudo-first-order kinetic model rather than the pseudo-second-order kinetic model. This method is promising due to its cost-effective nature as well as the use of bio-based materials.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
More From: Carbohydrate Polymer Technologies and Applications
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.