Abstract
Abstract This article reports the use of activated carbon prepared from groundnut hulls (GHAC) in the adsorption of eosin dye from aqueous solution in batch process. The prepared GHAC was characterized using Brunauer, Emmett and Teller (BET), Fourier transform infrared, and scanning electron microscopy. Operational parameters such as agitation time, initial dye concentration, pH, and effect of temperature were studied. Equilibrium time for the adsorption process was attained in 6 h. Adsorption isotherms used to test the adsorption data were Langmuir, Freundlich, Temkin, and Dubinin-Radushkevich (D-R) isotherms. Adsorption equilibrium data were best described by these isotherms in the following order: Temkin > Langmuir > Freundlich > D-R. Kinetic data were fit using pseudo-first- and second-order kinetic models. Adsorption of eosin dye onto GHAC was best described by the pseudo-second-order kinetic model. Thermodynamic parameters such as ΔG0, ΔH0, and ΔS0 of the adsorption process were determined; the adso...
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: 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.
