Abstract
Abstract The removal of methylene blue (MB) from aqueous solution with the help of fly ash (FA) and activated FA was investigated by kinetics and isotherms modeling studies. The results of physical and chemical analyses of the FA after activation process indicate the formation of new geo-adsorbent. The adsorption kinetics behavior of MB onto fly ash and activated fly ash were studied and compeered using pseudo-first-order, pseudo-second-order and intra-particle diffusion models. The equilibrium adsorption data were evaluated by Langmuir, Freundlich and Temkin isotherm equations. The investigation of adsorption isotherms data were fitted well to Langmuir isotherm model and the adsorption kinetic was better expressed by pseudo-second-order equation. Based on the Langmuir model, the maximum monolayer adsorption capacity of MB using FA and activated fly ash were 2.88 and 37.08 mg/g, respectively. The results indicate that the activated FA is an efficient and low-cost adsorbent for decontamination of dye containing water. In addition, the other results suggested that the formation of new stable material for encapsulation of aqueous solution contaminated by high concentration of methylene blue.
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.
