Abstract-This work is to study the adsorption of a commercial dye (magenta color) for silk yarn by low-cost adsorbents such as green perlite and shrimp shell (Macrobrachium rosenbergii). The adsorption experiments were carried out in batch process without adjusting pH. The various parameters, such as contact time, initial dye concentration and adsorbent doses were evaluated at the natural pH. The equilibrium data at various concentrations were analyzed using Langmuir, Freundlich and Temkin isotherms. The results showed that the maximum adsorption capacities of Langmuir isotherm valued 14.805 mg/g for green perlite and 5.621 mg/g for shrimp shell at 30º C. The kinetic data was better fitted with pseudosecond order for the adsorbents. Thermodynamic properties such as free energy (ΔG), enthalpy (ΔH) and entropy (ΔS) indicated spontaneous and endothermic in nature of adsorption for all adsorbents. The study revealed that green perlite and shrimp shell can be used as an efficient adsorbents for the removal of dye solution.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.
hi@scite.ai
10624 S. Eastern Ave., Ste. A-614
Henderson, NV 89052, USA
Copyright © 2024 scite LLC. All rights reserved.
Made with 💙 for researchers
Part of the Research Solutions Family.