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Adsorption Removal of Rhodamine-B Dye from Aqueous Solution Using Rhamnus Stone as Low Cost Adsorbent

Issue:
JNUS - Volume 20, No. 1 - March 2017

Authors:
Khudhair. A. Al-Rudaini


Abstract:
In this study, low-cost Rhamnus stone was used as adsorbents for the adsorption of Rhodamine-B (RhB) dye from aqueous solution by batch experiments under different condition of adsorbent weight, contact time, pH and initial dye concentration. Kinetic data obeyed to Ho-Mckay pseudo second order equation. Freundlich and Langmuir isotherms were used to test the equilibrium data and the results shows better fit with Langmuir isotherm with maximum adsorption capacity 39mg/g. Thermodynamic parameters show the adsorption of RhB onto Rhamnus stone was spontaneous and endothermic. [DOI: 10.22401/JNUS.20.1.05]

Keywords:
Rhodamine-B,Rhamnus stone,Adsorption,kinetic,Thermodynami

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