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ABSTRACT The adsorption of rhodamine B (RhB) onto microwave-activated rice husk ash (ARHA) was conducted to demonstrate the capability of an inexpensive abundant biomaterial as an alternating bio-sorbent for the… Click to show full abstract
ABSTRACT The adsorption of rhodamine B (RhB) onto microwave-activated rice husk ash (ARHA) was conducted to demonstrate the capability of an inexpensive abundant biomaterial as an alternating bio-sorbent for the removal of dye residue from wastewater. Experimental data show that ARHA achieved the maximum adsorption capacity of 21.89 mg/g at pH 5.5 and 303 K. The absorption process was followed pseudo-second-order kinetic model and adsorption equilibrium data were well described by the Freundlich model. Thermodynamic studies indicated that the RhB adsorption onto ARHA was endothermic and spontaneous. GRAPHICAL ABSTRACT
Journal Title: Journal of Dispersion Science and Technology
Year Published: 2017
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