%D 2014
%O cited By 0; Conference of 3rd International Conference on Process Engineering and Advanced Materials, ICPEAM 2014 ; Conference Date: 3 June 2014 Through 5 June 2014; Conference Code:114811
%V 625
%T Adsorptive removal of ni2+ from aqueous solution onto rice husk-based activated carbon
%R 10.4028/www.scientific.net/AMM.625.893
%X The potential of rice husk-based activated carbon (RHAC) as an alternative low-cost adsorbent for the removal of Ni2+ from aqueous solution was studied. RHAC was prepared via chemical treatment using NaOH followed by the carbonization process. The textural properties of rice husk-based activated carbon, i.e. surface area (253 m2/g) and pore volume (0.17 cm2/g), were determined by N2 adsorption. The adsorption studies to remove Ni2+ from aqueous solution using RHAC were carried out at a fixed initial concentration of Ni2+ (150 ppm) with varying RHAC as a function of contact time at room temperature. The concentration of Ni2+ was determined by atomic absorption spectrophotometer (AAS). The maximum removal of Ni2+ was increased from 40 to 89 when the amount of RHAC was increased from 0.1 g to 0.5 g. The isotherm and kinetic analyses showed that equilibrium data of adsorption studies fitted well Langmuir, Freundlich and second order kinetic models. © 2014 Trans Tech Publications, Switzerland.
%L scholars4728
%P 893-896
%I Trans Tech Publications Ltd
%A M.F. Taha
%A A.S. Shuib
%A M.S. Shaharun
%A A. Borhan
%J Applied Mechanics and Materials
%K Activated carbon; Activated carbon treatment; Carbonization; Metal ions; Metals; Sodium hydroxide; Wastewater, Atomic absorption spectrophotometer; Carbonization process; Chemical treatments; Initial concentration; Low-cost adsorbents; Metal ion adsorption; Rice husk; Second order kinetics, Adsorption