Adsorption thermodynamics and kinetics of nickel (II) ions onto Na-ZSM-5 and mordenite zeolites
by Tao Jin, Dao-Hong Xia, Ming-Xia Liu, Yu-Zhi Xiang, Xi-Qiang Si, Bin Liu, Bin Xu
International Journal of Environmental Engineering (IJEE), Vol. 1, No. 3, 2009

Abstract: The potential to remove nickel (II) ions from water using Na-ZSM-5 and mordenite was thoroughly investigated. The effects of relevant parameters, such as adsorbent dose, ionic concentration, and temperature on nickel (II) adsorption capacity were examined. Compared with the pseudo-first-order kinetic model and the intraparticle diffusion model, these sorption processes all follow the pseudo-second-order kinetic model best. The value of activation energy (E_a) indicated a chemical sorption process involving weak interactions between sorbent and sorbate. Mordenite was found to be a more effective sorbent for the removal of nickel (II) ions.

Online publication date: Tue, 11-Aug-2009

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