2014•Applied Mechanics and MaterialsOpen access

Adsorption of Zn(II) from Aqueous Solution by Attapulgite

Jun Ren, Dan Xu, Ling Tao, Zhao Wen Fu

Abstract

The adsorption behavior of Zn (II) by attapulgite were studied in the paper, The effects of adsorbent dose. Contact time, ionic strength and temperature on the adsorption were investigated. The maximum adsorption capacity is 4.129 mg.g-1 at 333 K. The kinetic study indicated that the adsorption was a pseudo-second-order process. The adsorption was well fitted by the Langmuir adsorption isotherm model. The results indicated that the sorption of Zn (II) by attapulgite was a spontaneous process, and the sorption was endothermic.

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Available abstract

Key concepts: Adsorption, Endothermic process, Sorption, Aqueous solution, Ionic strength, Langmuir adsorption model, Chemistry, Sorption isotherm