Sorption Behavior of Strong Acid Cationic Exchange Fiber for Indium

Ming Yu Li; Jun Jun Lv; Qing Xuan Zeng; Jian Bo Li

doi:10.4028/www.scientific.net/AMR.487.653

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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 487Sorption Behavior of Strong Acid Cationic Exchange...

Sorption Behavior of Strong Acid Cationic Exchange Fiber for Indium

Abstract:

In (III) was quantitative adsorption by strong acid cationic exchange fiber (SACEF) in the medium of pH=2.50 sulphuric aicd. The statically saturated sorption capacity of SACEF was 153.8 mgg-1. 0.5 molL-1 H2SO4 could be used as an eluant. The elution efficiency was 99%. The SACEF could be regenerated and reused without apparent decrease of sorption capacity. The sorption rate constant was k287K=0.09379 gmg-1min-1, k300 K=0.1159 gmg-1min-1, k321 K=0.4046 gmg-1min-1 and k350 K=0.6678 gmg-1min-1, respectively. The apparent sorption activation energy of SACEF for In (III) was 28.28 kJmol-1.The sorption behavior of SACEF for In (III) obeyed the Freundlich isotherm. The enthalpy change was H=5.67 kJmol-1.

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Periodical:

Advanced Materials Research (Volume 487)

Pages:

653-657

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.487.653

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Online since:

March 2012

Authors:

Ming Yu Li, Jun Jun Lv, Qing Xuan Zeng, Jian Bo Li

Keywords:

Activation Energy, Enthalpy Change, Indium (III), Sorption, Strong Acid Cationic Exchange Fiber (SACEF)

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