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Separation Science and Technology Volume 38, 2003 - Issue 3
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Original Articles

Evaluation of PAN–TiO2 Composite Adsorbent for Removal of Pb(II) Ion in Aqueous Solution

Hyung-Tae Kim Department of Chemical Engineering, Yonsei University, Seoul, Korea
,
Chang-Ha Lee Department of Chemical Engineering, Yonsei University, Seoul, Korea
,
Yong-Gun Shul Department of Chemical Engineering, Yonsei University, Seoul, Korea
,
Jei-Kwon Moon Korea Atomic Energy Research Institute, Daejeon, KoreaCorrespondence[email protected]
&
Eil-Hee Lee Korea Atomic Energy Research Institute, Daejeon, Korea
Pages 695-713 | Received 01 Jul 2001, Published online: 15 Aug 2006
 
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Abstract

A polyacrylonitrile–TiO2 composite adsorbent bead was prepared to remove Pb2+ ion in aqueous solution. The dual nozzle technique was applied to prepare a spherical bead. The prepared composite adsorbent was found to be highly porous and stable against strong acids. Adsorption tests showed that Pb2+ ion adsorption increased in proportion to pH and Pb2+ ion was completely removed at pH 5.60. The equilibrium and kinetic parameters such as equilibrium constant, adsorption capacity, film mass-transfer coefficient, and effective diffusivity were also evaluated by modeling the experimental data.

Acknowledgments

This project has been carried out under the Nuclear R&D program by MOST, and was also supported by the Brain Korea 21 project.

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