| ADSORPTION OF Pb(II) ON METAL OXIDE PARTICLES CONTAINING ALUMINUM AND TITANIUM IN AQUEOUS SOLUTIONS |
| Moon-Sun Kim, Sung Chul Hong, and Jaygwan G. Chung† |
| Department of Chemical Engineering, Sungkyunkwan University, 300 Chunchun-dong Jangan-gu, Suwon, Gyunggi-do, 440-746, Republic of Korea |
Corresponding Author:
Jaygwan G. Chung ,Tel: +82-2-544-4088, Fax: +82-31-290-7272 , Email: jgchung@skku.edu
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Received: October 8, 2004; Accepted: March 8, 2005. |
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| ABSTRACT |
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Metal oxide particles with mole ratio of aluminum: titanium of 1:1 were synthesized by a sol-gel method. Langmuir (a) and Freundlich (b) adsorption isotherms of dissolved lead [Pb( 11)] ion on the metal oxide particles containing aluminum and titanium were determined as follows, respectively,
1.326C,
(a) q" ~ F+ 6.678C„ , (b) 9, = 0.687C;"I N7' at pH 6 where, correlation coefficients (R2) of Langmuir and Freundlich adsorption isotherms were 0.95 and 0.96, respectively.
The overall adsorption rate of Pb( II) on the metal oxide particles containing aluminum and titanium was determined by a differential bed reactor. The overall adsorption rate at pH 6 was as a following equation.
;- = 0.016Cr72M-30.060?i4 270 at pH 6
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| Keywords:
adsorption | removal of lead [Pb( 11)] | metal oxide particle containing aluminum and titanium | sol-gel method | aqueous solutions |
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