Ayawei, N. and Inengite, A. K. and Wankasi, D. and Dikio, E. D. (2015) Synthesis, Characterization and Application of Zn/Al-CO3 for the Removal of Lead Ions. American Chemical Science Journal, 7 (4). pp. 213-226. ISSN 22490205
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Abstract
In the present work, Zn/Al layered double hydroxide of ratio 2:1 was synthesis by co-precipitation method from their nitrate salts and utilized as adsorbent for the removal of lead ions from aqueous solution. The synthesized Zn/Al-CO3 was characterized by SEM, XRD and FTIR. The effect of various parameters such as contact time, initial concentration and variable temperature were investigated. The results show that the adsorption process was depended on contact time rather than temperature and concentration. Studies of the essential thermodynamic parameters shows that the adsorption process was rapid, exothermic and spontaneous and also fitted both Langmuir and Freundlich isotherm. The results of various kinetic models are zero-order kinetics model R2 =1, second-order kinetic model R2 = 0.998 and pseudo-second order kinetics model R2 = 0.999.
Item Type: | Article |
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Subjects: | Digital Academic Press > Chemical Science |
Depositing User: | Unnamed user with email support@digiacademicpress.org |
Date Deposited: | 10 Jul 2023 05:18 |
Last Modified: | 23 May 2024 06:45 |
URI: | http://science.researchersasian.com/id/eprint/1407 |