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The effect of impregnation of activated carbon with SnCl2.2H2O on its porosity, surface composition and CO gas adsorption


Citation

Al-Khatib, Ma’an.F and Iyuke, Sunny E and Mohamad, Abu Bakar and Daud, Wan R.W and H Kadhum, Abdul Amir and M Shariff, Azmi and Yarmo, Mohd A (2002) The effect of impregnation of activated carbon with SnCl2.2H2O on its porosity, surface composition and CO gas adsorption. Carbon, 40 (11). pp. 1929-1936. ISSN 0008-6223

Abstract

Activated carbon was impregnated with different concentrations of SnCl2.2H2O. Unimpregnated and impregnated activated carbons were analysed by means of physical adsorption and XPS and were tested for CO gas adsorption in a PSA system. The adsorption isotherms of N2 at 77 K were measured and showed a Type I isotherm indicating microporous carbon for all the samples. The surface area, pore volume and pore size distribution were reduced with impregnation. XPS analysis showed an increase in the intensity of Sn3d peak with impregnation. The impregnated activated carbon showed a very good adsorption ability of CO gas compared to the unimpregnated sample. The adsorptive species responsible for CO gas adsorption was confirmed to be SnO2 instead of SnO due to the former's comparative thermodynamic stability.


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Additional Metadata

Item Type: Article
Divisions: Faculty of Engineering
DOI Number: https://doi.org/10.1016/s0008-6223(02)00026-x
Publisher: Elsevier
Keywords: A. Activated carbon; B. Impregnation; BET surface area; C. Adsorption; X-ray photoelectron spectroscopy
Depositing User: Ms. Zaimah Saiful Yazan
Date Deposited: 13 Jan 2025 01:38
Last Modified: 15 Jan 2025 06:13
Altmetrics: http://www.altmetric.com/details.php?domain=psasir.upm.edu.my&doi=10.1016/s0008-6223(02)00026-x
URI: http://psasir.upm.edu.my/id/eprint/112987
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