Effect of air oxidation of Rayon-based activated carbon fibers on the adsorption behavior for formaldehyde

The tailoring of pore surface chemistry of activated carbon fibers is shown to be an effective method for improving the adsorption efficiency of various volatile chemical compounds (VOCs). An oxidation treatment with air resulted in a significant increase in the adsorption capacities and breakthroug...

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Bibliographic Details
Published in:Carbon (New York) 2002, Vol.40 (13), p.2291-2300
Main Authors: Rong, Haiqin, Ryu, Zhenyu, Zheng, Jingtang, Zhang, Yuanli
Format: Article
Language:English
Subjects:
A. Activated carbon
Applied sciences
Atmospheric pollution
B. Oxidation
Carbon fibers
Chemistry
D. Adsorption properties
Exact sciences and technology
General and physical chemistry
Indoor pollution and occupational exposure
Pollution
Solid-gas interface
Surface physical chemistry
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Summary:The tailoring of pore surface chemistry of activated carbon fibers is shown to be an effective method for improving the adsorption efficiency of various volatile chemical compounds (VOCs). An oxidation treatment with air resulted in a significant increase in the adsorption capacities and breakthrough time for Rayon-based activated carbon fibers (ACFs) in removal of formaldehyde. The porous structure parameters of Rayon-based ACFs were determined with standard nitrogen adsorption analysis. The pore surface chemistry of samples under study was analyzed by Fourier Transform Infrared spectra (FTIR). Thus to some extent, the relationship between the adsorption properties, porous structure and pore surface chemistry was revealed.
ISSN:0008-6223
1873-3891
DOI:10.1016/S0008-6223(02)00109-4