Document Detail

Adsorption behavior of propylamine on activated carbon fiber surfaces as induced by oxygen functional complexes.
MedLine Citation:
PMID:  16890949     Owner:  NLM     Status:  MEDLINE    
In this study, the surfaces of activated carbon fibers (ACFs) were modified by nitric acid to introduce surface oxygen complexes and to observe the influence of those complexes on the propylamine adsorption of the ACFs. It was found that the oxygen complexes including carboxylic and phenolic groups were predominantly increased, resulting in the increase of total surface acidity. However, the specific surface areas and the total pore volumes of the modified ACFs were decreased by 5-8% due to the increased blocking (or demolition) of micropores in the presence of newly introduced complexes. Despite the decrease of textural properties, it was found that the amount of propylamine adsorbed by the modified ACFs was increased by approximately 17%. From the XPS results, it was observed that propylamine reacted with strong or weak acidic groups, such as COOH or OH, on the ACF surfaces, resulting in the formation of pyrrolic-, pyridonic-, or pyridine-like structures.
Byeoung-Ku Kim; Seung-Kon Ryu; Byung-Joo Kim; Soo-Jin Park
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Publication Detail:
Type:  Journal Article     Date:  2006-08-07
Journal Detail:
Title:  Journal of colloid and interface science     Volume:  302     ISSN:  0021-9797     ISO Abbreviation:  J Colloid Interface Sci     Publication Date:  2006 Oct 
Date Detail:
Created Date:  2006-09-12     Completed Date:  2007-06-11     Revised Date:  2009-11-11    
Medline Journal Info:
Nlm Unique ID:  0043125     Medline TA:  J Colloid Interface Sci     Country:  United States    
Other Details:
Languages:  eng     Pagination:  695-7     Citation Subset:  IM    
Central Research Institute, KT&G Corporation, 302, Shinseoung-dong, Yuseong, Daejeon 305-805, South Korea.
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MeSH Terms
Carbon / chemistry*
Oxygen / chemistry*
Propylamines / chemistry*
Surface Properties
Reg. No./Substance:
0/Propylamines; 0/carbon fiber; 7440-44-0/Carbon; 7782-44-7/Oxygen

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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