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Nitrobenzene adsorption in activated carbon as observed by NMR
Author(s) -
Pel L.,
Valckenborg R. M. E.,
Kopinga K.,
Aarden F. B.,
Kerkhof P. J. A. M.
Publication year - 2003
Publication title -
aiche journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.958
H-Index - 167
eISSN - 1547-5905
pISSN - 0001-1541
DOI - 10.1002/aic.690490121
Subject(s) - nitrobenzene , adsorption , activated carbon , relaxation (psychology) , chemistry , carbon fibers , exponential function , chemical engineering , materials science , analytical chemistry (journal) , organic chemistry , composite material , catalysis , psychology , social psychology , composite number , engineering , mathematical analysis , mathematics
The adsorption of nitrobenzene in activated carbon was investigated by nuclear magnetic resonance (NMR). Because of the short relaxation times and carbon is an electrically conducting material, a specially adapted NMR setup was used. It was found that during the adsorption process the nitrobenzene profiles can be scaled using the Boltzmann transformation and the overall effective diffusivity can be approximated by an exponential function of the nitrobenzene content.