Journal
JOURNAL OF COLLOID AND INTERFACE SCIENCE
Volume 314, Issue 1, Pages 18-24Publisher
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.jcis.2007.04.080
Keywords
single wall carbon nanotubes; polyaromiatic hydrocarbons (PAH); nanotubes functionalization; adsorption from solution
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Adsorption from toluene solution of phenanthrene and tetracene on single wall carbon nanotubes (SWCNT) is measured. Comparison of adsorbents such as laser ablation and HipCO samples reveals multiple factors influencing the adsorption mechanism. Acid functionalized carbon nanotubes have shown markedly increased adsorbability for the polyaromatic molecules. The linear tetracene molecule's adsorption is more promoted on nanotubes with increasing diameter, but also additionally with presence of the carboxylic groups. The adsorption mechanisms on carboxylic sites and on the bold, non-functionalized lame-diameter nanotubes are suggested and supported by detailed characterization of the SWCNTs applied. (c) 2007 Published by Elsevier Inc.
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