Adsorption of polyaromatic hydrocarbons on single wall carbon nanotubes of different functionalities and diameters.
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 large-diameter nanotubes are suggested and supported by detailed characterization of the SWCNTs applied.
Gotovac
Suzana
S
Graduate School of Science and Technology, Chiba University, 263-8522 Yayoi, Chiba, Japan.
Yang
Cheol-Min
CM
Hattori
Yoshiyuki
Y
Takahashi
Kunimitsu
K
Kanoh
Hirofumi
H
Kaneko
Katsumi
K