title: Adsorption of polyaromatic hydrocarbons on single wall carbon nanotubes of different functionalities and diameters.
abstract: 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.
authors.affiliation: Graduate School of Science and Technology, Chiba University, 263-8522 Yayoi, Chiba, Japan.
authors.forename: Suzana
authors.initials: S
authors.lastname: Gotovac
authors.forename: Cheol-Min
authors.initials: CM
authors.lastname: Yang
authors.forename: Yoshiyuki
authors.initials: Y
authors.lastname: Hattori
authors.forename: Kunimitsu
authors.initials: K
authors.lastname: Takahashi
authors.forename: Hirofumi
authors.initials: H
authors.lastname: Kanoh
authors.forename: Katsumi
authors.initials: K
authors.lastname: Kaneko