Mechanism of adsorption of carbon nanotubes onto sugar in aqueous solutions

2015 Fiscal Year Final Research Report

• Project/Area Number: 26600033
• Research Category: Grant-in-Aid for Challenging Exploratory Research
• Allocation Type: Multi-year Fund
• Research Field: Nanomaterials chemistry
• Research Institution: National Institute of Advanced Industrial Science and Technology
• Principal Investigator: Hirano Atsushi 国立研究開発法人産業技術総合研究所, ナノ材料研究部門, 主任研究員 (90613547)
• Project Period (FY): 2014-04-01 – 2016-03-31
• Keywords: ナノチューブ・フラーレン

Outline of Final Research Achievements

In this study, the redox chemistry of carbon nanotube (CNTs) was examined in the presence of surfactants. Redox reactions of the SWCNTs were observed in the present of sodium dodecyl sulfate, which was associated with the adsorption of CNTs onto polysaccharide gels. Molecular dynamics simulations were performed for investigating the assembly of the surfactant molecules around a CNT. The positively charged SWCNT as a model of the oxidized SWCNT showed an increase in the number of the surfactant molecules around the SWCNT. This result is consistent with the experimental phenomena in which more oxidized SWCNTs, i.e., narrower-band gap SWCNTs, have less affinity for polysaccharide.

Free Research Field

物理化学、熱力学、蛋白質科学