Studies and comparison of the liquid adsorption behavior and surface properties of single- and multiwall carbon nanotubes by capillary rise method

被引：10
作者：
Mezgebe, Mebrahtu [1 ]
Jiang, Lin-Hai [1 ]
Shen, Qing [1 ]
Du, Cong [1 ]
Yu, Hao-Ran [1 ]
机构：
[1] Donghua Univ, Polymer Dept, State Key Lab Modificat Chem Fibers & Polymers, Shanghai 201620, Peoples R China
来源：
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS | 2012年 / 415卷
关键词：
Carbon nanotubes; Singlewall; Multiwall; Liquid adsorption; Surface properties; INVERSE GAS-CHROMATOGRAPHY; WICKING TECHNIQUE; SPECTROSCOPY; KINETICS; TENSION; FIBERS;
D O I：
10.1016/j.colsurfa.2012.09.046
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
The liquid adsorption behaviors and surface properties of single- (SWCNT) and multiwall (MWCNT) carbon nanotubes were studied and compared by the capillary rise method. It was found that these CNTs both adsorbed the diiodomethane greatly as compared with other liquids, e.g. water, formamide and hexane, and the reason is due to the total surface free energy of these CNTs both dominated by the Lifshitz-van der Waals interactions component, especially the SWCNTs at about 95%. Comparison further indicated that the SWCNT adsorbed the polar liquid greatly due to stronger in the Lewis base component and the MWCNT adsorbed the non-polar liquid greatly due to stronger in the Lewis acid component. The total surface free energy of SWCNT is about 50 mN/m slight greater than that of the MWCNT. (C) 2012 Elsevier B.V. All rights reserved.
引用
收藏
页码：86 / 90
页数：5
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