Physical functionalization of multi-walled carbon nanotubes for enhanced dispersibility in aqueous medium

被引：26
|
作者：
Youssry, Mohamed [1 ]
Al-Ruwaidhi, Maisa [1 ]
Zakeri, Mahdiyeh [1 ]
Zakeri, Mohadese [1 ]
机构：
[1] Qatar Univ, Coll Arts & Sci, Dept Chem & Earth Sci, Doha 2713, Qatar
来源：
EMERGENT MATERIALS | 2020年 / 3卷 / 01期
关键词：
Multi-walled carbon nanotubes; Aqueous dispersions; Physical functionalization; Colloidal stability; DISPERSIONS; SOLUBILIZATION; STABILIZATION; SUSPENSIONS; ADSORPTION; QUALITY;
D O I：
10.1007/s42247-020-00076-3
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Noncovalent functionalization of multi-walled carbon nanotubes (MWCNTs) by anionic surfactants (sodium dodecylbenzene sulfonate; SDBS and sodium cholate; SC) results in stable aqueous dispersions. SDBS showed better dispersing efficiency at lower concentration than that of SC due to the stabilizing pi-pi stacking induced by the presence of benzene ring in the tail of SBDS. The hemimicelle formation on the surface of nanotubes is likely to be the dominant dispersion mechanism that imparts higher colloidal stability for the MWCNTs in aqueous medium.
引用
收藏
页码：25 / 32
页数：8
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