Removal of Oxidative Debris from Chemically Functionalized Multi-walled Carbon Nanotube (MWCNT)

被引：0
|
作者：
Harun, Mohd Hamzah [1 ]
Salleh, Nik Ghazali Nik [1 ]
Alias, Mohd Sofian [1 ]
Mohamed, Mahathir [1 ]
Rahman, Mohd Faizal Abdul [1 ]
Hamzah, Mohd Yusof [1 ]
Umar, Khairil Nur Kamal [1 ]
Othman, Norfazlinayati [2 ]
机构：
[1] Agensi Nuklear Malaysia, Kajang 43000, Selangor, Malaysia
[2] Univ Putra Malaysia, Fac Sci, Serdang 43400, Selangor, Malaysia
来源：
INTERNATIONAL JOURNAL OF NANOELECTRONICS AND MATERIALS | 2018年 / 11卷 / 01期
关键词：
Oxidative fragments/debris; MWCNTs; chemical functionalization;
D O I：
暂无
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Oxidized multi-walled carbon nanotubes (MWCNTs) were prepared by functionalizing MWCNTs with nitric acid (70%). In order to remove the oxidative debris, in which partially attached onto the outer layer of MWCNTs side wall, the functionalized MWCNTs (f-MWCNTs) by reflux method were carried out with NaOH (1M) and followed by HCl (1M) wash. The presence of the carboxyl (-COOH) group that covalently attached onto the f-MWCNTs side wall is confirmed with acid-base titration (Boehm titration). The transmission electron microscopy images show the comparison of pristine MWCNTs, f-MWCNTs and base-acid wash of f-MWCNTs, whereas energy dispersive Xray analysis confirms the removal of sulphur, a common catalyst material typically employed in the production of carbon nanotubes (CNTs). The UV-Visible spectroscopy shows the dispersibility of pure and functionalized MWCNTs in water (H2O).
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页码：43 / 48
页数：6
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