A facile and novel approach towards carboxylic acid functionalization of multiwalled carbon nanotubes and efficient water dispersion

Ata Ur Rehman; Syed Mustansar Abbas; Hafiz Muhammad Ammad; Amin Badshah; Zulfiqar Ali; Dalaver H. Anjum

doi:10.1016/j.matlet.2013.07.009

A facile and novel approach towards carboxylic acid functionalization of multiwalled carbon nanotubes and efficient water dispersion

Ata Ur Rehman, Syed Mustansar Abbas, Hafiz Muhammad Ammad, Amin Badshah, Zulfiqar Ali, Dalaver H. Anjum

Imaging & Characterization Core Lab

Research output: Contribution to journal › Article › peer-review

34 Scopus citations

Abstract

A convenient, cheap and mild covalent functionalization route for multiwalled carbon nanotubes (MWCNTs) have been developed for the first time. The MWCNTs were treated with wet chemical oxidants (NaNO2/HCl, HNO3/H2O2) in order to modify MWCNTs with carboxyl groups. Surface functionality groups and morphology of MWCNTs were analyzed by FTIR, TGA, SEM and TEM. The results consistently confirmed the formation of carboxyl functionalities on MWCNTs, while the structure of MWCNTs has remained relatively intact. Functionalized MWCNTs showed good dispersion in aqueous media than untreated MWCNTs. Results show that NaNO2/HCl treatment is best suited for the chemical functionalization, giving optimum surface carboxyl groups and minimum length shortening of MWCNTs. © 2013 Elsevier B.V.

Original language	English (US)
Pages (from-to)	253-256
Number of pages	4
Journal	Materials Letters
Volume	108
DOIs	https://doi.org/10.1016/j.matlet.2013.07.009
State	Published - Oct 2013

ASJC Scopus subject areas

Mechanics of Materials
General Materials Science
Mechanical Engineering
Condensed Matter Physics

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10.1016/j.matlet.2013.07.009

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title = "A facile and novel approach towards carboxylic acid functionalization of multiwalled carbon nanotubes and efficient water dispersion",

abstract = "A convenient, cheap and mild covalent functionalization route for multiwalled carbon nanotubes (MWCNTs) have been developed for the first time. The MWCNTs were treated with wet chemical oxidants (NaNO2/HCl, HNO3/H2O2) in order to modify MWCNTs with carboxyl groups. Surface functionality groups and morphology of MWCNTs were analyzed by FTIR, TGA, SEM and TEM. The results consistently confirmed the formation of carboxyl functionalities on MWCNTs, while the structure of MWCNTs has remained relatively intact. Functionalized MWCNTs showed good dispersion in aqueous media than untreated MWCNTs. Results show that NaNO2/HCl treatment is best suited for the chemical functionalization, giving optimum surface carboxyl groups and minimum length shortening of MWCNTs. {\textcopyright} 2013 Elsevier B.V.",

author = "Rehman, {Ata Ur} and Abbas, {Syed Mustansar} and Ammad, {Hafiz Muhammad} and Amin Badshah and Zulfiqar Ali and Anjum, {Dalaver H.}",

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T1 - A facile and novel approach towards carboxylic acid functionalization of multiwalled carbon nanotubes and efficient water dispersion

AU - Rehman, Ata Ur

AU - Abbas, Syed Mustansar

AU - Ammad, Hafiz Muhammad

AU - Badshah, Amin

AU - Ali, Zulfiqar

AU - Anjum, Dalaver H.

N1 - KAUST Repository Item: Exported on 2020-10-01

PY - 2013/10

Y1 - 2013/10

N2 - A convenient, cheap and mild covalent functionalization route for multiwalled carbon nanotubes (MWCNTs) have been developed for the first time. The MWCNTs were treated with wet chemical oxidants (NaNO2/HCl, HNO3/H2O2) in order to modify MWCNTs with carboxyl groups. Surface functionality groups and morphology of MWCNTs were analyzed by FTIR, TGA, SEM and TEM. The results consistently confirmed the formation of carboxyl functionalities on MWCNTs, while the structure of MWCNTs has remained relatively intact. Functionalized MWCNTs showed good dispersion in aqueous media than untreated MWCNTs. Results show that NaNO2/HCl treatment is best suited for the chemical functionalization, giving optimum surface carboxyl groups and minimum length shortening of MWCNTs. © 2013 Elsevier B.V.

AB - A convenient, cheap and mild covalent functionalization route for multiwalled carbon nanotubes (MWCNTs) have been developed for the first time. The MWCNTs were treated with wet chemical oxidants (NaNO2/HCl, HNO3/H2O2) in order to modify MWCNTs with carboxyl groups. Surface functionality groups and morphology of MWCNTs were analyzed by FTIR, TGA, SEM and TEM. The results consistently confirmed the formation of carboxyl functionalities on MWCNTs, while the structure of MWCNTs has remained relatively intact. Functionalized MWCNTs showed good dispersion in aqueous media than untreated MWCNTs. Results show that NaNO2/HCl treatment is best suited for the chemical functionalization, giving optimum surface carboxyl groups and minimum length shortening of MWCNTs. © 2013 Elsevier B.V.

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UR - https://linkinghub.elsevier.com/retrieve/pii/S0167577X1300935X

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DO - 10.1016/j.matlet.2013.07.009

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SP - 253

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JO - Materials Letters

JF - Materials Letters

ER -

A facile and novel approach towards carboxylic acid functionalization of multiwalled carbon nanotubes and efficient water dispersion

Abstract

ASJC Scopus subject areas

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