Graphenes prepared from multi-walled carbon nanotubes and stacked graphene nanofibers for detection of 2,4,6-trinitrotoluene (TNT) in seawater

Shu Min Tan, Chun Kiang Chua, Martin Pumera

Research output: Contribution to journalArticle

18 Citations (Scopus)

Abstract

The study on explosive materials is paramount due to the potential hazards to national security and health. When disposed of, explosives can cause seawater pollution. The detection of 2,4,6-trinitrotoluene (TNT) in seawater has been examined on two different forms of graphene, mainly graphene prepared from the unzipping of multi-walled carbon nanotubes (MWCNTs) and from the exfoliation of stacked graphene nanofibers (SGNFs). Graphene sheets prepared from MWCNTs exhibited sheet dimensions of 5000 × 300 nm, while graphene prepared from SGNFs exhibited sheet dimensions of 50 × 50 nm. Graphene prepared from MWCNTs was found to exhibit a higher order of sensitivity than the one prepared from nanofibers in both borate buffer solution and seawater. We demonstrate that it is of high importance to study different sources and methods of preparation of graphenes for analytical chemistry applications.

Original languageEnglish
Pages (from-to)1700-1704
Number of pages5
JournalAnalyst
Volume138
Issue number6
DOIs
Publication statusPublished - 2013 Mar 21

Fingerprint

Trinitrotoluene
Nanofibers
trinitrotoluene
Carbon Nanotubes
Graphite
Seawater
Graphene
Carbon nanotubes
seawater
explosive
national security
borate
hazard
pollution
Security Measures
Borates
National security
detection
carbon nanotube
Hazards

All Science Journal Classification (ASJC) codes

  • Analytical Chemistry
  • Biochemistry
  • Environmental Chemistry
  • Spectroscopy
  • Electrochemistry

Cite this

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Graphenes prepared from multi-walled carbon nanotubes and stacked graphene nanofibers for detection of 2,4,6-trinitrotoluene (TNT) in seawater. / Tan, Shu Min; Chua, Chun Kiang; Pumera, Martin.

In: Analyst, Vol. 138, No. 6, 21.03.2013, p. 1700-1704.

Research output: Contribution to journalArticle

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