Voltammetric detection of nitroaromatic compounds using carbon-nanomaterials-based electrodes
Zhang, HX; Zhang, JH
| HERO ID | 743919 |
|---|---|
| In Press | No |
| Year | 2011 |
| Title | Voltammetric detection of nitroaromatic compounds using carbon-nanomaterials-based electrodes |
| Authors | Zhang, HX; Zhang, JH |
| Journal | Canadian Journal of Chemistry |
| Volume | 89 |
| Issue | 1 |
| Page Numbers | 8-12 |
| Abstract | The morphology of glassy carbon surfaces was investigated by the atomic force microscope (AFM) method. Multi-wall carbon nanotubes (MWCNTs) were purified and investigated with a scanning electron microscope (SEM) and a transmission electron microscope (TEM). An electrochemical technique based on the glassy carbon electrode (GCE) or MWCNT-modified GCEs was used for the detection of nitroaromatic compounds (NACs), namely 2,4,6-trinitrotoluene (TNT), 1,3,5-trinitrobenzene (TNB), 2,4-dinitrotoluene (2,4-DNT), and 1,3-dinitrobenzene (1,3-DNB). MWCNT-modified GCEs were more sensitive than GCEs to TNB, 2,4-DNT, and 1,3-DNB, with the detection limit down to b level, whereas the modified GCEs showed lower sensitivity to TNT. In varying degrees, the accumulation of nitro compounds can be promoted by MWCNT-modified GCEs in the detection process, a property which can be attributed to the large surface area and graphene-sheet structure of MWCNTs. |
| Doi | 10.1139/v10-064 |
| Wosid | WOS:000286474600002 |
| Url | http://www.nrcresearchpress.com/doi/abs/10.1139/V10-064 |
| Is Certified Translation | No |
| Dupe Override | No |
| Is Public | Yes |
| Language Text | English |
| Keyword | glassy carbon; carbon nanotubes; modified; electrochemical detection; nitro compounds; sensitivity |
| Is Qa | No |