Aufsatz in einer Fachzeitschrift
A flower-like ZnO-Ag2O nanocomposite for label and mediator free direct sensing of dinitrotoluene
Details zur Publikation
Autor(inn)en: | Chakraborty, U.; Bhanjana, G.; Adam, J.; Mishra, Y.; Kaur, G.; Chaudhary, G.; Kaushik, A. |
Verlag: | ROYAL SOC CHEMISTRY |
Publikationsjahr: | 2020 |
Zeitschrift: | RSC Advances |
Seitenbereich: | 27764-27774 |
Jahrgang/Band : | 10 |
Heftnummer: | 46 |
Erste Seite: | 27764 |
Letzte Seite: | 27774 |
Seitenumfang: | 11 |
ISSN: | 2046-2069 |
eISSN: | 2046-2069 |
DOI-Link der Erstveröffentlichung: |
URN / URL: |
Zusammenfassung, Abstract
2,4-Dinitrotoluene (2,4-DNT) is a nitro aromatic compound used as a raw material for trinitrotoluene (TNT) explosive synthesis along with several other industrial applications. Easy, rapid, cost-effective, and selective detection of 2,4-DNT is becoming essential due to its hepato carcinogenic nature and presence in surface as well as ground water as a contaminant. Keeping this in view, this research, for the first-time, reports the synthesis of novel ZnO-Ag2O composite nanoflowers on a gold (Au) substrate, to fabricate an electrochemical sensor for label-free, direct sensing of 2,4-DNT selectively. The proposed ZnO-Ag2O/Au sensor exhibits a sensitivity of 5 mu A mu M(-1)cm(-2)with a low limit of detection (LOD) of 13 nM, in a linear dynamic range (LDR) of 0.4 mu M to 40 mu M. The sensor showed reasonably high re-usability and reproducibility, with reliable results for laboratory and real-world samples.
2,4-Dinitrotoluene (2,4-DNT) is a nitro aromatic compound used as a raw material for trinitrotoluene (TNT) explosive synthesis along with several other industrial applications. Easy, rapid, cost-effective, and selective detection of 2,4-DNT is becoming essential due to its hepato carcinogenic nature and presence in surface as well as ground water as a contaminant. Keeping this in view, this research, for the first-time, reports the synthesis of novel ZnO-Ag2O composite nanoflowers on a gold (Au) substrate, to fabricate an electrochemical sensor for label-free, direct sensing of 2,4-DNT selectively. The proposed ZnO-Ag2O/Au sensor exhibits a sensitivity of 5 mu A mu M(-1)cm(-2)with a low limit of detection (LOD) of 13 nM, in a linear dynamic range (LDR) of 0.4 mu M to 40 mu M. The sensor showed reasonably high re-usability and reproducibility, with reliable results for laboratory and real-world samples.
