Kaur, Rajnish and Paul, A.K. and Deep, Akash (2014) Nanocomposite of europium organic framework and quantum dots for highly sensitive chemosensing of trinitrotoluene. Forensic Science International, 242. pp. 88-93. ISSN 0379-0738
Full text not available from this repository.Abstract
Luminescent metal-organic frameworks (MOFs) are considered as next-generation sensor materials for small molecules and explosives. In the present work, a nanocomposite of luminescent europium organic framework (EuOF) and CdSe quantum dots (QDs) has been first time investigated for photoluminescence (PL) based highly sensitive detection of trinitrotoluene (TNT). The nanocomposite EuOF/QD has been synthesized by initiating the growth of EuOF in the presence of QDs. The successful synthesis of the product has been verified with the help of electron microscopy, X-ray diffraction analysis, and surface area measurements. Compared to EuOF alone, the EuOF/QD nanocomposite offers reproducible and stable measurements. The linear range of PL quenching based detection of TNT with EuOF/QD nanocomposite is 5-1000 ppb with the detection limit of 3 ppb. The detection of TNT with EuOF/QD is selective with respect to some other investigated aromatic compounds, such as phenol, o-cresol, toluene, benzene, nitrobenzene and nitrophenol.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | Chemosensing; Europium; Metal organic frameworks; Nanocomposite; Quantum dots; Trinitrotoluene |
| Subjects: | CSIO > Nano Science and Nano Technology |
| Divisions: | Nano Science and Nano Technology |
| Depositing User: | Ms. Jyotsana |
| Date Deposited: | 09 Aug 2018 12:06 |
| Last Modified: | 09 Aug 2018 12:06 |
| URI: | http://csioir.csio.res.in/id/eprint/505 |
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