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Document Type |
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Article In Journal |
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Document Title |
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Development of selective chloroform sensor with transition metal oxide nanoparticle/multi-walled carbon nanotube nanocomposites by modified glassy carbon electrode Development of selective chloroform sensor with transition metal oxide nanoparticle/multi-walled carbon nanotube nanocomposites by modified glassy carbon electrode |
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Document Language |
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English |
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Abstract |
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Transition metal oxide (NiO) nanoparticles decorated multi-walled carbon nanotubes (NiO/MWCNT nanocomposites, NCs) were prepared by a facile solution method using reducing agents in alkaline medium. The NiO/MWCNT NCs were characterized by UV/vis, FT-IR, energy-dispersive X-ray spectroscopy (XEDS), powder X-ray diffraction (XRD), field-emission scanning electron microscopy (FESEM), and scanning electron microscopy (TEM). The NiO NPs or NiO/MWCNTs were deposited separately on flat glassy carbon electrode (GCE) with conducting binders (5% nafion) to result in a sensor that has a fast response towards selective chloroform (CHCl3). Features including high-sensitivity, lower-detection limit, reliability, reproducibility, ease of integration, long-term stability, selective, and enhanced electrochemical performances are investigated in details. It is detailed studied the sensor performances with NiO NPs/GCE and NiO/MWCNT/GCE electrodes separately and found that NiO/MWCNT/GCE exhibits the higher sensitivity and lower detection limit compared to NiO/GCE assembly. The calibration plot is linear (r(2) = 0.9763) over concentration range (3.5 nM to 35.0 mM) with NiO/MWCNT/GCE. The sensitivity and detection limit was calculated for NiO/MWCNT/GCE as similar to 917.7 nA/cm(2) mu M and 0.1034 +/- 0.0002 nM (at a signal-to-noise-ratio, SNR of 3) respectively. Finally, the efficiency of the proposed chemi-sensors can be applied and effectively utilized for the detection of toxic chloroform compound in environmental and healthcare fields in broad scales |
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ISSN |
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1876-1070 |
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Journal Name |
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JOURNAL OF THE TAIWAN INSTITUTE OF CHEMICAL ENGINEERS |
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Volume |
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66 |
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Issue Number |
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66 |
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Publishing Year |
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1437 AH
2016 AD |
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Article Type |
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Article |
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Added Date |
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Thursday, August 3, 2017 |
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Researchers
| M Rahman | Rahman, M | Researcher | | |
| H Balkhoyor | Balkhoyor, H | Researcher | | |
| A Asiri | Asiri, A | Researcher | | |
| t Sobahi | Sobahi, t | Researcher | | |
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