MULTIWALL CARBON NANOTUBES MODIFIED CARBON PASTE ELECTRODE FOR DETERMINATION OF COPPER(II) BY POTENTIOMETRIC AND IMPEDIMETRIC METHODS

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MAZLOUM ARDAKANI M.; MANDEGARI A.A.; MASOUM S.; NAEIMI H.

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Journal: JOURNAL OF NANOSTRUCTURES Year:2012 | Volume:2 | Issue:3 Page(s): 333-343

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Title

MULTIWALL CARBON NANOTUBES MODIFIED CARBON PASTE ELECTRODE FOR DETERMINATION OF COPPER(II) BY POTENTIOMETRIC AND IMPEDIMETRIC METHODS

Author(s)

MAZLOUM ARDAKANI M. | MANDEGARI A.A. | MASOUM S. | NAEIMI H. | Issue Writer Certificate

Keywords

MULTIWALL CARBON NANOTUBEQ2

CARBON PASTE ELECTRODEQ2

ELECTROCHEMICAL IMPEDANCEQ2

RESPONSE SURFACE METHODOLOGYQ2

CENTRAL COMPOSITE DESIGNQ2

Abstract

A chemically modified CARBON PASTE ELECTRODE with MULTIWALL CARBON NANOTUBE (MWCNT) was prepared and used as a sensor for Cu2+ ion. The unique chemical and physical properties of CNT have paved the way to new and improved sensing devices. A central composite chemometrics design was applied for multivariate optimization of the effects of three significant parameters (Graphite powder (X1), MWCNT (X2) and Ionophre (X3)) influencing the response of the electrode. In the optimized conditions, the electrode exhibits a Nernstian slope of 30.1 mV/decade in a linear range between 1.0×10-6 to 1.0×10-1 M over a wide pH range (2.0-6.5). Importantly, the effect of the MWCNT on the performance of electrode was investigated by impedance technique, that showed the MWCNT helps the transduction of the signal in CARBON PASTE ELECTRODE and the charged transfer resistance (Rct) was reduced. The impedimetric results indicated that the linear concentrations range was 1.0×10-7 to 1.0×10-1 M and in comparison with potentiometry, the pH range increased to 2.0-7.5.

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APA: Copy

MAZLOUM ARDAKANI, M., MANDEGARI, A.A., MASOUM, S., & NAEIMI, H.. (2012). MULTIWALL CARBON NANOTUBES MODIFIED CARBON PASTE ELECTRODE FOR DETERMINATION OF COPPER(II) BY POTENTIOMETRIC AND IMPEDIMETRIC METHODS. JOURNAL OF NANOSTRUCTURES, 2(3), 333-343. SID. https://sid.ir/paper/210865/en

Vancouver: Copy

MAZLOUM ARDAKANI M., MANDEGARI A.A., MASOUM S., NAEIMI H.. MULTIWALL CARBON NANOTUBES MODIFIED CARBON PASTE ELECTRODE FOR DETERMINATION OF COPPER(II) BY POTENTIOMETRIC AND IMPEDIMETRIC METHODS. JOURNAL OF NANOSTRUCTURES[Internet]. 2012;2(3):333-343. Available from: https://sid.ir/paper/210865/en

IEEE: Copy

M. MAZLOUM ARDAKANI, A.A. MANDEGARI, S. MASOUM, and H. NAEIMI, “MULTIWALL CARBON NANOTUBES MODIFIED CARBON PASTE ELECTRODE FOR DETERMINATION OF COPPER(II) BY POTENTIOMETRIC AND IMPEDIMETRIC METHODS,” JOURNAL OF NANOSTRUCTURES, vol. 2, no. 3, pp. 333–343, 2012, [Online]. Available: https://sid.ir/paper/210865/en

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