In this study, cerium oxide and multi-walled carbon nanotubes nanocomposite was incorporated into the carbon ceramic electrode (CeO2-MWCNTs/CCE) as a renewable electrode for the electrocatalytic purposes. To demonstrate capability of the fabricated electrode, determination of Tamoxifen as an important anticancer drug with differential pulse voltammetry technique was evaluated. Linear range, limit of detection and sensitivity of the developed sensor were found to be 0.2-40 nM, 0.132 nM and 1.478 µA nM-1 cm-2, respectively. Ease of production, low cost and high electron transfer rate of CeO2-MWCNTs/CCE promise it as a novel electro-analytical tool for determination of important species in real samples.
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XRD pattern of CeO2-MWCNT/CCE.
(A) CVs of bare-CCE in 0.01 M [Fe(CN)6]3− at 0.1 M acetate buffer solution in different scan rates of 10, 25, 50, 75, 100, 150, 200, 250, 300, 400 and 500 mV s-1; (B) Change of peak currents vs. square root of scan rate.
(A) CVs of CeO2-MWCNT/CCE in 0.01 M [Fe(CN)6]3− at 0.1 M acetate buffer solution in different scan rates of 10, 25, 50, 75, 100, 150, 200, 250, 300, 400 and 500 mV s-1; (B) Change of peak currents vs. square root of scan rate.
(A) CVs of CeO2-MWCNT/CCE in the presence of TAM with different concentrations of 4.5, 5, 5.5, 6, 6.5, 7, 7.5 and 8 µM. (B) The corresponding calibration curve.
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Posted 23 Mar, 2021
Posted 23 Mar, 2021
In this study, cerium oxide and multi-walled carbon nanotubes nanocomposite was incorporated into the carbon ceramic electrode (CeO2-MWCNTs/CCE) as a renewable electrode for the electrocatalytic purposes. To demonstrate capability of the fabricated electrode, determination of Tamoxifen as an important anticancer drug with differential pulse voltammetry technique was evaluated. Linear range, limit of detection and sensitivity of the developed sensor were found to be 0.2-40 nM, 0.132 nM and 1.478 µA nM-1 cm-2, respectively. Ease of production, low cost and high electron transfer rate of CeO2-MWCNTs/CCE promise it as a novel electro-analytical tool for determination of important species in real samples.
Figure 1
Figure 2
Figure 3
Figure 4
Figure 5
Figure 6
Figure 7
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