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Silver-Doped Titania Modified Carbon Electrode for Electrochemical Studies of Furantril

  • Shikandar D
  • Shetti N
  • Kulkarni R
  • et al.
ECS Journal of Solid State Science and Technology (2018) 7(7) Q3215-Q3220
DOI: 10.1149/2.0321807jss
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Abstract

An electrochemical method for the determination of an antrallinic acid derivative based on nanoparticles modified electrode was studied through cyclic and differential pulse voltammetry. Modification of electrode with silver-doped titania nanoparticles enhanced the peak current for the electro-oxidation of Furantril. The silver-doped titania nanoparticles were prepared by simple wet chemical methods and characterized by scanning electron microscopy (SEM), transmission electron microscopy (TEM), energy dispersive X-ray spectroscopy (EDX), X-ray diffractometer (XRD). Silver-doped TiO2voltamogramms suggested that pH 5.0 was suitable for electrochemical investigation of furantril. Rate constant, diffusion coefficient, electrode process and number of electrons involved were calculated. Based on these investigations a feasible mechanism for electrode reaction was presented. Limit of detection and quantification were found to be 1.98 nM and 6.6 nM respectively.

Figures

  • Figure 1. Characterization of STPN; A) XRD; B) SEM image; C) EDX; D) TEM.
  • Figure 2. Kubelka munk plot for STPN.
  • Figure 3. Cyclic voltammogram of 0.1 mM furantril in phosphate buffer solution, pH 5.0 (I = 0.2 M) at scan rate 50 mVs−1; A) Voltammogram recorded at; a) Ag-TiO2 / CPE (Blank); b) CPE (for 0.1 mM FUR); c) TiO2 / CPE (for 0.1 mM FUR); d) Ag-TiO2 / CPE (for 0.1 mM FUR) B) Inserted plot: Comparision of peak current for different electrodes.
  • Figure 4. Experimental setup of working.
  • Figure 5. Effect of variation of pH on anodic peak current for oxidation of furantril at pH (a) 3.0 (b) 4.0 (c) 5.0 (d) 6.0 (e) 7.0 (f) 8.0 (g) 9.2 (h) 10.4 pH.
  • Figure 6. A) Cyclic voltammogram recorded for the oxidation of furantril at different scan rates (pH = 5.0); (a) 10; (b) 50; (c) 150; (d) 200; (e) 250; (f) 400; (g) 550; (h) 700; (i) 900 mVs−1. B) Plot for peak current versus scan rate; C) Plot for logarithm of peak current versus logarithm of scan rate; D) plot for peak potential versus logarithm of scan rate.
  • Figure 7. A) Differential pulse voltamogramms recorded for variation of concentration of furantril a) blank; b) 0.1; c) 0.2; d) 0.3; e) 0.4; f) 0.5; g) 0.6; h) 0.7; i) 10 and j) 1.2 μM. B) Inserted figure: Plot for peak current for oxidation of furantril versus concentration of furantril.
  • Table I. Comparison of LOD with past reported methods.

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CITATION STYLE

APA

Shikandar, D. B., Shetti, N. P., Kulkarni, R. M., & Kulkarni, S. D. (2018). Silver-Doped Titania Modified Carbon Electrode for Electrochemical Studies of Furantril. ECS Journal of Solid State Science and Technology, 7(7), Q3215–Q3220. https://doi.org/10.1149/2.0321807jss

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