Research Article
Metal-Organic Framework MIL-53(Fe): Synthesis, Electrochemical Characterization, and Application in Development of a Novel and Sensitive Electrochemical Sensor for Detection of Cadmium Ions in Aqueous Solutions
Figure 4
(a) Cyclic voltammograms of the GCE/MIL-53(Fe) electrode in 0.1 M KCl solution containing 5 mM Fe(CN)63–/4– at different scan rates of 25, 30, 35, 40, 45, 50, 55, 60, 65, 70, and 75 mV s–1; (b) the relationships between the currents of anodic and cathodic peaks and the square root of the scan rate () and their corresponding linear fit lines: , the red line with the triangle symbols, and , the blue line with the circle symbols; (c) the relationships between the potentials of anodic and cathodic peaks and and their corresponding linear fit lines: , the green line with the square symbols, and , the orange line with the star symbols.
| (a) |
| (b) |
| (c) |