Characterization of Bismuth Composited to Carbon Nanotube-Coated Titanium Cathode in Electro-Fenton System

Figure 5

Electrocatalytic activity of cathode toward Fe(III)/Fe(II) redox reactions. (a) Bi/MWCNT/Ti-3 min. (b) Bi/MWCNT/Ti-5 min. (c) Bi/MWCNT/Ti-7 min. (d) MWCNT/Ti. (e) Ti. (f) Relationship between peak current and the square root of scan rate for each cathode.

(a)

(b)

(c)

(d)

(e)

(f)