Preparation of Ti/SnO₂-Sb/Rare Earth Electrodes Containing Different Contents of Ni Intermediate Layer for Efficient Electrochemical Decolorization of Rhodamine B

Table 4

Kinetic parameters of 20 mg·L⁻¹ RhB in electrochemical processes by Ti/SnO₂-Sb-Ni/Ce electrodes modified with various Ni contents.

	Ni (0%)/Ce	Ni (1%)/Ce	Ni (2%)/Ce	Ni (3.5%)/Ce	Ni (5%)/Ce
Rate constants (k) (min^−1)	0.0476	0.0817	0.109	0.0409	0.0364
R^2	0.9769	0.9989	0.999	0.9701	0.9702