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

Table 5

Kinetic parameters of 40 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)	0.0136	0.0265	0.0498	0.0121	0.0116
R^2	0.9863	0.99	0.9931	0.9705	0.9711