Electrochemical degradation of methylene blue accompanied with the reduction of CO2 by using carbon nanotubes grown on carbon fiber electrodes

Table 1 Rate constants of the pseudo-first-order equation obtained under various electrochemical oxidation conditions

Applied Current, mA	Degradation efficiency, %	k_obs, h^− 1	Correlation coefficient (r²)
Electrolyte of 0.1 M KHCO₃ (for both cathodic and anodic cells), initial pH of 8.19
10	56	0.29	0.9907
50	72	0.51	0.9688
100	59	0.36	0.9455
Electrolyte of 0.1 M H₂SO₄ (for both cathodic and anodic cells), initial pH of 1.83
10	66	0.26	0.9876
50	73	0.46	0.9960
100	50	0.39	0.9866

ISSN: 2468-2039