Table 7.
Calculated parameters of kinetic adsorption of RhB and AR dyes on Cu/Ni/rGO composite.
Without a Tungsten Lamp | With a Tungsten Lamp | ||||
---|---|---|---|---|---|
Kinetics Models | Constants Values | Dyes | Dyes | ||
RhB | AR | RhB | AR | ||
Pseudo 1st order | R2 | 0.46 | 0.91 | 0.27 | 0.94 |
qe | 0.01 | 0.024 | 0.013 | 0.006 | |
K1 (min−1) | 0.00009 | 0.0001 | 0.0003 | 0.0001 | |
Pseudo 2nd order | R2 | 0.996 | 0.998 | 0.993 | 0.999 |
qe | 0.07 | 0.26 | 0.12 | 0.57 | |
K2 (min−1) | 0.006 | 0.005 | 0.007 | 0.178 |