Table 3.

Pseudo-first and second-order kinetic study for the degradation of VS

Samples	KOH				NaOH
	Pseudo 1st order		2nd order		Pseudo 1st order		2nd order
	Rate constant (k 1)	R 2	Rate constant (k 2)	R 2	Rate constant (k 1)	R 2	Rate constant (k 2)	R 2
IWS	0.0242	0.9713	0.0021	0.9909	0.237	0.9685	0.002	0.9887
FW	0.0391	0.7664	0.0035	0.9095	0.383	0.7808	0.0034	0.9213
IWS:FW (1:1)	0.0382	0.6647	0.0032	0.8324	0.0378	0.682	0.0031	0.8463
IWS:FW (1:2)	0.0435	0.7712	0.0042	0.9194	0.0428	0.7698	0.0041	0.9158
IWS:FW (1:3)	0.0403	0.7170	0.0035	0.8772	0.0386	0.7157	0.0033	0.8745