Experiments on 0.5 wt.% Fe–TiO2 at optimum catalyst dose and pH = 7, for various initial NB concentrations between (0.37–8.45) 104 M were performed, in order to determine the kr and Kads. The pseudo-first order kinetics of NB degradation at various initial pollutant concentrations are presented in Fig. 7.
Eq. (1) was linearized by its reciprocal expression: