Fig. 8. (a) Zeta potentials of flower-like Cu-TCPP suspensions and (b) removal rates of RhB at various values of pH. (c) Effect of concentration of H2O2 on the degradation of RhB; conditions: RhB, 10 ppm; Cu-TCPP, 0.1 g L−1; initial pH 11. (d) UV-vis absorption spectra of RhB recorded at various times during the photocatalytic process. (e) Photocatalytic degradation curve. (f) Plots of ln(C0/C) with respect to time, providing apparent reaction rate constants (k).
