The cupron solution (0.1%, wt. %) was prepared with deionized water and the desired pH 8.5 was adjusted by 0.1 mol L−1 NaOH or HAc. Milli-Q purified water was used throughout the experiments.
The cupron solution (0.1%, wt. %)was prepared with deionized water and the desired pH 8.5 wasadjusted by 0.1 mol L−1 NaOH or HAc. Milli-Q purified water wasused throughout the experiments.