Hydroxide Sludge/Hydrochar-Fe Composite Catalysts for Photo-Fenton Degradation of Dyes

Figure 7

Photo-Fentondegradation of MB in different H₂O₂ concentrations (a), catalyst dosages (b), and initial pH conditions (c). Reaction conditions: [MB] = 50 mg/L, [catalyst] = 2.5 g/L, [H₂O₂] = 14.68, and natural pH, except for tested condition.

(a)

(b)

(c)