Fig. 11.2 (a) Cycle test for the solar-driven degradation of methyl orange (75 mL MO, 10 mg L 1)
under different reaction systems (1.2 mL H 2 O 2 (30 wt%); the initial pH was 3.5). (b) Solar-driven
degradation of MO on Fe 2 O 3 /GAs (1.2 mL H 2 O 2 (30 wt%); the initial pH was adjusted from 3.5 to
9.0 by the addition of 0.1 M HCl). (c) Cycle test for the solar-driven degradation of MO on different
catalysts with an initial pH of 7.0. (d) Absorption spectra of MO filter liquor, photo-degraded by
Fe 2 O 3 powders, and Fe 2 O 3 /GAs in the presence of 1,10-phenanthroline monohydrate (the initial
pH was 3.5). (e) Photo-Fenton reaction model of Fe 2 O 3 /GAs in a system containing dye pollutants
and H 2 O 2 . Reproduced from Ref. [22] by permission of The Royal Society of Chemistry
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11 Photo-Fenton Reaction
under different reaction systems (1.2 mL H 2 O 2 (30 wt%); the initial pH was 3.5). (b) Solar-driven
degradation of MO on Fe 2 O 3 /GAs (1.2 mL H 2 O 2 (30 wt%); the initial pH was adjusted from 3.5 to
9.0 by the addition of 0.1 M HCl). (c) Cycle test for the solar-driven degradation of MO on different
catalysts with an initial pH of 7.0. (d) Absorption spectra of MO filter liquor, photo-degraded by
Fe 2 O 3 powders, and Fe 2 O 3 /GAs in the presence of 1,10-phenanthroline monohydrate (the initial
pH was 3.5). (e) Photo-Fenton reaction model of Fe 2 O 3 /GAs in a system containing dye pollutants
and H 2 O 2 . Reproduced from Ref. [22] by permission of The Royal Society of Chemistry
266
11 Photo-Fenton Reaction