The synergistic effects of atrazine degradation with H2O2 photocatalyzed by TiO2-Fe3+ under visible irradiation
TiO2-Fe3+可见光催化H2O2降解阿特拉津的协同效应

The synergistic effects of atrazine degradation with H2O2 photocatalyzed by TiO2-Fe3+ were studied. The results indicated that ·OH radicals could be constantly produced by rutile TiO2 under visible irradiation with H2O2 addition, and the generation of ·OH radicals increased sharply with the synergistic addition of Fe3+. Atrazine could be degradated by TiO2 visible-light photocatalysis with H2O2 addition. Rutile TiO2 exhibited a better photocatalytic activity than anatase and mixed crystal TiO2(TiO2 P25), and its degradation ratio could be 40% after 60 minutes reaction. Synergistic degradation of atrazine with H2O2 photocatalyzed by TiO2-Fe3+ was evidently fast with complete degradation after 5 minutes reaction, and rutile TiO2 showed more evident synergistic effects.