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Iron(III) phthalocyanine modified titanium dioxide, Fe III Pc/TiO 2, photocatalyst was prepared. The photocatalyst reveals enhanced activity for the degradation of organic pollutants as compared to nonmodified TiO 2 . The photodegradation of p -aminobenzoic acid ( 1 ), p -nitrobenzoic acid ( 2 ), p -chlorophenoxyacetic acid ( 3 ), salicylic acid ( 4 ), and aniline ( 5 ) was found to be significantly enhanced in the presence of the Fe III Pc/TiO 2 photocatalyst as compared with the nonmodified TiO 2 photocatalyst. The enhanced activity of Fe III Pc/TiO 2 is attributed to the cooperative functions of the two components of the photocatalyst, Iron(III) phthalocyanine and the TiO 2 semiconductor in the generation of • OH radicals.
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Koodali et al. (1998) studied this question.
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