Stable, highly active, reusable photocatalyst comprising phthalocyanine or tetraphenyl-porphyrin derivative on ion exchange resin carrier, useful in singlet oxygen oxidations e.g. in waste water treatment

摘要

In a new photocatalyst (A) comprising a photocatalytically active component immobilized on an ion exchange resin (preferably an anion exchange resin), the active component comprises a phthalocyanine and/or tetraphenyl-porphyrin derivative containing at least one anionic or cationic group. A new photocatalyst (A) comprises a photocatalytically active component immobilized on an ion exchange resin (preferably an anion exchange resin), where the active component comprises at least one of phthalocyanine derivatives of formula (I) and/or tetraphenyl-porphyrin derivatives of formula (II). M = a group IIA, IIB, IIIA, IVA, IVB or VIIIB metal; R = anionic or cationic group and a-d = 0-4, provided that at least one is other than 0. Independent claims are included for the following: (1) a photooxidation process using singlet oxygen, by contacting the material to be oxidized with oxygen in presence of (A) under irradation with light (preferably of wavelength 400-800 nm, especially visible light or sunlight), and (2) a method for photooxidation of biological material, by contacting the material with (A) in presence of oxygen under irradiation with visible light.