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1. (WO2019003079) SYSTÈME PHOTOCATALYTIQUE À BASE DE FE 2O3/CA2FE2O 5
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CLAIMS

Photocatalyst system of n- and p-type narrow band gap semiconductors with Z-scheme photoinduced charge carrier transfer mechanism that includes Fe203 and further contains Ca2Fe205.

Method for preparation of photocatalyst system according to claim 1, wherein amorphous iron containing nanoparticle precipitates sediments in a form of suspension are impregnated with Ca salt aqueous solution, dried at the temperature up to 100°C and additionally thermally treated at the temperature up to 1100°C for 1 hour.

Method according to claim 2, wherein drying is realized at about 60°C.

Method according to any of claims 2 to 3, wherein drying is realized for up to 1 hour.

Method according to any of claims 2 to 4, wherein thermal treatment is realized at about 820°C.

Method according to any of claims 2 to 5, wherein thermal treatment is realized for 20 minutes.