FE2O3/CA2FE2O5 photocatalyst system
Tālis Juhna, Andris Šutka

Invention relates to water remediation technology and is expected to be used for photocatalysis in visible light, for example, in water purification reactors. The invention is narrow n- and p-type semiconductor system with high oxidation-reduction potential and low photo induced charge carrier recombination, which is provided by Z-scheme charge transfer mechanism. System contains photocatalysts from earth abundant chemical elements. For synthesis of proposed photocatalyst system water based industrializable methods are used. Photocatalyst system Fe2O3/Ca2Fe2O5 can be used for visible light photocatalysis: (i) water purification; (ii) disinfection; (iii) air purification; (iv) sterile surface; (v) water cleavage; (vi) synthesis of chemical compounds from ambient CO2.



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