I have prepared a ternary metal oxide, Bi2V1-xMnxO5.5-x as a photocatalyst and investigated the variation of its photocatalytic efficiency for degradation of azo dye as a function of dopant concentration (x). I found the highest photocatalytic efficiency at a value of x. This value is approximately the same as that x value showing maximum oxygen vacancy concentration in the perovskite- like slabs. The same results was also found in my previous work on the same photocatalyst with different metal dopant, Bi2V1-xMnxO5.5-x

https://www.researchgate.net/publication/259159149_Photodegradation_of_4-SPPN_dye_catalyzed_by_Ni(II)-substituted_Bi2VO5.5_system_under_visible_light_irradiation_Influence_of_phase_stability_and_perovskite_vanadateoxygen_vacancies_of_photocatalyst

Has anyone ever seen a research paper showing correlation between crystal vacancy concentration and photocatalytic efficiency of a photocatalyst?

Article Photodegradation of 4-SPPN dye catalyzed by Ni(II)-substitut...

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