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...
Thank you very much Adrian Borhan for your fruitful suggestions and providing these valuable references.
There are many papers reports like this, such as J. Am. Chem. Soc. 2012, 134, 7600−7603; J. Am. Chem. Soc. 2011, 133, 16414–16417; J. Am. Chem. Soc. 2012, 134, 6751−6761
see also “Synthesis, Characterization, and Photocatalytic Activity of Y‑Doped CeO2 Nanorods”, ACS Catalysis, 2014, 4, 577–584
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