Highly efficient photoelectrocatalytic oxidation of arsenic(iii) with a polyoxometalate-thiacalix[4]arene-based metal–organic complex-modified bismuth vanadate photoanode

A new polyoxometalate-thiacalix[4]arene-based metal–organic photoelectrocatalyst is designed, and then applied to BiVO 4 surface modification for enhanced photoelectrocatalytic oxidation of arsenic( iii ) under simulated sunlight conditions.