Abstract
Various bismuthates including Bi5+ was examined for photocatalytic property by using decomposition of methylene blue. The methylene blue molecule was decomposed under existence of LiBiO3, AgBiO3, BaBi2O6, SrBi2O6 and NaBiO3. Changes of methylene blue concentration confirmed that NaBiO3 and LiBiO3 have relatively large photocatalytic activity for methylene blue decomposition.