| abstract |
An object of the present invention is to provide a novel method for producing an H-type layered perovskite photocatalyst having various cations at a B site of a perovskite layer. SOLUTION: The production method of the present invention uses a general formula: Bi 2 A By acid treatment of Auribiriusu phase represented by n-1 B n O 3n + 3, bismuth oxide layer selectively is substituted with a proton with eluted, characterized in that to obtain a H-type layered perovskite compound. A in the above general formula means an atom located at the A site of the perovskite layer, and Sr, Ca, La, Ba, Pb, Bi, N at least one or more atoms selected from a, K, and the like, and when A is 2 or more, the selected atoms may be the same or different; and B is B in the perovskite layer. Means the atom located at the site, Fe, Mn, Ti, Nb, Ta, W, Mo, Cr, Ga, Zr At least one or more atoms selected from n is an integer of 1 to 8. |