PROBLEM TO BE SOLVED: To solve the problem that a deodorization effect cannot be obtained on a spot unreachable by light, by performing operations in which water glass is kneaded with titanium dioxide, the kneaded product is calcined at 300-700°C, the calcined product is crushed and adjusted, and then apatite or radium is adsorbed onto the crushed product.SOLUTION: A photocatalyst compound is obtained by kneading water glass with titanium dioxide, calcining the kneaded product at 300-700°C, adjusting the calcined product into particles of 400 nano-micron to 20 micron, and allowing the crushed product to adsorb lactic acid bacterium obtained by lactic acid culture.SELECTED DRAWING: NoneCOPYRIGHT: (C)2016,JPO&INPIT【課題】 二酸化チタンに水ガラスを混錬し、前記混錬物を300~700℃で仮焼し、前記仮焼物を破砕調整し、該破砕物にアパタイトやラジウム吸着させることでは光の到達しない個所での脱臭効果が得られなかった。【解決手段】 二酸化チタンに水ガラスを混錬し、前記混錬物を300~700℃で仮焼し、前記仮焼物を400ノナミクロン~20ミクロンの粒子に調整し、該破砕物に乳酸菌を含浸させた乳酸菌を吸着させた光触媒化合物。【選択図】 なし