| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a building material which has excellent photocatalytic activity and ultra-hydrophilicity even for a low light intensity, with high adhesion to a base material and less aged deterioration. <P>SOLUTION: A building material contains a NASICON-type photocatalytic crystal at least in the surface. A method for manufacturing the building material includes a coating step for applying a coating material containing the NASICON-type crystal to the surface of a base material. The NASICON-type crystal is preferably represented by a general formula: A<SB POS="POST">m</SB>B<SB POS="POST">2</SB>(XO<SB POS="POST">4</SB>)<SB POS="POST">3</SB>, wherein the first element A is at least one selected from the group consisting of Li, Na, K, Cu, Ag, Mg, Ca, Sr, and Ba; the second element B is at least one selected from the group consisting of Zn, Al, Fe, Ti, Sn, Zr, Ge, Hf, V, Nb, and Ta; the third element X is at least one selected from the group consisting of Si, P, S, Mo, and W; and the factor m is in the range from 0 to 4. <P>COPYRIGHT: (C)2013,JPO&INPIT |
