CATALYST SAND AND METHOD OF MANUFACTURING THE SAME

PROBLEM TO BE SOLVED: To provide a hydrophilicity sand like catalyst in which cost is low, handling is convenient, and catalytic proficiency which a transition metal has can be effectively used.SOLUTION: A transition metal belonging to an element table fourth period having a catalytic function, especially an oxide of iron or titanium is supported by a surface of an inexpensive sand by a form in which catalytic proficiency can be effectively exerted, and thereby handling is made convenient and inexpensive providing can be performed. A surface of a catalyst sand becomes hydrophilicity and can effectively obtain catalytic proficiency by supporting the catalyst sand on a surface of sand, in a form provided by a kind of a metal, for instance, in a state in which iron or titanium is dispersed in an aqueous solution as the amorphous iron hydroxide colloid or as an anatase titanium oxide, respectively.