CR(VI) REDUCTION APPARATUS BY IMMOBILIZED NANOTUBULAR TIO2 GROWN ON ROTATING TITANIUM MESHES

摘要

PURPOSE: A Cr(VI) reduction apparatus by immobilized nano-tubular TiO2 grown on rotating titanium meshes is provided to increase the reaction efficiency by fuxing nano-tubular photocatalyst to the mesh typed titanium and increasing the number of the photocatalyst to be rotated. CONSTITUTION: The Cr(VI) reduction apparatus by immobilized nano-tubular TiO2 grown on the rotating titanium meshes includes a mesh type photocatalyst(7) and a reactor(5). The cooling water circulating(3,4) and aqueous solution(8) are included. The mesh type photocatalyst oxidizes the surface of the metal titanium and forms the integrated titania nanotube. The reactor stores the aqueous solution in which Cr(VI) and hydrogen ion concentration are controlled. The reactor is made of quartz material which transmitting the light of the light source(1). The cooling water circulating part adjusts the reaction temperature of the reactor. The number of mesh type photocatalyst is 2~4. The speed of rotation of the stirrer shaft(6) is 20~70 rpm.