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Ceramic beads were fabricated by using mine tailing. Ceramic bead supports with porosity of 83% and pore size of about 160 μm were prepared by gel casting and method of pelletizing in oil using mine tailing as a starting material. Mesoporous silica SBA-15 having pores of 4 to 7 nm was synthesized by self-assembling method using precursor of silicate ions extracted from mine tailing. By surface coating of the synthesized SBA-15 on porous ceramic beads, bimodal porous materials with pore structures of 4~7 nm and 160 μm were prepared. Porous ceramic beads having a specific surface area of about 0.7 m/g increased up to 52 m/g after SBA-15 surface coating and the cross section of coated pores was confirmed through scanning electron microscope (SEM). As the specific surface area and surface hydroxyl group density of SBA-15 increased, the specific surface area of the coated porous ceramic beads increased.

Preparation of Ceramic Bead with Nano Pore Structure by Using Gold Mine Tailing, Haenam