| 초록 |
Nanosized titania has received much research attention because of its unique physico-chemical properties in the application of pigments, cosmetics, fine ceramics, photocatalysts for environmental purification, catalyst supports and dielectric materials. Doping of TiO2 with transition elements produces crystal defects and surface modifications, which can change its properties. Recently, sol-gel method is proved to be a novel technique for the preparation of nanocrystalline TiO2. Zr4+ doped nano titania was prepared by sol-gel method using titanium isopropoxide and zirconium nitrate as precursors. The materials were characterized by XRD, BET, FT-IR, and TEM techniques. |
