한국재료학회지 제27권 제5호 (p.289-293)

화학적 공정을 이용한 Y2Ti2O7 분말과 후막 제조 및 특성

Fabrication and Characterization of Y2Ti2O7 Powder and Thick Film by Chemical Processing
키워드 :
Y2Ti2O7,co-precipitation,thick film,methylene blue,photocatalytic,coating.

초록

Abstract Y2Ti2O7 nanoparticles (0.3 mol%) have been successfully synthesized by the co-precipitation process. The samples, adjusted to pH7 with ammonia solution as catalyst and calcined at 700~900 ℃, exhibit very fine particles with close to spherical shape and average size of 10-30 nm. It was possible to control the size of the synthesized Y2Ti2O7 particles by manipulating the conditions. The Y2Ti2O7 nanoparticles were coated on a glass substrate by a dipping coating process with inorganic binder. The Y2Ti2O7 solution coated on the glass substrate had excellent adhesion of 5B; pencil hardness test results indicated an excellent hardness of 6H. The thickness of the thick film was about 30 μm. Decomposition of MB on the Y2Ti2O7 thin film shows that the photocatalytic properties were excellent.