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학술발표회초록보기

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제114회 대한화학회 학술발표회, 총회 및 기기전시회 안내 Synthesis of TiO2 with different pore and particle size for study of diffusion-controlled photocatalytic activity

등록일
2014년 8월 28일 16시 29분 49초
접수번호
1246
발표코드
INOR.P-247 이곳을 클릭하시면 발표코드에 대한 설명을 보실 수 있습니다.
발표시간
10월 15일 (수요일) 16:00~19:00
발표형식
포스터
발표분야
무기화학
저자 및
공동저자
박우정, 박찬호1, 유원철*
한양대학교 응용화학과, Korea
1한양대학교 응용화학, Korea
TiO2 is a semiconductor that shows photocatalytic activity. Hence, it has been lots of investigations for increase of photocatalytic efficiency of TiO2, mainly influenced by crystallinity, portion of specific crystalline plane expose and surface area. However, a diffusion issue in liquid reaction in terms of sufficient interaction between a reactant and surface of a photocatalyst has less been studied. Therefore, a rationally designed photocatalytic material that can be controlled with pore and particle size, key factors for determining the diffusivity of reactant, could provide an insight for diffusion-driven photocatalytic reaction. Here, we has synthesized three-dimentionally ordered mesopore (3DOm) TiO2 for realizing the aforementioned issue. The fcc packed silica spheres (10-40 nm) were used as a template for preparing 3DOm TiO2. The size of mesopore can be controlled by choosing the size of silica particle and the size of 3DOm TiO2 can be tuned by controlling reaction conditions. TiO2 photocatalysts with mesopore sizes of 10-40 nm and particle sizes with 0.3-1 μm have been prepared to study the diffusion controlled photocatalytic decomposition of Methylene Blue.

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