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  • 09월 10일 16시 이후 : 초록수정 불가능, 일정확인 및 검색만 가능

제124회 대한화학회 학술발표회, 총회 및 기기전시회 안내 Anatase-rutile synergistic effect in TiO2 photocatalysis: an assessment of the water-oxidation and pollutant-degradation mechanism

등록일
2019년 9월 9일 14시 30분 32초
접수번호
1994
발표코드
ENVR.P-462 이곳을 클릭하시면 발표코드에 대한 설명을 보실 수 있습니다.
발표시간
10월 17일 (목요일) 11:00~12:30
발표형식
포스터
발표분야
Environmental Energy
저자 및
공동저자
Sojung Park, Wooyul Kim1,*
Department of Chemical and Biological Engineering, College of Engineering, Sookmyung Women's University, Korea
1Department of Chemical and Biological Engineering, Sookmyung Women's University, Korea
Numerous studies have investigated photocatalytic properties of anatase, rutile, and TiO2 (anatase and rutile) composites; however, the detail mechanistic investigations are limited due to the short lifetime of the photogene rated charge carriers. Herein, In order to reveal the synergistic effect between anatase and rutile phase of TiO2, the photo-(electrochemical) activity of slurry type and electrode type of two main crystalline were systematically investigated. In particular, the charge transfer process between polymorphs were directly observed using time-resolved diffuse reflectance spectroscopy method. In slurry type, no photocatalytic synergic effect between anatase and rutile was observed while the photo-electrochemical synergic effect was clearly represented in electrode type system, which is consisted with the charge transfer dynamic data from laser flash photolysis. In addition, using FT-IR spectroscopy technique, the recent result of mechanism will be discussed.

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