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대한화학회 제124회 학술발표회 및 총회 Understanding reaction kinetics by tailoring metal co-catalysts of BiVO4 photocatalyst

등록일
2019년 8월 22일 14시 55분 21초
접수번호
1234
발표코드
ELEC.P-424 이곳을 클릭하시면 발표코드에 대한 설명을 보실 수 있습니다.
발표시간
10월 17일 (목요일) 11:00~12:30
발표형식
포스터
발표분야
Electrochemistry
저자 및
공동저자
Hye Rin Choe, Ki Min Nam*
Department of Chemistry, Pusan National University, Korea
In this study, the reaction mechanisms of metal-semiconductor composites used as photocatalysts were demonstrated by coupling the preparation of BiVO4 with a consecutive photodeposition of metal nanoparticles. The photocatalytic activity of metal-BiVO4 (M-BiVO4, where M = Pt, Au, Ag) composites were evaluated through dye decomposition under UV-visible irradiation. The photocatalytic efficiency was significantly enhanced after Pt deposition compared to other M-BiVO4 com-posites. The size or shape of BiVO4 was not the main factor for efficiency of Pt-BiVO4. However, deposited Pt co-catalyst was essential for the photocatalytic decomposition of dye on the BiVO4 surface. Radical scavengers were employed to elu-cidate the reaction mechanism during photocatalytic reaction using Pt-BiVO4 composite. This study provides details on the reaction mechanism of the photocatalytic reaction on a Pt at the BiVO4 surface under solar irradiation.

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