화학공학소재연구정보센터
학회 한국공업화학회
학술대회 2014년 가을 (11/12 ~ 11/14, 엑스코(대구))
권호 18권 2호
발표분야 에너지저장변환-포스터
제목 CuO-TiO2 heterostructured composite for CO2 reduction by solar light irradiation
초록  CuO-TiO2 hetero-structured composite was prepared by novel synthetic method and its photo-catalytic effect was evaluated with a methylene blue degradation and CO2 reduction by gas chromatogram (GC). Copper (II) oxide, a p-type semiconductor with narrow bandgap (Eg=1.2 eV), has received much attention in recent years as a good catalyst due to its high selectivity and activity in CO2 reduction. In particular, CuO is a good candidate in the field of CO2 reduction because of its valence band position that lies near the CO2/O2 potential. A strategy to enhance the CO2 reduction efficiency is to couple CuO with TiO2 to form p-n heterojunction that can enhance a charge separation efficiency of photo-generated charge carriers, stability against photocorrosion, and suitable band alignment for direct CO2 reduction.
저자 박승민, 인수일
소속 대구경북과학기술원(DGIST) 에너지시스템공학전공
키워드 Photocatalyst; CuO-TiO2; CO2 reduction
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