화학공학소재연구정보센터
학회 한국화학공학회
학술대회 2009년 봄 (04/23 ~ 04/24, 광주 김대중컨벤션센터)
권호 15권 1호, p.519
발표분야 에너지
제목 Photocatalytic water splitting by using (SrxLa1-x)TiO3-SiC system under visible light irradiation
초록 Energy consumption covers the depletion of fossil fuels and serious environmental problems accompanying their combustion. Hence, a new form of energy that is clean, renewable, cheap, and a viable alternative to fossil fuels is needed. Hydrogen is considered as an ideal fuel for the future. Photocatalytic water splitting is a promising technique to produce hydrogen from water by using photocatalyst.
Silicon carbide (SiC) is not a common photocatalyst for water splitting, eventhough it shows photocatalytic activity which was reported in previous researches. In this research, (SrxLa1-x)TiO3 will be coupled with SiC to increase the photocatalytic activity in splitting the water. Nanosize particles of SiC were mixed with precursors of (SrxLa1-x)TiO3, then spray pyrolyzed at 900°C with 4L/min air flow as gas carrier. SiC is expected to slowing down the electron hole recombination. The photocatalytic activity measurement was conducted under visible light irradiation (>400 nm). XRD, Raman and SEM were conducted to reveal the morphology and elements contained by photocatalyst particles.
저자 노니, 박승빈
소속 KAIST 생명화학공학과
키워드 photocatalytic water splitting; SiC
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