화학공학소재연구정보센터
학회 한국공업화학회
학술대회 2016년 봄 (05/02 ~ 05/04, 여수 엑스포 컨벤션)
권호 20권 1호
발표분야 (환경에너지)차세대 환경&에너지 기술
제목 Graphenodization: Facile Synthesis of TiO2 Nanotube Arrays Covered with Reduced Graphene Oxide for CO2 reduction
초록 One-dimensional TiO2 nanotubes arrays(TNT) are the subject of great current interest among the photocatalysis research community, however the relatively large band gap that provides TiO2 with its excellent charge corrosion stability severely limits its absorption of solar spectrum energy. With the aim of replacing expensive noble metal co-catalysts, here in we report a noble metal-free novel nanostructured photocatalytic material fabricated using a facile synthesis approach, comprising a one-dimensional array of TNT covered with a reduced grapheneoxide-TiO2 nanoparticles (rGO-TiO2NP) composite. The novel nanostructure exhibits significantly improved photocurrent density and photochemical activity via conversion of CO2 into methane under simulated solar light irradiation. The improved performance appears due to the combined effect of enhanced light absorption and effective charge separation promoted by the rGO.
저자 인수일
소속 DGIST
키워드 graphene; CO2 reduction; global warming; renewable energy; solar fuel
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