화학공학소재연구정보센터
학회 한국공업화학회
학술대회 2017년 봄 (05/10 ~ 05/12, 광주 김대중컨벤센센터(Kimdaejung Convention Center))
권호 21권 1호
발표분야 디스플레이
제목 Simple preparation of carbon/TiO2 core/shell nanoparticles showing visible light photocatalytic activity
초록 Anatase titanium dioxide nanoparticles (TiO2 NPs) enabling photo-degradation of environmental pollutants, encourage human being to utilized TiO2 NPs for the purification of water with low cost. However, only ultraviolet (UV) can operate the photo-degradation of organic dyes because TiO2 NPs with band-gap of 3.2 eV can absorb only UV that is less than 5% of the total solar irradiation. TiO2/carbon core/shell NPs (C-TiO2), a new photocatalyst was prepared by the carbonization of dopamine-grafted TiO2 NPs that are simply formed through ligand-to-metal charge transfer (LMCT) between dopamine and TiO2 NPs. C-TiO2 presented enhanced photocatalytic degradation of rhodamine B under both UV and visible light due to the decreased optical band gap energy of C-TiO2 compared with TiO2. 2017년 한국교통대학교 지원을 받아 수행하였음.
저자 채아리, 조성호, 최유진, 인인식
소속 한국교통대
키워드 Titanium dioxide; Dopamine; Ligand-to-metal charge transfer; photocatalyst
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