| 학회 | 한국재료학회 |
| 학술대회 | 2018년 가을 (11/07 ~ 11/09, 여수 디오션리조트) |
| 권호 | 24권 2호 |
| 발표분야 | B. 나노화학/바이오 재료 분과 |
| 제목 | Human exhalation CO2 reduction for fuel synthesis |
| 초록 | Human exhalation carbon dioxide can be used for the production of useful chemicals through photo-electrochemical conversion. The S doped TiO2 nanotubes by Ti mesh anodization were prepared as for a methanol selective nano-structures. Such a S doping allows, from one side, increase density of charge carriers in the conduction band of the photocathode and, on the other side, improves reactive surface state of the whole system. The new synthesized S doped anodized TiO2 nanotube arrays were steadily prepared and well characterized using UV-vis, TEM, XPS, XRD and SEM. The reduction of CO2 to methanol in liquid phase was analyzed by UV–vis spectrophotometry (UV 2600 Shimadzu UV–vis spectrophotometer) at the wavelength (λmax) of 395 nm. S doped TiO2 nanotube arrays exhibited higher photocurrent densities and enhanced photoelectrochemical CO2 reduction properties as a result of improved separation of photogenerated electron/hole pairs, carrier density and the faster electron transport rate due to the proper energy level state for visible light absorption and reactive surface state created by S doping. Acknowledgement This research was supported by space Core Technology Development Program through the National Research Foundation of Korea(NRF) funded by the Ministry of Education Science and Technology(MEST) (2017M1A3A3A02016666) *Corresponding Author: (BeeLyong Yang), (Kumoh National Institute of Technology, Korea), ([email protected]) |
| 저자 | 김동윤, 김현, 양비룡 |
| 소속 | 금오공과대 |
| 키워드 | CO2 conversion; photocatalyst; TiO2 |
