DC Field | Value | Language |
---|---|---|
dc.contributor.advisor | Jeon, Seokwoo | - |
dc.contributor.advisor | 전석우 | - |
dc.contributor.author | Cho, Sumin | - |
dc.date.accessioned | 2019-09-03T02:46:32Z | - |
dc.date.available | 2019-09-03T02:46:32Z | - |
dc.date.issued | 2018 | - |
dc.identifier.uri | http://library.kaist.ac.kr/search/detail/view.do?bibCtrlNo=733923&flag=dissertation | en_US |
dc.identifier.uri | http://hdl.handle.net/10203/266504 | - |
dc.description | 학위논문(석사) - 한국과학기술원 : 신소재공학과, 2018.2,[iv, 51 p. :] | - |
dc.description.abstract | Titanium dioxide is biochemically, chemically stable and non-toxic, common material and has a band gap of about 3.2 eV. Due to these unique characteristics, titanium dioxide is used for various purposes such as energy harvesting and pollutant purification. Among them, titanium dioxide has attracted attention as an active photocatalyst in ultraviolet wavelength band. However, due to the relatively large band gap of 3.2 eV, there is a disadvantage that it is active only in ultraviolet rays having high energy, and studies are being carried out to increase the surface area for higher efficiency. Previous studies have been carried out to increase the efficiency by increasing the surface area through nanoparticle type or nanowire type structuring, or to add metal elements or add non-metal elements to reduce the band gap. In this thesis, in order to increase the efficiency of the photocatalyst, two strategies mentioned above are both used. By using proximity-field nanopatterning, we could make titanium dioxide with three-dimensionally aligned monolith. And by oxidation of titanium nitride, nitrogen-doping was done. Therefore, we could increasing the surface area and reducing the band gap, making photocatalyst with high efficiency that can absorb light in visible light region. | - |
dc.language | eng | - |
dc.publisher | 한국과학기술원 | - |
dc.subject | photocatalyst▼atitanium dioxide▼anitrogen doping▼athree dimensional ordered porous nanostructure▼aproximity field nanopatterning | - |
dc.subject | 광촉매▼a이산화티타늄▼a질소 첨가▼a3차원 다공성 정렬된 나노구조▼a근접장 나노패터닝 | - |
dc.title | 3D nanostructured N-doped $TiO_2$ with enhanced visible-light absorption for photocatalytic application | - |
dc.title.alternative | 가시광 영역에서 향상된 성능을 가지는 질소가 도핑된 3차원 나노구조 이산화 티타늄 광촉매 | - |
dc.type | Thesis(Master) | - |
dc.identifier.CNRN | 325007 | - |
dc.description.department | 한국과학기술원 :신소재공학과, | - |
dc.contributor.alternativeauthor | 조수민 | - |
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