DC Field | Value | Language |
---|---|---|
dc.contributor.advisor | Jung, Hee-Tae | - |
dc.contributor.advisor | 정희태 | - |
dc.contributor.author | Bae, Sangjin | - |
dc.contributor.author | 배상진 | - |
dc.date.accessioned | 2017-03-29T02:34:38Z | - |
dc.date.available | 2017-03-29T02:34:38Z | - |
dc.date.issued | 2016 | - |
dc.identifier.uri | http://library.kaist.ac.kr/search/detail/view.do?bibCtrlNo=649478&flag=dissertation | en_US |
dc.identifier.uri | http://hdl.handle.net/10203/221531 | - |
dc.description | 학위논문(석사) - 한국과학기술원 : 생명화학공학과, 2016.2 ,[iv, 30 p. :] | - |
dc.description.abstract | Graphitic carbon nitride, $g-C_3N_4$, is a promising organic photocatalyst for $CO_2$ reduction because of its visible light responsive and thermo-chemically stable properties. However, its high recombination rate and ordinary $CO_2$ adsorption ability have restricted its photocatalytic activity. In this paper, we have fabricated a dual photocatalyst system composed of 3D conductive carbon(carbon foam), derived from a commercial melamine sponge, and $g-C_3N_4$ with a facile preparation method to enhance the $CO_2$ photo-reduction activity. Carbon foam not only functions as a backbone for $g-C_3N_4$ to grow on but also collects photo-induced electrons from $g-C_3N_4$ and provides $CO_2$ adsorption sites. As a result, our system exhibited the CO production rate of 0.853 $\mu mol/g \cdot hr$ resulting from $CO_2$ photo-reduction under visible light irradiation. This rate is 3.72 times and 4.47 times higher than those from pure $g-C_3N_4$and pure carbon foam, respectively. This enhanced activity is ascribed to the repression of excited electrons-holes recombination and increased $CO_2$ adsorption capacity by amine-containing carbon foam. | - |
dc.language | eng | - |
dc.publisher | 한국과학기술원 | - |
dc.subject | photocatalytic $CO_2$ reduction | - |
dc.subject | graphitic carbon nitride | - |
dc.subject | carbon foam | - |
dc.subject | 3D heterosystem | - |
dc.subject | visible-light responsive photocatalyst | - |
dc.subject | 이산화탄소 광전환 | - |
dc.subject | 그래파이틱 질화탄소 | - |
dc.subject | 다공성 탄소 | - |
dc.subject | 3차원 복합체 | - |
dc.subject | 가시광선 반응성 광촉매 | - |
dc.title | Highly efficient photocatalytic $CO_2$ reduction using 3D heterosystem of carbon foam and graphitic carbon nitride | - |
dc.title.alternative | 질화탄소와 다공성 탄소의 3D 복합체를 이용한 효율적인 CO2 광전환에 관한 연구 | - |
dc.type | Thesis(Master) | - |
dc.identifier.CNRN | 325007 | - |
dc.description.department | 한국과학기술원 :생명화학공학과, | - |
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.