그래핀 옥사이드와 이산화티타늄 조합을 이용한 이산화탄소의 광환원
기관명 | NDSL |
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저널명 | 한국물환경학회지 = Journal of Korean Society on Water Environment |
ISSN | 2289-0971,2289-098x |
ISBN |
저자(한글) | 이명규,장준원,박성직,박재우 |
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저자(영문) | |
소속기관 | |
소속기관(영문) | |
출판인 | |
간행물 번호 | |
발행연도 | 2016-01-01 |
초록 | In this study, we synthesized a combination of graphene oxide (GO) and titanium dioxide (TiO 2 ) and confirm that GO can be used for CO 2 photoreduction. TiO 2 exhibited highly efficient combination with other conventional electric charges generated by these paration phenomenon for suppression of hole-electron recombination. This improved the efficiency of CO 2 photoreduction. The synthetic form of GO-TiO 2 used in this study was agraphene sheet surrounded by TiO 2 powder. Efficiency and stability were enhanced by combination of GO and TiO 2 . In a CO 2 photoreduction experiment, the highest CO conversion rate was 0.652 mu;mol/g·h in GO10-TiO 2 (2.3-fold that of pure TiO 2 ) and the highest CH 4 production rate was 0.037 mu;mol/g·h in GO0.1-TiO 2 (2.4-fold that of pure TiO 2 ). GO enhances photocatalytic efficiency by functioning as a support and absorbent, and enabling charge separation. With increasing GO concentration, the CH 4 level decreases to~45% due to decreased transfer of electrons. In this study, TiO 2 together with GO yielded a different result than the normal doping effect and selective CO 2 photoreduction. |
원문URL | http://click.ndsl.kr/servlet/OpenAPIDetailView?keyValue=03553784&target=NART&cn=JAKO201615453228339 |
첨부파일 |
과학기술표준분류 | |
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ICT 기술분류 | |
DDC 분류 | |
주제어 (키워드) | CO lt,SUB gt,2 lt,/SUB gt,. Graphene oxide,Photocatalytic reduction,TiO lt,SUB gt,2 lt,/SUB gt |