http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
- 中文 을 입력하시려면 zhongwen을 입력하시고 space를누르시면됩니다.
- 北京 을 입력하시려면 beijing을 입력하시고 space를 누르시면 됩니다.
RISS 인기검색어
- 검색키워드
- 저자 : Zhu Xueteng (검색결과 1 건)
- 무료
- 기관 내 무료
- 유료
-
Oxygen vacancy engineering of TiO2-x nanostructures for photocatalytic CO2 reduction
Deng Hexia,Zhu Xueteng,Chen Zhangjing,Zhao kai,Cheng Gang 한국탄소학회 2022 Carbon Letters Vol.32 No.7
The conversion of CO2 into solar fuels by photocatalysis is a promising way to deal with the energy crisis and the greenhouse effect. The introduction of oxygen vacancy into semiconductor has been proved to be an effective strategy for enhancing CO2 photoreduction performance. Herein, TiO2-x nanostructures have been prepared by a simple solvothermal method and engineered by the reaction time. With the prolonging of reaction time, the oxygen vacancy signal gradually increases while the band gap becomes narrow for the as-synthesized TiO2-x nanostructures. The results show that the TiO2-x-6 h, TiO2-x-24 h, and TiO2-x-48 h samples have the main product of CH4 (more) and CO (less) for CO2 photoreduction. Among the three oxygen vacancy photocatalysts, the TiO2-x-24 h sample shows the highest CH4 generation rate of 41.8 μmol g−1 h−1. On the basis of photo/electrochemical measurements, the TiO2-x-24 h sample exhibits efficient electron–hole separation and charge transfer capabilities, thus allows much more electrons to participate in the reaction and finally promotes the photocatalytic CO2 reduction reaction. It further confirms that the optimization of oxygen vacancy concentration could facilitate the photoinduced charge separation and accordingly improve photocatalytic CO2 conversion.
연관 검색어 추천
이 검색어로 많이 본 자료
활용도 높은 자료
