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Graphene Oxide and Polyelectrolyte Composed One-Way Expressway for Guiding Electron Transfer of Integrated Artificial Photosynthesis
Ji, Xiaoyuan1,2; Kang, Yong1,2; Su, Zhiguo1; Wang, Ping1,3,4; Ma, Guanghui1; Zhang, Songping1
2018-03-01
发表期刊ACS SUSTAINABLE CHEMISTRY & ENGINEERING
ISSN2168-0485
卷号6期号:3页码:3060-3069
摘要A novel photocatalyst/biocatalyst integrated artificial photosynthesis system (APS) based on polyurethane hollow nano fibers doped with graphene oxide (GO) and poly(allylamine hydrochloride) (PAH) was developed and employed for selective methanol conversion from CO2. The biocatalysts, including formate, formaldehyde, and alcohol dehydrogenases, as well as NAD(+), were in situ coencapsulated inside the lumen of the GO-PAH-doped PU nanofibers (G-Fiber) by simply predissolving them in the core-phase solution for coaxial electrospinning, while the precise assembling of the photocatalyst parts involving visible light active photosensitizer (PS) and electron mediator (M) on the surface of the G-Fiber was realized by their pi-pi interactions with the GO doped in the shell of fibers. By using this highly integrated APS, about 10-times higher methanol yield was accomplished as compared with the solution-based system. The significantly enhanced reaction efficiency of the G-Fiber-based APS is considered predominately due to the electron transfer "one-way expressway" composed of the doped polyelectrolyte and GO in the G-Fiber; therefore, the electron-transfer distance along the PS-M-NAD(+) electron transport chain could be shortened and the speed could be accelerated. As a consequence, the electron back-flow between PS and M, as well as the recombination of the excited electron and the hole of PS were eliminated. The current work will represent a new benchmark for solar-energy driven conversion of CO2 to a wide range of fuels and chemicals in an environmentally benign manner.
关键词Integrated Artificial Photosynthesis Graphene Oxide Coaxial Electrospinning Pi-pi Interaction Methanol Formation
文章类型Article
WOS标题词Science & Technology ; Physical Sciences ; Technology
DOI10.1021/acssuschemeng.7b02902
收录类别SCI
语种英语
关键词[WOS]HOLLOW NANOFIBERS ; REDOX BIOCATALYSIS ; GRAPHITE OXIDE ; CARBON-DIOXIDE ; SOLAR-ENERGY ; REGENERATION ; SYSTEM ; REDUCTION ; METHANOL ; CO2
WOS研究方向Chemistry ; Science & Technology - Other Topics ; Engineering
WOS类目Chemistry, Multidisciplinary ; GREEN & SUSTAINABLE SCIENCE & TECHNOLOGY ; Engineering, Chemical
项目资助者National Basic Research Program of China (973 Program)(2013CB733604) ; National Natural Science Foundation of China(21676276 ; 91534126)
WOS记录号WOS:000427092900030
引用统计
文献类型期刊论文
条目标识符http://ir.ipe.ac.cn/handle/122111/24111
专题生化工程国家重点实验室
作者单位1.Chinese Acad Sci, Inst Proc Engn, State Key Lab Biochem Engn, 1 Bei Er Jie, Beijing 100190, Peoples R China
2.Univ Chinese Acad Sci, 19 Yuquan Rd, Beijing 100049, Peoples R China
3.Univ Minnesota, Dept Bioprod & Biosyst Engn, 1479 Gortner Ave, St Paul, MN 55108 USA
4.Univ Minnesota, Biotechnol Inst, 1479 Gortner Ave, St Paul, MN 55108 USA
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Ji, Xiaoyuan,Kang, Yong,Su, Zhiguo,et al. Graphene Oxide and Polyelectrolyte Composed One-Way Expressway for Guiding Electron Transfer of Integrated Artificial Photosynthesis[J]. ACS SUSTAINABLE CHEMISTRY & ENGINEERING,2018,6(3):3060-3069.
APA Ji, Xiaoyuan,Kang, Yong,Su, Zhiguo,Wang, Ping,Ma, Guanghui,&Zhang, Songping.(2018).Graphene Oxide and Polyelectrolyte Composed One-Way Expressway for Guiding Electron Transfer of Integrated Artificial Photosynthesis.ACS SUSTAINABLE CHEMISTRY & ENGINEERING,6(3),3060-3069.
MLA Ji, Xiaoyuan,et al."Graphene Oxide and Polyelectrolyte Composed One-Way Expressway for Guiding Electron Transfer of Integrated Artificial Photosynthesis".ACS SUSTAINABLE CHEMISTRY & ENGINEERING 6.3(2018):3060-3069.
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