Journal
SUSTAINABLE ENERGY & FUELS
Volume 6, Issue 1, Pages 76-80Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/d1se01680f
Keywords
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Funding
- National Natural Science Foundation of China [22162001]
- Natural Science Foundation of Ningxia Province [2021AAC03194]
- Graduate Student Innovation Project of North Minzu University [YCX21138]
- Foundation of Academic Top-notch Talent Support Program of North Minzu University [2019BGBZ08]
- Leading Talents Program of Science and Technology Innovation in Ningxia Province [2020GKLRLX14]
- Innovation and Entrepreneurship Projects for Returnees of Ningxia Province
- Cooperative Scientific Research Project of Chunhui Plan of Ministry of Education of China [201900081]
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The efficient photocatalytic H-2 evolution of MAPbI(3)-PANI NW composite is significantly enhanced by the improved charge separation through the coupled PANI NWs.
Although the methylammonium lead iodide (MAPbI(3)) hybrid perovskite has shown great potential in photocatalytic H-2 evolution, its performance is significantly suppressed due to the insufficient charge separation. Herein, a strongly coupled 3D/1D composite photocatalyst of MAPbI(3) microcrystals with conductive polyaniline nanowires (PANI NWs) is developed for efficient photocatalytic H-2 evolution in MAPbI(3)-saturated HI aqueous solution under visible light irradiation. The most active MAPbI(3) (100 mg)-PANI NW (7 mg) composite exhibits a H-2 evolution rate of 38.8 mu mol h(-1), which is 29 times higher than that of pristine MAPbI(3). Spectroscopic and photoelectrochemical measurements reveal that the coupled PANI NWs can greatly improve the charge separation, thereby considerably enhancing the photocatalytic H-2 evolution of the composite photocatalyst.
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