Journal
ACS APPLIED MATERIALS & INTERFACES
Volume 10, Issue 48, Pages 41415-41421Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acsami.8b16013
Keywords
visible light; photocatalysis; hydrogen evolution; covalent triazine-based frameworks; phosphorus doping
Funding
- National Natural Science Foundation of China [51672047, 21403238, 51672048]
- Program for New Century Excellent Talents in University of Fujian Province
- Independent Research Project of State Key Laboratory of Photocatalysis on Energy and Environment [2014C03]
- Fuzhou University Testing Fund of Precious Apparatus [2018T001]
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Seeking efficient visible-light-driven photocatalysts for water splitting to produce H-2 has attracted much attention. Chemical doping is an effective strategy to enhance photocatalytic performance. Herein, we reported phosphorus-doped covalent triazine-based frameworks (CTFs) for photocatalytic H-2 evolution. Phosphorus-doped CTFs were fabricated by a facile thermal treatment using easily available red phosphorus as the external phosphorus species. The introduction of phosphorus atoms into the frameworks modified the optical and electronic property of CTFs, thus promoting the generation, separation, and migration of photoinduced electron-hole pairs. Consequently, the photocatalytic H-2-production efficiency of phosphorus-doped CTFs was greatly improved, which was 4.5, 3.9, and 1.8 times as high as that of undoped CTFs and phosphorus-doped g-C3N4 calcined from melamine and urea, respectively.
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