Journal
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY
Volume 396, Issue -, Pages -Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.jphotochem.2020.112517
Keywords
Near-Infrared-Driven; Water splitting; H(2)evolution; g-C3N4; Protoporphyrin
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Funding
- Startup Research Fund of Dongguan University of Technology [KCYKYQD2017015]
- National Natural Science Foundation of China [51671136, 51502172]
- International Technological Collaboration Project of Shanghai [17520710300]
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Although many photocatalysts can work under ultraviolet-visible (UV-vis) light, few photocatalysts can use the near-infrared (NIR) portion of sun light. Herein, we developed a new photocatalyst (denoted as Pp/pGCN) by modifying protonated g-C3N4 (pGCN) with protoporphyrin (Pp). Pp/pGCN showed superior activity than g-C3N4 (GCN), pGCN, and Pp in photocatalytic water splitting to produce H-2, either under Vis-NIR (lambda > 420 nm) light or NIR (lambda > 780 nm) light. Reasons for the enhanced catalytic activity were elucidated via relevant physico-chemical characterization. This work may furnish a new example for the design of new photocatalysts that can make full use of the NIR portion of sunlight.
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