Boosting near-infrared-driven photocatalytic H2 evolution using protoporphyrin-sensitized g-C3N4

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  • Yanfei Liu, Fudan University, University of Shanghai for Science and Technology
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  • Shifei Kang, University of Shanghai for Science and Technology
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  • Lifeng Cui, University of Shanghai for Science and Technology, Dongguan University of Technology
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  • Zhen Ma, Fudan University, Tongji University

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 H2, either under Vis-NIR (λ > 420 nm) light or NIR (λ > 780 nm) light. Reasons for the enhanced catalytic activity were elucidated via relevant physicochemical 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.

Original languageEnglish
Article number112517
JournalJournal of Photochemistry and Photobiology A: Chemistry
Number of pages9
Publication statusPublished - 2020

    Research areas

  • g-CN, Hevolution, Near-Infrared-Driven, Protoporphyrin, Water splitting

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