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Photoredox‐Catalyzed Simultaneous Olefin Hydrogenation and Alcohol Oxidation over Crystalline Porous Polymeric Carbon Nitride
Author(s) -
Qiu Chuntian,
Sun Yangyang,
Xu Yangsen,
Zhang Bing,
Zhang Xu,
Yu Lei,
Su Chenliang
Publication year - 2021
Publication title -
chemsuschem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.412
H-Index - 157
eISSN - 1864-564X
pISSN - 1864-5631
DOI - 10.1002/cssc.202101041
Subject(s) - photocatalysis , carbon nitride , catalysis , redox , photochemistry , olefin fiber , materials science , graphitic carbon nitride , chemical engineering , electron transfer , reactivity (psychology) , carbon fibers , porosity , selectivity , chemistry , inorganic chemistry , organic chemistry , composite number , engineering , composite material , medicine , alternative medicine , pathology
Booming of photocatalytic water splitting technology (PWST) opens a new avenue for the sustainable synthesis of high‐value‐added hydrogenated and oxidized fine chemicals, in which the design of efficient semiconductors for the in‐situ and synergistic utilization of photogenerated redox centers are key roles. Herein, a porous polymeric carbon nitride (PPCN) with a crystalline backbone was constructed for visible light‐induced photocatalytic hydrogen generation by photoexcited electrons, followed by in‐situ utilization for olefin hydrogenation. Simultaneously, various alcohols were selectively transformed to valuable aldehydes or ketones by photoexcited holes. The porosity of PPCN provided it with a large surface area and a short transfer path for photogenerated carriers from the bulk to the surface, and the crystalline structure facilitated photogenerated charge transfer and separation, thus enhancing the overall photocatalytic performance. High reactivity and selectivity, good functionality tolerance, and broad reaction scope were achieved by this concerted photocatalysis system. The results contribute to the development of highly efficient semiconductor photocatalysts and synergistic redox reaction systems based on PWST for high‐value‐added fine chemical production.