Artificial Chlorophyll-like Structure for Photocatalytic CO 2 Chemical Fixation

Open AccessCCS ChemistryRESEARCH ARTICLES28 Mar 2024Artificial Chlorophyll-like Structure for Photocatalytic CO2 Chemical Fixation Lei Li, Wenxiu Liu, Hanghao Ying, Xin He, Shu Shang, Peng Zhang, Xiaodong Zhang, Shuhu Liu, Hui Wang and Yi Xie Lei Li , Wenxiu Liu , Hanghao Ying , Xin He , Shu Shang , Peng Zhang , Xiaodong Zhang , Shuhu Liu , Hui Wang and Yi Xie https://doi.org/10.31635/ccschem.024.202404189 SectionsSupplemental MaterialAboutPDF ToolsAdd to favoritesDownload CitationsTrack Citations ShareFacebookTwitterLinked InEmail In nature, green leaves accomplish photosynthesis via chloroplasts, where the Mg-N4 centered chlorophyll and enzymes undertake light absorption and catalytic reaction, respectively. This intriguing phenomenon inspires us to design an artificial photosynthetic system that synergizes these dual attributes, a field that has remained largely unexplored. Herein, we develop a highly stable artificial chlorophyll-like nitrogen-decorated amorphous carbon material (Mg-NC) featuring abundant Mg-N4 moieties (with high Mg content reaching ≈ 9.2 wt%), which simultaneously integrates the light-absorption center and reaction center to mimic natural photosynthesis of CO2 valorization. As demonstrated, taking photocatalytic CO2 cycloaddition reaction as an example, the Mg-N4 active center in Mg-NC plays as an electronic donor, which can readily inject hot electrons to the adsorbed substrates, resulting in the swift formation of cyclic carbonate products. Remarkably, the as-designed Mg-NC exhibited outstanding photocatalytic CO2 cycloaddition performance, achieving an impressive reaction rate up to 9.67 mmol·g-1·h-1 under mild conditions, which could be kept even under gram scale conditions. Our study offers an artificial biomimetic enzyme heterogeneous photocatalysts for CO2 valorization. Download figure Download PowerPoint Previous articleNext article FiguresReferencesRelatedDetails Issue AssignmentNot Yet AssignedSupporting Information Copyright & Permissions© 2024 Chinese Chemical Society Downloaded 0 times PDF downloadLoading ...