Adenine Components in Biomimetic Metal–Organic Frameworks for Efficient CO2 Photoconversion. (7th February 2019)

• Record Type: Journal Article
• Authors: Li, Ning; Liu, Jiang; Liu, Jing‐Jing; Dong, Long‐Zhang; Xin, Zhi‐Feng; Teng, Yun‐Lei; Lan, Ya‐Qian
• Is Part Of: Angewandte Chemie. Volume 131:Number 16(2019)
• Page Start: 5280
• Page End: 5285
• Publication Date: 2019-02-07
• Subjects: Biomimetische Katalyse -- Hydrophobie -- Metall-organische Gerüste -- Photochemie -- Photosynthese; Chemistry -- Periodicals; 540
• DOI: 10.1002/ange.201814729
• Languages: English
• ISSNs: 0044-8249

Abstract

Abstract: Visible‐light driven photoconversion of CO2 into energy carriers is highly important to the natural carbon balance and sustainable development. Demonstrated here is the adenine‐dependent CO2 photoreduction performance in green biomimetic metal–organic frameworks. Photocatalytic results indicate thatAD‐MOF‐2 exhibited a very high HCOOH production rate of 443.2 μmol g −1 h −1 in pure aqueous solution, and is more than two times higher than that ofAD‐MOF‐1 (179.0 μmol g −1 h −1 ) in acetonitrile solution. Significantly, experimental and theoretical evidence reveal that the CO2 photoreduction reaction mainly takes place at the aromatic nitrogen atom of adenine molecules through a unique o ‐amino‐assisted activation rather than at the metal center. This work not only serves as an important case study for the development of green biomimetic photocatalysts used for artificial photosynthesis, but also proposes a new catalytic strategy for efficient CO2 photoconversion.