Wei Yuan-Ping, Liu Yi, Guo Fan, Dao Xiao-Yao, Sun Wei-Yin
Coordination Chemistry Institute, State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Nanjing National Laboratory of Microstructures, Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing 210023, China.
Dalton Trans. 2019 Jun 21;48(23):8221-8226. doi: 10.1039/c9dt01767d. Epub 2019 May 15.
Conversion of carbon dioxide (CO) into useful chemicals is an important and urgent task from the energy and environment perspective. Herein, through a post-synthetic modification (PSM) approach, we synthesized three new metal-organic frameworks (MOFs) UiO-68-PSMs with different functional groups, namely, UiO-68-F, UiO-68-CH and UiO-68-OCH, for the photocatalytic reduction of CO. By introducing electron-withdrawing and electron-donating groups, UiO-68-PSMs showed different performance for the selective photocatalytic reduction of CO to CO because of change in charge separation and band gap of UiO caused by the presence of different functional groups.
从能源和环境角度来看，将二氧化碳（CO₂）转化为有用的化学品是一项重要且紧迫的任务。在此，我们通过后合成修饰（PSM）方法，合成了三种具有不同官能团的新型金属有机框架材料（MOF）——UiO-68-PSM，即UiO-68-F、UiO-68-CH和UiO-68-OCH，用于光催化还原CO₂。通过引入吸电子基团和供电子基团，由于不同官能团的存在导致UiO电荷分离和带隙发生变化，UiO-68-PSM在将CO₂选择性光催化还原为CO方面表现出不同的性能。
