Structure-dependent iron-based metal–organic frameworks for selective CO2-to-CH4 photocatalytic reduction. Issue 48 (27th November 2020)

• Record Type: Journal Article
• Authors: Dao, Xiao-Yao; Guo, Jin-Han; Zhang, Xiao-Yu; Wang, Shi-Qing; Cheng, Xiao-Mei; Sun, Wei-Yin
• Is Part Of: Journal of materials chemistry. Volume 8:Issue 48(2020)
• Page Start: 25850
• Page End: 25856
• Publication Date: 2020-11-27
• Subjects: Materials -- Research -- Periodicals; Chemistry, Analytic -- Periodicals; Environmental sciences -- Research -- Periodicals; 543.0284
• DOI: 10.1039/d0ta10278d
• Languages: English
• ISSNs: 2050-7488

Abstract

Abstract : MIL-100(Fe) exhibits superior activity and selectivity for CH4 generation under visible-light irradiation compared with MIL-101(Fe). Abstract : Visible-light driven reduction of carbon dioxide (CO2 ) to methane (CH4 ) is a challenge in the photocatalytic reaction system. Herein, two Fe-based metal–organic frameworks (MOFs) MIL-100(Fe) and MIL-101(Fe) with single-trimetallic clusters but distinct organic ligands were employed to explore the structure-dependent CO2 conversion performance. Compared with MIL-101(Fe), MIL-100(Fe) exhibits superior catalytic activity and selectivity for CH4 generation under visible-light irradiation via a solvent-free route. This is the first report that MIL-100(Fe) finishes the photoreduction of CO2 into CH4 . Importantly, the plausible conversion pathways of the reaction were given by density functional theory (DFT) calculations. This work furnishes new direction for constructing MOFs to achieve CO2 -to-CH4 conversion.