title: Studies on photocatalytic CO(2) reduction over NH2 -Uio-66(Zr) and its derivatives: towards a better understanding of photocatalysis on metal-organic frameworks.
abstract: Metal-organic framework (MOF) NH2 -Uio-66(Zr) exhibits photocatalytic activity for CO2 reduction in the presence of triethanolamine as sacrificial agent under visible-light irradiation. Photoinduced electron transfer from the excited 2-aminoterephthalate (ATA) to Zr oxo clusters in NH2 -Uio-66(Zr) was for the first time revealed by photoluminescence studies. Generation of Zr(III) and its involvement in photocatalytic CO2 reduction was confirmed by ESR analysis. Moreover, NH2 -Uio-66(Zr) with mixed ATA and 2,5-diaminoterephthalate (DTA) ligands was prepared and shown to exhibit higher performance for photocatalytic CO2 reduction due to its enhanced light adsorption and increased adsorption of CO2 . This study provides a better understanding of photocatalytic CO2 reduction over MOF-based photocatalysts and also demonstrates the great potential of using MOFs as highly stable, molecularly tunable, and recyclable photocatalysts in CO2 reduction.
authors.affiliation: Research Institute of Photocatalysis, Fujian Provincial Key Laboratory of Photocatalysis, State Key Laboratory Breeding Base, College of Chemistry and Chemical Engineering, Fuzhou University, Fuzhou 350002 (P. R. China).
authors.forename: Dengrong
authors.initials: D
authors.lastname: Sun
authors.forename: Yanghe
authors.initials: Y
authors.lastname: Fu
authors.forename: Wenjun
authors.initials: W
authors.lastname: Liu
authors.forename: Lin
authors.initials: L
authors.lastname: Ye
authors.forename: Dengke
authors.initials: D
authors.lastname: Wang
authors.forename: Lin
authors.initials: L
authors.lastname: Yang
authors.forename: Xianzhi
authors.initials: X
authors.lastname: Fu
authors.forename: Zhaohui
authors.initials: Z
authors.lastname: Li
keywords: carbon dioxide fixation; metal-organic frameworks; photochemistry; reduction; zirconium