Release Time:2019-03-11  Hits:

Indexed by: Journal Article

Date of Publication: 2018-07-05

Journal: APPLIED CATALYSIS B-ENVIRONMENTAL

Included Journals: EI、SCIE

Volume: 227

Page Number: 54-60

ISSN: 0926-3373

Key Words: CO2 reduction; Photocatalysis; Metal-organic frameworks; Nanosheets; Zn porphyrin

Abstract: An ultrathin two-dimensional Zn porphyrin-based metal-organic framework (Zn-MOF nanosheets) is developed and used for the first time in photoreduction of CO2 to CO. Consequently, two novelty noble-metal-free hybrid photocatalytic systems are established and displayed outstanding photocatalytic activity and selectivity for CO evolution under mild photocatalytic reaction conditions. The insight revealed Zn-MOF nanosheets as photo sensitizer displays a better charge transport ability and longer lifetime of the photogenerated electron-hole pairs than the Zn-MOF bulk, which are confirmed by photoelectrochemical impedance and photoluminescence (PL) measurements. These studies show that the development of noble-metal-free photocatalytic systems and various MOF-based materials for photocatalytic applications are promising.