Hits:

Indexed by:期刊论文

Date of Publication:2018-07-05

Journal:APPLIED CATALYSIS B-ENVIRONMENTAL

Included Journals:SCIE、EI

Volume:227

Page Number:54-60

ISSN No.: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.