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论文类型：期刊论文

发表时间：2018-07-05

发表刊物：APPLIED CATALYSIS B-ENVIRONMENTAL

收录刊物：SCIE、EI

卷号：227

页面范围：54-60

ISSN号：0926-3373

关键字：CO2 reduction; Photocatalysis; Metal-organic frameworks; Nanosheets; Zn porphyrin

摘要：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.