Water-stable Mn-based MOF nanosheet as robust visible-light-responsive photocatalyst in aqueous solution
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ter-stable Mn-based MOF nanosheet as robust visible-light-responsive photocatalyst in aqueous solution 1
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Yejun Xiao , Xiangyang Guo , Tongtong Yang , Junxue Liu , Xuan Liu , Yu Xiao , 1,4 5 1 2 1* 1* Lifang Liu , Taifeng Liu , Sheng Ye , Jun Jiang , Fuxiang Zhang & Can Li 1
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State Key Laboratory of Catalysis, Dalian National Laboratory for Clean Energy, the Collaborative Innovation Center of Chemistry for
Energy Materials, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China; Hefei National Laboratory for Physical Sciences at the Microscale, CAS Center for Excellence in Nanoscience, School of Chemistry and 3
Materials Science, University of Science and Technology of China, Hefei 230026, China; State Key Laboratory of Molecular Reaction Dynamics, the Collaborative Innovation Center of Chemistry for Energy Materials,
Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalin 116023, China; 4 University of Chinese Academy of Sciences, Beijing 100049, China; 5 National & Local Joint Engineering Research Center for Applied Technology of Hybrid Nanomaterials, Collaborative Innovation Center of Nano Functional Materials and Applications of Henan Province, Henan University, Kaifeng 475000, China Received June 22, 2020; accepted June 28, 2020; published online August 24, 2020
Development of visible-light-responsive metal-organic frameworks (MOFs) for promising solar energy conversion has inspired continuous interest, but it still suffers from poor stability especially in aqueous solution and/or under photoirradiation due to their relatively labile coordination bonds. Herein, a new synthesized layered Mn-based MOF (Mn-TBAPy-BK) and its exfoliated twodemensional nanosheets (Mn-TBAPy-NS) are revealed to be highly stable no matter in aqueous solution with wide pH region or under visible light irradiation. As expected, the exfoliated Mn-TBAPy-NS exhibits enhanced surface area, shortened charge transfer distance, and superior charge separation with respect to the bulk one. Moreover, the as-obtained nanosheets can be employed as effective building block for nanocomposite and heterostructure assembly to further promote charge separation as well as solar hydrogen production from aqueous solution under visible light. The finding of water stable MOF nanosheet under visible light demonstrates its promising future for solar energy conversion. metal-organic framework, nanosheet, water stable, photocatalyst, nanocomposite Citation:
Xiao Y, Guo X, Yang T, Liu J, Liu X, Xiao Y, Liu L, Liu T, Ye S, Jiang J, Zhang F, Li C. Water-stable Mn-based MOF nanosheet as robust visible-light-responsive photocatalyst in aqueous solution. Sci China Chem, 2020, 63, https://doi.org/10.1007/s11426-020-9809-x
Two-dimensional (2D) nanosheets with ultrathin thickness have achieved fast-paced development in both fundamental researches and proof-of-concept applications such as Li-ions batteries, supercapacitors, sensors and catalysis due to their exceptionally functional properties [1–5].
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