Enhanced Visible-Light-Driven Hydrogen Production through MOF/MOF Heterojunctions.

Autor: Kampouri S; Laboratory for Molecular Simulations, Institute of Chemical Sciences and Engineering, École Polytechnique Fedérale de Lausanne (EPFL Valais), Rue de l'Industrie 17, Sion 1951, Switzerland., Ebrahim FM; Laboratory for Molecular Simulations, Institute of Chemical Sciences and Engineering, École Polytechnique Fedérale de Lausanne (EPFL Valais), Rue de l'Industrie 17, Sion 1951, Switzerland., Fumanal M; Laboratory for Molecular Simulations, Institute of Chemical Sciences and Engineering, École Polytechnique Fedérale de Lausanne (EPFL Valais), Rue de l'Industrie 17, Sion 1951, Switzerland., Nord M; Department of Chemistry, Oregon State University, Gilbert Hall 153, Corvallis, Oregon 97331-4003, United States., Schouwink PA; Laboratory for Molecular Simulations, Institute of Chemical Sciences and Engineering, École Polytechnique Fedérale de Lausanne (EPFL Valais), Rue de l'Industrie 17, Sion 1951, Switzerland., Elzein R; School of Chemical, Biological and Environmental Engineering, Oregon State University, Corvallis, Oregon 97331, United States., Addou R; School of Chemical, Biological and Environmental Engineering, Oregon State University, Corvallis, Oregon 97331, United States., Herman GS; School of Chemical, Biological and Environmental Engineering, Oregon State University, Corvallis, Oregon 97331, United States., Smit B; Laboratory for Molecular Simulations, Institute of Chemical Sciences and Engineering, École Polytechnique Fedérale de Lausanne (EPFL Valais), Rue de l'Industrie 17, Sion 1951, Switzerland., Ireland CP; Laboratory for Molecular Simulations, Institute of Chemical Sciences and Engineering, École Polytechnique Fedérale de Lausanne (EPFL Valais), Rue de l'Industrie 17, Sion 1951, Switzerland., Stylianou KC; Laboratory for Molecular Simulations, Institute of Chemical Sciences and Engineering, École Polytechnique Fedérale de Lausanne (EPFL Valais), Rue de l'Industrie 17, Sion 1951, Switzerland.; Department of Chemistry, Oregon State University, Gilbert Hall 153, Corvallis, Oregon 97331-4003, United States.
Jazyk: angličtina
Zdroj: ACS applied materials & interfaces [ACS Appl Mater Interfaces] 2021 Mar 31; Vol. 13 (12), pp. 14239-14247. Date of Electronic Publication: 2021 Mar 22.
DOI: 10.1021/acsami.0c23163
Abstrakt: A strategy for enhancing the photocatalytic performance of MOF-based systems (MOF: metal-organic framework) is developed through the construction of MOF/MOF heterojunctions. The combination of MIL-167 with MIL-125-NH 2 leads to the formation of MIL-167/MIL-125-NH 2 heterojunctions with improved optoelectronic properties and efficient charge separation. MIL-167/MIL-125-NH 2 outperforms its single components MIL-167 and MIL-125-NH 2 , in terms of photocatalytic H 2 production (455 versus 0.8 and 51.2 μmol h -1 g -1 , respectively), under visible-light irradiation, without the use of any cocatalysts. This is attributed to the appropriate band alignment of these MOFs, the enhanced visible-light absorption, and long charge separation within MIL-167/MIL-125-NH 2 . Our findings contribute to the discovery of novel MOF-based photocatalytic systems that can harvest solar energy and exhibit high catalytic activities in the absence of cocatalysts.
Databáze: MEDLINE
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