Bi2O3 nanoparticles encapsulated in surface mounted metal–organic framework thin films

Wei Guo; Zhi Chen; Chengwu Yang; Tobias Neumann; Christian Kübel; Wolfgang Wenzel; Alexander Welle; Wilhelm Pfleging; Osama Shekhah; Christof Wöll; Engelbert Redel

doi:10.1039/C6NR00532B

Bi₂O₃ nanoparticles encapsulated in surface mounted metal–organic framework thin films†

Wei Guo,^a Zhi Chen,^b Chengwu Yang,^a Tobias Neumann,^b Christian Kübel,^bc Wolfgang Wenzel,^b Alexander Welle,^ac Wilhelm Pfleging,^cd Osama Shekhah,^e Christof Wöll^a and Engelbert Redel*^a

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* Corresponding authors

^a Karlsruhe Institute of Technology, Institute of Functional Interfaces (IFG), Hermann-von-Helmholtz-Platz 1, 76344 Eggenstein-Leopoldshafen, Germany
E-mail: Engelbert.Redel@kit.edu

^b Karlsruhe Institute of Technology, Institute of Nanotechnology (INT), Hermann-von-Helmholtz-Platz 1, 76344 Eggenstein-Leopoldshafen, Germany

^c Karlsruhe Institute of Technology, Karlsruhe Nano Micro Facility (KNMF), Hermann-von-Helmholtz-Platz 1, 76344 Eggenstein-Leopoldshafen, Germany

^d Karlsruhe Institute of Technology, Institute of Advanced Materials (IAM), Hermann-von-Helmholtz-Platz 1, 76344 Eggenstein-Leopoldshafen, Germany

^e Advanced Membranes and Porous Materials Center, King Abdulah University of Science and Technology, Kingdom of Saudi-Arabia

Abstract

We describe a novel procedure to fabricate a recyclable hybrid-photocatalyst based on Bi₂O₃@HKUST-1 MOF porous thin films. Bi₂O₃ nanoparticles (NPs) were synthesized within HKUST-1 (or Cu₃(BTC)₂) surface-mounted metal–organic frame-works (SURMOFs) and characterized using X-ray diffraction (XRD), a quartz crystal microbalance (QCM) and transmission electron microscopy (TEM). The Bi₂O₃ semiconductor NPs (diameter 1–3 nm)/SURMOF heterostructures exhibit superior photo-efficiencies compared to NPs synthesized using conventional routes, as demonstrated via the photodegradation of the nuclear fast red (NFR) dye.

Nanoscale

Bi₂O₃ nanoparticles encapsulated in surface mounted metal–organic framework thin films†

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Bi₂O₃ nanoparticles encapsulated in surface mounted metal–organic framework thin films

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