Synthesis of UiO-66-Sal-Cu(OH)2 by a Simple and Novel Method: MOF-Based Metal Thin Film as a Heterogeneous Catalyst for Olefin Oxidation

Fatemeh Moghadaskhou; Azadeh Tadjarodi; Afsaneh Mollahosseini; Ali Maleki

doi:10.1021/acsami.2c18907

Synthesis of UiO-66-Sal-Cu(OH)₂ by a Simple and Novel Method: MOF-Based Metal Thin Film as a Heterogeneous Catalyst for Olefin Oxidation

ACS Appl Mater Interfaces. 2023 Jan 25;15(3):4021-4032. doi: 10.1021/acsami.2c18907. Epub 2023 Jan 12.

Authors

Fatemeh Moghadaskhou¹, Azadeh Tadjarodi¹, Afsaneh Mollahosseini², Ali Maleki³

Affiliations

¹ Research Laboratory of Inorganic Materials Synthesis, Department of Chemistry, Iran University of Science and Technology, 16846-13114 Tehran, Iran.
² Research Laboratory of Spectroscopy & Micro and Nano Extraction, Department of Chemistry, Iran University of Science and Technology, 16846-13114 Tehran, Iran.
³ Catalysts and Organic Synthesis Research Laboratory, Department of Chemistry, Iran University of Science and Technology, 16846-13114 Tehran, Iran.

PMID: 36633596
DOI: 10.1021/acsami.2c18907

Abstract

Metal-organic frameworks (MOFs), particularly UiO-66-NH₂, are employed as a catalyst in many industrial catalyst applications. As converting catalysts into thin film significantly increases their catalytic properties for the epoxidation of olefins, we report a general approach to synthesizing MOF thin films (UiO-66-Sal-Cu(OH)₂). Using the postsynthesis method (PSM), UiO-66-NH₂ was functionalized with salicylaldehyde and entrapped on copper hydroxide nanoparticle surfaces using a modern strategy (MOF thin film). We used field-emission scanning electron microscopy (FE-SEM), EDX (energy-dispersive X-ray analysis), XRD (X-ray diffraction), FT-IR (Fourier transform infrared), BET (Brunauer-Emmett-Teller), TGA (thermogravimetric analysis), XPS (X-ray photoelectron spectroscopy), and ICP-MS (inductively coupled plasma mass spectrometry) to determine the structure and morphology of the synthesized UiO-66-Sal-Cu(OH)₂. The oxidation of cyclooctene by the UiO-66-Sal-Cu(OH)₂ thin film was studied. Due to its advantages, such as being environmentally friendly (base metal-loaded catalyst, room temperature, solvent-free reaction), reusability, and high yield, this compound can be an appropriate catalyst for the oxidation of olefins.

Keywords: MOF thin film; UiO-66-NH2; copper(II) hydroxide nanowires; heterogeneous catalysts; metal−organic frameworks; oxidation of cyclooctene.