Facile synthesis of bimetallic ZnCo-ZIFs and Ag nanoparticles loading on ZnCo-ZIFs (Ag/ZnCo-ZIFs)

Dang Huynh Giao * , Ho Ngoc Tri Tan , Doan Van Hong Thien , Pham Van Toan , Le Thi Anh Thu and Ta Kieu Anh

* Corresponding author (dhgiao@ctu.edu.vn)

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Received: 21 May 2020
Revised: 21 Jun 2020
Accepted: 30 Nov 2020
Published: 30 Nov 2020
DOI: 10.22144/ctu.jen.2020.023
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Dang, H. G., Ho, N. T. T., Doan, V. H. T., Pham, V. T., Le, T. A. T., & Ta, K. A. (2020). Facile synthesis of bimetallic ZnCo-ZIFs and Ag nanoparticles loading on ZnCo-ZIFs (Ag/ZnCo-ZIFs). CTU Journal of Innovation and Sustainable Development , 12(3), 47-53. https://doi.org/10.22144/ctu.jen.2020.023
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Vol. 12 No. 3 (2020)

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Abstract

A bimetallic Zn/Co zeolitic imidazole frameworks (ZnCo-ZIFs) was successfully synthesized from 2-methylimidazole and two metal salts including zinc nitrate, cobalt (II) nitrate by a solvothermal method at the room temperature. Subsequently, Ag nanoparticles (AgNPs) loading on bimetallic frameworks was prepared by a facile impregnation method in acetone solvent. Both ZnCo-ZIFs and Ag/ZnCo-ZIFs was analyzed by several characterization techniques including X-ray powder diffraction (PXRD), scanning electron microscope (SEM), Fourier transform infrared spetroscopy (FT-IR), thermogravimetric analysis (TGA) and energy-dispersive X-ray spectroscopy (EDX). The results showed that ZnCo-ZIFs crystals had sodalite structure, high thermal stability and AgNPs was successfully loaded on the ZnCo-ZIFs with content of 18.42%. Ag/ZnCo-ZIFs in this combination may pave a way for the preparation a kind of heterogeneous catalyst to remove organic compounds from aqueous solutions.
Keywords: Ag/ZnCo-ZIFs, bimetallic, nanoparticles, zeolitic imidazole frameworks, ZnCo-ZIFs

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