Facile Synthesis of Copper Nanocubes in Aqueous Phase for Catalytic Esterification Using Green-Conditions

Hazim A Al-Zubaidi; Ahmed Z. M. Al-Bassam; Sahar S. M. Alabdullah

doi:10.24996/ijs.2024.65.2.5

Authors

Hazim A Al-Zubaidi Department of Medical physics, College of Science, Al-Karkh University of Science, Baghdad, Iraq.
Ahmed Z. M. Al-Bassam Department of Postgraduate affairs, University of Baghdad, Baghdad, Iraq. https://orcid.org/0000-0002-2643-5294
Sahar S. M. Alabdullah Department of Chemistry, College of Science, Al-Nahrain University, Al-Jaderia, Baghdad-Iraq

DOI:

https://doi.org/10.24996/ijs.2024.65.2.5

Keywords:

Copper nanocubes, Esterification, Green condition, Catalyst, Methyl acetate

Abstract

This work demonstrated a simple and environmentally friendly method for synthesizing silica-supported copper nanocubes (CuNCs/SiO₂). The copper nanocubes, with a size of 15 ± 5 nm, were synthesized using green reagents and conditions. Ascorbic acid, water, and di-n-butyl sulfide were employed as reducing agent, solvent, and stabilizing ligand, respectively. The designed nanoscale catalyst was utilized for the esterification of acetic acid to methyl acetate at room temperature. The catalyst exhibited high efficiency, converting 80% of the reactant to the desired product (methyl acetate) after 24 hours of reaction at room temperature. The size and shape of copper nanocubes were characterized by transmission electron microscopy (TEM) and X-ray diffraction to characterize the formation of copper nanocubes, while the esterification product was characterized using gas chromatography-mass spectrometry.