Publication Type Journal Article
Title Green synthesis of zinc oxide particles with apple-derived compounds and their application as catalysts in the transesterification of methyl benzoates
Authors Mohamed M. A. Soliman Elisabete C.B.A. Alegria Ana P. C. Ribeiro Marta M. Alves Marta S. Saraiva M. Fatima Montemor Armando J.L. Pombeiro
Year 2020
Month May
Volume 49
Number 19
Pages 6488-6494
Abstract ZnO nanoparticles (ZnONPs) were successfully synthesized using bravo-de-esmolfe apple extract in aqueous medium at room temperature. ZnO microparticles, prepared with a pure apple phytochemical, quercetin (ZnOq), or without phytochemicals (ZnO) were studied for comparative purposes. The re-use of apple waste for highly efficient catalyst production, based on green synthetic routes, can be added to the concept of a circular economy. The synthesized ZnO particles were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), and N-2 adsorption/desorption Brunauer- Emmett-Teller (BET) theory. The XRD patterns indicated the formation of a hexagonal wurtzite phase with high purity and SEM and TEM analyses revealed the morphology of the particles. The apple extract produced spherical ZnONPs composed of round lamina-like structures, similar to the micro sized lamina-like shape of ZnOq and dissimilar to the flower-like shape of ZnO. The green synthesized ZnO nanoparticles (ZnONPs) led to a high product yield of ca. 96\% within 24 h of reaction time in the transesterification reaction of different carboxylic esters.
Book Title
ISSN 1477-9226
EISSN 1477-9234
Conference Name
Bibtex ID ISI:000536730100031
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