Catalytic Effect of Photoluminescent Zinc Oxide Nanoparticles Formed in the Presence of Quaternary Ammonium Salts
The comparative effect of two quaternary ammonium salts from 1,2-bis(4-pyridyl)ethane (PyQAs), namely N,N′-diphenacyl-1,2-bis(4-pyridinium)ethane dibromide (PyQAs1) and N,N′-di(<i>p</i>-methoxyphenacyl)-1,2-bis(4-pyridinium)ethane dibromide (PyQAs2), upon the size and...
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doaj-6fddfa6af70149058e9df2f897b320652020-11-25T01:14:15ZengMDPI AGMaterials1996-19442019-06-011213206610.3390/ma12132066ma12132066Catalytic Effect of Photoluminescent Zinc Oxide Nanoparticles Formed in the Presence of Quaternary Ammonium SaltsAurel Tăbăcaru0Rodica Mihaela Dinică1Mihaela Cudălbeanu2Cristina Mihaela Nicolescu3Marius Bumbac4Faculty of Sciences and Environment, Department of Chemistry, Physics and Environment, “Dunarea de Jos” University of Galati, 111 Domneasca Street, 800201 Galati, RomaniaFaculty of Sciences and Environment, Department of Chemistry, Physics and Environment, “Dunarea de Jos” University of Galati, 111 Domneasca Street, 800201 Galati, RomaniaFaculty of Sciences and Environment, Department of Chemistry, Physics and Environment, “Dunarea de Jos” University of Galati, 111 Domneasca Street, 800201 Galati, RomaniaInstitute of Multidisciplinary Research for Science and Technology, Valahia University of Targoviste, 13 Aleea Sinaia, 130004 Targoviste, RomaniaInstitute of Multidisciplinary Research for Science and Technology, Valahia University of Targoviste, 13 Aleea Sinaia, 130004 Targoviste, RomaniaThe comparative effect of two quaternary ammonium salts from 1,2-bis(4-pyridyl)ethane (PyQAs), namely N,N′-diphenacyl-1,2-bis(4-pyridinium)ethane dibromide (PyQAs1) and N,N′-di(<i>p</i>-methoxyphenacyl)-1,2-bis(4-pyridinium)ethane dibromide (PyQAs2), upon the size and photoluminescence of zinc oxide nanoparticles (ZnO NPs) was investigated. The formation of ZnO NPs took place in the presence of variable amounts of the two PyQAs species (1, 2.5, and 5%), according to the chemical precipitation of zinc(II) acetate with potassium hydroxide in ethanol under reflux. The obtained ZnO NPs were structurally characterized by means of X-ray powder diffraction, infrared, and Raman spectroscopy. The fluorescence of all supernatant solutions, observed under ultraviolet light, determined us to make an investigation of the solutions by means of liquid chromatography coupled with electrospray ionization mass spectrometry (LC-MS-ESI) in order to elucidate the identity of the newly formed fluorescent species. Such an occurrence thus allowed the invocation of the catalytic effect of zinc(II) ions towards the organic transformation of both nonfluorescent PyQAs surfactants into new fluorescent organic species.https://www.mdpi.com/1996-1944/12/13/2066zinc oxide nanoparticlessurface modificationquaternary ammonium saltsassisted organic synthesisfluorescence |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Aurel Tăbăcaru Rodica Mihaela Dinică Mihaela Cudălbeanu Cristina Mihaela Nicolescu Marius Bumbac |
spellingShingle |
Aurel Tăbăcaru Rodica Mihaela Dinică Mihaela Cudălbeanu Cristina Mihaela Nicolescu Marius Bumbac Catalytic Effect of Photoluminescent Zinc Oxide Nanoparticles Formed in the Presence of Quaternary Ammonium Salts Materials zinc oxide nanoparticles surface modification quaternary ammonium salts assisted organic synthesis fluorescence |
author_facet |
Aurel Tăbăcaru Rodica Mihaela Dinică Mihaela Cudălbeanu Cristina Mihaela Nicolescu Marius Bumbac |
author_sort |
Aurel Tăbăcaru |
title |
Catalytic Effect of Photoluminescent Zinc Oxide Nanoparticles Formed in the Presence of Quaternary Ammonium Salts |
title_short |
Catalytic Effect of Photoluminescent Zinc Oxide Nanoparticles Formed in the Presence of Quaternary Ammonium Salts |
title_full |
Catalytic Effect of Photoluminescent Zinc Oxide Nanoparticles Formed in the Presence of Quaternary Ammonium Salts |
title_fullStr |
Catalytic Effect of Photoluminescent Zinc Oxide Nanoparticles Formed in the Presence of Quaternary Ammonium Salts |
title_full_unstemmed |
Catalytic Effect of Photoluminescent Zinc Oxide Nanoparticles Formed in the Presence of Quaternary Ammonium Salts |
title_sort |
catalytic effect of photoluminescent zinc oxide nanoparticles formed in the presence of quaternary ammonium salts |
publisher |
MDPI AG |
series |
Materials |
issn |
1996-1944 |
publishDate |
2019-06-01 |
description |
The comparative effect of two quaternary ammonium salts from 1,2-bis(4-pyridyl)ethane (PyQAs), namely N,N′-diphenacyl-1,2-bis(4-pyridinium)ethane dibromide (PyQAs1) and N,N′-di(<i>p</i>-methoxyphenacyl)-1,2-bis(4-pyridinium)ethane dibromide (PyQAs2), upon the size and photoluminescence of zinc oxide nanoparticles (ZnO NPs) was investigated. The formation of ZnO NPs took place in the presence of variable amounts of the two PyQAs species (1, 2.5, and 5%), according to the chemical precipitation of zinc(II) acetate with potassium hydroxide in ethanol under reflux. The obtained ZnO NPs were structurally characterized by means of X-ray powder diffraction, infrared, and Raman spectroscopy. The fluorescence of all supernatant solutions, observed under ultraviolet light, determined us to make an investigation of the solutions by means of liquid chromatography coupled with electrospray ionization mass spectrometry (LC-MS-ESI) in order to elucidate the identity of the newly formed fluorescent species. Such an occurrence thus allowed the invocation of the catalytic effect of zinc(II) ions towards the organic transformation of both nonfluorescent PyQAs surfactants into new fluorescent organic species. |
topic |
zinc oxide nanoparticles surface modification quaternary ammonium salts assisted organic synthesis fluorescence |
url |
https://www.mdpi.com/1996-1944/12/13/2066 |
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