Porous Glass Microspheres from Alkali-Activated Fiber Glass Waste

Fiber glass waste (FGW) was subjected to alkali activation in an aqueous solution with different concentrations of sodium/potassium hydroxide. The activated materials were fed into a methane–oxygen flame with a temperature of around 1600 °C. X-ray diffraction analysis confirmed the formation of seve...

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Autores principales: Mahmoud, Mokhtar, Kraxner, Jozef, Kaňková, Hana, Hujová, Miroslava, Chen, Si, Galusek, Dušan, Bernardo, Enrico
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2022
Materias:
Communication
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8838283/
https://www.ncbi.nlm.nih.gov/pubmed/35160986
http://dx.doi.org/10.3390/ma15031043
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author Mahmoud, Mokhtar
Kraxner, Jozef
Kaňková, Hana
Hujová, Miroslava
Chen, Si
Galusek, Dušan
Bernardo, Enrico
author_facet Mahmoud, Mokhtar
Kraxner, Jozef
Kaňková, Hana
Hujová, Miroslava
Chen, Si
Galusek, Dušan
Bernardo, Enrico
author_sort Mahmoud, Mokhtar
collection PubMed
description Fiber glass waste (FGW) was subjected to alkali activation in an aqueous solution with different concentrations of sodium/potassium hydroxide. The activated materials were fed into a methane–oxygen flame with a temperature of around 1600 °C. X-ray diffraction analysis confirmed the formation of several hydrated compounds, which decomposed upon flame synthesis, leading to porous glass microspheres (PGMs). Pore formation was favored by using highly concentrated activating alkali solutions. The highest homogeneity and yield of PGMs corresponded to the activation with 9 M KOH aqueous solution.
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spelling pubmed-88382832022-02-13 Porous Glass Microspheres from Alkali-Activated Fiber Glass Waste Mahmoud, Mokhtar Kraxner, Jozef Kaňková, Hana Hujová, Miroslava Chen, Si Galusek, Dušan Bernardo, Enrico Materials (Basel) Communication Fiber glass waste (FGW) was subjected to alkali activation in an aqueous solution with different concentrations of sodium/potassium hydroxide. The activated materials were fed into a methane–oxygen flame with a temperature of around 1600 °C. X-ray diffraction analysis confirmed the formation of several hydrated compounds, which decomposed upon flame synthesis, leading to porous glass microspheres (PGMs). Pore formation was favored by using highly concentrated activating alkali solutions. The highest homogeneity and yield of PGMs corresponded to the activation with 9 M KOH aqueous solution. MDPI 2022-01-28 /pmc/articles/PMC8838283/ /pubmed/35160986 http://dx.doi.org/10.3390/ma15031043 Text en © 2022 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Communication
Mahmoud, Mokhtar
Kraxner, Jozef
Kaňková, Hana
Hujová, Miroslava
Chen, Si
Galusek, Dušan
Bernardo, Enrico
Porous Glass Microspheres from Alkali-Activated Fiber Glass Waste
title Porous Glass Microspheres from Alkali-Activated Fiber Glass Waste
title_full Porous Glass Microspheres from Alkali-Activated Fiber Glass Waste
title_fullStr Porous Glass Microspheres from Alkali-Activated Fiber Glass Waste
title_full_unstemmed Porous Glass Microspheres from Alkali-Activated Fiber Glass Waste
title_short Porous Glass Microspheres from Alkali-Activated Fiber Glass Waste
title_sort porous glass microspheres from alkali-activated fiber glass waste
topic Communication
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8838283/
https://www.ncbi.nlm.nih.gov/pubmed/35160986
http://dx.doi.org/10.3390/ma15031043
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