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Preparation and Characterization of Novel 5Mg(OH)(2)·MgSO(4)·7H(2)O Whiskers

Herein, novel monodisperse basic magnesium sulfate whiskers (5Mg(OH)(2)·MgSO(4)·7H(2)O) were prepared under low-temperature and atmospheric-pressure conditions, using the admixture sodium citrate. X-ray diffraction, Raman spectroscopy, scanning electron microscopy, energy-dispersive spectroscopy, tr...

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Detalles Bibliográficos
Autores principales: Ning, Xinkuang, Wu, Chengyou, Chen, Hongdu
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9694521/
https://www.ncbi.nlm.nih.gov/pubmed/36431506
http://dx.doi.org/10.3390/ma15228018
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author Ning, Xinkuang
Wu, Chengyou
Chen, Hongdu
author_facet Ning, Xinkuang
Wu, Chengyou
Chen, Hongdu
author_sort Ning, Xinkuang
collection PubMed
description Herein, novel monodisperse basic magnesium sulfate whiskers (5Mg(OH)(2)·MgSO(4)·7H(2)O) were prepared under low-temperature and atmospheric-pressure conditions, using the admixture sodium citrate. X-ray diffraction, Raman spectroscopy, scanning electron microscopy, energy-dispersive spectroscopy, transmission electron microscopy, selected area electron diffraction, thermogravimetric analysis, Fourier-transform infrared spectroscopy, and X-ray photoelectron spectroscopy were used to characterize the structure and morphology of the whisker products. The analysis results showed that the product was composed of high-purity basic magnesium sulfate whiskers. The lengths and diameters of the whiskers were 10–20 μm and 0.1–0.2 μm, respectively, and their aspect ratios were higher than 30. The formation mechanism of 5Mg(OH)(2)·MgSO(4)·7H(2)O involved direct assembly from the precursors without the formation of magnesium hydroxide for redissolution. High-purity MgO whiskers with smooth surfaces were prepared using the as-prepared whisker products via thermal decomposition. Thus, the findings of this study can provide technical support for the cost-effective industrial-scale preparation of basic magnesium-sulfate whiskers and associated whisker products.
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spelling pubmed-96945212022-11-26 Preparation and Characterization of Novel 5Mg(OH)(2)·MgSO(4)·7H(2)O Whiskers Ning, Xinkuang Wu, Chengyou Chen, Hongdu Materials (Basel) Article Herein, novel monodisperse basic magnesium sulfate whiskers (5Mg(OH)(2)·MgSO(4)·7H(2)O) were prepared under low-temperature and atmospheric-pressure conditions, using the admixture sodium citrate. X-ray diffraction, Raman spectroscopy, scanning electron microscopy, energy-dispersive spectroscopy, transmission electron microscopy, selected area electron diffraction, thermogravimetric analysis, Fourier-transform infrared spectroscopy, and X-ray photoelectron spectroscopy were used to characterize the structure and morphology of the whisker products. The analysis results showed that the product was composed of high-purity basic magnesium sulfate whiskers. The lengths and diameters of the whiskers were 10–20 μm and 0.1–0.2 μm, respectively, and their aspect ratios were higher than 30. The formation mechanism of 5Mg(OH)(2)·MgSO(4)·7H(2)O involved direct assembly from the precursors without the formation of magnesium hydroxide for redissolution. High-purity MgO whiskers with smooth surfaces were prepared using the as-prepared whisker products via thermal decomposition. Thus, the findings of this study can provide technical support for the cost-effective industrial-scale preparation of basic magnesium-sulfate whiskers and associated whisker products. MDPI 2022-11-14 /pmc/articles/PMC9694521/ /pubmed/36431506 http://dx.doi.org/10.3390/ma15228018 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 Article
Ning, Xinkuang
Wu, Chengyou
Chen, Hongdu
Preparation and Characterization of Novel 5Mg(OH)(2)·MgSO(4)·7H(2)O Whiskers
title Preparation and Characterization of Novel 5Mg(OH)(2)·MgSO(4)·7H(2)O Whiskers
title_full Preparation and Characterization of Novel 5Mg(OH)(2)·MgSO(4)·7H(2)O Whiskers
title_fullStr Preparation and Characterization of Novel 5Mg(OH)(2)·MgSO(4)·7H(2)O Whiskers
title_full_unstemmed Preparation and Characterization of Novel 5Mg(OH)(2)·MgSO(4)·7H(2)O Whiskers
title_short Preparation and Characterization of Novel 5Mg(OH)(2)·MgSO(4)·7H(2)O Whiskers
title_sort preparation and characterization of novel 5mg(oh)(2)·mgso(4)·7h(2)o whiskers
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9694521/
https://www.ncbi.nlm.nih.gov/pubmed/36431506
http://dx.doi.org/10.3390/ma15228018
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