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One-Step Synthesis of Calcium Sulfate Hemihydrate Nanofibers from Calcite at Room Temperature

[Image: see text] In recent years, researchers have made significant progress in the development of inorganic nanofibers (including nanowires). Typically, inorganic nanofibers are synthesized via crystal growth in solution; however, a limited number of studies have focused on their preparation direc...

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Autores principales: Fukugaichi, Satoru, Matsue, Naoto
Formato: Online Artículo Texto
Lenguaje:English
Publicado: American Chemical Society 2018
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6641323/
https://www.ncbi.nlm.nih.gov/pubmed/31458558
http://dx.doi.org/10.1021/acsomega.7b01994
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author Fukugaichi, Satoru
Matsue, Naoto
author_facet Fukugaichi, Satoru
Matsue, Naoto
author_sort Fukugaichi, Satoru
collection PubMed
description [Image: see text] In recent years, researchers have made significant progress in the development of inorganic nanofibers (including nanowires). Typically, inorganic nanofibers are synthesized via crystal growth in solution; however, a limited number of studies have focused on their preparation directly from solid raw materials (with no examples of synthesis conducted at room temperature and atmospheric pressure). In this work, we successfully synthesized nanofibers of calcium sulfate hemihydrate (bassanite, CaSO(4)·0.5H(2)O) at 20 °C and 1 atm by mixing calcite and dilute sulfuric acid in methanol. The bassanite nanofibers are concluded to be synthesized by the formation of calcium sulfate on the calcite surface and its simultaneous reaction with the generated H(2)O. Because bassanite exhibits useful physical properties that include high mechanical strength, high thermal stability, and excellent chemical stability, its nanofibers can be widely applied to rubber, plastics, antifriction materials, and paper as a strengthening agent, for heat-resistance, or as a flame retardant, or for creep resistance.
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spelling pubmed-66413232019-08-27 One-Step Synthesis of Calcium Sulfate Hemihydrate Nanofibers from Calcite at Room Temperature Fukugaichi, Satoru Matsue, Naoto ACS Omega [Image: see text] In recent years, researchers have made significant progress in the development of inorganic nanofibers (including nanowires). Typically, inorganic nanofibers are synthesized via crystal growth in solution; however, a limited number of studies have focused on their preparation directly from solid raw materials (with no examples of synthesis conducted at room temperature and atmospheric pressure). In this work, we successfully synthesized nanofibers of calcium sulfate hemihydrate (bassanite, CaSO(4)·0.5H(2)O) at 20 °C and 1 atm by mixing calcite and dilute sulfuric acid in methanol. The bassanite nanofibers are concluded to be synthesized by the formation of calcium sulfate on the calcite surface and its simultaneous reaction with the generated H(2)O. Because bassanite exhibits useful physical properties that include high mechanical strength, high thermal stability, and excellent chemical stability, its nanofibers can be widely applied to rubber, plastics, antifriction materials, and paper as a strengthening agent, for heat-resistance, or as a flame retardant, or for creep resistance. American Chemical Society 2018-03-08 /pmc/articles/PMC6641323/ /pubmed/31458558 http://dx.doi.org/10.1021/acsomega.7b01994 Text en Copyright © 2018 American Chemical Society This is an open access article published under an ACS AuthorChoice License (http://pubs.acs.org/page/policy/authorchoice_termsofuse.html) , which permits copying and redistribution of the article or any adaptations for non-commercial purposes.
spellingShingle Fukugaichi, Satoru
Matsue, Naoto
One-Step Synthesis of Calcium Sulfate Hemihydrate Nanofibers from Calcite at Room Temperature
title One-Step Synthesis of Calcium Sulfate Hemihydrate Nanofibers from Calcite at Room Temperature
title_full One-Step Synthesis of Calcium Sulfate Hemihydrate Nanofibers from Calcite at Room Temperature
title_fullStr One-Step Synthesis of Calcium Sulfate Hemihydrate Nanofibers from Calcite at Room Temperature
title_full_unstemmed One-Step Synthesis of Calcium Sulfate Hemihydrate Nanofibers from Calcite at Room Temperature
title_short One-Step Synthesis of Calcium Sulfate Hemihydrate Nanofibers from Calcite at Room Temperature
title_sort one-step synthesis of calcium sulfate hemihydrate nanofibers from calcite at room temperature
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6641323/
https://www.ncbi.nlm.nih.gov/pubmed/31458558
http://dx.doi.org/10.1021/acsomega.7b01994
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