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Surfactin as a Green Agent Controlling the Growth of Porous Calcite Microstructures

This study presents a new, simple way to obtain mesoporous calcite structures via a green method using an eco-friendly surface-active compound, surfactin, as a controlling agent. The effects of synthesis time and surfactin concentration were investigated. The obtained structures were characterized b...

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Autores principales: Bastrzyk, Anna, Fiedot-Toboła, Marta, Maniak, Halina, Polowczyk, Izabela, Płaza, Grażyna
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2020
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7432438/
https://www.ncbi.nlm.nih.gov/pubmed/32752269
http://dx.doi.org/10.3390/ijms21155526
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author Bastrzyk, Anna
Fiedot-Toboła, Marta
Maniak, Halina
Polowczyk, Izabela
Płaza, Grażyna
author_facet Bastrzyk, Anna
Fiedot-Toboła, Marta
Maniak, Halina
Polowczyk, Izabela
Płaza, Grażyna
author_sort Bastrzyk, Anna
collection PubMed
description This study presents a new, simple way to obtain mesoporous calcite structures via a green method using an eco-friendly surface-active compound, surfactin, as a controlling agent. The effects of synthesis time and surfactin concentration were investigated. The obtained structures were characterized by X-ray powder diffraction (XRD), scanning electron microscopy (SEM), thermogravimetric analysis (TGA), and differential scanning calorimetry (DSC) coupled with gas mass spectrometry (QMS) analysis. The experimental data showed that surfactin molecules significantly changed the morphology of the calcite crystals, roughening and deforming the surface and creating a greater specific surface area, even at low biosurfactant concentrations (10 ppm). The size of the crystals was reduced, and the zeta potential value of calcium carbonate was more negative when more biosurfactant was added. The XRD data revealed that the biomolecules were incorporated into the crystals and slowed the transformation of vaterite into calcite. It has been shown that as long as vaterite is present in the medium, the calcite surface will be less deformed. The strong influence of surfactin molecules on the crystal growth of calcium carbonate was due to the interaction of surfactin molecules with free calcium ions in the solution as well as the biomolecules adsorption at the formed crystal surface. The role of micelles in crystal growth was examined, and the mechanism of mesoporous calcium carbonate formation was presented.
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spelling pubmed-74324382020-08-24 Surfactin as a Green Agent Controlling the Growth of Porous Calcite Microstructures Bastrzyk, Anna Fiedot-Toboła, Marta Maniak, Halina Polowczyk, Izabela Płaza, Grażyna Int J Mol Sci Article This study presents a new, simple way to obtain mesoporous calcite structures via a green method using an eco-friendly surface-active compound, surfactin, as a controlling agent. The effects of synthesis time and surfactin concentration were investigated. The obtained structures were characterized by X-ray powder diffraction (XRD), scanning electron microscopy (SEM), thermogravimetric analysis (TGA), and differential scanning calorimetry (DSC) coupled with gas mass spectrometry (QMS) analysis. The experimental data showed that surfactin molecules significantly changed the morphology of the calcite crystals, roughening and deforming the surface and creating a greater specific surface area, even at low biosurfactant concentrations (10 ppm). The size of the crystals was reduced, and the zeta potential value of calcium carbonate was more negative when more biosurfactant was added. The XRD data revealed that the biomolecules were incorporated into the crystals and slowed the transformation of vaterite into calcite. It has been shown that as long as vaterite is present in the medium, the calcite surface will be less deformed. The strong influence of surfactin molecules on the crystal growth of calcium carbonate was due to the interaction of surfactin molecules with free calcium ions in the solution as well as the biomolecules adsorption at the formed crystal surface. The role of micelles in crystal growth was examined, and the mechanism of mesoporous calcium carbonate formation was presented. MDPI 2020-08-01 /pmc/articles/PMC7432438/ /pubmed/32752269 http://dx.doi.org/10.3390/ijms21155526 Text en © 2020 by the authors. 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 (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Bastrzyk, Anna
Fiedot-Toboła, Marta
Maniak, Halina
Polowczyk, Izabela
Płaza, Grażyna
Surfactin as a Green Agent Controlling the Growth of Porous Calcite Microstructures
title Surfactin as a Green Agent Controlling the Growth of Porous Calcite Microstructures
title_full Surfactin as a Green Agent Controlling the Growth of Porous Calcite Microstructures
title_fullStr Surfactin as a Green Agent Controlling the Growth of Porous Calcite Microstructures
title_full_unstemmed Surfactin as a Green Agent Controlling the Growth of Porous Calcite Microstructures
title_short Surfactin as a Green Agent Controlling the Growth of Porous Calcite Microstructures
title_sort surfactin as a green agent controlling the growth of porous calcite microstructures
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7432438/
https://www.ncbi.nlm.nih.gov/pubmed/32752269
http://dx.doi.org/10.3390/ijms21155526
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AT polowczykizabela surfactinasagreenagentcontrollingthegrowthofporouscalcitemicrostructures
AT płazagrazyna surfactinasagreenagentcontrollingthegrowthofporouscalcitemicrostructures