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The Dispersion and Coagulation of Negatively Charged Ca(2)Nb(3)O(10) Perovskite Nanosheets in Sodium Alginate Dispersion
Chemically exfoliated nanosheets have been extensively employed as functional nanofillers for the fabrication of polymer nanocomposites due to their remarkable electrical, magnetic and optical properties. However, achieving a good dispersion of charged nanosheets in polymer matrix, which will determ...
Autores principales: | , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2022
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9370453/ https://www.ncbi.nlm.nih.gov/pubmed/35957020 http://dx.doi.org/10.3390/nano12152591 |
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author | Fu, Si Zhang, Binbin Miao, Zhiying Li, Zhenyang Tu, Rong Zhang, Song Li, Bao-Wen |
author_facet | Fu, Si Zhang, Binbin Miao, Zhiying Li, Zhenyang Tu, Rong Zhang, Song Li, Bao-Wen |
author_sort | Fu, Si |
collection | PubMed |
description | Chemically exfoliated nanosheets have been extensively employed as functional nanofillers for the fabrication of polymer nanocomposites due to their remarkable electrical, magnetic and optical properties. However, achieving a good dispersion of charged nanosheets in polymer matrix, which will determine the performance of polymer nanocomposites, remains a challenge. Herein, we investigated the dispersion and aggregation behavior of negatively charged Ca(2)Nb(3)O(10) (CNO) perovskite nanosheets in negatively charged sodium alginate (SA) aqueous dispersion using dynamic light scattering (DLS). When CNO nanosheets meet with SA, aggregation and coagulation inevitably occurred owing to the absorption of SA on nanosheets. By controlling the electrostatic attraction between positively charged poly(ethylene imine) (PEI) and negatively charged SA, the charge density and hydrodynamic size of SA can be tuned to enable the good dispersion of CNO nanosheets in SA. This result may provide a new strategy to achieve the good dispersion of charged nanosheets in charged polymers for the rational design of multifunctional nanocomposites. |
format | Online Article Text |
id | pubmed-9370453 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2022 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-93704532022-08-12 The Dispersion and Coagulation of Negatively Charged Ca(2)Nb(3)O(10) Perovskite Nanosheets in Sodium Alginate Dispersion Fu, Si Zhang, Binbin Miao, Zhiying Li, Zhenyang Tu, Rong Zhang, Song Li, Bao-Wen Nanomaterials (Basel) Article Chemically exfoliated nanosheets have been extensively employed as functional nanofillers for the fabrication of polymer nanocomposites due to their remarkable electrical, magnetic and optical properties. However, achieving a good dispersion of charged nanosheets in polymer matrix, which will determine the performance of polymer nanocomposites, remains a challenge. Herein, we investigated the dispersion and aggregation behavior of negatively charged Ca(2)Nb(3)O(10) (CNO) perovskite nanosheets in negatively charged sodium alginate (SA) aqueous dispersion using dynamic light scattering (DLS). When CNO nanosheets meet with SA, aggregation and coagulation inevitably occurred owing to the absorption of SA on nanosheets. By controlling the electrostatic attraction between positively charged poly(ethylene imine) (PEI) and negatively charged SA, the charge density and hydrodynamic size of SA can be tuned to enable the good dispersion of CNO nanosheets in SA. This result may provide a new strategy to achieve the good dispersion of charged nanosheets in charged polymers for the rational design of multifunctional nanocomposites. MDPI 2022-07-28 /pmc/articles/PMC9370453/ /pubmed/35957020 http://dx.doi.org/10.3390/nano12152591 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 Fu, Si Zhang, Binbin Miao, Zhiying Li, Zhenyang Tu, Rong Zhang, Song Li, Bao-Wen The Dispersion and Coagulation of Negatively Charged Ca(2)Nb(3)O(10) Perovskite Nanosheets in Sodium Alginate Dispersion |
title | The Dispersion and Coagulation of Negatively Charged Ca(2)Nb(3)O(10) Perovskite Nanosheets in Sodium Alginate Dispersion |
title_full | The Dispersion and Coagulation of Negatively Charged Ca(2)Nb(3)O(10) Perovskite Nanosheets in Sodium Alginate Dispersion |
title_fullStr | The Dispersion and Coagulation of Negatively Charged Ca(2)Nb(3)O(10) Perovskite Nanosheets in Sodium Alginate Dispersion |
title_full_unstemmed | The Dispersion and Coagulation of Negatively Charged Ca(2)Nb(3)O(10) Perovskite Nanosheets in Sodium Alginate Dispersion |
title_short | The Dispersion and Coagulation of Negatively Charged Ca(2)Nb(3)O(10) Perovskite Nanosheets in Sodium Alginate Dispersion |
title_sort | dispersion and coagulation of negatively charged ca(2)nb(3)o(10) perovskite nanosheets in sodium alginate dispersion |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9370453/ https://www.ncbi.nlm.nih.gov/pubmed/35957020 http://dx.doi.org/10.3390/nano12152591 |
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