Cargando…

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...

Descripción completa

Detalles Bibliográficos
Autores principales: Fu, Si, Zhang, Binbin, Miao, Zhiying, Li, Zhenyang, Tu, Rong, Zhang, Song, Li, Bao-Wen
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2022
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
_version_ 1784766802638667776
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
work_keys_str_mv AT fusi thedispersionandcoagulationofnegativelychargedca2nb3o10perovskitenanosheetsinsodiumalginatedispersion
AT zhangbinbin thedispersionandcoagulationofnegativelychargedca2nb3o10perovskitenanosheetsinsodiumalginatedispersion
AT miaozhiying thedispersionandcoagulationofnegativelychargedca2nb3o10perovskitenanosheetsinsodiumalginatedispersion
AT lizhenyang thedispersionandcoagulationofnegativelychargedca2nb3o10perovskitenanosheetsinsodiumalginatedispersion
AT turong thedispersionandcoagulationofnegativelychargedca2nb3o10perovskitenanosheetsinsodiumalginatedispersion
AT zhangsong thedispersionandcoagulationofnegativelychargedca2nb3o10perovskitenanosheetsinsodiumalginatedispersion
AT libaowen thedispersionandcoagulationofnegativelychargedca2nb3o10perovskitenanosheetsinsodiumalginatedispersion
AT fusi dispersionandcoagulationofnegativelychargedca2nb3o10perovskitenanosheetsinsodiumalginatedispersion
AT zhangbinbin dispersionandcoagulationofnegativelychargedca2nb3o10perovskitenanosheetsinsodiumalginatedispersion
AT miaozhiying dispersionandcoagulationofnegativelychargedca2nb3o10perovskitenanosheetsinsodiumalginatedispersion
AT lizhenyang dispersionandcoagulationofnegativelychargedca2nb3o10perovskitenanosheetsinsodiumalginatedispersion
AT turong dispersionandcoagulationofnegativelychargedca2nb3o10perovskitenanosheetsinsodiumalginatedispersion
AT zhangsong dispersionandcoagulationofnegativelychargedca2nb3o10perovskitenanosheetsinsodiumalginatedispersion
AT libaowen dispersionandcoagulationofnegativelychargedca2nb3o10perovskitenanosheetsinsodiumalginatedispersion