Cargando…
Green modification of graphene dispersion with high nanosheet content, good dispersibility, and long storage stability
In this work, an easy, green, noncovalent surface modification of pristine graphene (GR) was carried out using a single-step method between sodium carboxymethyl cellulose (CMC) and pristine GR, resulting in the formation of a modified CMC–GR (CGR) dispersion with 15% nanosheet content, the first rep...
Autores principales: | , , , , , |
---|---|
Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
The Royal Society of Chemistry
2022
|
Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8982014/ https://www.ncbi.nlm.nih.gov/pubmed/35424536 http://dx.doi.org/10.1039/d1ra08520d |
_version_ | 1784681720805588992 |
---|---|
author | Li, Minghua Lu, Xiaoyu Jiang, Jiajia Gao, Lei Gao, Jie Jiang, Dongming |
author_facet | Li, Minghua Lu, Xiaoyu Jiang, Jiajia Gao, Lei Gao, Jie Jiang, Dongming |
author_sort | Li, Minghua |
collection | PubMed |
description | In this work, an easy, green, noncovalent surface modification of pristine graphene (GR) was carried out using a single-step method between sodium carboxymethyl cellulose (CMC) and pristine GR, resulting in the formation of a modified CMC–GR (CGR) dispersion with 15% nanosheet content, the first reported in water. Results obtained from thermogravimetry analysis (TGA), Raman spectroscopy, and atomic force microscopy (AFM) confirm that the CMC modifier is successfully decorated on the pristine GR surface. Analyses of transmittance spectrum, zeta potential and transmittance electron microscopy (TEM) images reveal that the modified CGR has a high degree of dispersion. More importantly, the pristine GR is insoluble, while the modified CGR-3, mixed with 1.1 wt% CMC modifier, is easily well dispersed in water and has good flowability, and no sedimentation is observed after more than 3 months. |
format | Online Article Text |
id | pubmed-8982014 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2022 |
publisher | The Royal Society of Chemistry |
record_format | MEDLINE/PubMed |
spelling | pubmed-89820142022-04-13 Green modification of graphene dispersion with high nanosheet content, good dispersibility, and long storage stability Li, Minghua Lu, Xiaoyu Jiang, Jiajia Gao, Lei Gao, Jie Jiang, Dongming RSC Adv Chemistry In this work, an easy, green, noncovalent surface modification of pristine graphene (GR) was carried out using a single-step method between sodium carboxymethyl cellulose (CMC) and pristine GR, resulting in the formation of a modified CMC–GR (CGR) dispersion with 15% nanosheet content, the first reported in water. Results obtained from thermogravimetry analysis (TGA), Raman spectroscopy, and atomic force microscopy (AFM) confirm that the CMC modifier is successfully decorated on the pristine GR surface. Analyses of transmittance spectrum, zeta potential and transmittance electron microscopy (TEM) images reveal that the modified CGR has a high degree of dispersion. More importantly, the pristine GR is insoluble, while the modified CGR-3, mixed with 1.1 wt% CMC modifier, is easily well dispersed in water and has good flowability, and no sedimentation is observed after more than 3 months. The Royal Society of Chemistry 2022-02-18 /pmc/articles/PMC8982014/ /pubmed/35424536 http://dx.doi.org/10.1039/d1ra08520d Text en This journal is © The Royal Society of Chemistry https://creativecommons.org/licenses/by/3.0/ |
spellingShingle | Chemistry Li, Minghua Lu, Xiaoyu Jiang, Jiajia Gao, Lei Gao, Jie Jiang, Dongming Green modification of graphene dispersion with high nanosheet content, good dispersibility, and long storage stability |
title | Green modification of graphene dispersion with high nanosheet content, good dispersibility, and long storage stability |
title_full | Green modification of graphene dispersion with high nanosheet content, good dispersibility, and long storage stability |
title_fullStr | Green modification of graphene dispersion with high nanosheet content, good dispersibility, and long storage stability |
title_full_unstemmed | Green modification of graphene dispersion with high nanosheet content, good dispersibility, and long storage stability |
title_short | Green modification of graphene dispersion with high nanosheet content, good dispersibility, and long storage stability |
title_sort | green modification of graphene dispersion with high nanosheet content, good dispersibility, and long storage stability |
topic | Chemistry |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8982014/ https://www.ncbi.nlm.nih.gov/pubmed/35424536 http://dx.doi.org/10.1039/d1ra08520d |
work_keys_str_mv | AT liminghua greenmodificationofgraphenedispersionwithhighnanosheetcontentgooddispersibilityandlongstoragestability AT luxiaoyu greenmodificationofgraphenedispersionwithhighnanosheetcontentgooddispersibilityandlongstoragestability AT jiangjiajia greenmodificationofgraphenedispersionwithhighnanosheetcontentgooddispersibilityandlongstoragestability AT gaolei greenmodificationofgraphenedispersionwithhighnanosheetcontentgooddispersibilityandlongstoragestability AT gaojie greenmodificationofgraphenedispersionwithhighnanosheetcontentgooddispersibilityandlongstoragestability AT jiangdongming greenmodificationofgraphenedispersionwithhighnanosheetcontentgooddispersibilityandlongstoragestability |