| アイテムタイプ |
学術雑誌論文 = Journal Article(1) |
| 公開日 |
2024-05-22 |
| 資源タイプ |
|
|
資源タイプ識別子 |
http://purl.org/coar/resource_type/c_6501 |
|
資源タイプ |
journal article |
| タイトル |
|
|
タイトル |
Swelling and delamination of inorganic homoionic montmorillonite clay in water–polar organic mixed solvents |
|
言語 |
en |
| その他のタイトル |
|
|
その他のタイトル |
Swelling and delamination of inorganic homoionic montmorillonite clay in water-polar organic mixed solvents |
|
言語 |
en |
| 言語 |
|
|
言語 |
eng |
| 著者 |
中戸, 晃之
Kubota, Munehiro
Otsuka, Yuki
Yane, Yuta
Orio, Kosei
毛利, 恵美子
Yamauchi, Yusuke
Miyata, Hirokatsu
|
| 抄録 |
|
|
内容記述タイプ |
Abstract |
|
内容記述 |
The smectite group of clay minerals (smectites) consists of negatively charged clay layers and interlayer exchangeable cations. They are spontaneously delaminated in water to form single clay layers when the interlayer cations are small alkaline cations such as Na+ or Li+. This phenomenon known as osmotic swelling has fundamental importance in constructing novel clay-based nanomaterials. However, osmotic swelling of smectites has not been systematically investigated in organic solvents although this phenomenon should be useful for developing novel clay–organic nanocomposites. We report herein that montmorillonite, a typical smectite, with monovalent and divalent inorganic interlayer cations shows osmotic swelling accompanied by delamination of clay layers in water–acetonitrile and water–2-propanol mixed solvents, although inorganic interlayer cations have been believed to be inappropriate for delamination of smectites in organic solvents. The delamination is confirmed by a combination of macroscopic sample appearances, XRD patterns, and SEM images. Montmorillonite with interlayer Na+ or Li+ ions shows osmotic swelling in pure water and the mixed solvents but not in pure organic solvents. Montmorillonite with alkaline earth dications in the interlayer spaces is swollen in water–organic mixed solvents but not in either pure water or organic solvents alone. Partial delamination in several systems can be clarified from SEM images even though the sample appearances and XRD patterns do not give firm evidence. Such non-uniform swelling behavior of montmorillonite is related to the disordered stacking of the aluminosilicate layers with different morphologies in the clay powders as observed by SEM. |
|
言語 |
en |
| 書誌情報 |
en : Dalton Transactions
巻 53,
号 17,
p. 7571-7579,
発行日 2024-04-01
|
| 出版社 |
|
|
出版者 |
Royal Society of Chemistry |
|
言語 |
en |
| DOI |
|
|
|
識別子タイプ |
DOI |
|
|
関連識別子 |
https://doi.org/10.1039/D4DT00192C |
| ISSN |
|
|
収録物識別子タイプ |
EISSN |
|
収録物識別子 |
1477-9234 |
| 著作権関連情報 |
|
|
権利情報 |
opyright (c) Royal Society of Chemistry 2024 |
| 出版タイプ |
|
|
出版タイプ |
AM |
|
出版タイプResource |
http://purl.org/coar/version/c_ab4af688f83e57aa |
| 査読の有無 |
|
|
値 |
yes |
| 研究者情報 |
|
|
URL |
https://hyokadb02.jimu.kyutech.ac.jp/html/100000325_ja.html |
| 研究者情報 |
|
|
URL |
https://hyokadb02.jimu.kyutech.ac.jp/html/122_ja.html |
| 論文ID（連携） |
|
|
値 |
10430490 |
| 連携ID |
|
|
値 |
12261 |
10430490.pdf (8.2 MB)
