| Item type |
学術雑誌論文 / Journal Article.(1) |
| 公開日 |
2023-10-24 |
| 書誌情報 |
en : Carbohydrate Polymer Technologies and Applications
巻 3,
p. 100218,
ページ数 11,
発行日 2022
|
| タイトル |
|
|
タイトル |
Microwave-assisted synthesis and formation mechanism of fluorescent carbon dots from starch |
|
言語 |
en |
| 言語 |
|
|
言語 |
eng |
| キーワード |
|
|
言語 |
en |
|
主題Scheme |
Other |
|
主題 |
Multicolor fluorescence |
| キーワード |
|
|
言語 |
en |
|
主題Scheme |
Other |
|
主題 |
Carbon nanodots |
| キーワード |
|
|
言語 |
en |
|
主題Scheme |
Other |
|
主題 |
Green chemistry |
| キーワード |
|
|
言語 |
en |
|
主題Scheme |
Other |
|
主題 |
Food |
| 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 |
| アクセス権 |
|
|
アクセス権 |
open access |
|
アクセス権URI |
http://purl.org/coar/access_right/c_abf2 |
| 著者 |
Shibata, Hisahiko
Abe, Mina
Sato, Kazuya
上井, 幸司
徳樂, 清孝
飯森, 俊文
|
| 抄録 |
|
|
内容記述タイプ |
Abstract |
|
内容記述 |
We report the synthesis of fluorescent carbon dots (CDs) via the microwave (MW)-assisted hydrothermal treatment of starch in an aqueous phosphoric acid solution. CDs emitting blue, orange, and green fluorescence in different solvents were obtained. The fluorescence quantum yield of the CDs emitting blue fluorescence is 30%, which is comparable to those of semiconductor quantum dots. The formation of the CDs under MW irradiation was monitored using a spectroscopic approach. The formation of blue-fluorescent CDs began at an early stage of the reaction. Subsequently, the CDs underwent aggregation. The aggregations were effectively extracted to the toluene layer by liquid-liquid extraction, and they emitted orange fluorescence in toluene and green fluorescence in water. The formation of the aggregates was followed by a steep increase in the yield of the CDs that emit blue fluorescence. MW heating for a certain duration was required to increase the yield of the blue-fluorescent CDs. |
|
言語 |
en |
| 出版者 |
|
|
出版者 |
Elsevier |
|
言語 |
en |
| 出版者版へのリンク |
|
|
|
https://doi.org/10.1016/j.carpta.2022.100218 |
| DOI |
|
|
|
識別子タイプ |
DOI |
|
|
関連識別子 |
10.1016/j.carpta.2022.100218 |
| ISSN |
|
|
収録物識別子タイプ |
EISSN |
|
収録物識別子 |
2666-8939 |
| 権利 |
|
|
言語 |
en |
|
権利情報 |
© 2022 The Authors. Published by Elsevier Ltd. |
| 著者版フラグ |
|
|
出版タイプ |
VoR |
|
出版タイプResource |
http://purl.org/coar/version/c_970fb48d4fbd8a85 |
1-s2.0-S2666893922000366-main.pdf (5.9 MB)
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