| アイテムタイプ |
学術雑誌論文 / Journal Article(1) |
| 公開日 |
2026-03-12 |
| タイトル |
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タイトル |
Investigation of the effects of poly(ethylene glycol) on the properties of a novel poly(vinyl alcohol) membrane modified with L-glutamic acid for copper removal |
| 言語 |
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言語 |
eng |
| キーワード |
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主題Scheme |
Other |
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主題 |
Ecology |
| キーワード |
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主題Scheme |
Other |
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主題 |
Environmental chemistry |
| 資源タイプ |
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資源タイプ |
journal article |
| アクセス権 |
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アクセス権 |
open access |
| 著者 |
Truong Hoai, Nam
Ho Le Hanh, Trang
Nguyen Thi Thu, Hang
Nguyen Vo Hong, Ngoc
Ngo Ngoc Bao, An
Vu Tue, Minh
Tran Huy, Trong
Do Kim, Thanh
Doan Thi Hoa, Huyen
Thi Tran, Luyen
吉田, 裕安材
網代, 広治
Tran, Thi Thuy
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| 抄録 |
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内容記述タイプ |
Abstract |
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内容記述 |
In this study, a novel poly(vinyl alcohol) (PVA) membrane modified with L-glutamic acid was synthesized using poly(ethylene glycol) (PEG) as a porogen to increase the surface area and improve Cu(II) adsorption. The phase separation between PVA and PEG induced pore formation, extending from the surface into the interior. PEG also acted as a plasticizer, increasing polymer chain flexibility. The effects of the PEG content on the structural and physicochemical properties were analyzed via water absorption, FT-IR, TGA, XRD, and SEM. The results showed that the incorporation of PEG significantly influenced the material properties. Additionally, adsorption, desorption, kinetic, and isotherm studies were conducted to evaluate the adsorption process. The Cu(II) adsorption capacity increased from 31.8 mg/g to 51.1 mg/g with an initial Cu(II) concentration of 95.0 mg/L. The adsorption equilibrium followed the Freundlich isotherm model, suggesting a heterogeneous surface with various adsorption sites. Kinetic analysis revealed pseudo-second-order kinetics. Desorption studies revealed efficient Cu(II) release in 2 M HNO3 within 150 min, resulting in an 81.9% desorption efficiency. Thermal analysis revealed a lower degradation range (262 °C) compared to that of pure PVA (339 °C), which was attributed to the increased surface area. Additionally, the incorporation of PEG reduced the crystallinity of PVA-c-Glu/PEG. These findings highlight the potential of PEG-modified porous PVA for sustainable heavy metal removal in environmental applications. |
| 書誌情報 |
en : Polymer Journal
巻 58,
号 1,
p. 53-67,
ページ数 15,
発行日 2025-09-01
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| 出版者 |
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出版者 |
Springer Nature |
| ISSN |
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収録物識別子タイプ |
EISSN |
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収録物識別子 |
1349-0540 |
| 出版者版DOI |
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関連タイプ |
isVersionOf |
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識別子タイプ |
DOI |
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関連識別子 |
https://doi.org/10.1038/s41428-025-01093-x |
| 出版者版URI |
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関連タイプ |
isVersionOf |
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識別子タイプ |
URI |
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関連識別子 |
https://www.nature.com/articles/s41428-025-01093-x |
| 権利 |
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権利情報 |
Copyright © 2025, The Author(s), under exclusive licence to The Society of Polymer Science, Japan. This version of the article has been accepted for publication, after peer review (when applicable) and is subject to Springer Nature’s AM terms of use, but is not the Version of Record and does not reflect post-acceptance improvements, or any corrections. The Version of Record is available online at: http://dx.doi.org/10.1038/s41428-025-01093-x . |
| 著者版フラグ |
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出版タイプ |
AM |
| 助成情報 |
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助成機関名 |
Ministry of Education and Training of Vietnam |
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研究課題番号 |
B2024-BKA-05 |
fulltext (2.1 MB)
