| アイテムタイプ |
学術雑誌論文 / Journal Article(1) |
| 公開日 |
2025-12-25 |
| タイトル |
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|
タイトル |
Thin polyimide film with high porosity as an alternative substrate for forward osmosis membranes |
|
言語 |
en |
| 言語 |
|
|
言語 |
eng |
| キーワード |
|
|
言語 |
en |
|
主題Scheme |
Other |
|
主題 |
Wastewater treatment |
| キーワード |
|
|
言語 |
en |
|
主題Scheme |
Other |
|
主題 |
FO membrane |
| キーワード |
|
|
言語 |
en |
|
主題Scheme |
Other |
|
主題 |
Pre-concentration |
| キーワード |
|
|
言語 |
en |
|
主題Scheme |
Other |
|
主題 |
PA layer |
| キーワード |
|
|
言語 |
en |
|
主題Scheme |
Other |
|
主題 |
PI film |
| 資源タイプ |
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|
資源タイプ識別子 |
http://purl.org/coar/resource_type/c_6501 |
|
資源タイプ |
journal article |
| 著者 |
Fujioka, Takahiro
Chang, Zhen Hong
Sano, Hideaki
Shintani, Takuji
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| 抄録 |
|
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内容記述タイプ |
Abstract |
|
内容記述 |
Enhancing the substrate properties of forward osmosis (FO) membranes to achieve high water flux can significantly improve the feasibility of FO-based water treatment. This study aimed to evaluate the potential of polyamide (PA) FO membranes fabricated with a thin, highly porous polyimide (PI) film. Among the variable concentrations of m-phenylenediamine (MPD) and trimesoyl chloride (TMC), MPD and TMC at 2.0 and 0.15 wt%, respectively, achieved a water flux of 17.2 L/m2h and reverse salt flux of 1.9 g/m2h when using a 1.0 M NaCl draw solution. Examination of the PA-selective layer formed on the PI substrate revealed cavities and folds with a thickness of 20–40 nm. Interestingly, increasing the hole diameter of the PI substrate from 80 to 300 nm reduced the water permeate flux from 17.2 to 9.8 L/m2h. The structural parameter of the FO membrane developed in this study (193 μm) was comparable to that of most other FO membranes reported in literature. When treating municipal raw sewage, the water flux and reverse salt flux of the developed FO membrane were approximately 60 % higher than those of a commercial cellulose triacetate FO membrane. This study highlights the potential and limitations of PI-based FO membranes for wastewater treatment. |
|
言語 |
en |
| 書誌情報 |
en : Desalination and Water Treatment
巻 324,
p. art. no. 101586,
発行日 2025-12-01
|
| 出版者 |
|
|
出版者 |
Elsevier Inc |
|
言語 |
en |
| ISSN |
|
|
収録物識別子タイプ |
EISSN |
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収録物識別子 |
1944-3986 |
| DOI |
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|
関連タイプ |
isIdenticalTo |
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|
識別子タイプ |
DOI |
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|
関連識別子 |
https://doi.org/10.1016/j.dwt.2025.101586 |
| 権利 |
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|
権利情報 |
© 2025 The Author(s). Published by Elsevier Inc. This is an open access article under the CC BY-NC license (http://creativecommons.org/licenses/by- nc/4.0/). |
|
言語 |
en |
| 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 |
| 引用 |
|
|
内容記述タイプ |
Other |
|
内容記述 |
Desalination and Water Treatment, 324, art. no. 101586; 2025 |
|
言語 |
en |
DWT324_101586.pdf (1.1 MB)
