| Item type |
デフォルトアイテムタイプ_（フル）(1) |
| 公開日 |
2023-03-18 |
| タイトル |
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|
タイトル |
Fabrication of hierarchically porous monolithic layered double hydroxide composites with tunable microcages for effective oxyanion adsorption |
|
言語 |
en |
| 作成者 |
Tarutani, Naoki
Tokudome, Yasuaki
Fukui, Megu
Nakanishi, Kazuki
Takahashi, Masahide
|
| アクセス権 |
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|
アクセス権 |
open access |
|
アクセス権URI |
http://purl.org/coar/access_right/c_abf2 |
| 権利情報 |
|
|
権利情報 |
This is not the published version. Please cite only the published version. この論文は出版社版ではありません。引用の際には出版社版をご確認、ご利用ください。 |
| 内容記述 |
|
|
内容記述 |
Removal of toxic substances from industrial wastes is an urgent issue for realizing a sustainable society. Layered double hydroxides (LDHs) are expected to be an effective adsorbent for toxic anions, especially oxyanions, because of their high anion adsorption capacity and reusability. Monolithic LDH materials with rational meso- and macropores are expected to show high adsorption capacity/rate towards targeted toxic substances owing to their large specific surface area and liquid transport property. Besides fabricating hierarchical pores, size control of microcages in LDH crystals is required to achieve selective removal of oxyanions. Herein, we prepared hierarchically porous monolithic LDH composites with tunable microcages by changing the combination of cationic species in the LDH crystal. Monolithic Mg-, Mn-, Fe-, Co- and Ni-Al type LDH composites with hierarchical pores were successfully prepared via an epoxide-mediated sol-gel reaction accompanying with phase separation. The monolithic Co-Al type LDH composite with hierarchical pores exhibited the highest CrO42− adsorption capacity because its microcage size well fits the CrO42− size. Also Co-Al type LDH composite adsorbed different oxyanions, depending on their affinity with the LDH, in SO42−, CrO42−, MoO42− and HVO42− co-existing solution. The pore size controllability in discrete length-scales of micrometers, nanometers, and picometers offers LDHs with tailored surface chemistries and physical properties desirable for effective and selective oxyanion adsorption. |
|
言語 |
en |
| 内容記述 |
|
|
内容記述タイプ |
Other |
|
内容記述 |
The study was supported by JSPS KAKENHI (No. 26288108, 26630322). |
| 内容記述 |
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|
内容記述タイプ |
Other |
|
内容記述 |
This work is partially supported by the Kazuchika Okura Memorial Foundation and the Hosokawa Powder Technology Foundation. |
| 出版者 |
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|
出版者 |
Royal Society of Chemistry |
| 言語 |
|
|
言語 |
eng |
| 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 |
| 出版タイプ |
|
|
出版タイプ |
AO |
|
出版タイプResource |
http://purl.org/coar/version/c_b1a7d7d4d402bcce |
| 関連情報 |
|
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|
識別子タイプ |
DOI |
|
|
関連識別子 |
10.1039/C5RA05942A |
| 関連情報 |
|
|
|
識別子タイプ |
DOI |
|
|
関連識別子 |
https://doi.org/10.1039/C5RA05942A |
| 収録物識別子 |
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|
収録物識別子タイプ |
ISSN |
|
収録物識別子 |
2046-2069 |
| 開始ページ |
|
|
開始ページ |
57187 |
| 書誌情報 |
en : RSC Advances
巻 5,
p. 57187-57192,
発行日 2015-06-23
|
| 旧ID |
53536 |
RSCAd_5_57187.pdf (584.1 KB)
