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  1. 工学部
  1. 工学部
  2. 学術雑誌掲載論文 (工学部)

Properties of microcapsules containing PC-88A with conneccted spherical pores for Zn(II) extraction

http://hdl.handle.net/10458/00010125
http://hdl.handle.net/10458/00010125
ea46a9b8-9090-4548-a6b2-86c8038ba526
名前 / ファイル ライセンス アクション
No262_ISEC2011_cap08_p206.pdf 本文 (804.4 kB)
Item type 会議発表論文 / Conference Paper(1)
公開日 2021-01-18
タイトル
タイトル Properties of microcapsules containing PC-88A with conneccted spherical pores for Zn(II) extraction
言語 en
言語
言語 eng
資源タイプ
資源タイプ識別子 http://purl.org/coar/resource_type/c_5794
資源タイプ conference paper
著者 塩盛, 弘一郎

× 塩盛, 弘一郎

WEKO 5570
e-Rad 80235506

en Shiomori, Koichiro

ja 塩盛, 弘一郎

ja-Kana シオモリ, コウイチロウ


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Matsushita, Asuka

× Matsushita, Asuka

WEKO 33268

en Matsushita, Asuka

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Sana, Takashi

× Sana, Takashi

WEKO 6242

en Sana, Takashi

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Kiyoyama, Shiro

× Kiyoyama, Shiro

WEKO 5571

en Kiyoyama, Shiro

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Yoshida, Masahiro

× Yoshida, Masahiro

WEKO 5572

en Yoshida, Masahiro

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内容記述タイプ Abstract
内容記述 In order to develop an effective extraction process using microcapsules containing extractants, it will be important to increase the surface area of the reaction interface and the diffusibility of the extraction complex in the microcapsules. Microcapsules with large interconnected-spherical pores containing 2-ethylhexyl phosphonic acid mono-2-ethylhexyl ester (PC-88A), which is an effective extractant of Zn(II), were prepared by in situ polymerisation from W/O/W emulsions. The large interconnected-spherical pores are open to the outside of the microcapsules and can be freely accessed by water external to the microcapsules. Therefore, the microcapsules with large interconnected-spherical pores are considered to be effective for the microencapsulation of extractants and provide a large surface area because of the many interconnected pores. Divinylbenzene was used as the wall material and polymerised in the organic phase by free radical polymerisation. The microcapsules were successfully prepared. The pore size and the diameter of the microcapsules increased with increasing NaCl concentration in the inner aqueous phase. The diameter of the microcapsules was almost constant at around 230 μm, independent of the concentration of PC-88A in the organic phase. The entrapment efficiency of PC-88A in the microcapsules was higher than 80% in all preparation conditions. The extraction of Zn(II) using microcapsules containing PC-88A was sharply increased at pH higher than 2.0. Zn(II) extracted in the microcapsules was successfully back-extracted at pH lower than 2.0. It was confirmed that two molecules of PC-88A reacted with one Zn(II) ion by quantitative analysis of the relationship between the maximum amounts of Zn(II) extracted and the amount of PC-88A encapsulated in the microcapsules. The extraction rate of Zn(II) was accelerated by the formation of interconnected-spherical pores inside the microcapsules.
言語 en
書誌情報 en : Proc. International Solvent Extraction Conference 2011

発行日 2011-10
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
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Ver.2 2023-07-29 08:37:52.300587
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塩盛, 弘一郎, Matsushita, Asuka, Sana, Takashi, Kiyoyama, Shiro, Yoshida, Masahiro, 2011, Properties of microcapsules containing PC-88A with conneccted spherical pores for Zn(II) extraction.

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