Thermo-Responsive Polymer-Mediated Extraction Followed by Flotation for the Removal of Poly(aromatic hydrocarbons) from Gases
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- Saitoh Tohru
- Department of Molecular Design and Engineering, Graduate School of Engineering, Nagoya University
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- Mizutani Koji
- Department of Molecular Design and Engineering, Graduate School of Engineering, Nagoya University
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- Hiraide Masataka
- Department of Molecular Design and Engineering, Graduate School of Engineering, Nagoya University
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A simple and efficient gas decontamination system has been developed. The method is based on the aeration of an aqueous solution of a thermo-responsive polymer and polymer-mediated extraction followed by flotation. Polyaromatic hydrocarbons (PAHs) in gas phase were dissolved by aeration through the aqueous solution of a water-soluble polymer, poly(N-isopropylacrylamide) [PNIPAAm], containing 0.1 mol dm−3 sodium nitrate and 1% (v/v) ethanol. The efficiency of the dissolution increased with increasing PNIPAAm concentration. PAHs consisting of more than 3 aromatic rings were quantitatively collected in the polymer solution, while the collection of volatile naphthalene was insufficient. Subsequently, on heating the polymer solution to 50 °C, the polymer media incorporating PAHs formed precipitates. The precipitates were floated to the surface of water by bubbling. Hydrophobic PAHs, such as pyrene and benzo[a]pyrene, were highly concentrated into the polymer phase having a very small volume.
収録刊行物
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- Bulletin of the Chemical Society of Japan
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Bulletin of the Chemical Society of Japan 79 (1), 95-99, 2006
公益社団法人 日本化学会
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詳細情報 詳細情報について
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- CRID
- 1390282679104156544
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- NII論文ID
- 130004151997
- 10017170185
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- NII書誌ID
- AA00580132
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- ISSN
- 13480634
- 00092673
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- NDL書誌ID
- 7769361
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- 本文言語コード
- en
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- データソース種別
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- JaLC
- NDL
- Crossref
- CiNii Articles
- KAKEN
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- 抄録ライセンスフラグ
- 使用不可
