Evaluation of Adsorption Characteristics of a Fibrous Adsorbent Containing Zwitter-Ionic Functional Group, Targeting Organic Acids

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  • NAKAZAWA Akira
    Institute of Medical, Pharmaceutical and Health Sciences, Faculty of Pharmaceutical Sciences, Kanazawa University, Japan
  • TANG Ning
    Institute of Nature and Environmental Technology, Kanazawa University, Kanazawa-shi, Japan
  • INOUE Yoshinori
    College of Bioscience and Biotechnology, Chubu University, Kasugai-shi, Japan
  • KAMICHATANI Waka
    Venture Businness Laboratory, Kanazawa University, Kanazawa-shi, Japan
  • KATOH Toshifumi
    AdSep Business Promotion Dep., Nippon Filcon Co., Ltd., Japan
  • SAITO Mitsuru
    AdSep Business Promotion Dep., Nippon Filcon Co., Ltd., Japan
  • OBARA Kenji
    Research & Development Center, Nippon Filcon Co., Ltd., Japan
  • TORIBA Akira
    Institute of Medical, Pharmaceutical and Health Sciences, Faculty of Pharmaceutical Sciences, Kanazawa University, Japan
  • HAYAKAWA Kazuichi
    Institute of Nature and Environmental Technology, Kanazawa University, Kanazawa-shi, Japan

Bibliographic Information

Other Title
  • 両性イオン型繊維状吸着材の有機酸に対する吸着特性評価
  • リョウセイ イオンガタ センイジョウ キュウチャクザイ ノ ユウキサン ニ タイスル キュウチャク トクセイ ヒョウカ

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Abstract

<p>Diallylamine-maleic acid copolymer (DAM)-nonwoven fabric (DAM-f), a fibrous adsorbent, contains DAM with zwitter-ionic functional groups and forms a hydration layer on the surface. The aim of this report was to evaluate the adsorption selectivity of DAM-f to semi-volatile organic acid (C1-C5). In the aqueous phase, formic acid dissolved in the hydration layer bound to the imino group of DAM-f due to anion exchange interaction. In the gas phase, the adsorption amounts of organic acids increased with the exposure time. Moreover, the adsorption rate constants correlated with the air/water partition coefficients (log Kaw) for formic acid, propionic acid, butyric acid, valeric acid and isovaleric acid, except for acetic acid. These results indicate that DAM-f is highly selective to hydrophilic compounds which easily move from the air to the hydration layer of DAM-f.</p>

Journal

  • Journal of UOEH

    Journal of UOEH 39 (1), 69-74, 2017

    The University of Occupational and Environmental Health, Japan

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