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2009 Fiscal Year Final Research Report

Novel adsorbents for environmental remediation by using nano-materials as the functioning sites

Research Project

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Project/Area Number 18310049
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Research Field Environmental technology/Environmental materials
Research InstitutionHokkaido University

Principal Investigator

FUGETSU Bunshi  Hokkaido University, 大学院・地球環境科学研究院, 教授 (40281844)

Project Period (FY) 2006 – 2009
Keywords環境修復技術
Research Abstract

In this study, novel adsorbents using nano-sized materials as the functioning sites for elimination of toxic chemicals from contaminated environmental samples have been established. First, as-received carbon nanotubes (CNTs) were used as absorbing sites and the study was focusing on evaluating the mechanism of absorbing volatile organic compounds (VOCs) with 23 VOCs as the targets. CNTs showed high selectivity and high affinity for absorbing aromatic VOCs (benzene, toluene, m-xylene, p-xylene, o-xylene, and p-dichlorobenezen). A model based on Fukui's frontier theory was proposed for explaining the adsorption mechanism. Next, CNTs of agglomerated forms were dispersed into individual tubes. The resultant dispersed-CNTs were inserted into cavities of diatomite to form composites of diatomite/CNTs. These composites were finally immobilized onto the cell walls of flexible polyurethane foams (PUF) through an in situ PUF formation process to produce the foam-like CNT-based adsorbent. Water-s … More oluble organic dyes were selected as the targeted chemicals for studying the adsorptive capabilities of the foam-like CNT-based adsorbent. The foam-like CNT-based adsorbents were found to have higher adsorptive capacities than the CNT agglomerates for all five dyes ; in addition, they are macro-sized, durable, flexible, hydrophilic and easy to use. Adsorption isotherms plotted based on the Langmuir equation gave linear results, suggesting that the foam-like CNT-based adsorbent functioned in the Langmuir adsorption manner. Moreover, in this study, double-helix DNA and sodium alginate, the naturally occurred nano-sized materials were also used as the functioning sites for building up the novel adsorbents for elimination of toxic chemicals. A novel approach by encapsulation of the absorbing sites based on in situation formation of polyurethane foams was developed. The adsorbent with DNA as the functioning site has shown high ability for absorbing chemicals of planar structures, such ethidium bromide based on intercalation interactions. While, the adsorbents with sodium alginate as the functioning sites has shown high selectivity for lead (II) ions with the chelating interaction as the dominating absorbing mechanism. Finally, in this study, evaluation of the possible toxicity of CNTs on rice cells and on Arabidopsis T87 suspension cells has also been carried out. Less

  • Research Products

    (20 results)

All 2010 2009 2008 2007 2006

All Journal Article (11 results) (of which Peer Reviewed: 11 results) Presentation (8 results) Patent(Industrial Property Rights) (1 results)

  • [Journal Article] A novel adsorbent obtained by inserting carbon nanotubes into cavities of diatomite and applications for organic dye elimination from contaminated water2010

    • Author(s)
      H. Yu, B. Fugetsu
    • Journal Title

      Journal of Hazardous Materials 177

      Pages: 138-145

    • Peer Reviewed
  • [Journal Article] Electrochemical detection of ethidium bromide by using pure single-walled carbon nanotubes sheet as the electrode2010

    • Author(s)
      J. He, B. Fugetsu, S. Tanaka
    • Journal Title

      Journal of Electroanalytical Chemistry 638

      Pages: 46-50

    • Peer Reviewed
  • [Journal Article] Studies on toxicity of multi-walled carbon nanotubes onarabidopsis T87 suspension cells2009

    • Author(s)
      C. Lin, B. Fugetsu, B. Xu, F. Watari
    • Journal Title

      Journal of Hazardous Materials 170

      Pages: 578-583

    • Peer Reviewed
  • [Journal Article] Studies on toxicity of multi-walled carbon nanotubes on suspension rice cells2009

    • Author(s)
      X. Tang, C. Lin, B Fugetsu
    • Journal Title

      47

      Pages: 3479-3487

    • Peer Reviewed
  • [Journal Article] 有害化学物質吸着のための二重らせん構造を保持したDNA/ボリウレタンフォーム複合材料の開発2009

    • Author(s)
      曽根弘昭, 古月文志, 田中俊逸
    • Journal Title

      分析化学 58

      Pages: 7-13

    • Peer Reviewed
  • [Journal Article] Selective elimination lead (II) ions by alginate/polyurethane composite foams2009

    • Author(s)
      H. Sone, B. Fugetsu, S. Tanaka
    • Journal Title

      Journal of Hazardous Materials 162

      Pages: 423-429

    • Peer Reviewed
  • [Journal Article] Use of ultra-thin cross-linked polymer films for preparation of stable mono-dispersed carbon nanotubes2008

    • Author(s)
      H. Yu, X. Chen, K. Tsujii, B. Fugetsu
    • Journal Title

      Materials Letters 62

      Pages: 4050-4050

    • Peer Reviewed
  • [Journal Article] Affinity-Based Elimination of Aromatic VOCs by Highly Crystalline Multi-Walled Carbon Nanotubes2008

    • Author(s)
      H. Sone, B. Fugetsu. Tsukada, M. Endo
    • Journal Title

      Talanta 74

      Pages: 1265-1270

    • Peer Reviewed
  • [Journal Article] Multi-walled Carbon Nanotubes Interact with Cultured Rice Cells : Evidence of a Self-defense Response2007

    • Author(s)
      X. Tan, B. Fugetsu
    • Journal Title

      Journal of Biomedical Nanotechnology 3

      Pages: 285-288

    • Peer Reviewed
  • [Journal Article] Voltammetric Behavior and determination of 17 β-estradiol at multi-walled carbon nanotube-nafion modified glassy carbon electrode2006

    • Author(s)
      N, Terui, B. Fugetsu, S. Tanaka
    • Journal Title

      Analytical Sciences 22

      Pages: 895-898

    • Peer Reviewed
  • [Journal Article] Photo-degradation of humic substances on MWCNT/Nanotubular-TiO2 composites2006

    • Author(s)
      C. Zhu, Y Zhou, H. YU, T. Nomura, B. Fugetsu
    • Journal Title

      Chemistry Letters 35

      Pages: 890-891

    • Peer Reviewed
  • [Presentation] ホウ素複合型ナノグラファイトを用いる電気化学センサーによる生体試料中尿酸の選択的検出2009

    • Author(s)
      賀建軍, 古月文志, 田中俊逸
    • Organizer
      日本分析化学会第58年会
    • Place of Presentation
      札幌
    • Year and Date
      2009-09-24
  • [Presentation] カーボンナノチューブの分散技術と廃液処理2007

    • Author(s)
      曽根弘昭, 古月文志
    • Organizer
      日本分析化学会第56年会
    • Place of Presentation
      徳島
    • Year and Date
      2007-09-19
  • [Presentation] カーボンナノチューブを吸着剤とした揮発性有機物質の選択除去2007

    • Author(s)
      曽根弘昭, 古月文志
    • Place of Presentation
      長崎
    • Year and Date
      2007-07-27
  • [Presentation] カーボンナノチューブを吸着剤とした揮発性有機物質の選択除去2007

    • Author(s)
      曽根弘昭, 古月文志
    • Organizer
      第16回環境化学討論会
    • Place of Presentation
      北九州
    • Year and Date
      2007-06-20
  • [Presentation] カーボンナノチューブを吸着剤とした水中揮発性有機物質の選択除去2007

    • Author(s)
      曽根弘昭, 古月文志
    • Organizer
      日本分析化学会北海道支部2007年冬季研究発表会
    • Place of Presentation
      札幌
    • Year and Date
      2007-02-06
  • [Presentation] 重金属除去ポリウレタンフォームの試作と評価2006

    • Author(s)
      曽根弘昭, 斉藤正一郎, 野村朋子, 古月文志
    • Organizer
      日本分析化学会第55年会
    • Place of Presentation
      大阪
    • Year and Date
      2006-09-22
  • [Presentation] Carbon Nanotubes as Adsorbents for Affinity-Based Elimination of Volatile Organic Compounds2006

    • Author(s)
      H. Sone, B. Fugetsu
    • Organizer
      北海道大学国際シンポジウム「持続可能な開発」
    • Place of Presentation
      札幌
    • Year and Date
      2006-08-07
  • [Presentation] カーボンナノチューブを用いた有機物吸着剤の試作と評画価2006

    • Author(s)
      曽根弘昭, 古月文志
    • Organizer
      第15回環境化学討論会
    • Place of Presentation
      仙台
    • Year and Date
      2006-06-20
  • [Patent(Industrial Property Rights)] 重金属捕捉剤2006

    • Inventor(s)
      曽根弘昭, 古月文志, 田中俊逸, 藤原直哉, 小笠原竜二, 斎藤正一郎
    • Industrial Property Rights Holder
      北海道大学
    • Industrial Property Number
      特願2006-181155 (公開中)
    • Filing Date
      2006-06-30

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Published: 2011-06-18   Modified: 2016-04-21  

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