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Adsorption-desorption mediated separation of low concentrated D2O from water with hydrophobic activated carbon fiber.

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Title: Adsorption-desorption mediated separation of low concentrated D2O from water with hydrophobic activated carbon fiber.
Authors: Ono, Yuji1, Futamura, Ryusuke2, Hattori, Yoshiyuki3, Sakai, Toshio1, Kaneko, Katsumi2 kkaneko@shinshu-u.ac.jp
Source: Journal of Colloid & Interface Science. Dec2017, Vol. 508, p14-17. 4p.
Subjects: Activated carbon, Carbon fibers, Adsorption (Chemistry), Isotopes, Deuterium
Abstract: The adsorption and desorption of D 2 O on hydrophobic activated carbon fiber (ACF) occurs at a smaller pressure than the adsorption and desorption of H 2 O. The behavior of the critical desorption pressure difference between D 2 O and H 2 O in the pressure range of 1.25–1.80 kPa is applied to separate low concentrated D 2 O from water using the hydrophobic ACF, because the desorption branches of D 2 O and H 2 O drop almost vertically. The deuterium concentration of all desorbed water in the above pressure range is lower than that of water without adsorption-treatment on ACF. The single adsorption-desorption procedure on ACF at 1.66 kPa corresponding to the maximum difference of adsorption amount between D 2 O and H 2 O reduced the deuterium concentration of desorbed water to 130.6 ppm from 143.0 ppm. Thus, the adsorption–desorption procedure of water on ACF is a promising separation and concentration method of low concentrated D 2 O from water. [ABSTRACT FROM AUTHOR]
Copyright of Journal of Colloid & Interface Science is the property of Academic Press Inc. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Engineering Source
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DbLabel: Engineering Source
An: 125176650
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  Data: Adsorption-desorption mediated separation of low concentrated D2O from water with hydrophobic activated carbon fiber.
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  Data: <searchLink fieldCode="AR" term="%22Ono%2C+Yuji%22">Ono, Yuji</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Futamura%2C+Ryusuke%22">Futamura, Ryusuke</searchLink><relatesTo>2</relatesTo><br /><searchLink fieldCode="AR" term="%22Hattori%2C+Yoshiyuki%22">Hattori, Yoshiyuki</searchLink><relatesTo>3</relatesTo><br /><searchLink fieldCode="AR" term="%22Sakai%2C+Toshio%22">Sakai, Toshio</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Kaneko%2C+Katsumi%22">Kaneko, Katsumi</searchLink><relatesTo>2</relatesTo><i> kkaneko@shinshu-u.ac.jp</i>
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  Data: <searchLink fieldCode="JN" term="%22Journal+of+Colloid+%26+Interface+Science%22">Journal of Colloid & Interface Science</searchLink>. Dec2017, Vol. 508, p14-17. 4p.
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  Data: <searchLink fieldCode="DE" term="%22Activated+carbon%22">Activated carbon</searchLink><br /><searchLink fieldCode="DE" term="%22Carbon+fibers%22">Carbon fibers</searchLink><br /><searchLink fieldCode="DE" term="%22Adsorption+%28Chemistry%29%22">Adsorption (Chemistry)</searchLink><br /><searchLink fieldCode="DE" term="%22Isotopes%22">Isotopes</searchLink><br /><searchLink fieldCode="DE" term="%22Deuterium%22">Deuterium</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: The adsorption and desorption of D 2 O on hydrophobic activated carbon fiber (ACF) occurs at a smaller pressure than the adsorption and desorption of H 2 O. The behavior of the critical desorption pressure difference between D 2 O and H 2 O in the pressure range of 1.25–1.80 kPa is applied to separate low concentrated D 2 O from water using the hydrophobic ACF, because the desorption branches of D 2 O and H 2 O drop almost vertically. The deuterium concentration of all desorbed water in the above pressure range is lower than that of water without adsorption-treatment on ACF. The single adsorption-desorption procedure on ACF at 1.66 kPa corresponding to the maximum difference of adsorption amount between D 2 O and H 2 O reduced the deuterium concentration of desorbed water to 130.6 ppm from 143.0 ppm. Thus, the adsorption–desorption procedure of water on ACF is a promising separation and concentration method of low concentrated D 2 O from water. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Journal of Colloid & Interface Science is the property of Academic Press Inc. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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RecordInfo BibRecord:
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      – Type: doi
        Value: 10.1016/j.jcis.2017.08.016
    Languages:
      – Code: eng
        Text: English
    PhysicalDescription:
      Pagination:
        PageCount: 4
        StartPage: 14
    Subjects:
      – SubjectFull: Activated carbon
        Type: general
      – SubjectFull: Carbon fibers
        Type: general
      – SubjectFull: Adsorption (Chemistry)
        Type: general
      – SubjectFull: Isotopes
        Type: general
      – SubjectFull: Deuterium
        Type: general
    Titles:
      – TitleFull: Adsorption-desorption mediated separation of low concentrated D2O from water with hydrophobic activated carbon fiber.
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            NameFull: Ono, Yuji
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            NameFull: Futamura, Ryusuke
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            NameFull: Hattori, Yoshiyuki
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            NameFull: Sakai, Toshio
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            NameFull: Kaneko, Katsumi
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            – D: 15
              M: 12
              Text: Dec2017
              Type: published
              Y: 2017
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              Value: 508
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            – TitleFull: Journal of Colloid & Interface Science
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