Photochemical decomposition of pentafluoropropionic acid to fluoride ions with a water-soluble heteropolyacid photocatalyst

Hisao Hori, Yuko Takano, Kazuhide Koike, Shuzo Kutsuna, Hisahiro Einaga, Takashi Ibusuki

研究成果: ジャーナルへの寄稿記事

38 引用 (Scopus)

抄録

Pentafluoropropionic acid (CF3CF2COOH; PFPA) was decomposed to F- and CO2 with a water-soluble homogeneous photocatalyst, H3PW12O40. This is the first example of a photocatalytic system for C-F bond cleavage in a perfluorinated acid compound having both CF3- and -CF2- units. The catalytic reaction proceeds in water at room temperature under irradiation with UV-Vis light in the presence of oxygen. Gas chromatography-mass spectrometry (GC-MS) showed no trace of environmentally undesirable species such as CF 4, which is often observed in the decomposition of perfluorinated compounds by extremely high energy techniques such as electron beam irradiation. In addition to F- ions, small amounts of trifluoroacetic acid (TFA) were detected in the reaction solution. The proposed reaction mechanism involves redox reactions of PFPA and TFA with the catalyst.

元の言語英語
ページ(範囲)333-340
ページ数8
ジャーナルApplied Catalysis B: Environmental
46
発行部数2
DOI
出版物ステータス出版済み - 11 10 2003

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Trifluoroacetic acid
Trifluoroacetic Acid
Photocatalysts
Fluorides
fluoride
Irradiation
Ions
decomposition
Decomposition
Acids
ion
Water
Redox reactions
acid
Ultraviolet radiation
Gas chromatography
Mass spectrometry
Electron beams
irradiation
Oxygen

All Science Journal Classification (ASJC) codes

  • Catalysis
  • Environmental Science(all)
  • Process Chemistry and Technology

これを引用

Photochemical decomposition of pentafluoropropionic acid to fluoride ions with a water-soluble heteropolyacid photocatalyst. / Hori, Hisao; Takano, Yuko; Koike, Kazuhide; Kutsuna, Shuzo; Einaga, Hisahiro; Ibusuki, Takashi.

:: Applied Catalysis B: Environmental, 巻 46, 番号 2, 10.11.2003, p. 333-340.

研究成果: ジャーナルへの寄稿記事

Hori, Hisao ; Takano, Yuko ; Koike, Kazuhide ; Kutsuna, Shuzo ; Einaga, Hisahiro ; Ibusuki, Takashi. / Photochemical decomposition of pentafluoropropionic acid to fluoride ions with a water-soluble heteropolyacid photocatalyst. :: Applied Catalysis B: Environmental. 2003 ; 巻 46, 番号 2. pp. 333-340.
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abstract = "Pentafluoropropionic acid (CF3CF2COOH; PFPA) was decomposed to F- and CO2 with a water-soluble homogeneous photocatalyst, H3PW12O40. This is the first example of a photocatalytic system for C-F bond cleavage in a perfluorinated acid compound having both CF3- and -CF2- units. The catalytic reaction proceeds in water at room temperature under irradiation with UV-Vis light in the presence of oxygen. Gas chromatography-mass spectrometry (GC-MS) showed no trace of environmentally undesirable species such as CF 4, which is often observed in the decomposition of perfluorinated compounds by extremely high energy techniques such as electron beam irradiation. In addition to F- ions, small amounts of trifluoroacetic acid (TFA) were detected in the reaction solution. The proposed reaction mechanism involves redox reactions of PFPA and TFA with the catalyst.",
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AU - Hori, Hisao

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AU - Einaga, Hisahiro

AU - Ibusuki, Takashi

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N2 - Pentafluoropropionic acid (CF3CF2COOH; PFPA) was decomposed to F- and CO2 with a water-soluble homogeneous photocatalyst, H3PW12O40. This is the first example of a photocatalytic system for C-F bond cleavage in a perfluorinated acid compound having both CF3- and -CF2- units. The catalytic reaction proceeds in water at room temperature under irradiation with UV-Vis light in the presence of oxygen. Gas chromatography-mass spectrometry (GC-MS) showed no trace of environmentally undesirable species such as CF 4, which is often observed in the decomposition of perfluorinated compounds by extremely high energy techniques such as electron beam irradiation. In addition to F- ions, small amounts of trifluoroacetic acid (TFA) were detected in the reaction solution. The proposed reaction mechanism involves redox reactions of PFPA and TFA with the catalyst.

AB - Pentafluoropropionic acid (CF3CF2COOH; PFPA) was decomposed to F- and CO2 with a water-soluble homogeneous photocatalyst, H3PW12O40. This is the first example of a photocatalytic system for C-F bond cleavage in a perfluorinated acid compound having both CF3- and -CF2- units. The catalytic reaction proceeds in water at room temperature under irradiation with UV-Vis light in the presence of oxygen. Gas chromatography-mass spectrometry (GC-MS) showed no trace of environmentally undesirable species such as CF 4, which is often observed in the decomposition of perfluorinated compounds by extremely high energy techniques such as electron beam irradiation. In addition to F- ions, small amounts of trifluoroacetic acid (TFA) were detected in the reaction solution. The proposed reaction mechanism involves redox reactions of PFPA and TFA with the catalyst.

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