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ID 15019
本文ファイル
著者
Kan-no, Takehiro
Asaeda, Masashi
キーワード
titanium oxide, photocatalysis
catalytic membrane reactor
methanol
platinum
photo-deposition
NDC
化学
抄録(英)
Porous titanium oxide membranes with pore sizes in the range of 2.5-22 nm were prepared by a sol-gel procedure, and were applied for decomposition of methanol and ethanol as model volatile organic compounds (VOCs) in a photocatalytic membrane reactor, where oxidation reaction occurs both on the surface and inside the porous TiO2 membrane while reactants are permeating via one-pass flow. Methanol was completely photo-oxidized by black-light irradiation to CO2 when methanol at a concentration of 100 ppm was used at a feed flow rate of 500 × 10-6 m3/min, but the conversion decreased when the MeOH concentration in the feed was increased. Pt-modification was carried out by photo-deposition, and led to a decrease in pore diameter. Using Pt-modified membranes, a nearly complete oxidation of methanol up to 10,000 ppm at a feed flow rate of 500 × 10-6 m3/min was observed. Thus, such membranes would be effective for purifying a permeate stream after one-pass permeation through the TiO2 membranes. The decomposition of ethanol is also discussed.
掲載誌名
Journal of Membrane Science
280巻
1-2号
開始ページ
156
終了ページ
162
出版年月日
2006-09
出版者
Elsevier B.V.
ISSN
0376-7388
NCID
出版者DOI
言語
英語
NII資源タイプ
学術雑誌論文
広大資料タイプ
学術雑誌論文
DCMIタイプ
text
フォーマット
application/pdf
著者版フラグ
author
権利情報
Copyright (c) 2006 2006 Elsevier B.V.
関連情報URL(IsVersionOf)
http://dx.doi.org/10.1016/j.memsci.2006.01.008
部局名
工学研究科