| Project/Area Number |
13558075
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Section | 展開研究 |
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| Research Field |
環境保全
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| Research Institution | KYUSHU UNIVERSITY |
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Principal Investigator |
KITAOKA Takuya KYUSHU UNIVERSITY, Faculty of Agriculture, Associate Professor, 大学院・農学研究院, 助教授 (90304766)
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| Co-Investigator(Kenkyū-buntansha) |
WATANABE Yasuhiko Kurita Co.Ltd., R & D Center, Chief Researcher, 開発本部技術開発センター, 主席研究員
WARIISHI Hiroyuki KYUSHU UNIVERSITY, Faculty of Agriculture, Professor, 大学院・農学研究院, 教授 (50253513)
田中 浩雄 九州大学, 大学院・農学研究院, 教授 (20038243)
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| Project Period (FY) |
2001 – 2003
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| Project Status |
Completed (Fiscal Year 2003)
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| Budget Amount *help |
¥13,400,000 (Direct Cost: ¥13,400,000)
Fiscal Year 2003: ¥2,500,000 (Direct Cost: ¥2,500,000)
Fiscal Year 2002: ¥4,300,000 (Direct Cost: ¥4,300,000)
Fiscal Year 2001: ¥6,600,000 (Direct Cost: ¥6,600,000)
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| Keywords | Titanium Dioxide / Zeolite / Solid Catalyst / Catalyst Paper / Synergistic Effect / Capturing Effect / Paper Void Effect / Environmental Cleanup / 協奏的分解効果 / 金属酸化物 / 複合シート成型 / 大気・室内環境浄化 / 水環境浄化 / 抄紙システム / 無機シート成型 / 強度付与バインダー / VOC分解 / NOx分解 / 吸着-分解協奏効果 |
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| Research Abstract |
Titanium dioxide(TiO_2) photocatalyst has attracted much attention for the effective cleanup of various environmental pollutants. However, its practical application is limited because of the difficulty to deal with small TiO_2 particles. Hence, recent research has been directed at immobilizing TiO_2 powders onto a supporting material. This research provided a lot of practical, interesting results for the preparation and environmental applications of paper-like composites containing TiO_2 and other powder materials which were supported on inorganic fiber matrix. The ceramic fiber/TiO_2 composites were successfully prepared by a papermaking technique with a dual polyelectrolyte system whereby high formability and productivity were achieved. Indoor/atmospheric pollutants and endocrine-disrupting chemical in water were photocatalytically decomposed by the TiO_2 composites under weak UV irradiation. Tailoring the combination of TiO_2 and zeolite adsorbent in the composites accelerated the photodegradation of various pollutants. Catalyst mixture in and void structure of paper composites made a great contribution to the enhancement of photocatalytic efficiency from a practical viewpoint. The porous, flexible and easy-handling fiber/TiO_2 composites would be expected as a promising material with effective photocatalytic performance for environmental applications.
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