Creation of Highly Efficient Environmental Remediation Materials using Metabolic-functional Photocatalysts

2014 Fiscal Year Final Research Report

• Project/Area Number: 24310063
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Partial Multi-year Fund
• Section: 一般
• Research Field: Environmental technology/Environmental materials
• Research Institution: Kanagawa Academy of Science and Technology
• Principal Investigator: TAKAGI Katsuhiko 公益財団法人神奈川科学技術アカデミー, イノベーションセンター、高度計測センター, 研究顧問兼プロジェクトリーダー (60023264)
• Co-Investigator(Kenkyū-buntansha): SAKAI Munetoshi 山口東京理科大学, 工学部, 助教 (00392928) ; NAKATA Kazuya 東京理科大学, 理工学部, 准教授 (70514115) ; KATSUMATA Kenichi 東京理科大学, 研究推進機構, 准教授 (70550242)
• Project Period (FY): 2012-04-01 – 2015-03-31
• Keywords: モノリス型チタニア光触媒 / 新陳代謝性光触媒 / 銅、窒素ドープ型チタニア / ソルボサーマル法 / ナノチューブチタニア / 自己エッチング / PEG添加効果

Outline of Final Research Achievements

Copper or Nitrogen-doped TiO2 powder samples with a monolith structure were synthesized and evaluated for their photocatalytic activities. The samples were modified into a nanotube structure (TNT) by a solvo-thermal method, leading to an improvement in their photocatalytic properties. Without TNT modification, light scattering caused the TiO2 powder samples to become opaque so that a preparation method for a monolith-structured, transparent organic membrane was established for use as a self-cleaning membrane. Sustainability of their transparency was confirmed by weathering tests of the metabolic function and durability of the adsorbed dyes. Moreover, the monolith structure of the TiO2 powder surfaces was investigated in detail by neutron scattering spectroscopic analysis. Transparent and self-etching monolith TiO2 membranes were also prepared by the optimal addition of PEG.

Free Research Field

有機-無機ハイブリッド光化学反応の研究、有機系太陽電池の性能評価法の確立