Development of photocatalyst for rapid removal of ammonia from indoor air

2014 Fiscal Year Final Research Report

• Project/Area Number: 24710090
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: Environmental technology/Environmental materials
• Research Institution: National Institute for Materials Science (2014); Tokyo University of Science (2012-2013)
• Principal Investigator: YANAGIDA Sayaka 独立行政法人物質・材料研究機構, 高分子材料ユニット, NIMSポスドク研究員 (40579794)
• Project Period (FY): 2012-04-01 – 2015-03-31
• Keywords: 光触媒 / 酸化チタン / アンモニア / 多孔質材料 / 環境材料 / 大気浄化 / 固体酸

Outline of Final Research Achievements

In this work, solid acid-TiO2 composites and TiO2 coated porous glass fiber clothes were prepared for effective adsorption and photocatalytic decomposition of ammonia in air environment. The solid acid-TiO2 composites were adsorbed ammonia effectively. However more NO3-, a product of ammonia decomposition, was detected from the non-treatment TiO2 compared with acid-TiO2 composites. It is indicated that the solid acid-TiO2 composite is not effective to enhance the photocatalytic decomposition of ammonia. TiO2 coated porous glass fiber clothes were prepared by acid treatment of E-glass fiber clothes and subsequent dip-coating of TiO2. The TiO2-coated porous glass fiber clothes exhibited higher adsorption capabilities and high photocatalytic decomposition activities against 2-propanol than TiO2-coated nonporous glass fiver clothes.

Free Research Field

大気・水環境の酸化チタン光触媒による浄化及び界面・コロイド科学に基づいたセラミックスプロセッシング