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    Filter comprising a photocatalyst film on a substrate
    2.
    发明公开
    Filter comprising a photocatalyst film on a substrate 有权
    过滤umfassend eine Photokatalysatorschicht auf einem Substrat

    公开(公告)号：EP2810713A1

    公开(公告)日：2014-12-10

    申请号：EP14183819.3

    申请日：2007-01-31

    申请人： Toshiba Materials Co., Ltd.

    发明人： Nakano, Kayo ,  Sato, Akira ,  Shirakawa, Yasuhiro ,  Okamura, Masami ,  Matsuda, Ryotaro ,  Kamakura, Takaya ,  Otsuka, Kazunari ,  Yokokura, Kiyoshi ,  Okawa, Hideki ,  Ishizaki, Ariyoshi

    IPC分类号： B01J35/02 ,  A61L9/00 ,  A61L9/16 ,  B01J23/30 ,  B01J37/02 ,  B01J37/34 ,  B01D53/88 ,  B01J35/00

    摘要： An object of the invention is to provide a filter comprising a photocatalyst material having a higher catalyst effect than conventional photocatalyst materials.
    The photocatalyst material of the invention contains, as its major component, a tungsten oxide powder excited by a light source which emits light having a wavelength of 430 to 500 nm, the photocatalyst material having a decomposition ability of 50% or more wherein the decomposition ability is given by the following equation based on the following test:
    [Test for decomposition ability]
    1g of a tungsten oxide powder and 20 ppm of acetaldehyde (amount A) are poured into a 3-liter glass container, and acetaldehyde (amount B) is measured after light having a peak wavelength of 460 nm ± 10 nm is irradiated to the mixture for 2 hours to measure the decomposition ability (%):
    Decomposition ability (%) = [(acetaldehyde amount A - acetaldehyde amount B)/acetaldehyde amount A] × 100.

    摘要翻译： 本发明的目的是提供一种包含具有比常规光催化剂材料更高的催化剂效果的光催化剂材料的过滤器。 本发明的光催化剂材料作为其主要成分含有由发射波长为430〜500nm的光的光源激发的氧化钨粉末，光催化剂材料的分解能力为50％以上，其中分解能力 基于以下试验由以下公式给出：[分解能力试验]将1g氧化钨粉末和20ppm乙醛（A量）倒入3升玻璃容器中，乙醛（量B）为 将该波长460nm±10nm的光照射到混合物2小时后测定分解能力（％）：分解能力（％）= [（乙醛量A-乙醛量B）/乙醛量A ]×100。