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    • 1. 发明授权
    • Photocatalyst and process for the preparation thereof
    • 光催化剂及其制备方法
    • US6074981A
    • 2000-06-13
    • US51223
    • 1998-04-03
    • Hiroaki TadaKoji ShimodaToshiya ItoAkihiko Hattori
    • Hiroaki TadaKoji ShimodaToshiya ItoAkihiko Hattori
    • B01D53/86B01D53/88B01J35/00C03C17/25C03C17/34B01J27/06B01J27/135
    • C03C17/256B01D53/8687B01D53/885B01J35/002B01J35/004C03C17/3417B01D2255/802C03C2217/212C03C2217/241C03C2217/71C03C2218/10
    • Fluorine contained within a photocatalyst layer containing titanium oxide and other metallic oxide semiconductors increases the metallic oxide's photocatalytic activity. The described photocatalyst may be in the form of either film, flake, particulate, or fiber. In addition, it can be used for coating the surface of a base material of various forms, such as sheet, film, flake, particulate, bar, or fiber. When using a base material that has an alkaline-containing glass composition, establishing a fluorine-containing layer, such as a layer of fluorine-containing silicon dioxide and other metallic oxide, between the photocatalyst film and the base material can prevent the deterioration of photocatalytic activity of the photocatalyst layer. The fluorine-containing layer functions as an alkaline barrier that controls the diffusion and migration of alkali metallic ions in the glass fibers, such as Na ions, into the photocatalyst layer. Inorganic fiber- and glass sheet-based photocatalyst bearing materials have an excellent capability to decompose rarefied harmful organic gases, and are suitable for use as interior wall and air filters in super clean enclosed spaces and conveyance spaces for semiconductor production, clean rooms for various other purposes, and office and residential buildings, and for other purposes including air cleaning, antibacterial action, anti-fouling action, and defogging of clear sheets (maintaining hydrophilicity).
    • PCT No.PCT / JP97 / 02681 Sec。 371日期:1998年4月3日 102(e)日期1998年4月3日PCT 1997年8月1日PCT PCT。 公开号WO98 / 05413 日期1998年2月12日包含在含有氧化钛和其它金属氧化物半导体的光催化剂层内的氟增加了金属氧化物的光催化活性。 所述的光催化剂可以是薄膜,薄片,颗粒或纤维的形式。 此外,它可以用于涂覆各种形式的基材的表面,例如片,薄膜,薄片,颗粒,棒或纤维。 当使用具有含碱性玻璃组合物的基材时,在光催化剂膜和基材之间建立诸如一层含氟二氧化硅和其它金属氧化物的含氟层可以防止光催化剂的劣化 光催化层的活性。 含氟层用作控制玻璃纤维如Na离子中的碱金属离子在光催化剂层中的扩散和迁移的碱性屏障。 无机纤维和玻璃板基光催化剂轴承材料具有优异的分解稀有有害有机气体的能力,适用于超洁净封闭处所内壁和空气过滤器,半导体生产用输送空间,各种洁净室 用途,办公楼和住宅建筑物,以及用于其他用途,包括空气净化,抗菌作用,防污染作用和清除片材的除雾(保持亲水性)。
    • 2. 发明授权
    • Photocatalyst and method of making
    • 光催化剂及其制备方法
    • US06194346B1
    • 2001-02-27
    • US09472832
    • 1999-12-28
    • Hiroaki TadaKoji ShimodaToshiya ItoAkihiko Hattori
    • Hiroaki TadaKoji ShimodaToshiya ItoAkihiko Hattori
    • B01J2706
    • C03C17/256B01D53/8687B01D53/885B01D2255/802B01J35/002B01J35/004C03C17/3417C03C2217/212C03C2217/241C03C2217/71C03C2218/10
    • Fluorine contained within a photocatalyst layer containing titanium oxide and other metallic oxide semiconductors increases the metallic oxide's photocatalytic activity. The described photocatalyst may be in the form of either film, flake, particulate, or fiber. In addition, it can be used for coating the surface of a base material of various forms, such as sheet, film, flake, particulate, bar, or fiber. When using a base material that has an alkaline-containing glass composition, establishing a fluorine-containing layer, such as a layer of fluorine-containing silicon dioxide and other metallic oxide, between the photocatalyst film and the base material can prevent the deterioration of photocatalytic activity of the photocatalyst layer. The fluorine-containing layer functions as an alkaline barrier that controls the diffusion and migration of alkali metallic ions in the glass fibers, such as Na ions, into the photocatalyst layer. Inorganic fiber- and glass sheet-based photocatalyst bearing materials have an excellent capability to decompose rarefied harmful organic gases, and are suitable for use as interior wall and air filters in super clean enclosed spaces and conveyance spaces for semiconductor production, clean rooms for various other purposes, and office and residential buildings, and for other purposes including air cleaning, antibacterial action, anti-fouling action, and defogging of clear sheets (maintaining hydrophilicity).
    • 含有氧化钛和其它金属氧化物半导体的光催化剂层内的氟增加了金属氧化物的光催化活性。 所述的光催化剂可以是薄膜,薄片,颗粒或纤维的形式。 此外,它可以用于涂覆各种形式的基材的表面,例如片,薄膜,薄片,颗粒,棒或纤维。 当使用具有含碱性玻璃组合物的基材时,在光催化剂膜和基材之间建立诸如一层含氟二氧化硅和其它金属氧化物的含氟层可以防止光催化剂的劣化 光催化层的活性。 含氟层用作控制玻璃纤维(例如Na离子)中的碱金属离子在光催化剂层中的扩散和迁移的碱性屏障。 无机纤维和玻璃板基光催化剂轴承材料具有优异的分解稀有有害有机气体的能力,适用于超洁净封闭处所内壁和空气过滤器,半导体生产用输送空间,各种洁净室 用途,办公楼和住宅建筑物,以及用于其他用途,包括空气净化,抗菌作用,防污染作用和清除片材的除雾(保持亲水性)。