Titanium-oxide and photocatalyst and photocatalyst coating composition
    23.
    发明授权
    Titanium-oxide and photocatalyst and photocatalyst coating composition 失效
    氧化钛和光催化剂和光催化剂涂料组合物

    公开(公告)号:US06830741B1

    公开(公告)日:2004-12-14

    申请号:US09697309

    申请日:2000-10-27

    IPC分类号: C01G23047

    摘要: A titanium oxide showing sufficiently high photocatalytic activities by irradiation of visible light is provided. Using the titanium oxide, an excellent photocatalyst and photocatalyst coating composition is also provided. The titanium oxide has (i) three or more peaks within the range of from 1.930 to 2.030 in g value of electron spin resonance spectrum of the titanium oxide, wherein the largest one of the peaks is within the range of from 1.990 to 2.020 in the g value and/or (ii) a spin concentration X of 1.50×1016 spins/g or more, which is determined from electron spin resonance spectrum of the titanium oxide measured after irradiation of visible light.

    摘要翻译: 提供了通过可见光照射显示足够高的光催化活性的氧化钛。 使用氧化钛,还提供了优异的光催化剂和光催化剂涂料组合物。 氧化钛具有(i)在氧化钛的电子自旋共振谱的g值中的1.930至2.030范围内的三个或更多个峰,其中最大峰之一在1.990至2.020的范围内 g值和/或(ii)自旋浓度X为1.50×10 16自旋/ g以上,其由在可见光照射后测量的氧化钛的电子自旋共振光谱确定。

    Titanium oxide production process
    25.
    发明授权
    Titanium oxide production process 失效
    氧化钛生产工艺

    公开(公告)号:US06726891B2

    公开(公告)日:2004-04-27

    申请号:US09820367

    申请日:2001-03-29

    IPC分类号: C01G23047

    摘要: A process for producing a titanium oxide is provided which comprises the steps of (i) reacting a titanium compound with ammonia in an amount exceeding the stoichiometric amount necessary to convert the titanium compound to a titanium hydroxide or reacting a titanium compound with a base at pH of from about 2 to about 7, to obtain a reaction product and (ii) calcining the obtained product. The titanium oxide exhibits a high photocatalytic activity by visible light radiation.

    摘要翻译: 提供一种制备氧化钛的方法,其包括以下步骤:(i)使钛化合物与氨反应的量超过将钛化合物转化为氢氧化钛所需的化学计量量或使钛化合物与碱在pH下反应 约2至约7,以获得反应产物和(ii)煅烧所得产物。 氧化钛通过可见光辐射显示出高的光催化活性。

    Titanium hydroxide and photocatalytic coating agent
    26.
    发明授权
    Titanium hydroxide and photocatalytic coating agent 失效
    氢氧化钛和光催化涂层剂

    公开(公告)号:US06645460B2

    公开(公告)日:2003-11-11

    申请号:US09820363

    申请日:2001-03-29

    IPC分类号: C01G2502

    摘要: There is provided a titanium hydroxide having a nitrogen content of 2.3% by weight or more in terms of nitrogen atom based on the titanium hydroxide and/or having a nitrogen content of about 3.3% by weight or more in terms of nitrogen atom based on the titanium oxide obtained after calcining the titanium hydroxide in air at about 400° C. The titanium hydroxide may be utilized as a raw material for producing a photocatalyst which exhibits a superior photocatalytic activity by irradiation of visible light.

    摘要翻译: 提供氢氧化钛,其氮含量以氢氧化钛为基准的氮原子计为2.3重量%以上,和/或氮含量为氮原子约3.3重量%以上 在大约400℃下在空气中煅烧氢氧化钛之后获得的氧化钛。氢氧化钛可以用作生产通过照射可见光而具有优异的光催化活性的光催化剂的原料。

    Abrasive composition and use of the same
    27.
    发明授权
    Abrasive composition and use of the same 失效
    磨料组成与使用相同

    公开(公告)号:US5804513A

    公开(公告)日:1998-09-08

    申请号:US919813

    申请日:1997-08-29

    摘要: An abrasive composition is provided comprising an oxidizing agent and abrasive particles which have a mean particle size of 2 .mu.m or less, wherein each of the abrasive particles comprises (i) at least one oxide selected from aluminum oxide and silicon oxide and (ii) cerium oxide in an amount of 5% to 40% by weight in terms of cerium based on the oxide (i). A method for polishing and planarizing a metal layer formed on a semiconductor substrate using the abrasive composition is also provided.

    摘要翻译: 提供的研磨组合物包含氧化剂和平均粒度为2μm或更小的磨料颗粒,其中每个研磨颗粒包含(i)至少一种选自氧化铝和氧化硅的氧化物和(ii) 相对于氧化物(i),以铈计为5〜40重量%的氧化铈。 还提供了使用研磨剂组合物在半导体衬底上形成的金属层进行抛光和平面化的方法。

    METHOD FOR PRODUCING NOBLE METAL-SUPPORTED PHOTOCATALYST PARTICLES
    28.
    发明申请
    METHOD FOR PRODUCING NOBLE METAL-SUPPORTED PHOTOCATALYST PARTICLES 审中-公开
    用于生产金属支持的光催化剂颗粒的方法

    公开(公告)号:US20110045964A1

    公开(公告)日:2011-02-24

    申请号:US12851020

    申请日:2010-08-05

    IPC分类号: B01J37/34 B01J23/30

    摘要: A method for producing a photocatalytic, which can produce a photocatalyst showing high photocatalytic activity, is provided.The present invention relates to a method for producing noble metal-supported photocatalyst particles wherein a noble metal is supported on the surface of the photocatalyst particles, and a method for producing a dispersion of the noble metal-supported photocatalyst particles, the methods comprising steps of: blowing an inert gas into a raw dispersion in which the photocatalyst particles are dispersed and a precursor of the noble metal is dissolved in a dispersion medium; and irradiating the raw dispersion with light having energy larger than that of a bandgap of the photocatalyst particles, thereby supporting the noble metal on the surface of the photocatalyst particles.

    摘要翻译: 本发明提供一种光催化剂的制造方法,其可以制造出具有高光催化活性的光催化剂。 贵金属负载型光催化剂粒子的制造方法技术领域本发明涉及一种贵金属负载型光催化剂粒子的制造方法,其中贵金属负载在光催化剂粒子的表面上,贵金属负载型光催化剂粒子的分散体的制造方法, 将惰性气体吹入其中分散有光催化剂颗粒的原料分散体中,并将​​贵金属的前体溶解在分散介质中; 用能量比光催化剂粒子的带隙大的光照射原料分散体,由此将贵金属负载在光催化剂颗粒的表面上。