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公开(公告)号:US20080260626A1
公开(公告)日:2008-10-23
申请号:US12046149
申请日:2008-03-11
IPC分类号: C01G23/047 , B01J27/043
CPC分类号: B01J21/063 , B01J35/004 , B01J35/023 , B01J35/10 , B01J35/109
摘要: A powdery photocatalyst based on titanium dioxide displays a bimodal particle size distribution of primary particles, with one particle component under about 30 nm and a second particle component over about 100 nm. The photocatalyst is manufactured by mixing at least two TiO2 components. One component is a TiO2 photocatalyst which is active in UV light and/or in visible light and which displays a specific surface according to BET of at least about 120 m2/g. The second component is anatase and/or rutile displaying a specific surface according to BET of less than about 50 m2/g. The two components are contained in the photocatalyst at a weight ratio of 1:1000 to 1000:1.
摘要翻译: 基于二氧化钛的粉状光催化剂显示一次粒子的双峰粒径分布,一个粒子成分在约30nm以下,第二粒子成分在约100nm以上。 光催化剂是通过混合至少两种TiO 2成分来制造的。 一种组分是在UV光和/或可见光中有活性的TiO 2光催化剂,其表现出根据BET的比表面积至少为约120μm2 / G。 第二组分是锐钛型和/或金红石,根据BET小于约50m 2 / g显示比表面积。 两种组分以1:1000至1000:1的重量比包含在光催化剂中。