公开(公告)号：US5686372A

公开(公告)日：1997-11-11

申请号：US451650

申请日：1995-05-26

申请人： Cooper H. Langford ,  Giuseppe P. Lepore ,  Lalchan Persaud

发明人： Cooper H. Langford ,  Giuseppe P. Lepore ,  Lalchan Persaud

IPC分类号： B01J21/06 ,  B01J21/08 ,  B01J23/30 ,  B01J31/02 ,  B01J35/00 ,  B01J35/02 ,  B01J37/02 ,  B01J101/42 ,  B01J101/50

CPC分类号： B01J31/0212 ,  B01J31/0274 ,  B01J35/002 ,  B01J35/004 ,  B01J21/08 ,  B01J37/0209 ,  Y02W10/37

摘要： A photocatalyst compound comprising a silica-based support material having bound thereto a photocatalyst selected from the group consisting of TiO.sub.2, WO.sub.3 and mixtures thereof, the photocatalyst compound having been derivatized by reaction with an alcohol compound. The process for producing the photocatalyst compound comprises the steps of: (i) contacting a silica-based support material having bound thereto a photocatalyst selected from the group consisting of TiO.sub.2, WO.sub.3 and mixtures thereof with an alcohol compound to form a slurry; (ii) maintaining the temperature of the slurry above the boiling point of the slurry to produce a substance having a modified surface consisting essentially of an alkyl silicate ester and esterified photocatalyst; and (iii) subjecting the substance to selective oxidation to oxidize the esterfied photocatalyst thereby producing a photocatalyst compound having a modified surface consisting essentially of an alkyl silicate ester and a photocatalyst substantially free of ester groups. The photocatalyst compound is useful, inter alia, in the treatment of a fluid containing an organic pollutant.

摘要翻译： 一种光催化剂化合物，其包含与其结合的二氧化硅基载体材料，所述光催化剂选自TiO 2，WO 3及其混合物，所述光催化剂化合物已经通过与醇化合物的反应衍生化。 制备光催化剂化合物的方法包括以下步骤：（i）将结合有光催化剂的二氧化硅基载体材料与选自TiO 2，WO 3的混合物与醇化合物接触以形成浆料; （ii）将浆料的温度保持在浆料沸点之上，以产生具有主要由烷基硅酸酯和酯化的光催化剂组成的改性表面的物质; 和（iii）对物质进行选择性氧化以氧化酯化的光催化剂，从而制备具有基本上由烷基硅酸酯和基本上不含酯基的光催化剂组成的改性表面的光催化剂化合物。 光催化剂化合物尤其用于处理含有机污染物的流体。