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1. 发明公开

EP0997439A3 Method for decomposing bromic acid by photocatalyst and apparatus therefor 有权
标题翻译： Verfahren und Vorrichtung zur Zersetzung vomBromsäuremit Photokatakysatoren
公开(公告)号：EP0997439A3
公开(公告)日：2002-08-14
申请号：EP99117371.7
申请日：1999-09-03
申请人： Kabushiki Kaisha Meidensha
发明人： Noguchi, Hiroshi, c/o K. K. Meidensha , Kagami, Rie, c/o K. K. Meidensha , Sato, Shigeo, c/o K. K. Meidensha , Kusumi, Miyoko, c/o K. K. Meidensha
IPC分类号： C02F1/70 , C02F1/32
CPC分类号： A62D3/176 , A62D3/38 , A62D2101/49 , A62D2203/02 , A62D2203/10 , B01J19/123 , B01J2219/00177 , B01J2219/0884 , B01J2219/0892 , C02F1/32 , C02F1/70 , C02F2101/12
摘要： The invention relates to a method for decomposing bromate ions contained in a liquid. The method includes the sequential steps of bringing the liquid into contact with a photocatalyst; and irradiating the photocatalyst with a light ray having an energy that is not lower than that of a band gap of the photocatalyst, thereby generating a photocatalytic reaction to decompose the bromate ions. The invention further relates an apparatus for decomposing bromate ions contained in a liquid. The apparatus includes a first section for generating therein a photocatalytic reaction to decompose the bromate ions; a photocatalyst adapted to be brought into contact with the liquid in the first section; and a light source for irradiating the photocatalyst with the light ray such that the photocatalytic reaction is generated in the first section when the photocatalyst is in contact with the liquid. Thus, it is possible to efficiently and stably decompose the bromate ions. The photocatalyst may be at least one metal oxide including titanium and a metal having an electronegativity lower than that of titanium. In this case, it is possible to omit pH adjustments of the liquid before and after the photocatalytic reaction.
摘要翻译：本发明涉及一种分解液体中所含的溴酸根离子的方法。该方法包括使液体与光催化剂接触的顺序步骤; 用具有不低于光催化剂带隙能量的光线照射光催化剂，从而产生光催化反应以分解溴酸根离子。本发明还涉及用于分解包含在液体中的溴酸根离子的装置。该装置包括用于在其中产生光催化反应以分解溴酸根离子的第一部分; 适于与第一部分中的液体接触的光催化剂; 以及用于用光线照射光催化剂的光源，使得当光催化剂与液体接触时，在第一部分中产生光催化反应。因此，可以有效且稳定地分解溴酸根离子。光催化剂可以是至少一种金属氧化物，其包括钛和具有低于钛的电负性的金属。在这种情况下，可以在光催化反应之前和之后省略液体的pH调节。

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