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    ZnO-Pd composite catalyst and production method thereof
    4.
    发明授权
    ZnO-Pd composite catalyst and production method thereof 失效
    ZnO-Pd复合催化剂及其制备方法

    公开(公告)号：US6099695A

    公开(公告)日：2000-08-08

    申请号：US910207

    申请日：1997-08-13

    申请人： Akira Fujishima ,  Kazuhito Hashimoto ,  Shuzo Moroto ,  Masao Ando ,  Masako Sakai

    发明人： Akira Fujishima ,  Kazuhito Hashimoto ,  Shuzo Moroto ,  Masao Ando ,  Masako Sakai

    IPC分类号： B01D53/86 ,  B01J23/60 ,  B01J33/00 ,  C01B13/14 ,  C01B31/20

    CPC分类号： B01D53/864 ,  B01D53/86 ,  B01J23/60

    摘要： A ZnO--Pd composite catalyst wherein Pd is dispersed and fixed on the surface of ZnO is produced by ion adsorption process having the steps of soaking ZnO in an acid solution of Pd to adsorb Pd ions (Pd.sup.2+) onto the surface of ZnO; and reducing the adsorbed Pd ions to metallic Pd particles so that the metallic Pd particles are substantially evenly deposited on the surface of ZnO. The ZnO--Pd composite catalyst provides a stable and continuing CO oxidizing capability, without light irradiation, even when the air to be treated contains sulfur compounds such as H.sub.2 S and SOx.

    摘要翻译： 通过离子吸附法制备了Pd分散固定在ZnO表面的ZnO-Pd复合催化剂，其工序有：将ZnO浸入Pd的酸性溶液中，将Pd离子（Pd2 +）吸附到ZnO的表面上; 并将吸附的Pd离子还原成金属Pd颗粒，使得金属Pd颗粒基本上均匀地沉积在ZnO的表面上。 即使待处理的空气含有硫化合物如H 2 S和SO x，ZnO-Pd复合催化剂提供了稳定且持续的CO氧化能力，而不需要光照射。

    Photocatalyst and method for preparing the same
    7.
    发明授权
    Photocatalyst and method for preparing the same 失效
    光催化剂及其制备方法

    公开(公告)号：US5668076A

    公开(公告)日：1997-09-16

    申请号：US429345

    申请日：1995-04-26

    申请人： Yasuhide Yamagushi ,  Masatoshi Yamazaki ,  Akira Fujishima ,  Kazuhito Hashimoto

    发明人： Yasuhide Yamagushi ,  Masatoshi Yamazaki ,  Akira Fujishima ,  Kazuhito Hashimoto

    IPC分类号： B01J23/06 ,  B01J35/00 ,  B01J37/02

    CPC分类号： B01J23/06 ,  B01J35/002 ,  B01J35/004 ,  B01J37/0226

    摘要： A photocatalyst comprises, on the surface, a zinc oxide film which comprises zinc oxide fine particles formed by anodic oxidation of zinc and having a particle size of not more than 0.2 .mu.m and a method for preparing a photocatalyst comprises the step of anodically oxidizing the surface of a zinc metal substance or a substance mainly comprising zinc metal to form, on the surface, a zinc oxide film which comprises zinc oxide fine particles having a particle size of not more than 0.2 .mu.m. The photocatalyst permits quite efficient decomposition or destruction of gases or bacterial cells to be treated, can easily be adhered to faces to which the photocatalytic function is to be imparted to thus impart sterilization and/or deodorization functions thereto and can easily be fitted to various apparatuses to which a film has conventionally been applied with great difficulty. In particular, if the thickness of the metal substrate is not more than 1 mm, the photocatalyst can be processed by, for instance, cutting and/or bending so that it can be adhered to faces other than flat ones. Moreover, if the photocatalytic activity thereof is deteriorated due to, for instance, contamination, the used photocatalyst can easily be replaced with a fresh one.

    摘要翻译： 光催化剂在表面上包含氧化锌膜，其包含通过阳极氧化锌并且具有不大于0.2μm的粒径形成的氧化锌微粒，以及制备光催化剂的方法包括以下步骤：阳极氧化 锌金属物质的表面或主要包含锌金属的物质，在表面上形成包含粒径不大于0.2μm的氧化锌微粒的氧化锌膜。 光催化剂可以很好地分解或破坏待处理的气体或细菌细胞，可以容易地粘附到赋予光催化功能的面上，从而赋予其消毒和/或除臭功能，并且可以容易地装配到各种装置 电影传统上很难应用于其中。 特别地，如果金属基板的厚度不大于1mm，则光催化剂可以通过例如切割和/或弯曲进行加工，使得其可以粘附到除平面以外的面上。 此外，如果由于例如污染导致的光催化活性劣化，则可以容易地用新鲜的光催化剂代替所使用的光催化剂。