Multi-functional material with photocatalytic functions and...

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B01J 19/08 (2006.01) A61L 9/18 (2006.01) B01J 21/06 (2006.01) B01J 35/00 (2006.01) B01J 35/02 (2006.01) B01J 37/02 (2006.01) C03C 17/00 (2006.01) C03C 17/34 (2006.01) C04B 41/45 (2006.01) C04B 41/52 (2006.01) C04B 41/81 (2006.01) C04B 41/89 (2006.01)

Patent

CA 2155822

Multi-functional materials are classified into those which have a photocatalytic layer 2 with a photocata- lytic function directly disposed on the surface of a base 1 and those which have a photocatalytic layer 2 with a photo- catalytic function disposed on the surface of a base 1 through a binder layer 6 interposed therebetween. Photo- catalytic particles of the photocatalytic layer 2 are joined together by a surface energy or solid-state sintering. The photocatalytic layer 2 may have a structure in which fine particles fill interstices defined between photocatalytic particles or a structure in which no fine particles fill interstices defined between photocatalytic particles. A metal such as Ag, Pt, or the like may be fixed or not fixed to surfaces of the photocatalytic particles.

La présente invention concerne une substance multifonction divisée en deux types, dont un type peut être déposé en couche photocatalytique à fonction photocatalytique directement sur la surface d'un substrat (1) et dont un autre type peut être déposé en couche photocatalytique (2) indirectement sur la surface du substrat (1) grâce à une couche de liaison (6). Le mode de liaison des particules photocatalytiques constituant la couche photocatalytique (2) utilise le principe de liaison par énergie de surface et d'agglomération par frittage de la phase solide. La structure de la couche photocatalytique (2) comporte une structure dans laquelle de fines particules sont rassemblées entre les intervalles laissés libres entre les particules photocatalytiques et une autre structure dans laquelle ce n'est pas le cas. En outre, il y a une structure dans laquelle des métaux tels que Ag et Pt sont fixés aux surfaces des particules photocatalytiques et une autre structure dans laquelle ce n'est pas le cas.

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