PHOTOCATALYTIC NANOCOMPOSITE STRUCTURED WITH BORON

A photocatalytic inorganic-organic hybrid composite material structured with boron and its preparation, comprising (a) particles composed of (a.1) nanoparticles (NPs) with = 1 of dimensions = 20 nm of at least one metal oxide being in particular TiO2 alone or TiO2 mixed with oxides of = 1 metals sel...

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Bibliographische Detailangaben
Hauptverfasser:	CELIKER, GULSEN, CELIKER, HUSEYIN, DEMIR, HILMI VOLKAN
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	CHEMICAL COMPOSITION OF GLASSES, GLAZES, OR VITREOUSENAMELS CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY CHEMISTRY GLASS JOINING GLASS TO GLASS OR OTHER MATERIALS METALLURGY MINERAL OR SLAG WOOL PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS,MINERALS OR SLAGS SURFACE TREATMENT OF GLASS THEIR RELEVANT APPARATUS TRANSPORTING
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Beschreibung
Zusammenfassung:	A photocatalytic inorganic-organic hybrid composite material structured with boron and its preparation, comprising (a) particles composed of (a.1) nanoparticles (NPs) with = 1 of dimensions = 20 nm of at least one metal oxide being in particular TiO2 alone or TiO2 mixed with oxides of = 1 metals selected from Zn, Al, Tl and Zr, (a.2) in particular particles of boron oxide or boron particles or clusters resulting from H3BO3 or B(OR)3, (a.3) a network made of condensation products of in particular alcohols, silanes and metal(loid) alkoxides, the metals being = 1 of Ti, Tl, Zn, Zr, Al, the metalloids being = 1 of Si, B, Sb; said network encapsulating the particles (a.2), said network including -O- bridges between the NPs (a.1) and the particles (a.2); (b) at least one resin, in particular an acrylic resin, optionally chemically modified by silane(s), siloxane(s) and/or silane coupling agents. These materials show enhanced UV and visible activity. L'invention concerne un nanocomposite hybride inorganique-organique fonctionnel structuré avec du bore. A l'aide de la présente invention, un matériau nanométrique est obtenu, lequel présente une activité améliorée dans la région visible et UV et dans lequel des combinaisons de nanoparticules de métal-oxyde avec des composés de bore sont utilisées.