PHOTOCATALYTIC DISPERSION ACTIVE IN THE VISIBLE RANGE OF LUMINOUS RADIATION AND METHOD FOR PREPARING THE SAME

The invention relates to a photocatalytic dispersion for carrying out coatings with self-cleaning by photocatalysis and to a process for preparing the same. According to the invention, the photocatalytic dispersion comprises 1g/l...10g/l dispersed phase composed of a mixture of TiOand CuS where x=1....

Ausführliche Beschreibung

Gespeichert in:

Bibliographische Detailangaben
Hauptverfasser:	ISAC LUMINIŢA-ANIŞOARA, DUŢĂ-CAPRĂ ANCA, BOGATU CRISTINA AURICA, PERNIU DANA, VIŞA ION, COVEI MARIA, NEAGOE MIRCEA
Format:	Patent
Sprache:	eng ; rum
Schlagworte:	CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL SEPARATION THEIR RELEVANT APPARATUS TRANSPORTING
Online-Zugang:	Volltext bestellen
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!

Beschreibung
Zusammenfassung:	The invention relates to a photocatalytic dispersion for carrying out coatings with self-cleaning by photocatalysis and to a process for preparing the same. According to the invention, the photocatalytic dispersion comprises 1g/l...10g/l dispersed phase composed of a mixture of TiOand CuS where x=1...2, in a TiO: CuS mass ratio of 10:1, 10...10g/l Ag nanoparticles, 50...250 mg/l chitosan as a stabilizer, as well as a dispersing phase consisting of distilled water. According to the invention, the method consists in preparing the dispersed phase over which a homogenized mixture of stabilizer and distilled water is added as drops, at the ambient temperature, after which silver nanoparticles are prepared as water-stock aqueous dispersion is added, to result in a dispersion which is homogenized by vigorous stirring, at the ambient temperature, for 10...15 min and in ultrasonic bath for 2h.