21-O-02-Methods of synthesis for the encapsulation of dye molecules in molecular sieves

Enhancement of the photocatalytic activity of TiO2through spatial structuring and particle size control: from subnanometric to submillimetric length scale

“…[84][85][86] In these zeolite samples containing monoatomic Ti IV , easy formation of Ti III by reduction of Ti IV ions can occur and this can simply be detected by a characteristic Ti III absorption band at around 630 nm that is responsible for the blue tint of the powdered sample. 69,87 On the other hand, Thomas et al have prepared clusters of TiO 2 in mordenite using water soluble titanyl salts. 82,83 Incorporation of titanium in zeolite by using of TiQO 2+ is an ion exchange process in water that may require consecutive cycles using increasing TiQO 2+ concentrations in order to achieve high TiO 2 loadings.…”

One-pot synthesis and characterization of HMS silica carrying Disperse-Red-1 (DR1) covalently bonded to the inner surface

“…In particular, the dye Disperse-Red-1 (2-{[4-(4-nitrophenylazo)-phenyl]ethyl-amino}-ethanol), hereafter referred to as DR1) is a push-pull chromophore which, together with its derivatives, has long been investigated as optical nonlinear dopant [4] in polymers [4][5][6][7], sol-gel silica matrices [8][9][10][11] and organic-inorganic hybrid materials [10][11][12][13]. Inclusion in HY zeolite has also been obtained via an in situ (ship-in-the-bottle) procedure [14].…”

Gasgefüllte Polyelektrolytkapseln

“…Sie können in der Diagnostik, Katalyse, Therapie und im Bioingenieurwesen sowohl in wässrigen als auch in nichtwässrigen Medien Anwendung finden. Die bedeutendsten Beispiele derartiger Mikro‐ und Nanocontainer sind Liposomen,1 Micellen, Mikroemulsionen,2–5 Lipiddoppelschichten,6 Polymermikrokapseln7 und anorganische Einschlüsse 8–11. Die Vorteile dieser Strukturen liegen in ihrer geringen (und normalerweise variablen) Größe, ihrer niedrigen Toxizität und der regulierbaren Permeabilität der Mikrocontainerwand.…”