Photochemical processes in zeolites: new developments

Effect of alkali cations on heterogeneous photo-Fenton process mediated by Prussian blue colloids

“…To overcome the drawback the heterogeneous Fenton-like reagents were developed by immobilizing the ferrous or ferric ions on a carbon nanotube [13], porous activated carbon [13][14][15], mesoporous silica [16,17], clay [18,19], and others [20][21][22]. The Fenton-like heterogeneous catalysts supported on the zeolite were studied in particular, broadly [23][24][25][26][27][28][29], due to the zeolitic porosity, stability, confinement effect, and adjustable channel size [30][31][32]. The investigations are of very great value in eliminating the organic pollutants and elucidating the principle of catalytic reactions.…”

Molecular host–guest complexes: Shielding of guests on semiconductor surfaces

“…Dye-loaded zeolites oriented on surfaces, including semiconductors, provide a unidirectional antenna system, and a new design concept for functional interfaces. Nanosized zeolite L crystals were bound as perpendicularly oriented monolayers to ITO 101 etched silicon wafers, 96 gold, 97,98 and quartz, 99,100 opening the way for optoelectronic applications, including artificial antenna systems, thin layer solar cells and light-emitting electrochemical cells (LEECs). 100 As an example, De Cola and coworkers have coated zeolitic antennas with silica shells to obtain chemically stable and highly versatile multifunctional dye-loaded capsules, the employed microcontact transfer printing methods to form monolayer of such capsules on various surfaces.…”

Reactivity of rimsulfuron in newly formed inclusion combinations by using cyclodextrin and zeolite

“…Intracrystalline zeolite space is also considered a novel 'solvent' [4]. The topological structure of Y-type zeolite consists of an interconnected three-dimensional network of relatively large spherical cavities, termed primary supercages (diameter of about 13 Å ); each supercage is connected tetrahedrally to four other secondary supercages through 7.4-7.6 Å windows (table 1).…”