Zeolite-based photocatalysts

Abstract

The compartmentalised intracrystalline void space of zeolites are specially suited to incorporate and organise photoactive guests that can be used as photocatalysts. The rigid micropores allow assembly of multicomponent systems comprising of antenna and relays reminiscent of natural photosynthetic centers. Besides inorganic metal oxide clusters, zeolites as host are particularly attractive to construct organic photocatalysts since the guest becomes significantly stabilized by incorporation. This review gives special emphasis to the commercial and potential application of photocatalysts.

Zeolite NaY‐Promoted Monocyclization of Epoxy Polyene Terpenes: A Unique Route for the Direct Synthesis of Incompletely Cyclized Naturally Occurring Terpenols

“…Zeolites are mixed aluminosilicates that catalyze reactions [16] by confining the substrates within "active site" cavities, and have found significant applications in heterogeneous photocatalysis. [17] We have chosen faujasites (zeolites MY, M = cation) as catalysts. They possess a 3D framework which consists of supercages, whose interior diameter is approximately 13 .…”

Microcontact Transfer Printing of Zeolite Monolayers

“…[1][2][3][4][5][6][7] Because of their ion-exchange capabilities, presence of well-defined rigid cavities, and transparency in the UV-vis/NIR region, zeolites can act as water softeners, catalysts, and host systems for a variety of photoactive guests. [1][2][3][4][5][6][7] In particular, zeolite L, which possesses unidirectional channels, has been shown to be a suitable material for supramolecular organization of different kinds of molecules. [8][9][10] The size (30 nm to several micrometers) and aspect ratio of L-type zeolite can be controlled synthetically.…”

Understanding metal–organic frameworks for photocatalytic solar fuel production

“…semiconductors, metal-doped zeolites and metal complexes, have been intensively studied to boost artificial photosynthesis. [3][4][5][6] Still, most known catalysts are based on expensive noble metals; their activities in the visible range of the spectrum achieved so far are low, and problems like fast back-electron transfer and recombination considerably decrease their efficiency. Therefore, artificial photosynthesis, where light absorption, charge funnelling, and subsequent utilization in redox reactions are performed by different sets of molecules arranged in a complex system, stands at the intersection between the urgent drive for sustainable energy sources and state-of-the-art nanomaterial engineering.…”