Progress in zeolite synthesis promotes advanced applications

Zaarour, Moussa; Dong, Biao; Naydenova, Izabela; Retoux, R.

doi:10.1016/j.micromeso.2013.08.014

Cited by 156 publications

(97 citation statements)

References 75 publications

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“…Chalcogenide clusters have been widely studied, in particular using zeolite Y as a matrix ,. As observed for the Ag‐clusters, the structure of the confined aggregates and the properties of the resulting materials are strongly dependent on the composition of the framework, and on process parameters, such as the degree of hydration . In principle, the clusters can form both in the sodalite cage and in the supercage of zeolite Y (Figure a, b).…”

Section: Clusters Of Metals or Semiconductors: Organization Of Zero‐dmentioning

confidence: 99%

Supramolecular Organization in Confined Nanospaces

Tabacchi

2018

ChemPhysChem

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Empty spaces are abhorred by nature, which immediately rushes in to fill the void. Humans have learnt pretty well how to make ordered empty nanocontainers, and to get useful products out of them. When such an order is imparted to molecules, new properties may appear, often yielding advanced applications. This review illustrates how the organized void space inherently present in various materials: zeolites, clathrates, mesoporous silica/organosilica, and metal organic frameworks (MOF), for example, can be exploited to create confined, organized, and self-assembled supramolecular structures of low dimensionality. Features of the confining matrices relevant to organization are presented with special focus on molecular-level aspects. Selected examples of confined supramolecular assemblies - from small molecules to quantum dots or luminescent species - are aimed to show the complexity and potential of this approach. Natural confinement (minerals) and hyperconfinement (high pressure) provide further opportunities to understand and master the atomistic-level interactions governing supramolecular organization under nanospace restrictions.

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Section: Clusters Of Metals or Semiconductors: Organization Of Zero‐dmentioning

confidence: 99%

Supramolecular Organization in Confined Nanospaces

Tabacchi

2018

ChemPhysChem

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“…were able to resolve the crystal structure of such a dye–Mordenite composite, and Mintova et al. stressed the importance of progress in zeolite synthesis to promote advanced applications . More general aspects of host–guest systems based on nanoporous crystals, including inorganic guests, have also been previously reported .…”

Section: Resultsmentioning

confidence: 97%

Supramolecular Organization of Dye Molecules in Zeolite L Channels: Synthesis, Properties, and Composite Materials

Cao

Khorev

Devaux

et al. 2016

Chemistry A European J

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Sequential insertion of different dyes into the 1D channels of zeolite L (ZL) leads to supramolecular sandwich structures and allows the formation of sophisticated antenna composites for light harvesting, transport, and trapping. The synthesis and properties of dye molecules, host materials, composites, and composites embedded in polymer matrices, including two-and three-color antenna systems, are described. Perylene diimide (PDI) dyes are an important class of chromophores and are of great interest for the synthesis of artificial antenna systems. They are especially well suited to advancing our understanding of the structure-transport relationship in ZL because their core fits tightly through the 12-ring channel opening. The substituents at both ends of the PDIs can be varied to a large extent without influencing their electronic absorption and fluorescence spectra. The intercalation/insertion of 17 PDIs, 2 terrylenes, and 1 quaterrylene into ZL are compared and their interactions with the inner surface of the ZL nanochannels discussed. ZL crystals of about 500 nm in size have been used because they meet the criteria that must be respected for the preparation of antenna composites for light harvesting, transport, and trapping. The photostability of dyes is considerably improved by inserting them into the ZL channels because the guests are protected by being confined. Plugging the channel entrances, so that the guests cannot escape into the environment is a prerequisite for achieving long-term stability of composites embedded in an organic matrix. Successful methods to achieve this goal are described. Finally, the embedding of dye-ZL composites in polymer matrices, while maintaining optical transparency, is reported. These results facilitate the rational design of advanced dye-zeolite composite materials and provide powerful tools for further developing and understanding artificial antenna systems, which are among the most fascinating subjects of current photochemistry and photophysics.

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“…The fact that zeolites can be designed with different morphologies, chemical composition and properties has enabled their extensive application to different fields, mainly: (i) catalysis (e.g., cracking processes in petrochemical industry [4]); (ii) adsorption (e.g., purification of gas streams in petrochemical industry [4] or the removal of organic compounds from contaminated waters [5]); and (iii) ion-exchange (e.g., water softening in detergents or heavy metal removal from contaminated waters [1,5]). Additionally, the ever growing interest in the synthesis of new zeolites has promoted innovative applications such as solar cell technology, microelectronics, medicine and holographic sensors [6,7]. Solid-phase extraction (SPE) is one of the most widely used sample preparation techniques providing analyte isolation, preconcentration and sample clean-up [8].…”

Section: Introductionmentioning

confidence: 99%