Due to its chemical and photochemical properties and potential applications in numerous domains as a molecular probe, 3-hydroxyflavone (3HF) is a molecule of high interest. In particular, the processes of intramolecular proton transfer in the excited state and metallic complexation are known to be dependent on the chemical environment. In this context, the particular properties of zeolites make...

Applications of zeolite membranes in separation, chemical sensors, and catalytic membrane reactors have led to extensive studies on their fabrication. To date, mainly silicatebased zeolite membranes of the structure types MFI, DDR, LTA, and FAU have been synthesized on different substrates and evaluated for singleor multiple-gas permeation. Routes for the synthesis of zeolite membranes can be b...

We report the quantitative, non-destructive determination of the concentration profile of an organic molecule in a nanoporous polycrystalline zeolite molecular sieve membrane, by step scan infra-red photoacoustic experiments and analysis. An important application of stepscan photoacoustic spectroscopy is the transport-model-independent experimental description of membrane transport, by simultan...

We investigated the effect of aluminum distribution in adsorption properties carbon dioxide MFI, MOR, and ITW zeolites. Because its lack experimental evidence theoretical validation, Löwenstein’s rule was not generally imposed, special attention paid to Al–O–Al linkages. To this end, we first generalized an existing transferable force field for CO2 non-Löwenstein By means molecular simulations ...

The formation characteristics of N2O were investigated with respect to copper-functionalized zeolites, i.e., Cu/SSZ-13 (CHA), Cu/ZSM-5 (MFI), and Cu/BEA (BEA) compared the corresponding zeolites in H form as references elucidate effect framework structure, copper addition, water. Temperature-programmed reduction hydrogen showed that CHA has a higher concentration Cu2+ (Z2Cu) MFI BEA. characteri...

A facile quantitative determination of the Si/Al ratio (SAR) in zeolite frameworks using IR spectroscopy is reported. From linear regression analysis, SAR for medium-to-high Al content zeolites (1 < 5) correlates linearly to corresponding intensity band at wavenumbers (950-1090 cm?1). This model has been validated with 19 different and framework topologies (EDI, ABW, EMT, MER, LTL, LTJ, MOR, FA...