In this investigation we synthesized NaX-Nanozeolite by hydrothermal crystallization conditions.These nanoparticles were prepared at different conditions in a temperature controlled shaker. Thesynthesized zeolites were characterized by instrumental analysis methods, such as X-raydiffraction (XRD), X-ray fluorescence (XRF), scanning electron microscopy (SEM) andtransmission electron microscopy (...

This study investigated the one-pot hydrothermal synthesis of mixed-phase ion-exchangers from waste amber container glass and three different aluminium sources (Si/Al = 2) in 4.5 M NaOH(aq) at 100 °C. Reaction products were characterised by X-ray diffraction analysis, Fourier transform infrared spectroscopy, 27Al 29Si magic angle spinning nuclear magnetic resonance spectroscopy scanning electro...

in this study the catalytic dehydrogenation of ethylbenzene to styrene was investigated in a simulated tubular sodalite membrane reactor. the high quality microporous sodalite membrane was synthesized by direct hydrothermal method and characterized by single gas permeation measurements. the performance of the prepared membrane showed high potential for application in a dehydrogenation membrane ...

In this study the catalytic dehydrogenation of ethylbenzene to styrene was investigated in a simulated tubular sodalite membrane reactor. The high quality microporous sodalite membrane was synthesized by direct hydrothermal method and characterized by single gas permeation measurements. The performance of the prepared membrane showed high potential for application in a dehydrogenation membrane ...

in this investigation we synthesized nax-nanozeolite by hydrothermal crystallization conditions.these nanoparticles were prepared at different conditions in a temperature controlled shaker. thesynthesized zeolites were characterized by instrumental analysis methods, such as x-raydiffraction (xrd), x-ray fluorescence (xrf), scanning electron microscopy (sem) andtransmission electron microscopy (...

Class F Fly ash-based geopolymers are prone to various high-temperature phenomena, such as cracking, spalling, and thermal shrinkage. Here we study the effect of enriching fly ash with synthetic sodalite phase in order enhance properties formed geopolymer. The morphological changes, compositional alterations porosity, gel behaviour, on deformation material after exposure up 1000 °C investigated...

X-ray powder methods have been used to study the room-temperature structures of the synthetic sodalites: Li8(AI6Si6024)CI2, KT.6Nao.4(A16Si6Oz4)CI2, and Nas(A16Si6024)I ~. Natural sodalite was also studied and the atomic coordinates show satisfactory agreement with those determined from the single-crystal data of L6ns and Schulz (1967). The LiC1and KCIas well as the NaCl-sodalites refined in th...

A genetic algorithm has been used to generate crystal framework structures, including that of sodalite and chabazite, from the knowledge of only the unit cell dimensions, constituent elements and by defining exclusion zones–regions within the unit cell where the constituent elements are forbidden, as opposed to being discouraged. We present details of a direct approach to restricting the possib...

We have investigated various silica zeolites using density functional theory with periodic supercells, plane waves, and pseudopotentials. These zeolitic phases include silica sodalite, chabazite, mordenite, silica LTA, and silicalite. Atom-level geometries, elastic properties, and cohesive energies are presented. Although the zeolites exhibit a wide range of Si-O-Si angles and densities, the co...