Rapid synthesis of oriented silicalite-1 membranes by microwave-assisted hydrothermal treatment

Motuzas, Julius; Julbe, A.; Noble, Richard D.; Lee, A. van der; Beresnevicius, Z. I.

doi:10.1016/j.micromeso.2006.01.014

Cited by 85 publications

(44 citation statements)

References 39 publications

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“…According to Table 1, the separation factor of M3 (55) was larger than those of M1 (30) and M2 (40) in spite of slight decrease in flux from 2.9 to 2.6 kg/m 2 h. As a result, the PV separation index (PSI) of M3 (140) was greater than those of M1 (84) and M2 (105). Therefore, zeolite membrane with high PV performance was prepared with 100 nm small seeds, which was in agreement with the SEM results ( Figure 1).…”

Section: 32mentioning

confidence: 94%

Ethanol perm‐selective B‐ZSM‐5 zeolite membranes from dilute solutions

Chai

Yang

et al. 2016

AIChE Journal

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in Wiley Online Library (wileyonlinelibrary.com) Boron-substituted MFI (B-ZSM-5) zeolite membranes with high pervaporation (PV) performance were prepared onto seeded inexpensive macroporous a-Al 2 O 3 supports from dilute solution and explored for the separation of ethanol/water mixtures by PV. The effects of several parameters on microstructures and PV performance of the B-ZSM-5 membranes were examined systematically, including the seed size, synthesis temperature, crystallization time, B/Si ratio, H 2 O/SiO 2 ratio and silica source. A continuous and compact B-ZSM-5 membrane was fabricated from solution containing 1 tetraethyl orthosilicate/0.2 tetrapropylammonium hydroxide/0.06 boric acid/600 H 2 O at 448 K for 24 h, showing a separation factor of 55 and a flux of 2.6 kg/m 2 h along with high reproducibility for a 5 wt % ethanol/water mixture at 333 K. It was demonstrated that the incorporation of boron into mobile five (MFI) structure could increase the hydrophobicity of B-ZSM-5 membrane evidenced by the improved contact angle and amount of the adsorbed ethanol, and thus enhance the PV property for ethanol/water mixtures.

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Section: 32mentioning

confidence: 94%

Ethanol perm‐selective B‐ZSM‐5 zeolite membranes from dilute solutions

Chai

Yang

et al. 2016

AIChE Journal

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“…Gas permeation results showed that the hydrogen/n-butane permselectivity of the hydroxy-sodalite zeolite membrane was larger than 1000, being a promising candidate for the separation of hydrogen from gas mixtures and important for the emerging hydrogen energy fuel system. The potential of microwave heating for the rapid synthesis of thin silicalite-1 membranes by secondary growth from microwave-derived silicalite-1 seeds was evaluated (Motuzas et al 2006). The morphology, thickness, homogeneity, crystal preferential orientation and single gas permeation properties of the silicalite-1 membranes were studied in relation to the synthesis parameters.…”

Section: Other Materials and Processesmentioning

confidence: 99%

Microwave Hydrothermal and Solvothermal Processing of Materials and Compounds

Kharisov¹,

Kharissova²,

Méndez³

2012

The Development and Application of Microwave Heating

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“…The BET surface area of these samples was more than double that of samples made by conventional hydrothermal synthesis. In combination with secondary growth and microwave heating, Motuzas et al prepared oriented silicalite-1 zeolite membranes on alumina supports (Motuzas et al, 2006), with the aim to investigate the morphology, thickness, homogeneity, crystal preferential orientation (CPO) and single gas permeation properties of the silicalite-1 membranes in correlation with the synthesis parameters. Thereafter, they have developed an ultra-rapid and reproducible synthesis method for preparation of thin and high quality (101) preferred orientation MFI membranes by coupling the microwave heating synthesis with a rapid template removal method in ozone (Motuzas et al, 2007).…”

Section: Mfi (Silicalite-1and Zsm-5) Zeolite Membranementioning

confidence: 99%