2018
DOI: 10.3390/catal9010013
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Abstract: In this paper, a comparative study of MFI zeolite derived from different silica sources is presented. Dry gel conversion (DGC) method is used to synthesize silicalite-1 and ZSM-5 with MFI structure. Two kinds of silica sources with different particle sizes are used during the synthesis of MFI zeolite. The as-prepared samples were characterized by X-ray diffraction (XRD), N2-sorption, Fourier transform infrared spectroscopy (FTIR), Scanning electron microscopy (SEM) and X-ray fluorescence spectrometer (XRF). Fr… Show more

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Cited by 21 publications
(15 citation statements)
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References 48 publications
(54 reference statements)
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“…All the key bands of NaY zeolite [13] were observed in both NaY-1 and NaY-2, which slightly differed from that of NaY-S. The peaks at wavenumbers 3700-3200 cm −1 indicate the silanol groups in NaY-1 and NaY-2 [14]. Water molecules (H 2 O) were adsorbed on NaY-1 and NaY-2 surfaces, based on the appearance of peak at 1630 cm −1 which was assigned to the bending vibration of water molecules [15].…”
Section: Resultsmentioning
confidence: 91%
See 1 more Smart Citation
“…All the key bands of NaY zeolite [13] were observed in both NaY-1 and NaY-2, which slightly differed from that of NaY-S. The peaks at wavenumbers 3700-3200 cm −1 indicate the silanol groups in NaY-1 and NaY-2 [14]. Water molecules (H 2 O) were adsorbed on NaY-1 and NaY-2 surfaces, based on the appearance of peak at 1630 cm −1 which was assigned to the bending vibration of water molecules [15].…”
Section: Resultsmentioning
confidence: 91%
“…Water molecules (H 2 O) were adsorbed on NaY-1 and NaY-2 surfaces, based on the appearance of peak at 1630 cm −1 which was assigned to the bending vibration of water molecules [15]. Key bands of NaY zeolite at 1250-1000 and 850-550 cm −1 denote the asymmetrical and symmetrical stretching of SiO/AlO, respectively [14]. The peak at 500-600 cm −1 was attributed to the double six-member June 2020  Vol.…”
Section: Resultsmentioning
confidence: 99%
“…[157][158][159][160] Besides, their high thermal and chemical resistance and strong hydrophobicity due to the high Si/Al ratio and low content of charge-compensating cations in the ZSM-5 structure make them an interesting choice for researchers. 161,162 Adsorption properties of zeolites and their molecular-sized pores determine how molecules permeate through them. 126 Experiments have revealed that separation based on shape selectivity only occurs in high-silica zeolite types such as Al-free silicalite-1 (shape-selective MFI structure).…”
Section: Zeolites In Pressure-driven Membrane Technologymentioning
confidence: 99%
“…Scanning electron microscopy (SEM) characterization provided morphology information of the hierarchical ZSM-5 zeolite. Figure 3 clearly shows that the as-synthesized ZSM-5 zeolite had hexagonal structure and a coffin-like shape [25]. ZSM-5 zeolite synthesized using TPAOH template to form MFI framework has coffin-like morphology and has hexagonal crystal geometry [7].…”
Section: Catalyst Characterizationmentioning
confidence: 99%