Synthesis of Zeolite Nanomolecular Sieves of Different SiAl Ratios
Joint Authors
Han, Moon Hee
Cho, Churl-Hee
Sharma, Pankaj
Source
Issue
Vol. 2015, Issue 2015 (31 Dec. 2015), pp.1-9, 9 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2015-11-16
Country of Publication
Egypt
No. of Pages
9
Main Subjects
Abstract EN
Nanosized zeolite molecular sieves of different Si/Al ratios have been prepared using microwave hydrothermal reactor (MHR) for their greater application in separation and catalytic science.
The as-synthesized molecular sieves belong to four different type zeolite families: MFI (infinite and high silica), FAU (moderate silica), LTA (low silica and high alumina), and AFI (alumina rich and silica-free).
The phase purity of molecular sieves has been assessed by X-ray diffraction (XRD) analysis and morphological evaluation done by electron microscopy.
Broad XRD peaks reveal that each zeolite molecular sieve sample is composed of nanocrystallites.
Scanning electron microscopic images feature the notion that the incorporation of aluminum to MFI zeolite synthesis results in morphological change.
The crystals of pure silica MFI zeolite (silicalite-1) have hexagon lump/disk-like shape, whereas MFI zeolite particles with Si/Al molar ratios 250 and 100 have distorted hexagonal lump/disk and pseudo spherical shapes, respectively.
Furthermore, phase pure zeolite nanocrystals of octahedron (FAU), cubic (LTA), and rod (AFI) shape have been synthesized.
The average sizes of MFI, FAU, LTA, and AFI zeolite crystals are 250, 150, 50, and 3000 nm, respectively.
Although the length of AFI zeolite rods is in micron scale, the thickness and width are of a few nanometers.
American Psychological Association (APA)
Sharma, Pankaj& Han, Moon Hee& Cho, Churl-Hee. 2015. Synthesis of Zeolite Nanomolecular Sieves of Different SiAl Ratios. Journal of Nanomaterials،Vol. 2015, no. 2015, pp.1-9.
https://search.emarefa.net/detail/BIM-1069426
Modern Language Association (MLA)
Sharma, Pankaj…[et al.]. Synthesis of Zeolite Nanomolecular Sieves of Different SiAl Ratios. Journal of Nanomaterials No. 2015 (2015), pp.1-9.
https://search.emarefa.net/detail/BIM-1069426
American Medical Association (AMA)
Sharma, Pankaj& Han, Moon Hee& Cho, Churl-Hee. Synthesis of Zeolite Nanomolecular Sieves of Different SiAl Ratios. Journal of Nanomaterials. 2015. Vol. 2015, no. 2015, pp.1-9.
https://search.emarefa.net/detail/BIM-1069426
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1069426