Journal
JOURNAL OF POROUS MATERIALS
Volume 29, Issue 3, Pages 907-919Publisher
SPRINGER
DOI: 10.1007/s10934-022-01218-0
Keywords
Y zeolite synthesis; Nanosized zeolite; Interparticle mesopores; Particle-size reduction; Alkalinity; Hydrothermal synthesis
Funding
- COLCIENCIAS [727]
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In this study, nanosized Y zeolites with high crystallinity and Si/Al ratios between 1.5 and 2.6 were synthesized in a relatively short time (3 days) using a simple, inexpensive, and environmentally friendly method without the use of organic compounds. The research focuses on understanding the effect of the variation in the amount of sodium aluminate, silica, and sodium hydroxide on the crystallization temperature, Si/Al ratio, and particle size of the resulting zeolite.
Nanosized Y zeolite is a material which could potentially be used as an adsorbent or catalyst in the oil industry thanks to its increased high external area and mesopore volume. However, a simple, inexpensive, and environmentally friendly method to synthesize this zeolite has not yet been reported. Currently, the synthesis methods used to obtain nanosized Y zeolite are based on the use of organic structure-directing agents, since the zeolites obtained without these compounds have low Si/Al ratios. Based on these considerations, in this work nanosized Y zeolites were synthesized with high crystallinity and Si/Al ratios between 1.5 and 2.6, without the use of organic compounds and in a relatively short time (3 days). The study focuses on understanding the variation in the crystallization temperature when the amount of sodium aluminate, silica and sodium hydroxide is modified in the synthesis and correlates this variation with the Si/Al ratio and the particle size of the resulting zeolite.
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