Influence of Synthesis Method on LTA Time-Dependent Stability

Molecules : a Journal of Synthetic Chemistry and Natural Product Chemistry
Claudia BelvisoFrancesco Cavalcante

Abstract

Time-stability of LTA zeolite formed by hydrothermal method with or without the action of ultrasonic irradiation was investigated by X-ray diffraction analysis (XRD) and scanning electron microscopy (SEM). The results show that 6 months after the synthesis by hydrothermal process with continuous sonication, LTA evolves into a more stable sodalite, whereas no differences are detected 12 months after LTA synthesis by conventional pre-fused hydrothermal process. These data confirm that using the two approaches, different mechanisms control both zeolite crystallization and time-stability of the newly-formed mineral at solid state. The results are particularly important in the light of the synthetic zeolite application.

References

Nov 19, 2009·Journal of the American Chemical Society·Heather GreerWuzong Zhou
Sep 21, 2010·Ultrasonics Sonochemistry·Claudia BelvisoSaverio Fiore
Jul 20, 2011·Journal of the American Chemical Society·Huiyong ChenMichael Tsapatsis
Jul 10, 2012·Ultrasonics Sonochemistry·Claudia BelvisoSaverio Fiore
Sep 8, 2012·Journal of the American Chemical Society·Limin RenFeng-Shou Xiao
Jul 12, 2013·Angewandte Chemie·Yinying JinFeng-Shou Xiao
Feb 21, 2014·Journal of the American Chemical Society·Qinming WuFeng-Shou Xiao
Oct 28, 2014·Chemical Communications : Chem Comm·Marlon T ConatoJeffrey D Rimer
Jan 7, 2015·Nature Materials·Hussein AwalaSvetlana Mintova

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Citations

Oct 22, 2020·Materials·Claudia BelvisoFrancesco Cavalcante
Oct 30, 2020·Materials·Claudia Belviso, Francesco Cavalcante

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Methods Mentioned

BETA
X-ray
differential
transmission electron microscopy
scanning electron microscopy

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