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Chemphyschem. 2012 Feb;13(3):736-40. doi: 10.1002/cphc.201100783. Epub 2012 Jan 20.

Laser control of zeolite nucleation.

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1
Chemical and Environmental Engineering Department and Instituto de Nanociencia de Aragón (INA), Universidad de Zaragoza, Zaragoza, Spain.

Abstract

Precursor solutions for the synthesis of zeolites are irradiated by means of a Nd-YAG laser. These solutions are subsequently submitted to a hydrothermal treatment and the results analyzed by X-ray diffraction and electron microscopy. Laser irradiation promotes the formation of silica nanoparticles that nucleate into zeolite (silicalite-1), following a hydrothermal treatment. The average crystal size (in the 0.6-3.6 μm range) of the zeolite exponentially decreases as a function of laser irradiation time. In addition, a longer irradiation time results in a narrower crystal size distribution.

PMID:
22266775
DOI:
10.1002/cphc.201100783
[Indexed for MEDLINE]
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