Реферат: Hierarchically porous Fe-silicalite-1 and beta zeolite materials built of uniform nanocrystals have been synthesized. The desired packing of nanobeads has been achieved as follows: patterning of uniform nanozeolites, template-directed synthesis and the combination of these two approaches – template directed assembly of nanozeolites. Hierarchically porous zeolite materials with random, close, spongy and openwork packing of nanocrystals have been designed. The synthesized samples were characterized by laser diffraction analysis, X-ray diffraction, scanning and transmission electron microscopy, energy-dispersive X-ray spectroscopy, argon and nitrogen adsorption measurements, inductively coupled plasma optical emission spectrometry, UV visible diffuse reflectance spectroscopy and temperature-programmed desorption of ammonia. Catalytic performance of hierarchically porous Fe-silicalites was studied in total liquid-phase oxidation of large organic molecules, including antibiotic – clarithromycin lactobionate and metal ion complexing agent – ethylenediaminetetraacetate (EDTA) by H2O2 at low temperatures (298-323 K) compared with the reference Fe-silicalite microspheres. Hierarchical Fe-silicalites were shown to be more efficient catalysts vs Fe-silicalite microbeads due to increasing catalytic sites accessibility.

Библиографическая ссылка: Babina K. , Rudina N.A. , Parkhomchuk E.V.
Design of Hierarchically Porous Zeolite Materials Built of Nanocrystals
International Symposium on Zeolite and Microporous Crystals 2015 (ZMPC2015) 28 Jun - 2 Jul 2015