NDLI: Structural characteristics of modified natural zeolite

Content Provider	Springer Nature Link
Author	Mockovčiaková, Annamária Matik, Marek Orolívá, Zuzana Hudec, Pavol Kmecová, Erika
Copyright Year	2007
Abstract	Natural zeolite of Slovak provenience has been modified with magnetic nanoparticles at selected temperatures of 20, 50 and 85 °C with the aim to enhance its sorption properties. The pore, surface and structural properties of zeolite/iron oxide composite were characterized using nitrogen adsorption measurements, electron probe microanalysis and powder X-ray diffraction. The crystallinity of the host zeolite was strongly influenced by the temperature of iron oxide particles precipitation, but it was still retained. It followed from the nitrogen adsorption measurements that the surface area and the pore volume of zeolite composites have increased in relation to the precipitation temperature, the best sorption properties were revealed at the composite prepared at 85 °C. As followed also from the SEM images, the iron oxide nanoparticles being of size 30 nm are forming mesoporous aggregates adsorbed on the zeolite surface. Fractal analysis used to describe the modified geometry of zeolite composites has given the values of surface fractal dimension between 2.36 and 2.51.
Starting Page	559
Ending Page	564
Page Count	6
File Format	PDF
ISSN	13802224
Journal	Journal of Porous Materials
Volume Number	15
Issue Number	5
e-ISSN	15734854
Language	English
Publisher	Springer US
Publisher Date	2007-05-30
Publisher Place	Boston
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Modification of zeolite Iron oxide nanoparticles Surface and pore structure characteristics Physical Chemistry Characterization and Evaluation of Materials Catalysis
Content Type	Text
Resource Type	Article
Subject	Mechanics of Materials Materials Science Mechanical Engineering

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