Preparation and characterization of (SBA-15)-La{sub 2}O{sub 3} host-guest composite materials

Journal Article · Mon Sep 15 00:00:00 EDT 2008 · Journal of Solid State Chemistry

DOI:https://doi.org/10.1016/j.jssc.2008.06.001· OSTI ID:21128465

Hui, Yu ^[1]

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1. Research Center for Nanotechnology, Changchun University of Science and Technology, Changchun 130022, Jilin Province (China)

Lanthanum oxide was successfully incorporated into an SBA-15 mesoporous molecular sieve via the microwave-assisted synthesis method (MASM) for the first time, and was compared with liquid-phase grafting and thermal diffusion methods. A series of characterizations were used to characterize the prepared materials. The results showed that the preparation of (SBA-15)-La{sub 2}O{sub 3} host-guest composite materials by MASM has the advantages of simpler operation, higher efficiency and more plentiful lanthanum oxide could be incorporated into SBA-15 compared with other methods. In the prepared host-guest (SBA-15)-La{sub 2}O{sub 3} materials, the frameworks of the host molecular sieve were kept intact, their structures were still kept high ordered and the guest lanthanum oxide locates inside the pores of the SBA-15. The sizes of the prepared (SBA-15)-La{sub 2}O{sub 3} samples were 340-357 nm. The prepared host-guest composite materials show the properties of luminescence, and the luminescent intensities are about 2 times of bulk La{sub 2}O{sub 3}. - Graphical abstract: Lanthanum oxide was successfully incorporated into SBA-15 mesoporous molecular sieve via the microwave-assisted synthesis method (MASM) for the first time. The results showed that the preparation of (SBA-15)-La{sub 2}O{sub 3} host-guest composite materials by MASM has the advantages of simpler operation, higher efficiency and more plentiful lanthanum oxide can be incorporated into SBA-15 compared with other methods.

• OSTI ID: 21128465
• Journal Information: Journal of Solid State Chemistry, Vol. 181, Issue 9; Other Information: DOI: 10.1016/j.jssc.2008.06.001; PII: S0022-4596(08)00296-X; Copyright (c) 2008 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved; Country of input: International Atomic Energy Agency (IAEA); ISSN 0022-4596
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
COMPOSITE MATERIALS
HOST
LANTHANUM OXIDES
LIQUIDS
LUMINESCENCE
MICROWAVE RADIATION
MOLECULAR SIEVES
OPTICAL PROPERTIES
SYNTHESIS
THERMAL DIFFUSION