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Nanosized metal oxides in the mesopores of MCM-41 and MCM-48 silicates

DSpace at IIT Bombay

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Title Nanosized metal oxides in the mesopores of MCM-41 and MCM-48 silicates
 
Creator DAPURKAR, SE
BADAMALI, SK
SELVAM, P
 
Subject optical-properties
molecular-sieves
semiconductor clusters
fe2o3 nanoparticles
zinc-oxide
iron-oxide
size
chemistry
cds
particles
nanosized metal oxides
mesoporous materials
mcm-41
mcm-48
host-guest chemistry
 
Description The present work describes the preparation and characterization of nanosized metal oxide particles (Fe2O3, ZnO and PbO) inside the mesopore channels of MCM-41 and MCM-48 silicate molecular sieves. The encapsulation of the metal oxides was carried out at room temperature by the incipient wetness method. Diffuse reflectance ultraviolet-visible spectroscopic studies showed a significant shift in the absorption band for the entrapped metal oxides as compared to the corresponding bulk oxides. Thus, confirming the quantum confinement of the incorporated nanoparticles in MCM-41 and MCM-48. (C) 2001 Elsevier Science B.V. All rights reserved.
 
Publisher ELSEVIER SCIENCE BV
 
Date 2011-10-22T11:50:30Z
2011-12-15T09:10:54Z
2011-10-22T11:50:30Z
2011-12-15T09:10:54Z
2001
 
Type Article; Proceedings Paper
 
Identifier CATALYSIS TODAY,68,63-68
0920-5861
http://dx.doi.org/10.1016/S0920-5861(01)00323-6
http://dspace.library.iitb.ac.in/xmlui/handle/10054/14892
http://hdl.handle.net/100/1727
 
Source Workshop on Nanostructured Materials and Catalysis,PERTH, AUSTRALIA,JUL 09-12, 2000
 
Language English