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Highly accessible SnO2 nanoparticle embedded SBA-15 mesoporous silica as a superior photocatalyst

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Title Highly accessible SnO2 nanoparticle embedded SBA-15 mesoporous silica as a superior photocatalyst
 
Creator SRINIVASAN, NR
BANDYOPADHYAYA, R
 
Subject SnO2
SBA-15
Accessibility
Rhodamine B
Photodegradation
TIN OXIDE NANOPARTICLES
 
Description We address the accessibility of tin oxide (SnO2) nanoparticles synthesized inside the pores of mesoporous silica (SBA-15) host. On using a low-temperature route for in situ synthesis of SnO2 and hence eliminating interparticle aggregation, SnO2 nanoparticles of diameter much smaller (3.5 nm) than the cylindrical pore diameter (6.3 nm) of the SBA-15 could be synthesized. This enables molecules diffusing into the SBA-15 pores to access the very high specific surface area of SnO2: enabling the diffusing species to react easily with the latter. This is demonstrated by an enhanced photocatalytic degradation rate constant of an aqueous solution of rhodamine B dye, on contacting the latter with the SnO2-SBA-15 composite. (C) 2011 Elsevier Inc. All rights reserved.
 
Publisher ELSEVIER SCIENCE BV
 
Date 2014-10-14T17:33:57Z
2014-10-14T17:33:57Z
2012
 
Type Article
 
Identifier MICROPOROUS AND MESOPOROUS MATERIALS, 149(1)166-171
http://dx.doi.org/10.1016/j.micromeso.2011.06.037
http://dspace.library.iitb.ac.in/jspui/handle/100/14579
 
Language en