NDLI: Synthesis and characterization of silica—titania core

Content Provider	Springer Nature Link
Author	Kalele, Suchita Dey, Ravi Hebalkar, Neha Urban, J. Gosavi, S. W. Kulkarni, S. K.
Copyright Year	2005
Abstract	Nearly monodispersed particles of silica were prepared and coated with uniform layers of titanium dioxide in anatase phase by hydrolysis and condensation of titanium butoxide. The coating thickness could be altered by adjusting the concentration of reactants (titanium butoxide and water) and the amount of added silica particles. Different coating thicknesses were deposited and studied using optical absorption spectroscopy, electron microscopy and Fourier transform infra-red spectroscopy. It was found that silica particles of size 170 ±5 nm were coated with 23±5 nm thick layer of titanium dioxide. Alternatively titania particles of size 340±5 nm were synthesized by controlled hydrolysis of titanium ethoxide in the presence of sodium chloride. These particles were further coated with 135±5 nm thick layer of silica to investigate changes in properties after changing the shell material
Starting Page	787
Ending Page	791
Page Count	5
File Format	PDF
ISSN	03044289
Journal	Pramana
Volume Number	65
Issue Number	5
e-ISSN	09737111
Language	English
Publisher	Springer India
Publisher Date	2005-01-01
Publisher Place	New Delhi
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Core-shell particles silica particles titania particles transmission electron microscopy Physics Astronomy Astrophysics
Content Type	Text
Resource Type	Article
Subject	Physics and Astronomy

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