An attempt has been made to synthesize ceramic titania and zirconia
membranes by sol-gel process by filtering respective viscous colloidal
sol through microporous alumina support and gelling followed by sintering
at 400degreesC and 470degreesC respectively. The static charge on
the pores of the so formed membranes and the pore size distribution
determine the applicability in filtering colloidal solution. The
mean pore size from SEM were found to be 0.65 mum and 0.54 mum for
titania and zirconia membranes respectively with 1.47 x 10(7)/cm(2)
as pore density for both. The filtration characteristics during membrane
layer formation showed that the membrane layer formation started
after 35 minutes in the case of titania membrane and 40 minutes in
the case of zirconia membrane. From the gravimetric estimation of
water content of the membranes the thickness of the membrane was
found out to be 3 mum and the porosity was found out to be 0.30 for
both the cases. The particle charge density was estimated from the
zeta potential and the particle size. The pore charge density was
estimated from the particle charge density, pore density, pore diameter
and the thickness of the membrane layer. The membrane pore charge
density was found to vary between 3 to -1 mu Coulombs/cm(2) in the
case of titania membrane and 7 to - 0.5 mu Coulombs/cm(2) in the
case of zirconia membrane in the pH range 1-12.
VAN GODEWIJCKSTRAAT 30, 3311 GZ DORDRECHT, NETHERLANDS
year
2003
month
NOV
journal
JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY
number
3
pages
327-333
publisher
KLUWER ACADEMIC PUBL
volume
28
type
Article
issn
0928-0707
keywords-plus
ULTRAFILTRATION MEMBRANES
__markedentry
s0346678
timestamp
2008.12.17
cited-references
DONOUGH M, 1984, J MEMBRANE SCI, V21, P285. FREILICH D, 1978, J COLLOID
INTERF SCI, V64, P362. LARBOT A, 1989, J AM CERAM SOC, V72, P257.
NYSTROM M, 1989, COLLOID SURFACE, V36, P297. SESHADRI KS, 1998, J
MATER SCI TECHNOL, V14, P425. VERWEY EJW, 1948, THEORY STABILITY
LYO.
owner
s0346678
affiliation
Seshadri, KS (Reprint Author), Cent Waste Management Facil, Kalpakkam
603102, Tamil Nadu, India. Cent Waste Management Facil, Kalpakkam
603102, Tamil Nadu, India. Anna Univ, Dept Chem, Madras 600025, Tamil
Nadu, India. Indira Gandhi Ctr Atom Res, Mat Sci Lab, Kalpakkam 603102,
Tamil Nadu, India. BARCF, Water & Steam Chem Lab, Kalpakkam 603102,
Tamil Nadu, India. Anna Univ, Dept Chem Engn, Madras 600025, Tamil
Nadu, India.
%0 Journal Article
%1 Seshadri2003
%A Seshadri, KS
%A Selvaraj, M
%A Kesavamoorthy, R
%A Srinivasan, MP
%A Varatharajan, K
%A Lal, KB
%A Krishnasamy, V
%C VAN GODEWIJCKSTRAAT 30, 3311 GZ DORDRECHT, NETHERLANDS
%D 2003
%I KLUWER ACADEMIC PUBL
%J JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY
%K ceramic; charge density membrane; pore potential; sol-gel; zeta
%N 3
%P 327-333
%T Estimation and comparison of pore charge on titania and zirconia
membranes prepared by sol-gel route using zeta potential measurement
%V 28
%X An attempt has been made to synthesize ceramic titania and zirconia
membranes by sol-gel process by filtering respective viscous colloidal
sol through microporous alumina support and gelling followed by sintering
at 400degreesC and 470degreesC respectively. The static charge on
the pores of the so formed membranes and the pore size distribution
determine the applicability in filtering colloidal solution. The
mean pore size from SEM were found to be 0.65 mum and 0.54 mum for
titania and zirconia membranes respectively with 1.47 x 10(7)/cm(2)
as pore density for both. The filtration characteristics during membrane
layer formation showed that the membrane layer formation started
after 35 minutes in the case of titania membrane and 40 minutes in
the case of zirconia membrane. From the gravimetric estimation of
water content of the membranes the thickness of the membrane was
found out to be 3 mum and the porosity was found out to be 0.30 for
both the cases. The particle charge density was estimated from the
zeta potential and the particle size. The pore charge density was
estimated from the particle charge density, pore density, pore diameter
and the thickness of the membrane layer. The membrane pore charge
density was found to vary between 3 to -1 mu Coulombs/cm(2) in the
case of titania membrane and 7 to - 0.5 mu Coulombs/cm(2) in the
case of zirconia membrane in the pH range 1-12.
@article{Seshadri2003,
__markedentry = {[s0346678]},
abstract = {An attempt has been made to synthesize ceramic titania and zirconia
membranes by sol-gel process by filtering respective viscous colloidal
sol through microporous alumina support and gelling followed by sintering
at 400degreesC and 470degreesC respectively. The static charge on
the pores of the so formed membranes and the pore size distribution
determine the applicability in filtering colloidal solution. The
mean pore size from SEM were found to be 0.65 mum and 0.54 mum for
titania and zirconia membranes respectively with 1.47 x 10(7)/cm(2)
as pore density for both. The filtration characteristics during membrane
layer formation showed that the membrane layer formation started
after 35 minutes in the case of titania membrane and 40 minutes in
the case of zirconia membrane. From the gravimetric estimation of
water content of the membranes the thickness of the membrane was
found out to be 3 mum and the porosity was found out to be 0.30 for
both the cases. The particle charge density was estimated from the
zeta potential and the particle size. The pore charge density was
estimated from the particle charge density, pore density, pore diameter
and the thickness of the membrane layer. The membrane pore charge
density was found to vary between 3 to -1 mu Coulombs/cm(2) in the
case of titania membrane and 7 to - 0.5 mu Coulombs/cm(2) in the
case of zirconia membrane in the pH range 1-12.},
added-at = {2009-02-13T13:09:53.000+0100},
address = {VAN GODEWIJCKSTRAAT 30, 3311 GZ DORDRECHT, NETHERLANDS},
affiliation = {Seshadri, KS (Reprint Author), Cent Waste Management Facil, Kalpakkam
603102, Tamil Nadu, India. Cent Waste Management Facil, Kalpakkam
603102, Tamil Nadu, India. Anna Univ, Dept Chem, Madras 600025, Tamil
Nadu, India. Indira Gandhi Ctr Atom Res, Mat Sci Lab, Kalpakkam 603102,
Tamil Nadu, India. BARCF, Water \& Steam Chem Lab, Kalpakkam 603102,
Tamil Nadu, India. Anna Univ, Dept Chem Engn, Madras 600025, Tamil
Nadu, India.},
author = {Seshadri, KS and Selvaraj, M and Kesavamoorthy, R and Srinivasan, MP and Varatharajan, K and Lal, KB and Krishnasamy, V},
biburl = {https://www.bibsonomy.org/bibtex/202d4eddeec74605862ad9a34f4e3ec5d/almailer},
cited-references = {DONOUGH M, 1984, J MEMBRANE SCI, V21, P285. FREILICH D, 1978, J COLLOID
INTERF SCI, V64, P362. LARBOT A, 1989, J AM CERAM SOC, V72, P257.
NYSTROM M, 1989, COLLOID SURFACE, V36, P297. SESHADRI KS, 1998, J
MATER SCI TECHNOL, V14, P425. VERWEY EJW, 1948, THEORY STABILITY
LYO.},
description = {Initial Import},
interhash = {ed242558f01472860b959fa9ea29e95e},
intrahash = {02d4eddeec74605862ad9a34f4e3ec5d},
issn = {0928-0707},
journal = {JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY},
keywords = {ceramic; charge density membrane; pore potential; sol-gel; zeta},
keywords-plus = {ULTRAFILTRATION MEMBRANES},
month = NOV,
number = 3,
owner = {s0346678},
pages = {327-333},
publisher = {KLUWER ACADEMIC PUBL},
times-cited = {1},
timestamp = {2009-02-13T13:09:55.000+0100},
title = {Estimation and comparison of pore charge on titania and zirconia
membranes prepared by sol-gel route using zeta potential measurement},
type = {Article},
unique-id = {ISI:000186420400006},
volume = 28,
year = 2003
}