Cited Article: Holt JK. Fast mass transport through sub-2-nanometer carbon nanotubes
Alert Expires: 18 OCT 2009
Number of Citing Articles: 1 new records this week (1 in this e-mail)
Organization ID: 3b97d1bbc1878baed0ab183d8b03130b
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AU Lind, ML
Ghosh, AK
Jawor, A
Huang, XF
Hou, W
Yang, Y
Hoek, EMV
AF Lind, Mary L.
Ghosh, Asim K.
Jawor, Anna
Huang, Xiaofei
Hou, William
Yang, Yang
Hoek, Eric M. V.
TI Influence of Zeolite Crystal Size on Zeolite-Polyamide Thin Film
Nanocomposite Membranes
SO LANGMUIR
LA English
DT Article
ID REVERSE-OSMOSIS MEMBRANES; COMPOSITE MEMBRANES; NANOFILTRATION
MEMBRANES; CARBON NANOTUBES; GAS SEPARATION; NANOPARTICLES; IMPACTS
AB Zeolite-polyamide thin film nanocomposite membranes were coated onto
polysulfone ultrafiltration membranes by interfacial polymerization of
amine and acid chloride monomers in the presence of Linde type A
zeolite nanocrystals. A matrix of three different interfacial
polymerization chemistries and three different-sized zeolite crystals
produced nanocomposite thin films with widely varying structure,
morphology, charge, hydrophilicity, and separation performance
(evaluated as reverse osmosis membranes). Pure polyamide film
properties were tuned by changing polymerization chemistry, but
addition of zeolite nanoparticles produced even greater changes in
separation performance, surface chemistry, and film morphology. For
fixed polymer chemistry, addition of zeolite nanoparticles formed more
permeable, negatively charged, and thicker polyamide films. Smaller
zeolites produced greater permeability enhancements, but larger
zeolites produced more favorable Surface properties; hence,
nanoparticle size may be considered an additional "degree of freedom"
in designing thin film nanocomposite reverse osmosis membranes. The
data presented offer additional support for the hypothesis that zeolite
crystals alter polyamide thin film structure when they are present
during the interfacial polymerization reaction.
C1 [Lind, Mary L.; Ghosh, Asim K.; Jawor, Anna; Huang, Xiaofei; Hoek, Eric M. V.] Univ Calif Los Angeles, Dept Civil & Environm Engn, Los Angeles, CA 90095 USA.
[Lind, Mary L.; Ghosh, Asim K.; Jawor, Anna; Huang, Xiaofei; Hoek, Eric M. V.] Univ Calif Los Angeles, Calif NanoSyst Inst, Los Angeles, CA 90095 USA.
[Hou, William; Yang, Yang] Univ Calif Los Angeles, Dept Mat Sci & Engn, Los Angeles, CA 90095 USA.
RP Hoek, EMV, Univ Calif Los Angeles, Dept Civil & Environm Engn, 5732-G
Boelter Hall,POB 951593, Los Angeles, CA 90095 USA.
EM emvhoek@ucla.edu
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MULDER J, 1996, BASIC PRINCIPLES MEM, P487
OSTOMEL TA, 2006, J THROMB THROMBOLYS, V22, P55, DOI
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SINGH PS, 2008, J COLLOID INTERF SCI, V326, P176, DOI
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NR 27
TC 0
PU AMER CHEMICAL SOC; 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 0743-7463
DI 10.1021/la900938x
PD SEP 1
VL 25
IS 17
BP 10139
EP 10145
SC Chemistry, Physical
GA 486LK
UT ISI:000269197500071
ER
EF
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