Abstract
Separation media based on hierarchically porous titania (TiO2) monoliths for highperformance liquid chromatography (HPLC) have been successfully fabricated by the sol-gel process of titanium alkoxide in a mild condition utilizing a chelating agent and mineral salt. The as-gelled TiO 2 monoliths were subjected to a simple solvent exchange process from ethanol (EtOH) to H2O followed by drying and calcination. The resultant monolithic TiO2 columns consist of anatase crystallites with the typical specific surface area of more than 200m2/g. The resultant monolithic TiO2 column calcined at 200 and 400°C exhibited a good separation performance for organophosphates as well as for polar benzene derivatives in the normal-phase mode.
| Original language | English |
|---|---|
| Pages (from-to) | 3004-3010 |
| Number of pages | 7 |
| Journal | Journal of Separation Science |
| Volume | 34 |
| Issue number | 21 |
| DOIs | |
| Publication status | Published - Nov 2011 |
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All Science Journal Classification (ASJC) codes
- Analytical Chemistry
- Filtration and Separation
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New hierarchically porous titania monoliths for chromatographic separation media. / Hasegawa, George; Morisato, Kei; Kanamori, Kazuyoshi; Nakanishi, Kazuki.
In: Journal of Separation Science, Vol. 34, No. 21, 11.2011, p. 3004-3010.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - New hierarchically porous titania monoliths for chromatographic separation media
AU - Hasegawa, George
AU - Morisato, Kei
AU - Kanamori, Kazuyoshi
AU - Nakanishi, Kazuki
PY - 2011/11
Y1 - 2011/11
N2 - Separation media based on hierarchically porous titania (TiO2) monoliths for highperformance liquid chromatography (HPLC) have been successfully fabricated by the sol-gel process of titanium alkoxide in a mild condition utilizing a chelating agent and mineral salt. The as-gelled TiO 2 monoliths were subjected to a simple solvent exchange process from ethanol (EtOH) to H2O followed by drying and calcination. The resultant monolithic TiO2 columns consist of anatase crystallites with the typical specific surface area of more than 200m2/g. The resultant monolithic TiO2 column calcined at 200 and 400°C exhibited a good separation performance for organophosphates as well as for polar benzene derivatives in the normal-phase mode.
AB - Separation media based on hierarchically porous titania (TiO2) monoliths for highperformance liquid chromatography (HPLC) have been successfully fabricated by the sol-gel process of titanium alkoxide in a mild condition utilizing a chelating agent and mineral salt. The as-gelled TiO 2 monoliths were subjected to a simple solvent exchange process from ethanol (EtOH) to H2O followed by drying and calcination. The resultant monolithic TiO2 columns consist of anatase crystallites with the typical specific surface area of more than 200m2/g. The resultant monolithic TiO2 column calcined at 200 and 400°C exhibited a good separation performance for organophosphates as well as for polar benzene derivatives in the normal-phase mode.
UR - http://www.scopus.com/inward/record.url?scp=84855475294&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84855475294&partnerID=8YFLogxK
U2 - 10.1002/jssc.201100538
DO - 10.1002/jssc.201100538
M3 - Article
AN - SCOPUS:84855475294
VL - 34
SP - 3004
EP - 3010
JO - Journal of Separation Science
JF - Journal of Separation Science
SN - 1615-9306
IS - 21
ER -