Method of making ionic liquid mediated sol-gel sorbents
Abstract
Ionic liquid (IL)-mediated sol-gel hybrid organic-inorganic materials present enormous potential for effective use in analytical microextraction. One obstacle to materializing this prospect arises from high viscosity of ILs significantly slowing down sol-gel reactions. A method was developed which provides phosphonium-based, pyridinium-based, and imidazolium-based IL-mediated advanced sol-gel organic-inorganic hybrid materials for capillary microextraction. Scanning electron microscopy results demonstrate that ILs can serve as porogenic agents in sol-gel reactions. IL-mediated sol-gel coatings prepared with silanol-terminated polymers provided up to 28 times higher extractions compared to analogous sol-gel coatings prepared without any IL in the sol solution. This study shows that IL-generated porous morphology alone is not enough to provide effective extraction media: careful choice of the organic polymer and the precursor with close sol-gel reactivity must be made to ensure effective chemical bonding of the organic polymer to the created sol-gel material to be able to provide the desired sorbent characteristics.
- Inventors:
- Issue Date:
- Research Org.:
- Oak Ridge Institute for Science and Education (ORISE), Oak Ridge, TN (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1342105
- Patent Number(s):
- 9555394
- Application Number:
- 14/046,302
- Assignee:
- University of South Florida
- Patent Classifications (CPCs):
-
B - PERFORMING OPERATIONS B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL B01J - CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY
G - PHYSICS G01 - MEASURING G01N - INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- DOE Contract Number:
- AC05-00OR22750
- Resource Type:
- Patent
- Resource Relation:
- Patent File Date: 2013 Oct 04
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY; 36 MATERIALS SCIENCE
Citation Formats
Malik, Abdul, and Shearrow, Anne M. Method of making ionic liquid mediated sol-gel sorbents. United States: N. p., 2017.
Web.
Malik, Abdul, & Shearrow, Anne M. Method of making ionic liquid mediated sol-gel sorbents. United States.
Malik, Abdul, and Shearrow, Anne M. Tue .
"Method of making ionic liquid mediated sol-gel sorbents". United States. https://www.osti.gov/servlets/purl/1342105.
@article{osti_1342105,
title = {Method of making ionic liquid mediated sol-gel sorbents},
author = {Malik, Abdul and Shearrow, Anne M.},
abstractNote = {Ionic liquid (IL)-mediated sol-gel hybrid organic-inorganic materials present enormous potential for effective use in analytical microextraction. One obstacle to materializing this prospect arises from high viscosity of ILs significantly slowing down sol-gel reactions. A method was developed which provides phosphonium-based, pyridinium-based, and imidazolium-based IL-mediated advanced sol-gel organic-inorganic hybrid materials for capillary microextraction. Scanning electron microscopy results demonstrate that ILs can serve as porogenic agents in sol-gel reactions. IL-mediated sol-gel coatings prepared with silanol-terminated polymers provided up to 28 times higher extractions compared to analogous sol-gel coatings prepared without any IL in the sol solution. This study shows that IL-generated porous morphology alone is not enough to provide effective extraction media: careful choice of the organic polymer and the precursor with close sol-gel reactivity must be made to ensure effective chemical bonding of the organic polymer to the created sol-gel material to be able to provide the desired sorbent characteristics.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2017},
month = {1}
}
Works referenced in this record:
The preparation of sol–gel materials doped with ionic liquids and trialkyl phosphine oxides for Yttrium(III) uptake
journal, December 2007
- Liu, Yinghui; Sun, Xiaoqi; Luo, Fang
- Analytica Chimica Acta, Vol. 604, Issue 2
Room-Temperature Ionic Liquids as Template to Monolithic Mesoporous Silica with Wormlike Pores via a Sol−Gel Nanocasting Technique
journal, March 2004
- Zhou, Yong; Schattka, Jan H.; Antonietti, Markus
- Nano Letters, Vol. 4, Issue 3, p. 477-481