Sol-gel derived sorbents

Sigman, Michael E.; Dindal, Amy B.

Sol-gel derived sorbents

Patent · Mon Nov 10 23:00:00 EST 2003

OSTI ID:1174575

Sigman, Michael E.; Dindal, Amy B.

Described is a method for producing copolymerized sol-gel derived sorbent particles for the production of copolymerized sol-gel derived sorbent material. The method for producing copolymerized sol-gel derived sorbent particles comprises adding a basic solution to an aqueous metal alkoxide mixture for a pH.ltoreq.8 to hydrolyze the metal alkoxides. Then, allowing the mixture to react at room temperature for a precalculated period of time for the mixture to undergo an increased in viscosity to obtain a desired pore size and surface area. The copolymerized mixture is then added to an immiscible, nonpolar solvent that has been heated to a sufficient temperature wherein the copolymerized mixture forms a solid upon the addition. The solid is recovered from the mixture, and is ready for use in an active sampling trap or activated for use in a passive sampling trap.

Research Organization:: Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)

Sponsoring Organization:: USDOE

DOE Contract Number:: AC05-96OR22464

Assignee:: UT-Battelle, LLC (Oak Ridge, TN)

Patent Number(s):: 6,645,908

Application Number:: 09/685,223

OSTI ID:: 1174575

Country of Publication:: United States

Language:: English

References (8)

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Capture of Greenhouse Gases by Novel Aerogel Sorbents Prepared by Sol-Gel Technology Attia, Yosry A. Processing and Utilization of High-Sulfur Coals V - Proceedings of the Fifth International Conference on Processing and Utilization of High-Sulfur Coals, October 25–28, 1993, Lexington, Kentucky, U.S.A., p. 467-484 https://doi.org/10.1016/B978-0-444-81476-0.50043-0	book	January 1993
Infrared study of methanol adsorption on Aerosil. I. Chemisorption at room temperature Borello, Enzo; Zecchina, Adriano; Morterra, Claudio The Journal of Physical Chemistry, Vol. 71, Issue 9 https://doi.org/10.1021/j100868a026	journal	August 1967
Sol−Gel Column Technology for Single-Step Deactivation, Coating, and Stationary-Phase Immobilization in High-Resolution Capillary Gas Chromatography Wang, Dongxin; Chong, Sau L.; Malik, Abdul Analytical Chemistry, Vol. 69, Issue 22 https://doi.org/10.1021/ac970614v	journal	November 1997
Inorganic-Organic Hybrid Aerogels Schubert, Ulrich; Schwertfeger, Fritz; Hüsing, Nicola MRS Proceedings, Vol. 346, p. 151 https://doi.org/10.1557/PROC-346-151	journal	January 1994
Reactive silica. I. Formation of a reactive silica by the thermal collapse of the methoxy groups of methylated Aerosil Morterra, Claudio; Low, Manfred J. D. The Journal of Physical Chemistry, Vol. 73, Issue 2 https://doi.org/10.1021/j100722a008	journal	February 1969
Organometallic-Derived Ceramics Sumio, Sakka; Toshinobu, Yoko Ceramics International, Vol. 17, Issue 4 https://doi.org/10.1016/0272-8842(91)90016-S	journal	January 1991
The Sol-Gel Preparation of Silica Gels Buckley, A. M.; Greenblatt, M. Journal of Chemical Education, Vol. 71, Issue 7 https://doi.org/10.1021/ed071p599	journal	July 1994

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Sol-gel derived sorbents

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