Abstract
Choline chloride (ChCl) with three alcohol-based deep eutectic solvents (DESs) was applied as a new type of green solvent for the modification of mesoporous silica spheres. The mesoporous silica spheres were characterized by field emission scanning electron microscopy and Brunauer-Emmett-Teller surface area analysis. Many uniform and mesoporous silica spheres were obtained with a ChCl-1,2-butanediol DES as a reactant. The DES-modified mesoporous silica spheres were used for the adsorption of polysaccharides (alginic acid, fucoidan, and laminarin). The adsorption results show that the ChCl-1,2-butanediol DES-based silica spheres had stable interactions with the target compounds. A comparison of the three sorbents as size exclusion chromatography packing materials showed that the ChCl-1,2-butanediol DES-based silica spheres produced good resolution of the three test polysaccharides and exhibited the best separation capability. This was attributed to the uniform mesoporous structure of the ChCl-1,2-butanediol DES-based silica spheres. Therefore, more DESs should be applied to the preparation of mesoporous silica spheres in future studies.
Original language | English |
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Article number | 42203 |
Journal | Journal of Applied Polymer Science |
Volume | 132 |
Issue number | 27 |
DOIs | |
State | Published - 1 Jul 2015 |
Bibliographical note
Publisher Copyright:© 2015 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2015, 132, 42203. © 2015 Wiley Periodicals, Inc.
Keywords
- adsorption
- amorphous
- applications
- packaging
- separation techniques