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Updated: Jan 23, 2026

Synthesis Method for Cellulose Nanofiber Biotemplated Palladium Composite Aerogels
Published on: May 9, 2019
Preparation of a poly(ionic liquid)-functionalized cellulose aerogel and its application in protein enrichment and
Liwei Qian1, Miaoxiu Yang1, Haonan Chen1
1National Demonstration Center for Experimental Light Chemistry Engineering Education, Shaanxi University of Science and Technology, Xi'an, 710021, Shaanxi, China.
Abstract:
In this work, a novel poly(ionic liquid) with 1-vinyl-3-aminopropyl imidazolium cations was designed and used to modify cellulose aerogels via Schiff base reaction. The poly(ionic liquid) modified cellulose aerogels (PIL-CA) exhibited a well-interconnected porous structure and a high porosity of 86.2%. A zeta potential study showed the PIL-CA had a strong positive potential of more than 65 mV when its pH was below 6. Furthermore, after 350 min of adsorption experiments, the PIL-CA showed a superior adsorption capacity of 918 ± 8 mg g-1 towards bovine serum albumin (BSA) at pH 6 when its concentration was 1.5 mg m L-1. Finally, the PIL-CA was employed for the selective separation of target protein from a real serum sample, obtaining the BSA with high purity of over 98%.
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