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Updated: Jul 29, 2025
Immobilization of Multi-biocatalysts in Alginate Beads for Cofactor Regeneration and Improved Reusability
Published on: April 22, 2016
One-step quaternization and macromolecular reconstruction to prepare micro-/nano-porous cellulose beads from
Yaqi Gong1, Jun Yuan1, Ying Pei2
1School of Chemical Engineering and Pharmacy, Wuhan Institute of Technology, LiuFang Campus, No.206, Guanggu 1st road, Donghu New & High Technology Development Zone, Wuhan 430205, Hubei Province, PR China; Key Laboratory of Novel Biomass-based Environmental and Energy Materials in Petroleum and Chemical Industry, Wuhan Institute of Technology, LiuFang Campus, No.206, Guanggu 1st road, Donghu New & High Technology Development Zone, Wuhan 430205, Hubei Province, PR China.
Abstract:
Designing advanced functional cellulose-based materials by one-step homogeneous preparation technology is a great challenge since cellulose is insoluble in common solvents or difficult to regenerate and shape. Quaternized cellulose beads (QCB) were prepared from a homogeneous solution by one-step cellulose quaternization homogeneous modification and macromolecules' reconstruction technology. Morphological and structural characterizations of QCB were conducted by SEM, FTIR and XPS, etc. The adsorption behavior of QCB was studied using amoxicillin (AMX) as a model molecule. The adsorption of QCB for AMX was multilayer adsorption controlled by both physical adsorption and chemical adsorption. The removal efficiency for 60 mg L-1 AMX reached 98.60 % through electrostatic interaction, and the adsorption capacity reached 30.23 mg g-1. AMX adsorption was almost reversible without loss of binding efficiency after three cycles. This facile and green method may offer a promising strategy for the development of functional cellulose materials.
