Rapid and manual-shaking exfoliation of amidoximated cellulose nanofibrils for a large-capacity filtration capture of uranium

The efficient extraction of the aquatic uranium element has drawn growing research interest because of its importance for both nuclear energy acquirement and water environmental remediation. Large-capacity, rapid filtration adsorption is promising, but remains challenging in capturing aquatic uraniu...

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Published in:Journal of materials chemistry. A, Materials for energy and sustainability Materials for energy and sustainability, 2022-04, Vol.1 (14), p.792-7927
Main Authors: Zhang, Weihua, Han, Xiao, You, Jun, Zhang, Xiaofang, Pei, Danfeng, Willför, Stefan, Li, Mingjie, Xu, Chunlin, Li, Chaoxu
Format: Article
Language:English
Subjects:
Adsorption
Cellulose
Dispersion
Energy efficiency
Environmental cleanup
Exfoliation
Fibrils
Filtration
Ions
Nuclear energy
Nuclear reactors
Organic solvents
Shaking
Uranium
Water purification
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Summary:The efficient extraction of the aquatic uranium element has drawn growing research interest because of its importance for both nuclear energy acquirement and water environmental remediation. Large-capacity, rapid filtration adsorption is promising, but remains challenging in capturing aquatic uranium ions. Herein, cyanoethyl substitution was found to enable the rapid exfoliation of cyanoethyl cellulose nanofibrils by mild shear ( e.g. , manual shake and homogenization) within 30 min with a conversion of up to ∼90% and unique re-dispersibility in many organic solvents. After hydrolyzing cyanoethyl into amidoxime, the resultant amidoximated cellulose nanofibrils, serving as a novel type of green absorbent, exhibited rapid kinetics (
ISSN:2050-7488
2050-7496
DOI:10.1039/d1ta10357a