Journal
JOURNAL OF HAZARDOUS MATERIALS
Volume 260, Issue -, Pages 195-201Publisher
ELSEVIER
DOI: 10.1016/j.jhazmat.2013.05.024
Keywords
Cellulose hydrogel; TEMPO-mediated oxidation; Heavy metal ion; Adsorbent
Categories
Funding
- JSPS
- [23580226]
- [21228007]
- [24-7759]
- Grants-in-Aid for Scientific Research [23688020, 21228007, 12J07759] Funding Source: KAKEN
Ask authors/readers for more resources
Nitroxy radical catalyzed oxidation with hypochlorite/bromide (TEMPO-mediated oxidation) was performed on a cellulose hydrogel prepared using LiOH/urea solvent. TEMPO oxidation successfully introduced carboxyl groups onto the surface of the cellulose hydrogel with retention of the gel structure and its nanoporous property. The equilibrium measurement of Cu2+ adsorption showed favorable interaction with Cu2+ and high maximum adsorption capacity. In addition, over 98% of the adsorbed Cu2+ was recovered using acid treatment, and the subsequent washing allowed the TEMPO-oxidized gels to be used repeatedly. Furthermore, the TEMPO-oxidized cellulose hydrogel showed high adsorption capacity for other toxic metal ions such as Zn2+, Fe3+, Cd2+, and Cs+. (C) 2013 Elsevier B.V. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available