Journal
CARBOHYDRATE POLYMERS
Volume 114, Issue -, Pages 521-529Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.carbpol.2014.08.072
Keywords
Fe3O4@CD MNPs; Co(II); 1-Naphthol; Simulated effluent; Magnetic separation
Categories
Funding
- National Natural Science Foundation of China [41203086]
- Jiangsu Provincial Key Laboratory of Radiation Medicine and Protection
- Priority Academic Program Development of Jiangsu Higher Education Institutions
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Herein, beta-cyclodextrin (beta-CD) was introduced on the surfaces of Fe3O4 particles via the chemical co-precipitation approach. The as-prepared Fe3O4@CD MNPs can be easily separated from the aqueous phase with a magnet. The removal performance of Fe3O4@CD MNPs toward Co(II) and 1-naphthol were investigated by using the batch technique. The maximum sorption capacities of Fe3O4@CD MNPs toward Co(II) and 1-naphthol are higher than a series of adsorbent materials. The simultaneous removal of Co(II) and 1-naphthol is achieved via the binding of Co(II) on the external surface sites of Fe3O4@CD MNPs and the incorporation of 1-naphthol into the hydrophobic cavity of surface-coated beta-CD. The Fe3O4@CD MNPs exhibit favorable removal performance toward Co(II) and 1-naphthol from the simulated effluent. The experimental results herein suggest that Fe3O4@CD MNPs can be used as cost-effective material for the purification of co-contaminated water systems. (C) 2014 Elsevier Ltd. All rights reserved.
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