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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Huijin Zhang Johnson, A.K. Kaur, M. Paszczynski, A.J. You Qiang |
| Copyright Year | 2011 |
| Description | Author affiliation: Environmental Biotechnology Institute, University of Idaho, Moscow, 83844 (Paszczynski, A.J.) || Department of Physics, University of Idaho, Moscow, 83844 USA (Kaur, M.) || Environmental Science Program, University of Idaho, Moscow, 83844 USA (Huijin Zhang) || Department of Physics and Environmental Science Program, University of Idaho, Moscow, 83844 USA (You Qiang) || Environmental Biotechnology Institute, University of Idaho, Moscow, 83844 USA (Johnson, A.K.) |
| Abstract | Novel magnetic sorbent—conjugates of surface functionalized magnetic nanoparticle-chelator—has been developed for separation of heavy metal ions from aqueous systems, which offers a simple, fast, effective and environmentally benign technique in wastewater treatment compared to traditional methods. In this paper, we have coupled diethylene triamine pentaacetic acid (DTPA) to double coated magnetic nanoparticles (dMNPs). The results confirmed that it is an excellent sorbent for cadmium and lead sorption, which can be easily manipulated and separated from aqueous solution by applying a small external magnetic field. The metal sorption was fast, reaching the equilibrium in 30 min and strictly conforming to the pseudo-second-order-reaction mechanism. The sorption capacity calculated by Langmuir model was 8.06 mg/g for Cd and 12.09 mg/g for Pb. The suitable pH range for Cd adsorption was pH 2–7, which was wider than that for Pb which was pH 3–6 |
| Starting Page | 1504 |
| Ending Page | 1507 |
| File Size | 301111 |
| Page Count | 4 |
| File Format | |
| ISBN | 9781457715143 |
| ISSN | 19449399 |
| e-ISBN | 9781457715167 |
| e-ISBN | 9781457715150 |
| DOI | 10.1109/NANO.2011.6144412 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2011-08-15 |
| Publisher Place | USA |
| Access Restriction | Subscribed |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Lead Magnetic separation Ions Nanoparticles Silicon compounds Iron |
| Content Type | Text |
| Resource Type | Article |
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