Enrichment of Polychlorinated Biphenyls from Aqueous Solutions Using Fe<sub>3</sub>O<sub>4</sub> Grafted Multiwalled Carbon Nanotubes with Poly Dimethyl Diallyl Ammonium Chloride
In this paper, Fe<sub>3</sub>O<sub>4</sub> nanoparticles (Fe<sub>3</sub>O<sub>4</sub> NPs) grafted carboxyl groups of multiwalled carbon nanotubes with cationic polyelectrolyte poly (dimet...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2012-05-01
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| Series: | International Journal of Molecular Sciences |
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| Online Access: | http://www.mdpi.com/1422-0067/13/5/6382 |
| _version_ | 1811244648550629376 |
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| author | Lei Zheng Ning Gan Tianhua Li Weiguo Sang Yuting Cao Shaolin Zeng |
| author_facet | Lei Zheng Ning Gan Tianhua Li Weiguo Sang Yuting Cao Shaolin Zeng |
| author_sort | Lei Zheng |
| collection | DOAJ |
| description | In this paper, Fe<sub>3</sub>O<sub>4</sub> nanoparticles (Fe<sub>3</sub>O<sub>4</sub> NPs) grafted carboxyl groups of multiwalled carbon nanotubes with cationic polyelectrolyte poly (dimethyldiallylammonium chloride) (PDDA) (MWCNTs-COO<sup>−</sup>/PDDA@Fe<sub>3</sub>O<sub>4</sub>), are successfully synthesized and used for the extraction of six kinds of major toxic polychorinated biphenyls (PCBs) from a large volume of water solution. The hydrophilicity of the PDDA cage can enhance the dispersibility of sorbents in water samples, and the superparamagnetism of the Fe<sub>3</sub>O<sub>4</sub> NPs facilitate magnetic separation which directly led to the simplification of the extraction procedure. With the magnetic solid-phase extraction (MSPE) technique based on the MWCNTs-COO<sup>−</sup>/PDDA@Fe<sub>3</sub>O<sub>4</sub> sorbents, it requires only 30 min to extract trace levels of PCBs from 500 mL water samples. When the eluate condensed to 1.0 mL, concentration factors for PCBs became over 500. The spiked recoveries of several real water samples for PCBs were in the range of 73.3–98.9% with relative standard deviations varying from 3.8% to 9.4%, reflecting good accuracy of the method. Therefore, preconcentration of trace level of PCBs by using this MWCNTs-COO<sup>−</sup>/PDDA@Fe<sub>3</sub>O<sub>4</sub> sorbent, which are stable for multiple reuses, from water solution can be performed. |
| first_indexed | 2024-04-12T14:28:50Z |
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| institution | Directory Open Access Journal |
| issn | 1422-0067 |
| language | English |
| last_indexed | 2024-04-12T14:28:50Z |
| publishDate | 2012-05-01 |
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| series | International Journal of Molecular Sciences |
| spelling | doaj.art-8b7803769d40443aa0659d83f321d91d2022-12-22T03:29:21ZengMDPI AGInternational Journal of Molecular Sciences1422-00672012-05-011356382639810.3390/ijms13056382Enrichment of Polychlorinated Biphenyls from Aqueous Solutions Using Fe<sub>3</sub>O<sub>4</sub> Grafted Multiwalled Carbon Nanotubes with Poly Dimethyl Diallyl Ammonium ChlorideLei ZhengNing GanTianhua LiWeiguo SangYuting CaoShaolin ZengIn this paper, Fe<sub>3</sub>O<sub>4</sub> nanoparticles (Fe<sub>3</sub>O<sub>4</sub> NPs) grafted carboxyl groups of multiwalled carbon nanotubes with cationic polyelectrolyte poly (dimethyldiallylammonium chloride) (PDDA) (MWCNTs-COO<sup>−</sup>/PDDA@Fe<sub>3</sub>O<sub>4</sub>), are successfully synthesized and used for the extraction of six kinds of major toxic polychorinated biphenyls (PCBs) from a large volume of water solution. The hydrophilicity of the PDDA cage can enhance the dispersibility of sorbents in water samples, and the superparamagnetism of the Fe<sub>3</sub>O<sub>4</sub> NPs facilitate magnetic separation which directly led to the simplification of the extraction procedure. With the magnetic solid-phase extraction (MSPE) technique based on the MWCNTs-COO<sup>−</sup>/PDDA@Fe<sub>3</sub>O<sub>4</sub> sorbents, it requires only 30 min to extract trace levels of PCBs from 500 mL water samples. When the eluate condensed to 1.0 mL, concentration factors for PCBs became over 500. The spiked recoveries of several real water samples for PCBs were in the range of 73.3–98.9% with relative standard deviations varying from 3.8% to 9.4%, reflecting good accuracy of the method. Therefore, preconcentration of trace level of PCBs by using this MWCNTs-COO<sup>−</sup>/PDDA@Fe<sub>3</sub>O<sub>4</sub> sorbent, which are stable for multiple reuses, from water solution can be performed.http://www.mdpi.com/1422-0067/13/5/6382Fe<sub>3</sub>O<sub>4</sub> nanoparticlesMWCNTssolid-phase extractionpolychorinated biphenylstrace levels |
| spellingShingle | Lei Zheng Ning Gan Tianhua Li Weiguo Sang Yuting Cao Shaolin Zeng Enrichment of Polychlorinated Biphenyls from Aqueous Solutions Using Fe<sub>3</sub>O<sub>4</sub> Grafted Multiwalled Carbon Nanotubes with Poly Dimethyl Diallyl Ammonium Chloride International Journal of Molecular Sciences Fe<sub>3</sub>O<sub>4</sub> nanoparticles MWCNTs solid-phase extraction polychorinated biphenyls trace levels |
| title | Enrichment of Polychlorinated Biphenyls from Aqueous Solutions Using Fe<sub>3</sub>O<sub>4</sub> Grafted Multiwalled Carbon Nanotubes with Poly Dimethyl Diallyl Ammonium Chloride |
| title_full | Enrichment of Polychlorinated Biphenyls from Aqueous Solutions Using Fe<sub>3</sub>O<sub>4</sub> Grafted Multiwalled Carbon Nanotubes with Poly Dimethyl Diallyl Ammonium Chloride |
| title_fullStr | Enrichment of Polychlorinated Biphenyls from Aqueous Solutions Using Fe<sub>3</sub>O<sub>4</sub> Grafted Multiwalled Carbon Nanotubes with Poly Dimethyl Diallyl Ammonium Chloride |
| title_full_unstemmed | Enrichment of Polychlorinated Biphenyls from Aqueous Solutions Using Fe<sub>3</sub>O<sub>4</sub> Grafted Multiwalled Carbon Nanotubes with Poly Dimethyl Diallyl Ammonium Chloride |
| title_short | Enrichment of Polychlorinated Biphenyls from Aqueous Solutions Using Fe<sub>3</sub>O<sub>4</sub> Grafted Multiwalled Carbon Nanotubes with Poly Dimethyl Diallyl Ammonium Chloride |
| title_sort | enrichment of polychlorinated biphenyls from aqueous solutions using fe lt sub gt 3 lt sub gt o lt sub gt 4 lt sub gt grafted multiwalled carbon nanotubes with poly dimethyl diallyl ammonium chloride |
| topic | Fe<sub>3</sub>O<sub>4</sub> nanoparticles MWCNTs solid-phase extraction polychorinated biphenyls trace levels |
| url | http://www.mdpi.com/1422-0067/13/5/6382 |
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