Studying Ni(II) Adsorption of Magnetite/Graphene Oxide/Chitosan Nanocomposite
In this paper, Fe3O4/graphene oxide/chitosan (FGC) nanocomposite was synthesized using coprecipitation method for application to removal of nickel ion (Ni(II)) from aqueous solution by adsorption process. To determine residue Ni(II) ions concentration in aqueous solution after adsorption process, we...
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| Format: | Article |
| Language: | English |
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Wiley
2019-01-01
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| Series: | Advances in Polymer Technology |
| Online Access: | http://dx.doi.org/10.1155/2019/8124351 |
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| author | Luyen T. Tran Hoang V. Tran Thu D. Le Giang L. Bach Lam D. Tran |
| author_facet | Luyen T. Tran Hoang V. Tran Thu D. Le Giang L. Bach Lam D. Tran |
| author_sort | Luyen T. Tran |
| collection | DOAJ |
| description | In this paper, Fe3O4/graphene oxide/chitosan (FGC) nanocomposite was synthesized using coprecipitation method for application to removal of nickel ion (Ni(II)) from aqueous solution by adsorption process. To determine residue Ni(II) ions concentration in aqueous solution after adsorption process, we have used UV-Vis spectrophotometric method, which is an effective and exact method for Ni(II) monitoring at low level by using dimethylglyoxime (DMG) as a complex reagent with Ni(II), which has a specific adsorption peak at the wavelength of 550 nm on UV-Vis spectra. A number of factors that influence Ni(II) ions adsorption capacity of FGC nanocomposite such as contact time, adsorption temperature, and adsorbent dosage were investigated. Results showed that the adsorption equilibrium is established after 70 minutes with the adsorbent dosage of 0.01 g.mL−1 at 30°C (the room temperature). The thermodynamic and kinetic parameters of this adsorption including free enthalpy change (∆G0), enthalpy change (∆H0), entropy change (∆S0), and reaction order with respect to Ni(II) ions were also determined. The Ni(II) ions adsorption equilibrium data are fitted well to the Langmuir isotherm and the maximum monolayer capacity (qmax) is 12.24 mg.g−1. Moreover, the FGC adsorbent can be recovered by an external magnet; in addition, it can be regenerated. The reusability of FGC was tested and results showed that 83.08% of removal efficiency was obtained after 3 cycles. The synthesized FGC nanocomposite with many advantages is a promising material for removal of heavy metal ions from aqueous solution to clean up the environment. |
| format | Article |
| id | doaj-art-c7b4bce6f59c4cfe87223cfd6b1f3316 |
| institution | Kabale University |
| issn | 0730-6679 1098-2329 |
| language | English |
| publishDate | 2019-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Polymer Technology |
| spelling | doaj-art-c7b4bce6f59c4cfe87223cfd6b1f33162025-02-03T01:11:29ZengWileyAdvances in Polymer Technology0730-66791098-23292019-01-01201910.1155/2019/81243518124351Studying Ni(II) Adsorption of Magnetite/Graphene Oxide/Chitosan NanocompositeLuyen T. Tran0Hoang V. Tran1Thu D. Le2Giang L. Bach3Lam D. Tran4School of Chemical Engineering, Hanoi University of Science and Technology, 1 Dai Co Viet Road, Hanoi, VietnamSchool of Chemical Engineering, Hanoi University of Science and Technology, 1 Dai Co Viet Road, Hanoi, VietnamSchool of Chemical Engineering, Hanoi University of Science and Technology, 1 Dai Co Viet Road, Hanoi, VietnamNguyen Tat Thanh University, 300A Nguyen Tat Thanh, Ho Chi Minh City, VietnamInstitute for Tropical Technology, VAST, 18 Hoang Quoc Viet, Cau Giay, Hanoi, VietnamIn this paper, Fe3O4/graphene oxide/chitosan (FGC) nanocomposite was synthesized using coprecipitation method for application to removal of nickel ion (Ni(II)) from aqueous solution by adsorption process. To determine residue Ni(II) ions concentration in aqueous solution after adsorption process, we have used UV-Vis spectrophotometric method, which is an effective and exact method for Ni(II) monitoring at low level by using dimethylglyoxime (DMG) as a complex reagent with Ni(II), which has a specific adsorption peak at the wavelength of 550 nm on UV-Vis spectra. A number of factors that influence Ni(II) ions adsorption capacity of FGC nanocomposite such as contact time, adsorption temperature, and adsorbent dosage were investigated. Results showed that the adsorption equilibrium is established after 70 minutes with the adsorbent dosage of 0.01 g.mL−1 at 30°C (the room temperature). The thermodynamic and kinetic parameters of this adsorption including free enthalpy change (∆G0), enthalpy change (∆H0), entropy change (∆S0), and reaction order with respect to Ni(II) ions were also determined. The Ni(II) ions adsorption equilibrium data are fitted well to the Langmuir isotherm and the maximum monolayer capacity (qmax) is 12.24 mg.g−1. Moreover, the FGC adsorbent can be recovered by an external magnet; in addition, it can be regenerated. The reusability of FGC was tested and results showed that 83.08% of removal efficiency was obtained after 3 cycles. The synthesized FGC nanocomposite with many advantages is a promising material for removal of heavy metal ions from aqueous solution to clean up the environment.http://dx.doi.org/10.1155/2019/8124351 |
| spellingShingle | Luyen T. Tran Hoang V. Tran Thu D. Le Giang L. Bach Lam D. Tran Studying Ni(II) Adsorption of Magnetite/Graphene Oxide/Chitosan Nanocomposite Advances in Polymer Technology |
| title | Studying Ni(II) Adsorption of Magnetite/Graphene Oxide/Chitosan Nanocomposite |
| title_full | Studying Ni(II) Adsorption of Magnetite/Graphene Oxide/Chitosan Nanocomposite |
| title_fullStr | Studying Ni(II) Adsorption of Magnetite/Graphene Oxide/Chitosan Nanocomposite |
| title_full_unstemmed | Studying Ni(II) Adsorption of Magnetite/Graphene Oxide/Chitosan Nanocomposite |
| title_short | Studying Ni(II) Adsorption of Magnetite/Graphene Oxide/Chitosan Nanocomposite |
| title_sort | studying ni ii adsorption of magnetite graphene oxide chitosan nanocomposite |
| url | http://dx.doi.org/10.1155/2019/8124351 |
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