MWCNTs-Fe3O4 nanocomposite for Hg(II) high adsorption efficiency
Magnetic carbon nanotubes composite (MWCNTs-Fe3O4) was successfully prepared and characterized using different techniques. MWCNTs-Fe3O4 displays entangled network of oxidized MWCNTs attached with Fe3O4 clusters with specific surface area of 92 m2 g−1. The adsorption performance of as prepared compos...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2018
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| Subjects: | |
| Online Access: | http://umpir.ump.edu.my/id/eprint/22121/ http://umpir.ump.edu.my/id/eprint/22121/ http://umpir.ump.edu.my/id/eprint/22121/ http://umpir.ump.edu.my/id/eprint/22121/1/MWCNTs-Fe3O4%20nanocomposite%20for%20Hg%28II%29%20high%20adsorption%20efficiency1.pdf |
| Summary: | Magnetic carbon nanotubes composite (MWCNTs-Fe3O4) was successfully prepared and characterized using different techniques. MWCNTs-Fe3O4 displays entangled network of oxidized MWCNTs attached with Fe3O4 clusters with specific surface area of 92 m2 g−1. The adsorption performance of as prepared composite was investigated for Hg(II) removal. Several experimental factors affecting Hg(II) adsorption process by MWCNTs-Fe3O4 were studied including, adsorbent dosage, contact time, pH and metal ion concentration. A high adsorption capacity of 238.78 mg g−1 was obtained according to Langmuir model. In addition, pseudo-second-order and the Langmuir isotherm model were used to fit the adsorption kinetic and equilibrium data, respectively. The results recommend the successful application of MWCNTs-Fe3O4 for Hg(II) removal via batch adsorption technique. |
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