Synthesis and Characterization of Iron Oxide Nanoparticles and Applications in the Removal of Heavy Metals from Industrial Wastewater
This study investigated the applicability of maghemite (γ-Fe2O3) nanoparticles for the selective removal of toxic heavy metals from electroplating wastewater. The maghemite nanoparticles of 60 nm were synthesized using a coprecipitation method and characterized by X-ray diffraction (XRD) and scannin...
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| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2012-01-01
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| Series: | International Journal of Photoenergy |
| Online Access: | http://dx.doi.org/10.1155/2012/608298 |
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| _version_ | 1832565367843586048 |
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| author | Zuolian Cheng Annie Lai Kuan Tan Yong Tao Dan Shan Kok Eng Ting Xi Jiang Yin |
| author_facet | Zuolian Cheng Annie Lai Kuan Tan Yong Tao Dan Shan Kok Eng Ting Xi Jiang Yin |
| author_sort | Zuolian Cheng |
| collection | DOAJ |
| description | This study investigated the applicability of maghemite (γ-Fe2O3) nanoparticles for the selective removal of toxic heavy metals from electroplating wastewater. The maghemite nanoparticles of 60 nm were synthesized using a coprecipitation method and characterized by X-ray diffraction (XRD) and scanning electron microscopy (SEM) equipped with energy dispersive X-ray spectroscopy (EDX). Batch experiments were carried out for the removal of Pb2+ ions from aqueous solutions by maghemite nanoparticles. The effects of contact time, initial concentration of Pb2+ ions, solution pH, and salinity on the amount of Pb2+ removed were investigated. The adsorption process was found to be highly pH dependent, which made the nanoparticles selectively adsorb this metal from wastewater. The adsorption of Pb2+ reached equilibrium rapidly within 15 min and the adsorption data were well fitted with the Langmuir isotherm. |
| format | Article |
| id | doaj-art-36fddacf3f264764a4a17ce8a3c92475 |
| institution | Kabale University |
| issn | 1110-662X 1687-529X |
| language | English |
| publishDate | 2012-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | International Journal of Photoenergy |
| spelling | doaj-art-36fddacf3f264764a4a17ce8a3c924752025-02-03T01:07:51ZengWileyInternational Journal of Photoenergy1110-662X1687-529X2012-01-01201210.1155/2012/608298608298Synthesis and Characterization of Iron Oxide Nanoparticles and Applications in the Removal of Heavy Metals from Industrial WastewaterZuolian Cheng0Annie Lai Kuan Tan1Yong Tao2Dan Shan3Kok Eng Ting4Xi Jiang Yin5School of Chemical & Life Sciences, Singapore Polytechnic, 500 Dover Road, 139651, SingaporeSchool of Chemical & Life Sciences, Singapore Polytechnic, 500 Dover Road, 139651, SingaporeAdvanced Material Technology Centre, Singapore Polytechnic, 500 Dover Road, 139651, SingaporeAdvanced Material Technology Centre, Singapore Polytechnic, 500 Dover Road, 139651, SingaporeSchool of Chemical & Life Sciences, Singapore Polytechnic, 500 Dover Road, 139651, SingaporeAdvanced Material Technology Centre, Singapore Polytechnic, 500 Dover Road, 139651, SingaporeThis study investigated the applicability of maghemite (γ-Fe2O3) nanoparticles for the selective removal of toxic heavy metals from electroplating wastewater. The maghemite nanoparticles of 60 nm were synthesized using a coprecipitation method and characterized by X-ray diffraction (XRD) and scanning electron microscopy (SEM) equipped with energy dispersive X-ray spectroscopy (EDX). Batch experiments were carried out for the removal of Pb2+ ions from aqueous solutions by maghemite nanoparticles. The effects of contact time, initial concentration of Pb2+ ions, solution pH, and salinity on the amount of Pb2+ removed were investigated. The adsorption process was found to be highly pH dependent, which made the nanoparticles selectively adsorb this metal from wastewater. The adsorption of Pb2+ reached equilibrium rapidly within 15 min and the adsorption data were well fitted with the Langmuir isotherm.http://dx.doi.org/10.1155/2012/608298 |
| spellingShingle | Zuolian Cheng Annie Lai Kuan Tan Yong Tao Dan Shan Kok Eng Ting Xi Jiang Yin Synthesis and Characterization of Iron Oxide Nanoparticles and Applications in the Removal of Heavy Metals from Industrial Wastewater International Journal of Photoenergy |
| title | Synthesis and Characterization of Iron Oxide Nanoparticles and Applications in the Removal of Heavy Metals from Industrial Wastewater |
| title_full | Synthesis and Characterization of Iron Oxide Nanoparticles and Applications in the Removal of Heavy Metals from Industrial Wastewater |
| title_fullStr | Synthesis and Characterization of Iron Oxide Nanoparticles and Applications in the Removal of Heavy Metals from Industrial Wastewater |
| title_full_unstemmed | Synthesis and Characterization of Iron Oxide Nanoparticles and Applications in the Removal of Heavy Metals from Industrial Wastewater |
| title_short | Synthesis and Characterization of Iron Oxide Nanoparticles and Applications in the Removal of Heavy Metals from Industrial Wastewater |
| title_sort | synthesis and characterization of iron oxide nanoparticles and applications in the removal of heavy metals from industrial wastewater |
| url | http://dx.doi.org/10.1155/2012/608298 |
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