Removal of Cr (VI) from aqueous solutions by nano-sized magnetite modified with SDS
Background: Contamination of aquatic bodies with heavy metals is a serious environmental problem. Chromium is a common contaminant in ground and surface water, soil and wastewater. The aim of this study was to use magnetite nanoparticles modified by sodium dodecyl sulphate (SDS) for removal of hexav...
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doaj-b5722c708d6d4c80b555e9fd8c6f044a2020-11-24T22:27:35ZengBushehr University of Medical SciencesIranian South Medical Journal 1735-43741735-69542015-11-01185944959Removal of Cr (VI) from aqueous solutions by nano-sized magnetite modified with SDSAli Akbar Babaei0Zeinab Baboli1Mehdi Ahmadi2Nematollah Jaafarzadeh3Gholamreza Goudarzi4Azar Mostufi5 Department of Environmental Health Engineering, School of Public Health, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran<br> Environmental Technologies Research Center, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran Department of Environmental Health Engineering, Behbahan facult of Medical sciences, Behbahan, Iran. Department of Environmental Health Engineering, School of Public Health, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran<br> Environmental Technologies Research Center, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran Department of Environmental Health Engineering, School of Public Health, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran<br> Environmental Technologies Research Center, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran Department of Environmental Health Engineering, School of Public Health, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran<br> Environmental Technologies Research Center, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran Department of Pharmacy, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran. Background: Contamination of aquatic bodies with heavy metals is a serious environmental problem. Chromium is a common contaminant in ground and surface water, soil and wastewater. The aim of this study was to use magnetite nanoparticles modified by sodium dodecyl sulphate (SDS) for removal of hexavalent chromium from aqueous solutions and various factors affecting the uptake behavior such as pH, contact time, initial concentration of metal ions, adsorbent concentration, were studied. Materials & Methods: SDS modified magnetite nanoparticles were prepared by co-precipitation, and characterized by X-ray diffraction, SEM scaning electron microscopy. The XRD diffractogram showed purity of the magnetite nanoparticles and the SEM image showed that the modified magnetite particles were 50 nm. Results: The results showed that highest adsorption (99.7%) for Cr(VI) was occurred at pH=4, adsorbent dosage 2 g/L, initial concentration Cr(VI) 10 mg/L and contact time 60 min. The adsorption data was correlated to different non-linear isotherm and kinetic models and the data fitted better to the Freundlich isotherm model. The kinetics of the Cr(VI) adsorption followed Ho (Pseudo-second-order) model. Conclusion: The SDS modified magnetite nanoparticles appears to be very effective at removing the Cr(VI) from aqueous solution.http://ismj.bpums.ac.ir/browse.php?a_code=A-10-3-638&slc_lang=en&sid=1SDS modified magnetite nanoparticles Cr(VI) Adsorption Isotherm kinetic |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Ali Akbar Babaei Zeinab Baboli Mehdi Ahmadi Nematollah Jaafarzadeh Gholamreza Goudarzi Azar Mostufi |
spellingShingle |
Ali Akbar Babaei Zeinab Baboli Mehdi Ahmadi Nematollah Jaafarzadeh Gholamreza Goudarzi Azar Mostufi Removal of Cr (VI) from aqueous solutions by nano-sized magnetite modified with SDS Iranian South Medical Journal SDS modified magnetite nanoparticles Cr(VI) Adsorption Isotherm kinetic |
author_facet |
Ali Akbar Babaei Zeinab Baboli Mehdi Ahmadi Nematollah Jaafarzadeh Gholamreza Goudarzi Azar Mostufi |
author_sort |
Ali Akbar Babaei |
title |
Removal of Cr (VI) from aqueous solutions by nano-sized magnetite modified with SDS |
title_short |
Removal of Cr (VI) from aqueous solutions by nano-sized magnetite modified with SDS |
title_full |
Removal of Cr (VI) from aqueous solutions by nano-sized magnetite modified with SDS |
title_fullStr |
Removal of Cr (VI) from aqueous solutions by nano-sized magnetite modified with SDS |
title_full_unstemmed |
Removal of Cr (VI) from aqueous solutions by nano-sized magnetite modified with SDS |
title_sort |
removal of cr (vi) from aqueous solutions by nano-sized magnetite modified with sds |
publisher |
Bushehr University of Medical Sciences |
series |
Iranian South Medical Journal |
issn |
1735-4374 1735-6954 |
publishDate |
2015-11-01 |
description |
Background: Contamination of aquatic bodies with heavy metals is a serious environmental problem. Chromium is a common contaminant in ground and surface water, soil and wastewater. The aim of this study was to use magnetite nanoparticles modified by sodium dodecyl sulphate (SDS) for removal of hexavalent chromium from aqueous solutions and various factors affecting the uptake behavior such as pH, contact time, initial concentration of metal ions, adsorbent concentration, were studied.
Materials & Methods: SDS modified magnetite nanoparticles were prepared by co-precipitation, and characterized by X-ray diffraction, SEM scaning electron microscopy. The XRD diffractogram showed purity of the magnetite nanoparticles and the SEM image showed that the modified magnetite particles were 50 nm.
Results: The results showed that highest adsorption (99.7%) for Cr(VI) was occurred at pH=4, adsorbent dosage 2 g/L, initial concentration Cr(VI) 10 mg/L and contact time 60 min. The adsorption data was correlated to different non-linear isotherm and kinetic models and the data fitted better to the Freundlich isotherm model. The kinetics of the Cr(VI) adsorption followed Ho (Pseudo-second-order) model.
Conclusion: The SDS modified magnetite nanoparticles appears to be very effective at removing the Cr(VI) from aqueous solution. |
topic |
SDS modified magnetite nanoparticles Cr(VI) Adsorption Isotherm kinetic |
url |
http://ismj.bpums.ac.ir/browse.php?a_code=A-10-3-638&slc_lang=en&sid=1 |
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