Comparative adsorption study of Th4+ from aqueous solution by hydrothermally synthesized iron and aluminum oxide nanoparticles

Comparative adsorption study of Th4+ from aqueous solution by hydrothermally synthesized iron and... Comparative adsorption behaviors of synthesized iron nanoparticles (Fe-NPs) and aluminum nanoparticles (Al-NPs) on 4+ thorium(IV) (Th ) ion from aqueous solution have been studied using batch system. Both Fe-NPs and Al-NPs were syn- thesized by hydrothermal method and characterized by X-ray diffraction, X-ray fluorescence, scanning electron microscopy, Brunauer–Emmett–Teller and Fourier transform infrared. The results showed that more than 90% of synthesized nanopar- ticles were in the size range of 7–100 nm, when the specific surface area of Fe-NPs and Al-NPs was found to be 126.1 and 2 −1 4+ 37.4 m  g , respectively. The influence of variables namely sorbent weight, contact time and pH on the adsorption of Th ion was investigated. The pH dependence was observed in both Fe-NPs and Al-NPs adsorption processes, and the maximum adsorption occurred at pH 5 and 4, respectively. For both Fe-NPs and Al-NPs, kinetic data correspond well to the pseudo- second-order and the coefficient of determination ( R ) indicates that the developed model is appropriate. In addition, for both Fe-NPs and Al-NPs, the adsorption data were well fitted by the Langmuir isotherm. The maximum adsorption percent and −1 −1 adsorption capacity for Fe-NPs and Al-NPs were found to be 98%; 595 mg g and http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png International Journal of Environmental Science and Technology Springer Journals

Comparative adsorption study of Th4+ from aqueous solution by hydrothermally synthesized iron and aluminum oxide nanoparticles

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Publisher
Springer Journals
Copyright
Copyright © 2018 by Islamic Azad University (IAU)
Subject
Environment; Environment, general; Environmental Science and Engineering; Environmental Chemistry; Waste Water Technology / Water Pollution Control / Water Management / Aquatic Pollution; Soil Science & Conservation; Ecotoxicology
ISSN
1735-1472
eISSN
1735-2630
D.O.I.
10.1007/s13762-018-1824-6
Publisher site
See Article on Publisher Site

Abstract

Comparative adsorption behaviors of synthesized iron nanoparticles (Fe-NPs) and aluminum nanoparticles (Al-NPs) on 4+ thorium(IV) (Th ) ion from aqueous solution have been studied using batch system. Both Fe-NPs and Al-NPs were syn- thesized by hydrothermal method and characterized by X-ray diffraction, X-ray fluorescence, scanning electron microscopy, Brunauer–Emmett–Teller and Fourier transform infrared. The results showed that more than 90% of synthesized nanopar- ticles were in the size range of 7–100 nm, when the specific surface area of Fe-NPs and Al-NPs was found to be 126.1 and 2 −1 4+ 37.4 m  g , respectively. The influence of variables namely sorbent weight, contact time and pH on the adsorption of Th ion was investigated. The pH dependence was observed in both Fe-NPs and Al-NPs adsorption processes, and the maximum adsorption occurred at pH 5 and 4, respectively. For both Fe-NPs and Al-NPs, kinetic data correspond well to the pseudo- second-order and the coefficient of determination ( R ) indicates that the developed model is appropriate. In addition, for both Fe-NPs and Al-NPs, the adsorption data were well fitted by the Langmuir isotherm. The maximum adsorption percent and −1 −1 adsorption capacity for Fe-NPs and Al-NPs were found to be 98%; 595 mg g and

Journal

International Journal of Environmental Science and TechnologySpringer Journals

Published: Jun 4, 2018

References

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