Removal of cadmium(II) from aqueous solution by hydroxyapatite-encapsulated zinc ferrite (HAP/ZnFe2O4) nanocomposite: kinetics and isotherm study

In this study, HAP/ZnFe 2 O 4 nanocomposite has been synthesized in two simple steps. The different characterization techniques confirm the fabrication of HAP/ZnFe 2 O 4 magnetic binary nanocomposite. The composite was successfully applied as nanoadsorbent for the elimination of Cd(II) ions from its...

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Bibliographic Details
Published in:Environmental science and pollution research international 2020-10, Vol.27 (30), p.37977-37988
Main Authors: Das, Krishna Chandra, Dhar, Siddhartha S
Format: Article
Language:English
Subjects:
Aquatic Pollution
Aqueous solutions
Atmospheric Protection/Air Quality Control/Air Pollution
Cadmium
Earth and Environmental Science
Ecotoxicology
Environment
Environmental Chemistry
Environmental Health
Environmental science
Fabrication
Hydroxyapatite
Ions
Kinetics
Nanocomposites
Research Article
Sorbents
Sorption
Waste Water Technology
Wastewater
Water Management
Water Pollution Control
Zinc ferrites
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Summary:In this study, HAP/ZnFe 2 O 4 nanocomposite has been synthesized in two simple steps. The different characterization techniques confirm the fabrication of HAP/ZnFe 2 O 4 magnetic binary nanocomposite. The composite was successfully applied as nanoadsorbent for the elimination of Cd(II) ions from its aqueous solution. The composite was able to remove 89.6% of Cd(II) ions under optimum experimental conditions. The equilibrium sorption data were very much in agreement with the Freundlich adsorption model, and the maximum sorption capacity was recorded to be 120.33 mg/g. Kinetic data of the cadmium ion removal was well concurrent with the pseudo-second-order kinetics rate model. This magnetic HAP/ZnFe 2 O 4 nanocomposite can be applied as an environmentally friendly, low-cost, productive sorbent for the evacuation of Cd(II) ions from wastewater in light of its high sorption capacity.
ISSN:0944-1344
1614-7499
DOI:10.1007/s11356-020-09832-8