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Waste foundry sand/MgFe-layered double hydroxides composite material for efficient removal of Congo red dye from aqueous solution
Department of Mathematics, College of Education for Pure Sciences, University of Kirkuk, Kirkuk, Iraq.
Department of Environmental Engineering, College of Engineering, University of Baghdad, Baghdad, Iraq.
Department of Environmental Engineering, College of Engineering, University of Baghdad, Baghdad, Iraq.
Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Mining and Geotechnical Engineering.ORCID iD: 0000-0002-6790-2653
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2020 (English)In: Scientific Reports, ISSN 2045-2322, E-ISSN 2045-2322, Vol. 10, p. 1-12, article id 2042Article in journal (Refereed) Published
Abstract [en]

We aimed to obtain magnesium/iron (Mg/Fe)-layered double hydroxides (LDHs) nanoparticles-immobilized on waste foundry sand-a byproduct of the metal casting industry. XRD and FT-IR tests were applied to characterize the prepared sorbent. The results revealed that a new peak reflected LDHs nanoparticles. In addition, SEM-EDS mapping confirmed that the coating process was appropriate. Sorption tests for the interaction of this sorbent with an aqueous solution contaminated with Congo red dye revealed the efficacy of this material where the maximum adsorption capacity reached approximately 9127.08 mg/g. The pseudo-first-order and pseudo-second-order kinetic models helped to describe the sorption measurements, indicating that the physical and chemical forces governed the removal process.

Place, publisher, year, edition, pages
USA: Nature Publishing Group, 2020. Vol. 10, p. 1-12, article id 2042
Keywords [en]
Waste, double hydroxides, Congo red dye
National Category
Geotechnical Engineering
Research subject
Soil Mechanics
Identifiers
URN: urn:nbn:se:ltu:diva-77674DOI: 10.1038/s41598-020-58866-yOAI: oai:DiVA.org:ltu-77674DiVA, id: diva2:1392502
Note

Validerad;2020;Nivå 2;2020-02-17 (johcin)

Available from: 2020-02-07 Created: 2020-02-07 Last updated: 2020-02-17Bibliographically approved

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