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Hierarchical porous zeolitic imidazolate framework nanoparticles for efficient adsorption of rare-earth elements
KTH, School of Engineering Sciences in Chemistry, Biotechnology and Health (CBH), Chemical Engineering, Resource recovery.
KTH, School of Engineering Sciences in Chemistry, Biotechnology and Health (CBH), Chemical Engineering.
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2019 (English)In: Microporous and Mesoporous Materials, ISSN 1387-1811, E-ISSN 1873-3093, Vol. 278, p. 175-184Article in journal (Refereed) Published
Abstract [en]

Hierarchical porous zeolitic imidazolate frameworks nanoparticles (ZIF-8 NPs) were synthesized at room temperature via a template-free approach under dynamic conditions (stirring) using water as a solvent. The ZIF-8 NPs were evaluated as adsorbents for rare earth elements (La3+, Sm3+ and Dy3+). Adsorption equilibrium was reached after 7h and high adsorption capacities were obtained for dysprosium and samarium (430.4 and 281.1 mg g(-1), respectively) and moderate adsorption capacity for lanthanum (28.8 mg g(-1)) at a pH of 7.0. The high adsorption capacitiese, as well as the high stability of ZIF-8 NPs, make the hierarchical ZIF-8 materials as an efficient adsorbent for the recovery of La3+, Sm3+ and Dy3+ from aqueous solution.

Place, publisher, year, edition, pages
Elsevier, 2019. Vol. 278, p. 175-184
Keywords [en]
Metal‒Organic frameworks, Zeolitic imidazolate frameworks, Adsorption, Rare earth elements, Hierarchical porous ZIF-8
National Category
Chemical Engineering
Identifiers
URN: urn:nbn:se:kth:diva-239161DOI: 10.1016/j.micromeso.2018.11.022ISI: 000459841900021Scopus ID: 2-s2.0-85057153247OAI: oai:DiVA.org:kth-239161DiVA, id: diva2:1263859
Note

QC 20181217

QC 20191004

Available from: 2018-11-16 Created: 2018-11-16 Last updated: 2019-10-04Bibliographically approved

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Abdel-Magied, Ahmed F.Nasser Abdelhamid, HaniAshour, Radwa M.Forsberg, Kerstin
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Resource recoveryChemical Engineering
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