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Hierarchical porous zeolitic imidazolate frameworks nanoparticles for efficient adsorption of rare-earth elements
Stockholms universitet, Naturvetenskapliga fakulteten, Institutionen för material- och miljökemi (MMK). Assuit University, Egypt.ORCID-id: 0000-0002-3106-8302
Stockholms universitet, Naturvetenskapliga fakulteten, Institutionen för material- och miljökemi (MMK).
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Rekke forfattare: 52019 (engelsk)Inngår i: Microporous and Mesoporous Materials, ISSN 1387-1811, E-ISSN 1873-3093, Vol. 278, s. 175-184Artikkel i tidsskrift (Fagfellevurdert) 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.

sted, utgiver, år, opplag, sider
2019. Vol. 278, s. 175-184
Emneord [en]
Metal-Organic frameworks, Zeolitic imidazolate frameworks, Adsorption, Rare earth elements, Hierarchical porous ZIF-8
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Identifikatorer
URN: urn:nbn:se:su:diva-167578DOI: 10.1016/j.micromeso.2018.11.022ISI: 000459841900021OAI: oai:DiVA.org:su-167578DiVA, id: diva2:1301995
Tilgjengelig fra: 2019-04-03 Laget: 2019-04-03 Sist oppdatert: 2019-04-03bibliografisk kontrollert

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