Selective adsorption of potassium and rubidium by metal–organic frameworks supported supramolecular materials

Selective adsorption of potassium and rubidium by metal–organic frameworks supported supramolecular materials

A new MOFs-based adsorbent UiO-66@iPCC5 was prepared by hybridization of 25,27-bis( iso -propoxyl)-calix[4]arene-26,28-crown-5 (iPCC5) into the pores of UiO-66, one of the Zr-MOFs. The adsorption of K and Rb onto UiO-66@iPCC5 from 0.4 to 6.0 M HNO 3 was studied. UiO-66@iPCC5 showed strong adsorption...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Veröffentlicht in:Journal of radioanalytical and nuclear chemistry 2021-07, Vol.329 (1), p.359-370
Hauptverfasser: Wang, Zheng, Zhang, Anyun, Su, Jiatian, Chen, Rongrong
Format: Artikel
Sprache:eng
Schlagworte:
Adsorption
Chemistry
Chemistry and Materials Science
Diagnostic Radiology
Hadrons
Heavy Ions
Inorganic Chemistry
Metal-organic frameworks
Nuclear Chemistry
Nuclear energy
Nuclear Physics
Physical Chemistry
Rubidium
Selective adsorption
Selectivity
Zirconium
Online-Zugang:Volltext
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
Beschreibung
Zusammenfassung:A new MOFs-based adsorbent UiO-66@iPCC5 was prepared by hybridization of 25,27-bis( iso -propoxyl)-calix[4]arene-26,28-crown-5 (iPCC5) into the pores of UiO-66, one of the Zr-MOFs. The adsorption of K and Rb onto UiO-66@iPCC5 from 0.4 to 6.0 M HNO 3 was studied. UiO-66@iPCC5 showed strong adsorption ability and selectivity for K and Rb over others. The removal efficiency was 98.19% for K and 98.25% for Rb. The adsorption mechanism was discussed by XPS and EDS. The adsorption isotherms of K and Rb well fitted with Langmuir model. The thermodynamics and kinetics of K and Rb adsorption onto UiO-66@iPCC5 were investigated.
ISSN:0236-5731
1588-2780
DOI:10.1007/s10967-021-07779-9