Preparation of nano metal–organic frameworks supported 1,3-alternate calix[4]arene functional materials for selective adsorption of cesium

To remove Cs(I), a new UiO-66-based calix[ 4 ]crown adsorbent iPCU66 was prepared through impregnating and immobilizing iPCC6 into the pores of UiO-66. The adsorption of Cs(I) and others onto iPCU66 was investigated by examining the influence of temperature, contact time and HNO 3 concentration from...

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Veröffentlicht in:	Journal of radioanalytical and nuclear chemistry 2022-12, Vol.331 (12), p.5893-5903
Hauptverfasser:	Zhang, Anyun, Su, Jiatian, Jiang, Jialei, Wang, Zheng
Format:	Artikel
Sprache:	eng
Schlagworte:	Cesium Chemistry Chemistry and Materials Science Diagnostic Radiology Functional materials Hadrons Heavy Ions Inorganic Chemistry Metal-organic frameworks Nuclear Chemistry Nuclear Physics Physical Chemistry Selective adsorption Selectivity
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Zusammenfassung:	To remove Cs(I), a new UiO-66-based calix[ 4 ]crown adsorbent iPCU66 was prepared through impregnating and immobilizing iPCC6 into the pores of UiO-66. The adsorption of Cs(I) and others onto iPCU66 was investigated by examining the influence of temperature, contact time and HNO 3 concentration from 0.4 to 6.0 M. The strong adsorption ability and selectivity of iPCU66 for Cs(I) over Rb(I) and others were observed. The mechanism of Cs(I) adsorption onto iPCU66 based on host–guest molecular recognition was studied using EDS and XPS. The adsorption isotherms of Cs(I) well fitted with Langmuir model. Some valuable adsorption parameters of Cs(I) were obtained.
ISSN:	0236-5731 1588-2780
DOI:	10.1007/s10967-022-08666-7