Facile synthesis of polydopamine-interlinked titanate nanosheets and copper hexacyanoferrate for highly efficient removal of Cs(I)

A novel efficient adsorbent (TNSs@PDA@CuHCF) was synthesized by polydopamine coating and copper hexacyanoferrate loading on titanate nanosheets and applied to adsorb Cs(I) form aqueous solution. The adsorbent exhibited an excellent adsorption capacity for Cs(I) (374.53 mg/g at 298 K). Adsorption beh...

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Veröffentlicht in:	Journal of radioanalytical and nuclear chemistry 2023-08, Vol.332 (8), p.3191-3204
Hauptverfasser:	Zhou, Yuzhi, Li, Ye, Su, Yongdong, Long, Linli, Duan, Rui, Jiang, Zhiyang, Niu, Jingwei, Chen, Xiaoyang
Format:	Artikel
Sprache:	eng
Schlagworte:	Adsorbents Adsorption Analysis Aqueous solutions Chemistry Chemistry and Materials Science Copper Diagnostic Radiology Endothermic reactions Green technology Hadrons Heavy Ions Inorganic Chemistry Ion exchange Nanosheets Nuclear Chemistry Nuclear energy Nuclear Physics Physical Chemistry Radioactive substances Thermodynamics
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Zusammenfassung:	A novel efficient adsorbent (TNSs@PDA@CuHCF) was synthesized by polydopamine coating and copper hexacyanoferrate loading on titanate nanosheets and applied to adsorb Cs(I) form aqueous solution. The adsorbent exhibited an excellent adsorption capacity for Cs(I) (374.53 mg/g at 298 K). Adsorption behavious of Cs(I) on TNSs@PDA@CuHCF could be well described by the Langmuir isotherm model and the pseudo-second-order kinetic model, respectively. Thermodynamic analysis revealed that adsorption of Cs(I) was a spontaneous and endothermic process. The interaction of Cs(I) and adsorbent was largely attributed to ion exchange.
ISSN:	0236-5731 1588-2780
DOI:	10.1007/s10967-023-08948-8