Adsorption properties and mechanism of copper ferrocyanide/vermiculite composite sodium alginate microspheres on U(VI) in aqueous solution

被引：1
作者：
Zhang, Leilei [1 ,2 ]
Huang, Liang [2 ]
Chang, Zhiwen [2 ]
Lu, Chunhai [1 ,2 ]
机构：
[1] Chengdu Univ Technol, Appl Nucl Technol Geosci Key Lab Sichuan Prov, Chengdu 610059, Peoples R China
[2] Chengdu Univ Technol, Coll Nucl Technol & Automat Engn, Chengdu 610059, Sichuan, Peoples R China
来源：
JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY | 2025年 / 334卷 / 04期
关键词：
U(VI) adsorption; Ion exchange; Hydrogel composite microspheres; Sodium alginate; Copper ferrocyanide; URANIUM IONS; REMOVAL; EXTRACTION; ADSORBENT; SEAWATER; SORPTION; BEADS;
D O I：
10.1007/s10967-025-10057-7
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
In this study, novel composite hydrogel microspheres (CuFC-SAVT) were synthesized by incorporating copper ferrocyanide (CuFC), pretreated vermiculite (P-VT), and sodium alginate (SA). The composite microspheres demonstrated superior U(VI) removal efficiency of 90.8% at pH 4.0 and 298.15 K, significantly outperforming the 64.7% achieved by CuFC alone. Kinetic and isotherm studies revealed that the U(VI) adsorption by CuFC-SAVT followed the pseudo-second-order kinetic model and Freundlich isotherm model. The CuFC-SAVT microspheres exhibited multiple advantages, including excellent adsorption performance, facile separation from solution, and environmental friendliness. These findings suggest that CuFC-SAVT holds promising potential for practical applications in uranium-containing wastewater treatment.
引用
收藏
页码：2823 / 2837
页数：15
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