Adsorptive removal of Sr(II) from aqueous solution by xanthate modified chitosan

被引：1
|
作者：
Xu, Bowen [1 ]
Tian, Huiyu [3 ]
Chen, Jianbo [3 ]
Wei, Lifeng [4 ]
Wang, Kai [4 ]
Wang, Jianlong [1 ,2 ]
机构：
[1] Tsinghua Univ, Lab Environm Technol, INET, Beijing 100084, Peoples R China
[2] Tsinghua Univ, Beijing Key Lab Radioact Waste Treatment, INET, Beijing 100084, Peoples R China
[3] Fujian Ningde Nucl Power Co Ltd, Ningde 355200, Peoples R China
[4] China Datang Nucl Power Co Ltd, Beijing 100033, Peoples R China
来源：
PROGRESS IN NUCLEAR ENERGY | 2025年 / 180卷
关键词：
Radionuclides; Adsorption; Chitosan; Strontium; COMPETITIVE ADSORPTION; STRONTIUM; PB(II); SR2+; EQUILIBRIUM; BIOSORPTION; ADSORBENTS; CELLULOSE; COBALT; CU(II);
D O I：
10.1016/j.pnucene.2025.105621
中图分类号：
TL [原子能技术]; O571 [原子核物理学];
学科分类号：
0827 ; 082701 ;
摘要：
In this study, xantahted chitosan (CTS-X) was synthesized through a simple one-step preparation method, the analysis results of XPS and FT-IR spectra confirmed the successful introduction of xanthate. The specific surface area of CTS-X was higher than original chitosan, and the pore structure was relatively simple. CTS-X exhibited excellent adsorption performance for Sr(II). The adsorption rate of Sr(II) was fast, and the rate-limiting step was extra diffusion process. The maximum adsorption capacity was 58.36 mg g- 1, calculated by D-R isotherm model, which was higher than most chitosan-based adsorbents. The main adsorption sites were hydroxyl groups and xanthates. Due to simple preparation and excellent adsorption performance, CTS-X has potential in application for radionuclide separation from radioactive wastewater.
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页数：11
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