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

被引：0

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.

引用

页数：11

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