Phosphoramidate functionalization of hybrid chitosan/SiO2 beads for efficient sorption of ruthenium and application on seawater as a case study

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成果类型：

期刊论文

作者：

Salih, Khalid A. M.;Zhou, Kanggen;Wei, Yuezhou;Guibal, Eric*;Ning, Shunyan;...

通讯作者：

Guibal, Eric;Hamza, MF

作者机构：

[Salih, Khalid A. M.; Zhou, Kanggen] Cent South Univ, Sch Met & Environm, Changsha 410083, Peoples R China.

[Ning, Shunyan; Wei, Yuezhou; Hamza, Mohammed F.] Univ South China, Sch Nucl Sci & Technol, Heng Yang 421001, Peoples R China.

[Wei, Yuezhou] Shanghai Jiao Tong Univ, Sch Nucl Sci & Engn, Shanghai, Peoples R China.

[Guibal, Eric; Hamza, Mohammed F.; Hamza, MF; Guibal, E] IMT Mines Ales, Polymers Compos & Hybrids PCH, 6 Ave Clavieres, F-30319 Ales, France.

[Mohapatra, Prasanta K.] Bhabha Atom Res Ctr, Radiochem Div, Mumbai 40085, India.

通讯机构：

[Hamza, MF ; Guibal, E] I

IMT Mines Ales, Polymers Compos & Hybrids PCH, 6 Ave Clavieres, F-30319 Ales, France.

语种：

英文

关键词：

Ruthenium removal;Sorption isotherms;Uptake kinetics;Sorbent recycling;Selectivity;Physicochemical characterization;Spiked seawater treatment

期刊：

Desalination

ISSN：

0011-9164

年：

2025

卷：

597

页码：

118388

DOI：

10.1016/j.desal.2024.118388

基金类别：

National Natural Science Foundation of China [22350710186, U23B20167, 22066005, U1967218, 11975082]

机构署名：

本校为其他机构

院系归属：

核科学技术学院

摘要：

Ruthenium removal from complex solutions (highly saline effluents, seawater) is a critical challenge. Herein, the sorption capacity of chitosan/SiO2 composite beads (Ch-Si) for ruthenium nitrosyl is increased three-fold after phosphoramidate grafting (DPA-Ch-Si, 1.6 mmol Ru g−1) at pH 5. Uptake kinetics and sorption isotherms are compared at pH0: 3, 5 and 10; playing with the mode of agitation (mechanical, MA, vs. ultrasonic treatment, UT). The sorbent maintains good sorption capacities at pH 3 and 10. Uptake kinetics modeled by pseudo-first o...

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Phosphoramidate functionalization of hybrid chitosan/SiO2 beads for efficient sorption of ruthenium and application on seawater as a case study

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