Radiometric analysis of isotherms and thermodynamic parameters for cadmium(II) adsorption from aqueous medium by calcium alginate beads

被引：4
|
作者：
Sarkar, Kangkana [1 ]
Sen, Kamalika [1 ]
Lahiri, Susanta [2 ]
机构：
[1] Univ Calcutta, Dept Chem, 92 APC Rd, Kolkata 700009, India
[2] Saha Inst Nucl Phys, Div Chem Sci, 1 AF Bidhannagar, Kolkata 700064, India
来源：
JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY | 2017年 / 312卷 / 02期
关键词：
NCA Cd-109; Radiopharmaceutical; Calcium alginate; Adsorption; Isotherm model; Thermodynamic parameters; HEAVY-METALS; WASTE-WATER; REMOVAL; CD-109; IONS; SEPARATION; SORPTION; NANOPARTICLES; EQUILIBRIUM; BIOSORPTION;
D O I：
10.1007/s10967-017-5213-2
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
Studies on the extraction behavior and immobilization of cadmium by greener reagents have important bearings in today's science. No-carrier-added (NCA), Cd-109 radionuclide is a potential candidate towards radiopharmaceutical studies for both in vivo and in vitro applications and is also used in industrial and environmental studies. Herein, we have studied the adsorption and desorption characteristics of cadmium in both NCA and bulk concentrations into calcium alginate using radiochemical method. Various isotherms like Langmuir, Freundlich, Temkin and Dubinin-Radushkevich have been studied and compared to match the adsorption phenomenon. A spontaneous endothermic physisorption process is expected from thermodynamic parameters.
引用
收藏
页码：343 / 354
页数：12
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