Separation studies of <sup>60</sup>Co (II) and <sup>134</sup>Cs (I) radionuclides from aqueous solution using starch-grafted citric acid-acrylamide/magnesia hydrogel-Reference-Cited by-同舟云学术

Separation studies of ⁶⁰Co (II) and ¹³⁴Cs (I) radionuclides from aqueous solution using starch-grafted citric acid-acrylamide/magnesia hydrogel

Published:2024-06-25 Issue: Volume: Page:
ISSN:0033-8230
Container-title:Radiochimica Acta
language:en
Short-container-title:

Author:

Youssef Maha Ali¹,Dakroury Gehan Abdel Rahman Sadek²,Hassan Hisham Soliman³

Affiliation:

1. Analytical Chemistry and Control Department , %2068892 Hot Laboratories Centre, Egyptian Atomic Energy Authority , Cairo , P.O. 13759 , Egypt

2. Nuclear Chemistry Department , %2068892 Hot Laboratories Centre, Egyptian Atomic Energy Authority , Cairo , P.O. 13759 , Egypt

3. %2068892 Waste Management Department, Hot Laboratories Centre, Egyptian Atomic Energy Authority , Cairo , P.O. 13759 , Egypt

Abstract

Abstract In this study, three starch hydrogels composite prepared using different ratios of starch, citric acid, acrylamide, and MgO nanoparticles (referred to as St1-g-(CA-AM), St2-g-(CA-AM), and St3-g-(CA-AM) MgO). These materials were assessed using FT-IR, SEM, and EDX. The adsorption of 134Cs(I) and 60Co (II) onto these materials studied using radiometric analysis. The investigation focused on how temperature, contact duration, initial metal ion concentration, and pH of the solution affected the sorption efficiency. It is found that a pH value of 7 optimized the adsorption reaction, reaching equilibrium after 40 minutes. The kinetics of the adsorption followed a pseudo-second order model. The Langmuir model adequately explained the sorption mechanism, supported by the analysis of isotherm models. The monolayer adsorption capacities for 60Co (II) and 134Cs (I) were 113.38 and 100.2 mg g−1, respectively. The thermodynamic study indicated that the sorption process is both endothermic and spontaneous.

Publisher

Walter de Gruyter GmbH

Link

https://www.degruyter.com/document/doi/10.1515/ract-2024-0295/pdf

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