Retention behavior of cesium radioisotope on poly (acrylamido-sulfonic acid) synthesized by chain polymerization

H S Hassan; Elsayed K Elmaghraby

doi:10.1016/j.apradiso.2019.01.017

Retention behavior of cesium radioisotope on poly (acrylamido-sulfonic acid) synthesized by chain polymerization

Appl Radiat Isot. 2019 Apr:146:40-47. doi: 10.1016/j.apradiso.2019.01.017. Epub 2019 Jan 30.

Authors

H S Hassan¹, Elsayed K Elmaghraby²

Affiliations

¹ Hot Laboratories and Waste Management Center, Atomic Energy Authority, 13759, Egypt. Electronic address: hisham.soliman@eaea.org.eg.
² Experimental Nuclear Physics Department, Nuclear Research Center, Atomic Energy Authority, 13759, Cairo, Egypt. Electronic address: elsayed.elmaghraby@eaea.org.eg.

PMID: 30753983
DOI: 10.1016/j.apradiso.2019.01.017

Abstract

Poly (acrylamido-sulfonic acid) polymers have been synthesized using the technique of radical chain polymerization utilizing acrylamide and ammonium persulphate. The polymerization was triggered and controlled using radiation from 1.1 μCi radium source. The polymer sheet was characterized using FTIR, DTA, TG, XRD and SEM. The sorption behavior of the prepared polymer was investigated for ¹³⁷Cs radionuclide from acid medium (nitric acid). Different parameters such as shaking time and concentrations of HNO₃ have been investigated. The removal of ¹³⁷Cs obeys the pseudo-second-order mechanism. The maximum monolayer capacity of polymer was 139.7 mg/g at room temperature. The thermodynamic parameters such as ΔG°, ΔH° and ΔS° were calculated.

Keywords: Cesium; Chain polymerization; Poly (acrylamido-sulfonic acid); Removal.