Remediation of 137Cs radionuclide in nuclear waste effluents by polymer composite: adsorption kinetics, isotherms and gamma irradiation studies

Olatunji, Michael Adekunle and Khandaker, Mayeen Uddin and Mahmud, Habibun Nabi Muhammad Ekramul and Amin, Yusoff Mohd and Ademola, Janet Ayobami and Olorode, Deborah Oluwaseun (2018) Remediation of 137Cs radionuclide in nuclear waste effluents by polymer composite: adsorption kinetics, isotherms and gamma irradiation studies. Journal of Radioanalytical and Nuclear Chemistry, 316 (3). pp. 933-945. ISSN 0236-5731

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Official URL: https://doi.org/10.1007/s10967-018-5875-4

Abstract

Polypyrrole is incorporated with activated carbon in large size dopant solution and investigated for 137Cs removal studies. Adsorption experiments showed optimum conditions within 240 min contact time, pH 6, 0.2 g adsorbent and ≤ 100 mg/l adsorbate dose, respectively, while the kinetic data followed pseudo-first-order model. Isotherm data were reproducible by the Langmuir isotherm yielding 23 mg/g maximum sorption capacity. Regeneration of adsorbent was attempted and indicated promising results within three cycles. The surface behavior has also been examined and revealed a well-ordered structure under gamma irradiation. This is a cheap adsorbent to consider and has also proven to possess higher sorption capacity than most highly-cost inorganic materials in use.

Item Type: Article
Uncontrolled Keywords: Adsorbent; Adsorption; Conducting polymer; Gamma-irradiation; Radioactive cesium
Subjects: Q Science > Q Science (General)
Q Science > QC Physics
Q Science > QD Chemistry
Divisions: Faculty of Science > Dept of Chemistry
Faculty of Science > Dept of Physics
Depositing User: Ms. Juhaida Abd Rahim
Date Deposited: 26 Apr 2019 08:06
Last Modified: 26 Apr 2019 08:06
URI: http://eprints.um.edu.my/id/eprint/21084

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