Journal
JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY
Volume 314, Issue 2, Pages 897-905Publisher
SPRINGER
DOI: 10.1007/s10967-017-5442-4
Keywords
(TcO4-)-Tc-99m; Adsorption; Waste rubber; Pyrolysis; Carbon-based material
Funding
- Ministry of Education, Science and Technological Development of Republic of Serbia [451-03-545/2015-09/06, III 45 012]
- Slovak Research and Development Agency [SK-SRB-2013-0048]
- Vinca Institute of Nuclear Sciences (Serbia)
- Comenius University (Slovakia)
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Low-cost adsorbents, synthesized by pyrolysis of waste rubber (CR) and activated with KOH (CRA), have shown the high removal ability of from aqueous solutions in wide range of pHs (2-10) with fast adsorption rate. The Langmuir and Freundlich models suggests monolayer and multilayer adsorption of onto CR and CRA surface, respectively. The removal mechanism of from solution occurs by replacement with OH- from surface groups (phenolic and/or accompanying carboxylic) of CR and CRA indicating anion exchange mechanism.
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