Surfactant modification and adsorption properties of clinoptilolite for the removal of pertechnetate from aqueous solutions
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2016
Authors
Milicevic, SonjaMatović, Ljiljana
Petrović, Đorđe
Aukic, Andelka
Milosevic, Vladan
Dokic, Divna
Kumrić, Ksenija
Article
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Show full item recordAbstract
Natural clinoptilolite modified with a cationic surfactant stearyldimethylbenzylammonium chloride (SDBAC) was used as an adsorbent for the removal of pertechnetate from aqueous solutions. Adsorption studies were performed in a batch system. The effects of various experimental parameters (amount of surfactant loading, contact time, solution pH, competing anions) on the removal efficiency of TcO4 (-) were investigated. SDBAC-clinoptilolite with organo-bilayer was successfully used to remove TcO4 (-) from aqueous solutions in the pH range of 5.0-8.0. ReO4 (-) as an analogue of TcO4 (-) was used to model the isotherms. Adsorption capacity of the SDBAC-clinoptilolite and the mechanism of ReO4 (-) (TcO4 (-)) sorption were also determined.
Keywords:
Adsorption / Tc-99 / Surfactant / SDBAC / Organo-modified clinoptiloliteSource:
Journal of Radioanalytical and Nuclear Chemistry, 2016, 310, 2, 805-815Projects:
- Synthesis, processing and characterization of nanostructured materials for application in the field of energy, mechanical engineering, environmental protection and biomedicine (RS-45012)
- Implementation of new technical, technological and environmental solutions in the mining and metallurgical operations RBB and RBM (RS-33007)
- Physics and Chemistry with Ion Beams (RS-45006)
DOI: 10.1007/s10967-016-4850-1
ISSN: 0236-5731 (print); 1588-2780 (electronic)
WoS: 000385201600034
Scopus: 2-s2.0-84964434811
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