Author(s):
1. Bojana Ekmeščić, Serbia
2. Danijela Maksin, University of Belgrade, Vinča Institute of Nuclear Sciences, Serbia, Serbia
3. Antonije Onjia, University of Belgrade, Vinča Institute of Nuclear Sciences, Serbia, Serbia
4. Jelena Marković, University of Belgrade, Vinča Institute of Nuclear Sciences, Serbia, Serbia
5. Zvjezdana Sandić, Prirodno-matematički fakultet Banja Luka, Republic of Srpska, Bosnia and Herzegovina
6. Ljiljana Suručić, Univerzitet u Beogradu, Inovacioni centar Tehnolosko-metalurskog fakulteta, Serbia
7. Aleksandra Nastasović, Univerzitet u Beogradu, Inovacioni centar Tehnolosko-metalurskog fakulteta, Serbia

Abstract:
The Tc-99 sorption behavior was predicted by investigating its stable analogue perrhenate anion (75ReO4-), thus evading the use of a radioactive element in high doses. Macroporous crosslinked methacrylate copolymer functionalized with diethylene triamine was tested as the sorbent in acetate buffer (pH 5.0) at 298K. The pseudo-second-order model provided the best fit for the kinetic data, while the intraparticle diffusion model indicated a pronounced influence on the sorption rates. The maximum sorption capacity in acetate buffer was 109 mg g-1, that is higher than 95 % removal efficiency after 3h.

Key words:
Perrhenate, Acetate buffer, Kinetic models

Thematic field:
SYMPOSIUM B - Biomaterials and nanomedicine

Date of abstract submission:
28.05.2015.

Conference:
Contemporary Materials 2015 - Savremeni Materijali