The influence of annealing temperature on properties of TiO2 based materials as adsorbents of radionuclides

0502834 - ÚACH 2020 RIV NL eng J - Článek v odborném periodiku
Motlochová, Monika - Slovák, V. - Pližingrová, Eva - Szatmáry, L. - Bezdička, Petr - Šubrt, Jan
The influence of annealing temperature on properties of TiO2 based materials as adsorbents of radionuclides.
Thermochimica Acta. Roč. 673, MAR (2019), s. 34-39. ISSN 0040-6031. E-ISSN 1872-762X
Grant CEP: GA TA ČR(CZ) TH02020110; GA MŠMT(CZ) LM2015073
Institucionální podpora: RVO:61388980
Klíčová slova: Titanium dioxide * Thermal analysis * Radionuclides * Ion-Exchange
Obor OECD: Inorganic and nuclear chemistry
Impakt faktor: 2.762, rok: 2019
Způsob publikování: Open access s časovým embargem

Two types of TiO2 based materials have been prepared from titanium oxysulfate hydrate via precipitation by cold solution of sodium hydroxide and drying at room temperature. The structural changes (especially crystallization into anatase, resp. sodium titanates) during heating up to 1000 degrees C were studied together with adsorption properties of prepared and annealed materials towards radionuclides Sr-85 and Cs-134. It was found that amorphous and non-annealed materials are able to adsorb higher amount of radionuclides, annealing always leads to decrease of adsorption efficiency. The amount of exchangeable sodium cations was found as the second factor determining adsorption properties of studied titania based materials.
Trvalý link: http://hdl.handle.net/11104/0294722