Number of the records: 1
Highly efficient eco-friendly sodium titanate sorbents of Cs(I), Sr(II), Co(II) and Eu(III): synthesis, characterization and detailed adsorption study
- 1.
SYSNO ASEP 0580961 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Highly efficient eco-friendly sodium titanate sorbents of Cs(I), Sr(II), Co(II) and Eu(III): synthesis, characterization and detailed adsorption study Author(s) Motlochová, Monika (UACH-T) SAI, RID, ORCID
Szatmary, L. (CZ)
Pližingrová, Eva (UACH-T) SAI, ORCID
Salačová, P. (CZ)
Fajgar, Radek (UCHP-M) RID, ORCID, SAI
Lidin, S. (SE)
Šubrt, Jan (UACH-T) SAI, RIDNumber of authors 7 Source Title RSC Advances. - : Royal Society of Chemistry
Roč. 14, č. 1 (2024), s. 743-754Number of pages 12 s. Language eng - English Country GB - United Kingdom Keywords ion-exchange ; cesium ; strontium ; separation ; sorption ; radionuclides ; adsorbents ; mechanisms ; removal ; water Subject RIV CA - Inorganic Chemistry OECD category Inorganic and nuclear chemistry R&D Projects LM2015073 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) TH02020110 GA TA ČR - Technology Agency of the Czech Republic (TA ČR) Method of publishing Open access Institutional support UACH-T - RVO:61388980 ; UCHP-M - RVO:67985858 UT WOS 001136919300001 EID SCOPUS 85181840358 DOI 10.1039/d3ra05663e Annotation Development of useful all-around materials which can quickly and efficiently adsorb radionuclides in response to environmental radioactive contamination is an urgent research objective. In response to this need, our team developed a simple preparation method for stable sodium titanates which can serve as efficient agents for removal of radionuclides from water. With an emphasis on an environmentally friendly synthesis, the resulting materials were defined by a range of means and methods measuring e.g. pH, ionic strength, contact time or metal ion concentration in order to assess their potential for use and applications as sorbents. The data obtained from measurements revealed rapid removal kinetics (up to 10 minutes), wide range of pH use and high equilibrium capacity. The maximum amount of adsorbed ions as calculated from the Langmuir isotherm was equal to 206.3 mg g(-1) for Cs(I), 60.0 mg g(-1) for Sr(II), 50.2 mg g(-1) for Co(II) and 103.4 mg g(-1) for Eu(III), significantly exceeding published data obtained with related materials. The removal mechanism is most likely ion exchange followed by complexation reactions, as indicated by TEM/EDS analyses. Given their extraordinary sorption capacity and facile synthesis under mild conditions, these materials are promising candidates for the efficient removal of radionuclides from aqueous solutions during the clean-up of radioactive pollution in the environment. Workplace Institute of Inorganic Chemistry Contact Jana Kroneislová, krone@iic.cas.cz, Tel.: 311 236 931 Year of Publishing 2025 Electronic address https://hdl.handle.net/11104/0349758
Number of the records: 1