A5078427495- Radioactive element chemistry and processing
- Chemical Synthesis and Characterization
- Radioactive contamination and transfer
- Adsorption and biosorption for pollutant removal
- Extraction and Separation Processes
- Analytical chemistry methods development
- Nuclear Physics and Applications
- Radioactivity and Radon Measurements
- Nuclear and radioactivity studies
- Radiopharmaceutical Chemistry and Applications
- Mining and Gasification Technologies
- Isotope Analysis in Ecology
- Nuclear Materials and Properties
- Graphite, nuclear technology, radiation studies
- Engine and Fuel Emissions
- Industrial Engineering and Technologies
- Geotechnical and Geomechanical Engineering
- Iron oxide chemistry and applications
- Ammonia Synthesis and Nitrogen Reduction
- Phosphorus and nutrient management
- Microbial Fuel Cells and Bioremediation
- Muon and positron interactions and applications
- Advanced Chemical Physics Studies
- Concrete and Cement Materials Research
- Chemical Analysis and Environmental Impact
Czech Technical University in Prague
2017-2024
Comenius University Bratislava
2012-2015
Abstract The study investigated the adsorption behaviour of different activated carbon samples for pertechnetate under diverse conditions. Characterizations A-CF-F and A-CF-Z were done using BET, FTIR, XRD, XRF SEM–EDX methods. In batch experiments, maximum occured at pH 2, with a swift process an optimal phase mixing time determined as 1 h all samples. Analyzing experimental data Langmuir Freundlich models revealed coefficients determination R 2 exceeding 90%. isotherm was found to be more...
Abstract 133 Ba is a hazardous radionuclide generated during the operation of nuclear power plants. needs to be removed from waste solutions because its half-life (10.55 years) and gamma energy pose significant threat human health. Cigarette butt (CB) that causes serious environmental problems. Various types adsorbent materials are prepared based on cellulose in structure. The focus present study synthesize novel composite material derived CBs investigate removal capability. Microfibrillated...
The study summarizes the results of monitoring properties two types sorbents, BC1 (biochar sample 1) and BC2a 2), prepared by pyrolysis bamboo biomass (BC1) as its composite with montmorillonite K10 (BC2a). main goal was to their applicability Tc (VII) separation from liquid wastes, using NH4ReO4 a carrier. research focused on determining sorbents surface (by XRF (X-ray fluorescence) method potentiometric titration in order determine groups-Chemical Equilibrium Model (CEM) Ion Exchange...
The work deals with the evaluation of biochar samples prepared from Phyllostachys Viridiglaucescens bamboo. This consists characterization materials’ structural properties, batch and dynamic sorption experiments, potentiometric titrations. technique was focused on obtaining basic data 99mTcO4− including influence pH, contact time, Freundlich isotherm. ReO4−, which has very similar chemical properties to 99mTcO4−, used as a carrier in experiments. Theoretical modeling titration curves based...
The use of knowledge from technetium radiochemistry (even nuclear medicine applications) allows us to select an sorbent for 99mTc radionuclide sorption, which is hydroxyapatite. Using radioisotope indication, the 99mTcO₄- sorption process on synthetic hydroxyapatite was studied by batch method in presence SnCl2 and FeSO4 reducing agents. complexing organic ligands' effect under conditions investigated. In Sn2+ ions without addition ligand, percentage reached above 90% independently...
The first accelerator mass spectrometry (AMS) laboratory in the Czech Republic has been established and put into routine operation February 2022. Here we briefly describe facilities available, namely a 300 kV multi-isotope low-energy AMS system (MILEA) capable of determination 10Be, 14C, 26Al, 41Ca, 129I, isotopes U, especially 236U, Pu other actinoids, accessories for 14C measurements, which include gas interface system, preparative chromatography compound-specific radiocarbon dating...
The efficiency of 133Ba and 137Cs removal from aqueous solution is vital to mitigate ecological concerns over spreading these radionuclides in the environment. present work focused on use Turkish perlite for sorptive by radioindicator method. Perlite was characterized XRF, XRD, FTIR, SEM−EDX, BET analyses. maximum percentage removals 88.2% 78.7% were obtained at pH 6 9, respectively. For both ions, sorption equilibrium attained relatively rapidly. Experimental kinetic data well described...
The main goal of this paper is to provide a brief overview the use and determination 129I by means accelerator mass spectrometry. Although AMS currently most sensitive method for 129I, preparation target samples plays key role in method. commonly used methods are those which iodine lost due elevated temperatures. Therefore, there still room effort find suitable measurement