A5021965741- Advanced Photocatalysis Techniques
- TiO2 Photocatalysis and Solar Cells
- Chemical Synthesis and Characterization
- Radioactive element chemistry and processing
- Silicone and Siloxane Chemistry
- Polyoxometalates: Synthesis and Applications
- Extraction and Separation Processes
- Catalytic Processes in Materials Science
- Nuclear materials and radiation effects
- Advanced Nanomaterials in Catalysis
- Transition Metal Oxide Nanomaterials
- Adsorption and biosorption for pollutant removal
- Advanced Battery Materials and Technologies
- Nanoparticles: synthesis and applications
- Iron oxide chemistry and applications
- Nanomaterials for catalytic reactions
- Aerogels and thermal insulation
- Bone Tissue Engineering Materials
- Mesoporous Materials and Catalysis
Czech Academy of Sciences, Institute of Inorganic Chemistry
2014-2024
Research Centre Rez
2020
Technical University of Liberec
2020
University of Chemistry and Technology, Prague
2016-2020
Institute of Inorganic Chemistry of the Slovak Academy of Sciences
2014
Czech Academy of Sciences
2013
A novel way of simple preparation sodium titanates was described and their ion-exchange mechanism studied for the removal Cs( i ), Sr( ii Co( ) Eu( iii from aqueous environments.
In this work, we report on the efficient removal of heavy metal ions with nanostructured lithium, sodium and potassium titanates from simulated wastewater. The were obtained via a fast, easy cost effective process based extraction sulfate crystals titanyl their replacement hydroxyl groups NaOH, LiOH KOH solutions leaving Ti-O framework intact. as-prepared carefully examined by scanning transmission electron microscopy. Furthermore, effect contact time, pH, annealing temperature, together...
A new preparation method for the synthesis of TiO2 microrods in aqueous media starting with solid hydrated titanyl sulfate crystals defined morphology is presented. The based on extraction ions from and their replacement hydroxyl groups ammonia solution leaving Ti–O framework intact. particle size closely preserved pseudomorphs amorphous metatitanic acid including such details like layered structure original crystals. When annealed up to 1200 °C, rod-like particles retained, while phase...
Abstract Structure and phase composition of titania aerogels can be substantially influenced simply by the process drying their parent water colloid suspensions prepared reaction hydrogen peroxide with suspension precipitates obtained neutralization solution titanyl sulfate ammonia. Two methods are compared: (1) lyophilization fast frozen material immersed in liquid nitrogen, (2) critical point using supercritical CO 2 under high pressure. Both lead to yellow titanium consisting...
Laboratory synthesis of microsheets titanium dioxide from titanyl sulfate involves the use ammonia solution, whereas another inorganic base is most likely to be employed at industrial level, as a toxic agent and therefore should avoided according European Union (EU) regulations. Selected nontoxic bases such sodium, potassium, lithium hydroxides have been tested an alternative solution obtain amorphous crystalline TiO2-based microsheets. The final products obtained each step procedure...
TiO2 nanosheets were modified by two different procedures (volume and surface modification) with 0.5 wt % of 57Fe toward Ti. In the case volume modification, (in form 57Fe(NO3)3·nH2O solution) was added at beginning preparation while sample prepared from aqueous suspension undoped annealed 800 °C solution via impregnation method. The later 650, 800, 950 °C; no further annealing done on sample. Both types materials characterized electron microscopy, X-ray powder diffraction, porosity...
Microplastic (MPs) pollution has become a serious environmental problem in the current decade. Unfortunately, wastewater treatment plants are not favorable for treating MPs. Therefore, it is necessary to develop...
Photocatalytic concrete screeds with self-cleaning and antimicrobial function have been developed tested.These building materials contain sand grains deposited composite TiO2/SiO2 layers.Two types of the screeds, grey white, were prepared their photoactivity material characteristics compared.Commercial TiO2 photocatalysts from several manufacturers employed.Effects different parameters, such as temperature coated calcination, humidity, surface abrasion, followed.Mechanical properties...
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