The list of national projects SAS
Institute of Geotechnics SAS
Hybrid Composites for Complex Treatment of Industrial Waters
Hybridné kompozity pre komplexné čistenie priemyselných vôd
| Duration: |
1.7.2020 - 30.6.2024 |
| Program: |
SRDA |
| Project leader: |
Melnyk Inna PhD. |
| Annotation: | Water is an issue and became a priority of the research of the 21st century. The core subject of the project proposal lays in the research priorities defined by Strategy of research and innovations for the intelligent specialization of Slovak republic – RIS 3 as well as Strategy Europe 2020. The main objective of the project is the preparation of composite micro and nano adsorbents based on silica and metal oxides for the removal of inorganic
and organic pollutants from waters. The materials will be functionalized by various functional groups in order to achieve better selectivity towards different metal ions and organic compounds. Multifunctional porous and nonporous spherical adsorbents will be prepared via one-step synthesis. The magnetic composites with mono- and multi-functional surface layers will synthesize as well. The sorption affinity of the new materials towards arsenic,
lead, cadmium, mercury ions, and the selected organic pollutants such as adsorbable organic halides from metallurgy industry, polyaromatic hydrocarbons from agriculture, azodyes from textile industry and/or residuals of medical drugs will be investigated. |
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Chalkogenidy ako perspektívne, ekologicky a ekonomicky prijatelné nanomateriály pre energetiku a medicínu
| Duration: |
1.7.2019 - 30.6.2023 |
| Program: |
SRDA |
| Project leader: |
Dr.h.c. prof. RNDr. Baláž Peter DrSc. |
| Annotation: | Project will be aimed at the synthesis, characterization and utilization of advanced chalcogenide materials for
application in energy and medicine sector. Binary, ternary and quaternary compounds of copper with a variable
composition will be treated. Efficiency of thermoelectric and photovoltaic materials will be tested. Bio-imaging as
well as potential drug effectivity with antibacterial and anticancer effects will be studied. Mechanochemical
methodology with the ability for scaling of the materials under study will be applied. |
Intensification of Selected Metals Recovery from Refractory Polymetallic Ores and Mining Wastes in Microwave Field
Intenzifikácia získavania vybraných kovov z ťažkoupraviteľných polymetalických rúd a banských odpadov v mikrovlnnom poli
| Duration: |
1.1.2021 - 31.12.2024 |
| Program: |
VEGA |
| Project leader: |
Ing. Znamenáčková Ingrid PhD. |
| Annotation: | The project is aimed at the study of microwave energy application in recovery of critical and strategic metals (Cu,
Sb, Ag, Au, REE) from refractory polymetallic ores and their concentrates. Microwave pre-treatment will realise to meet an effective liberation of utility components. An attention will be paid to selective heating of utility minerals, which strongly absorb the microwave radiation (sulphides and oxides) and of non absorbing barren minerals (silicates). Selectivity of heating and degree of mineral structure failure will analyse by optical and scanning electron microscopy. An influence of microwave on the processes of comminution and separation in magnetic, electric and gravity fields will be observed. Metals winning will be performed by extraction techniques in solutions of mineral and organic acids (EDTA), and their salts, before and after microwave pre-treatment of metal ores and concentrates. Microwave-assisted metals extraction enabling more efficient metals leaching will be also realised. |
Possibilities of critical raw materials recovery by advanced methods of mining wastes processing
Možnosti získavania kritických surovín pomocou progresívnych metód spracovania banských odpadov
| Duration: |
1.7.2021 - 30.6.2025 |
| Program: |
SRDA |
| Project leader: |
Ing. Luptáková Alena PhD. |
| Annotation: | The project idea is in accordance with priorities of strategy for research and development adopted by the
government RIS 3 and Strategy of the environmental policy of the Slovak Republic until 2030. The project solution
is based on the research and development need of progressive methods of wastes treatment from the mining and
processing industry of ore raw materials in order to obtain critical raw materials with regard to environmental
protection. The project is focused on the study of the wastes recovery from selected old mining sulphidic burdens in
Slovakia - Smolník and Zlatá Baňa, as secondary sources of critical raw materials. The proposed concept of the
solution results from the intensification of natural processes combined with advanced physico-chemical and
especially biological-chemical processes, in accordance with generally used mining waste treatment procedures
and respecting the specific geochemical and hydrogeological conditions of the sites. The expected benefits of the
project are the selective metals recovery, the sulphates elimination, the mineral fractions utilization for construction
materials and the remediation proposal for the recovery and use of landscape potential. |
Advanced method of preparation of selected metal chalcogenides by high-energy milling as potential materials for energy conversion.
Pokročilý spôsob prípravy vybraných chalkogenidov kovov vysoko-energetickým mletím ako potenciálnych materiálov pre konverziu energie.
| Duration: |
1.1.2023 - 31.12.2026 |
| Program: |
VEGA |
| Project leader: |
Mgr. Achimovičová Marcela PhD. |
| Annotation: | The project will focus on an advantageous synthesis of transition metal chalcogenides, selenides, and selenospinels by high-energy milling and the characterization of their physico-chemical properties. In planetary ball mills, the synthesis of binary and ternary selenides, synthetic analogues of minerals naumannite (Ag2Se), berzelianite (Cu2-xSe), and selenospinels of the Me3Se4 type, where Me=Fe,Ni,Co, and CuCr2Se4 will take place, or combined mechano/thermal approach will be used, resp. The milling technique will also be used to prepare doped selenides with elemental Ag (Cu2-xAgxSe; x=0.1-2) and Zn, Mn, I...(Cu1-xTxCr2Se4-xIx; x=0.1-1) in order to improve their thermoelectric efficiency. The kinetics of syntheses, phase composition, and morphology of undoped and doped chalcogenides will be monitored. Furthermore, the powder densification conditions will be determined, the thermoelectrical, optical, and magnetic properties will be measured. The properties of synthetic analogues will be compared with minerals. |
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Staré banské diela ako zdroj environmentálneho zaťaženia prostredia
Synthesized minerals with the structure of complex oxides as components for devices for green energy production and storage
Syntetizované minerály na báze komplexných oxidov a testovanie ich využitia pre komponenty zariadení získavania a uskladnenia energie so zreteľom na udržateľnosť životného prostredia
| Duration: |
1.1.2023 - 31.12.2026 |
| Program: |
VEGA |
| Project leader: |
RNDr. Fabián Martin PhD. |
| Annotation: | The issue of the development of sustainable energy sources is one of the most intensively researched scientific areas today. However, addressing this issue requires a comprehensive approach. One of the possibilities is the synthesis and modification of new materials based on minerals with a structure of complex oxides. It is known that complex oxides have a wide range of applications as components for energy generating and storing equipment. Nevertheless, the influence of the modification of the composition, structure, variations in the size of the crystallographic grains and the contribution of the active surface on the functional properties of the studied materials still requires intensive research. Therefore, within the solution of the project, complex oxides of various structural and chemical compositions (especially with perovskite and spinel structure) will be synthesized and investigated utilizing milling of precursors and investigated by standard methods used for the characterization of minerals. |
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Štúdium nových typov materiálov na báze komplexných oxidov určených na uskladnenie energie
High-energy milling of calcite-based eggshell waste and selected plants for preparation of nanocrystalline minerals and environmental applications
Vysoko-energetické mletie vaječného odpadu na báze kalcitu a vybraných rastlín pre prípravu nanokryštalických minerálov a environmentálne aplikácie
| Duration: |
1.1.2022 - 31.12.2025 |
| Program: |
VEGA |
| Project leader: |
RNDr. Baláž Matej PhD. |
| Annotation: | High-energy milling is a mineral processing technique initially developed for the treatment of raw materials during mining activities. In the proposed project, it will be used to treat calcite mineral present in the eggshell waste in order to improve its adsorption capability against selected heavy metal ions and dyes from both model solutions and real wastewaters from the mining regions. Additionally, bio-based calcite and the organic residue will be used as active reactants in the synthesis to yield nanocrystalline minerals (sulfides, oxides and their composites) and as a catalyst for the selected organic reactions. Both adsorption and nanomaterials synthesis will be also performed with selected common plants as natural raw materials. Eggshell and selected plants will be also applied as reducing agents to yield Ag and AgCl nanoparticles. The application of the obtained products in the fields of photocatalysis, thermoelectrics and in biomedicine will be tested in collaboration with foreign partners. |
Relationships between structure and unusual physical properties in highly nonequilibrium oxides prepared by unconventional mechanochemical synthesis
Vzťahy medzi štruktúrou a nezvyčajnými fyzikálnymi vlastnosťami vo vysoko-nerovnovážnych oxidoch pripravených nekonvenčnou mechanochemickou syntézou
| Duration: |
1.7.2020 - 30.6.2024 |
| Program: |
SRDA |
| Project leader: |
RNDr. Fabián Martin PhD. |
| Annotation: | Nonconventional mechanochemical methods will be used to prepare the far-from-equilibrium novel nanooxides. The studies of the early stages of the mechanically induced nucleation and growth of nonequilibrium phases will provide access to the elucidation of the microscopic mechanism of the nonconventional mechanochemical preparation route. This point represents one of the fundamental but till now the unsolved scientific issues in the field of mechanochemistry/solid state chemistry. Valuable quantitative insights into the atomic and electronic structures as well as into the dynamic and kinetic processes in the mechanochemically prepared nanomaterials will be obtained. Mechanical, magnetic and electric responses of the far-from-equilibrium nanophases will be studied experimentally with the aim to establish the interplay between their local structure and the functional behavior. |
The total number of projects: 10
