About department

Field of Scientific Interest

The main focus in the research of the Department of Hydrosilicates has been on the composition and properties of the fine fractions of bentonites, the clay raw materials containing dominantly montmorillonite or other minerals of the smectite group. Mineralogical and chemical composition and chemical modifications, including replacement of exchangeable cations by various inorganic and organic cations of selected properties and cationic dyes, partial dissolution in acids have been recently studied using mainly spectroscopic methods. Original interpretation of the first overtones and combination vibrations showed that near-infrared spectroscopy provides valuable information on the structure of analysed materials. Hybrid materials based on clay minerals and cationic dyes exhibit interesting properties, such as changes of the energy of absorbed and emitted light, excitation energy transfer, photosensitization, optical anisotropy, etc. These changes are related to the formation of specific supramolecular assemblies of dye cations on the surface of clay mineral particles.


  • Head of department: Ing. Helena Pálková, PhD.


Selected publications

MA, Liwa* – SLANÝ, Michal* – GUO, Rui – DU, Weichao – LI, Yongfei – CHEN, Gang**. Study on synergistic catalysis of ex-situ catalyst and in-situ clay in aquathermolysis of water-heavy oil-ethanol at low temperature. In Chemical Engineering Journal, 2023, vol. 453, p. 139872-1-139872-11. (2022: 15.1 – IF, Q1 – JCR, 2.803 – SJR, Q1 – SJR). https://doi.org/10.1016/j.cej.2022.139872

XU, Zhongying – CAO, Xuewen – WANG, Yefei – SLANÝ, Michal** – UNČÍK, Stanislav – LI, Shanjian – TANG, Ying**. Effective corrosion inhibitor of mild steel in marine environments: Synthesis and application of hydrazides. In Sustainable Materials and Technologies, 2023, vol. 38, art. no. e00747. (2022: 9.6 – IF, Q1 – JCR, 1.605 – SJR, Q1 – SJR). https://doi.org/10.1016/j.susmat.2023.e00747

ZIMOWSKA, Małgorzata** – ŚLIWA, Michał – PÁLKOVÁ, Helena – GURGUL, Jacek – SOCHA, Robert P. Microwave treatment effect on the enhanced basicity of porous clay heterostructured composites derived from Laponite. In Applied Surface Science, 2023, vol. 619, art no. 156768. (2022: 6.7 – IF, Q1 – JCR, 1.187 – SJR, Q1 – SJR). https://doi.org/10.1016/j.apsusc.2023.156768

TAWFIK, Taher Anwar** – SLANÝ, Michal – PALOU, Martin T. Influence of heavyweight aggregate on the fresh, mechanical, durability, and microstructural properties of self-compacting concrete under elevated temperatures. In Journal of building engineering, 2023, vol. 80, art. no. 108104. (2022: 6.4 – IF, Q1 – JCR, 1.232 – SJR, Q1 – SJR). https://doi.org/10.1016/j.jobe.2023.108104

YAN, Jiao – LI, Yongfei – XIE, Xuan – SLANÝ, Michal – DONG, Sanbao – WU, Yuanpeng** – CHEN, Gang**. Research of a novel fracturing-production integral fluid based on cationic surfactant. In Journal of Molecular Liquids, 2023, vol. 369, p. 120858-1-120858-9. (2022: 6 – IF, Q1 – JCR, 0.914 – SJR, Q1 – SJR, karentované – CCC). https://doi.org/10.1016/j.molliq.2022.120858

VOZÁROVÁ, Mária** – NEUBAUER, Erich – BAČA, Ľuboš – KITZMANTEL, M. – FERANC, Jozef – NAGY – TREMBOŠOVÁ, Veronika, rod. Trembošová – PECIAR, Peter – KRITIKOS, Michaela – ORLOVSKÁ, M. – JANEK, Marián** – MATEJDES, Marián. Preparation of fully dense boron carbide ceramics by Fused Filament Fabrication (FFF). In Journal of the European Ceramic Society, 2023, vol. 43, no., p. 1751-1761. (2022: 5.7 – IF, Q1 – JCR, 1.257 – SJR, Q1 – SJR). https://doi.org/10.1016/j.jeurceramsoc.2022.12.018

SKOURA, EvaBOHÁČ, Peter BARLOG, MartinPÁLKOVÁ, Helena – MAUTNER, Andreas – BUGYNA, Larysa – BUJDÁKOVÁ, Helena – BUJDÁK, Juraj**. Structure, photoactivity, and antimicrobial properties of phloxine B / poly(caprolactone) nanocomposite thin films. In Applied Clay Science, 2023, vol. 242, art no. 107037. (2022: 5.6 – IF, Q1 – JCR, 0.985 – SJR, Q1 – SJR). https://doi.org/10.1016/j.clay.2023.107037

ČERNÁK, Juraj – KREŠÁKOVÁ, Lenka – TARASENKO, Róbert – DOROSHENKO, Anastassia – ORENDÁČ, Martin – JANKOVIČ, ĽubošMADEJOVÁ, Jana**. Intercalation of [Ni(bpy)3]2+ complex cation into synthetic saponite: Preparation, characterization and magnetic properties. In Applied Clay Science, 2023, vol. 231, no., art. no. 106728. (2022: 5.6 – IF, Q1 – JCR, 0.985 – SJR, Q1 – SJR). https://doi.org/10.1016/j.clay.2022.106728

ZHANG, Bowen – WANG, Qingchen – CHANG, Xiaofeng – DU, Weichao – ZHANG, Fan – KURUC, Michal – SLANÝ, Michal** – CHEN, Gang**. Use of Highly Dispersed Mixed Metal Hydroxide Gel Compared to Bentonite Based Gel for Application in Drilling Fluid under Ultra-High Temperatures. In Gels: open access journal, 2023, vol. 9, no. 7, art. no. 513, 15 p. (2022: 4.6 – IF, Q1 – JCR, 0.548 – SJR, Q2 – SJR). https://doi.org/10.3390/gels9070513

SLANÝ, Michal** – KUZIELOVÁ, Eva – ŽEMLIČKA, Matúš – MATEJDES, Marián – STRUHÁROVÁ, Alena – PALOU, Martin T. Metabentonite and metakaolin‑based geopolymers/zeolites: relation between kind of clay, calcination temperature and concentration of alkaline activator. In Journal of Thermal Analysis and Calorimetry, 2023, vol. 148, no. 20, p. 10531-10547. (2022: 4.4 – IF, Q1 – JCR, 0.753 – SJR, Q1 – SJR). https://doi.org/10.1007/s10973-023-12267-1

MADEJOVÁ, Jana** – BARLOG, MartinSLANÝ, Michal – BASHIR, Sanam – SCHOLTZOVÁ, Eva – TUNEGA, Daniel – JANKOVIČ, Ľuboš. Advanced materials based on montmorillonite modified with poly(ethylenimine) and poly(2-methyl-2-oxazoline): Experimental and DFT study. In Colloids and Surfaces A: Physicochemical and Engineering Aspects, 2023, vol. 659, art. no. 130784. (2022: 5.2 – IF, Q2 – JCR, 0.792 – SJR, Q1 – SJR). https://doi.org/10.1016/j.colsurfa.2022.130784

ZHOU, Zhichao – ZHANG, Wangyuan – YU, Tao – LI, Yongfei – STRUHÁROVÁ, Alena – MATEJDES, MariánSLANÝ, Michal** – CHEN, Gang**. The Effect of Sodium Bentonite in the Thermo-Catalytic Reduction of Viscosity of Heavy Oils. In Molecules, 2023, vol. 28, no.6, art. no. 2651, 21 p. (2022: 4.6 – IF, Q2 – JCR, 0.704 – SJR, Q1 – SJR, karentované – CCC). https://doi.org/10.3390/molecules28062651

BUJDÁK, Juraj**. Controversial Issues Related to Dye Adsorption on Clay Minerals: A Critical Review. In Molecules, 2023, vol. 28, iss. 19, art no. 6951. (2022: 4.6 – IF, Q2 – JCR, 0.704 – SJR, Q1 – SJR, karentované – CCC). https://doi.org/10.3390/molecules28196951

BUJDÁK, Juraj** – ŠIMONOVÁ, TímeaBOHÁČ, Peter – MÉSZÁROS, Róbert*. Adsorption of Dye Molecules and Its Potential for the Development of Photoactive Hybrid Materials Based on Layered Silicates. In Journal of Physical Chemistry B, 2023, vol. 127, iss. 5, pp. 1063-1073. (2022: 3.3 – IF, Q3 – JCR, 0.795 – SJR, Q1 – SJR). https://doi.org/10.1021/acs.jpcb.2c07814



International and National Projects

Towards nanotechnologies using bioactive particles/molecules in the fight against microbial biofilms
( Smerom k nanotechnológiám využívajúcim bioaktívne častice/molekuly v boji proti mikrobiálnym biofilmom)
Programme: APVV-21-0302
Project coordinator: Faculty of Natural Sciences Comenius University
Project coordinator IIC: Ing. Helena Pálková, PhD.
Duration: 07/2022-06/2026
Bentonite – GAP Bentonite: Slovak strategic raw material – Innovative assessment of bentonite quality and origin for its efficient use
( Bentonit: Strategická surovina Slovenska – Inovatívne hodnotenie zdrojov a ich kvality pre efektívne využívanie)
Programme: APVV-20-0175
Project coordinator: Faculty of Natural Sciences Comenius University
Project coordinator IIC: RNDr. Jana Madejová, DrSc.
Duration: 07/2021-06/2025
Potential of layered aluminosilicates as excellent guests to accommodate polymeric cations: design of new composite materials
(Potenciál vrstevnatých aluminosilikátov ako excelentných nosičov polykatiónov: dizajnovanie nových kompozitných nanomateriálov)
Programme: VEGA 2/0166/21
Project coordinator IIC: Ing. Helena Pálková, PhD.
Duration: 01/2021-12/2024
BioPolSil – Bionanocomposites based on organic polycations and layered silicates
(Bionanokompozitné materiály na báze vrstevnatých silikátov)
Programme: APVV-19-0487
Project coordinator IIC: RNDr. Madejová Jana DrSc.
Partner: Institute of Polymers SAS
Duration: 07/2020-06/2024
Polymer surfaces modified with layered nanoparticles and photoactive dyes
(Povrchy polymérov modifikované vrstevnatými nanočasticami a fotoaktívnymi farbivami)
Programme: APVV-18-0075
Project coordinator: Faculty of Natural Sciences Comenius University
Project coordinator IIC: Ing. Pálková Helena PhD.
Duration: 07/2019-06/2023



Foreign cooperating institutions

  • Heyrovsky Institute of Physical Chemistry of the ASCR, Prague, Czech Republic
  • Institute of Chemistry, Academy of Sciences of the Czech Republic, Czech Republic
  • Institute of Catalysis and Surface Chemistry, Polish Academy of Sciences, Krakow, Poland
  • Institute of Polymers, Bulgarian Academy of Sciences, Sofia, Bulgaria
  • University of Poitiers, CNRS, HydrASA, Poitiers, France
  • University of Aveiro, Aveiro, Portugal
  • University of Ioannina, Ioannina, Greece
  • Sheffield Hallam University, Sheffield, UK
  • National Institute for Materials Science, Tsukuba, Japan
  • Nagoya University, Graduate School of Engineering, Nagoya, Japan
  • Tokyo Metropolitan University Faculty of Urban Environmental Sciences, Tokyo, Japan
  • Yamaguchi University, Graduate School of Medicine, Yamaguchi, Japan
  • University of Illinois, Champaign-Urbana, USA
  • Monash University, Melbourne, Australia