Elżbieta Szostak

Integrated GC–MS and ATR–FTIR analysis of airborne microplastics captured by spider webs

Elżbieta Szostak, Magdalena Wróbel, Beata Kultys, Joanna Kamińska et autres

Our study evaluated airborne microplastics (MPs) captured by spider webs (Agelenidae) in an urban environment (Wrocław, Poland). GC-MS was used to characterize extractable organic compounds linked to MPs, while ATR-FTIR spectroscopy enabled detection of polymer-related signals in solid residues after solvent extraction. …

pl (code pays fourni par la source)

Thermal Stability, Polymorphism, and Spectroscopic Properties of [Mn(DMSO)6](ReO4)2

Joanna Hetmańczyk, Łukasz Hetmańczyk, Wojciech Nitek, Magdalena Rok et autres

pl (code pays fourni par la source)

Influence of Rare Earth Substitution on the Photocatalytic Efficiency of Spinel Ferrite Nanoparticles

Julia Mazurenko, Larysa S. Kaykan, Jan Marek Michalik, Elżbieta Szostak et autres

Samarium-substituted cobalt–copper ferrite nanoparticles were synthesized via citrate sol-gel auto-combustion method and applied for photocatalytic degradation of Methylene Blue under simulated sunlight. XRD confirmed single-phase spinel structure (Fd3m), with crystallite size decreasing from 23.06 to 17.33 nm due to increased microstrain induced …

ua, pl (code pays fourni par la source)

Impact of cation distribution in shaping the structural and magnetic characteristics of Ni-Cu ferrite

Julia Mazurenko, A. K. Sijo, Larysa S. Kaykan, Jan Marek Michalik et autres

Abstract This study presents the synthesis, characterization and magnetic properties of of Cu1−XNiXFe2O4 nanocrystalline ferrites (0.0 ≤ × ≤ 1.0) using the sol–gel autocombustion method at a neutral pH. The samples were characterized by x-ray powder diffraction (XRD), Fourier-transform infrared spectroscopy (FT-IR), …

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A Study of the Structure of an Anion Exchange Resin with a Quaternary Ammonium Functional Group by Using Infrared Spectroscopy and DFT Calculations

Katarzyna Chruszcz‐Lipska, Elżbieta Szostak

The large numbers of ion exchange resins used in various industries (food, pharmaceutitics, mining, hydrometallurgy), and especially in water treatment, are based on cross-linked polystyrene and divinylbenzene copolymers with functional groups capable of ion exchange. Their advantage, which makes them environmentally friendly, …

pl (code pays fourni par la source)

Magneto-structural properties of Mg-substituted copper ferrite nanoparticles

Julia Mazurenko, A. K. Sijo, Larysa S. Kaykan, Jan Marek Michalik et autres

Abstract This study explores the synthesis and characterization of magnesium-substituted copper ferrite (Mg x Cu 1-x Fe 2 O 4 , 0.0≤x≤1.0) nanoparticles using the polymer-assisted sol–gel self-combustion method. The effects of magnesium substitution on the structural, elastic, and magnetic properties of …

ua, pl, in (code pays fourni par la source)

Structural and magnetic studies of Cobalt-Substituted copper ferrites for efficient photocatalytic dye degradation

Julia Mazurenko, Elżbieta Szostak, Łukasz Gondek, Larysa S. Kaykan et autres

ua, pl (code pays fourni par la source)

Enhanced Synthesis of Copper Ferrite Magnetic Nanoparticles via Polymer-Assisted Sol-Gel Autocombustion Method for Magnetic Hyperthermia Applications

Julia Mazurenko, Larysa S. Kaykan, Jan Marek Michalik, Marcin Sikora et autres

In this study, CuFe2O4 nanoparticles with an average crystallite size of approximately 10 nm were produced using the sol-gel autocombustion method. The synthesis was conducted in the presence of polymers with varying monomer counts, aiming to optimize the magnetic properties for possible …

ua, pl, ru (code pays fourni par la source)

Thermal Stability and Non-Linear Optical and Dielectric Properties of Lead-Free K0.5Bi0.5TiO3 Ceramics

Piotr Czaja, Elżbieta Szostak, Joanna Hetmańczyk, Piotr Zachariasz et autres

Lead-free K0.5Bi0.5TiO3 (KBT) ceramics with high density (~5.36 g/cm3, 90% of X-ray density) and compositional purity (up to 90%) were synthesized using a solid-state reaction method. Strongly condensed KBT ceramics revealed homogenous local microstructures. TG/DSC (Thermogravimetry-differential scanning calorimetry) techniques characterized the thermal …

pl (code pays fourni par la source)

Innovative Structural Characterization of Natural Villiaumite Crystal

Katarzyna Chruszcz‐Lipska, Elżbieta Szostak, Krzysztof Kazimierz Zborowski

The work presents the latest scientific research on the far infrared spectrum of the natural mineral villiaumite (chemical formula NaF). The three samples of villiaumite examined came from the Khibiny Mountains in the Kola Peninsula (Russia) and from Mon Saint Hilaire in …

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Study of the Structure and Infrared Spectra of LiF, LiCl and LiBr Using Density Functional Theory (DFT)

Katarzyna Chruszcz‐Lipska, Elżbieta Szostak, Krzysztof Kazimierz Zborowski, Ewa Knapik

The paper presents a study of the crystal structure of anhydrous halides LiF, LiCl and LiBr using density functional theory. Models composed of 125 atoms were used for this study. The theoretical values of the lattice parameters and the distribution of charges …

pl (code pays fourni par la source)

Biocompatibility and potential functionality of lanthanum-substituted cobalt ferrite spinels

Paweł Pęczkowski, Elżbieta Szostak, Ewa Pocheć, Jan Marek Michalik et autres

pl (code pays fourni par la source)