M. Radecka
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View article: Surface and bulk properties of black, blue and transparent TiO <sub> <i>x</i> </sub> thin-film photoanodes for green hydrogen generation by water splitting
Surface and bulk properties of black, blue and transparent TiO <sub> <i>x</i> </sub> thin-film photoanodes for green hydrogen generation by water splitting Open
TiO x thin films were deposited by RF sputtering for green hydrogen generation. The optimized photoelectrochemical performance of photoanodes composed of anatase/rutile or anatase could be correlated with their morphology and surface defec…
View article: MXene/Bacterial Cellulose Hybrid Materials for Sustainable Soft Electronics
MXene/Bacterial Cellulose Hybrid Materials for Sustainable Soft Electronics Open
This work evaluated bacterial cellulose (BC) as a possible biodegradable soft electronics substrate in comparison to polyethylene terephthalate (PET), while also focusing on evaluating hybrid MXene/BC material as potential flexible electro…
View article: Unraveling the Impact of Adsorbed Molecules on Photocatalytic Processes: Advancements in Understanding Facet-Controlled Semiconductor Photocatalysts
Unraveling the Impact of Adsorbed Molecules on Photocatalytic Processes: Advancements in Understanding Facet-Controlled Semiconductor Photocatalysts Open
This work aims to demonstrate that the Fe2O3 nanocrystals’ adsorptive and photocatalytic properties can be adjusted by exposing the crystal facets that are functionalized. To this end, cube- and disc-like structures were synthesized using …
View article: MgAl2O4 spinel with transmittance approaching theoretical value at reduced sintering temperatures
MgAl2O4 spinel with transmittance approaching theoretical value at reduced sintering temperatures Open
Magnesium aluminate spinel is known to be a material with a good combination of mechanical properties, resistance against chemical attack and a high melting point, being thus a very promising material for application as a transparent mater…
View article: Tunable Generation of Reactive Oxygen Species in SnO<sub>2</sub>/SnS<sub>2</sub> Nanostructures: Mechanistic Insights into Indigo Carmine Photodegradation
Tunable Generation of Reactive Oxygen Species in SnO<sub>2</sub>/SnS<sub>2</sub> Nanostructures: Mechanistic Insights into Indigo Carmine Photodegradation Open
In semiconductor-based photocatalysis, one of the most significant directions in future research is designing materials with improved activity for the targeted photodegradation of organic contaminants. However, obtaining such photocatalyst…
View article: Unraveling the Role of Sodium Thiosulfate in Copper Sulfide Synthesis
Unraveling the Role of Sodium Thiosulfate in Copper Sulfide Synthesis Open
Our study reveals that the green copper sulfide synthesis from sodium thiosulfate and copper salts is a two-step process, where an intermediate product acts as a sacrificial template. The effect of various synthesis parameters, including t…
View article: 3D Flower-like TiO2 Nanostructures: Anatase-To-Rutile Phase Transformation and Photoelectrochemical Application
3D Flower-like TiO2 Nanostructures: Anatase-To-Rutile Phase Transformation and Photoelectrochemical Application Open
Flower-like TiO2 nanostructures were obtained by chemical oxidation of Ti foil using H2O2 combined with subsequent annealing. This paper offers an analysis of the phase transformation of 3D flower-like titanium dioxide nanostructures. The …
View article: Surface and interface properties of TiO2/CuO thin film bilayers deposited by rf reactive magnetron sputtering
Surface and interface properties of TiO2/CuO thin film bilayers deposited by rf reactive magnetron sputtering Open
Thin film bilayers of TiO2/CuO with intentionally varied thickness of the top layer of TiO2 (25–150 nm) were grown by means of sequential rf magnetron reactive sputtering from Cu and Ti metallic targets in a flow rate-controlled Ar + O2 ga…
View article: Near-infrared to visible and ultraviolet upconversion in TiO<sub>2</sub> thin films modified with Er and Yb
Near-infrared to visible and ultraviolet upconversion in TiO<sub>2</sub> thin films modified with Er and Yb Open
TiO 2 :Er and TiO 2 :Er,Yb thin films deposited by magnetron sputtering showed upconversion from NIR to VIS with main emission in green ( λ em ≈ 525 nm). The higher content of activator and sensitizer resulted in increased upconversion and…
View article: Tailoring the electrocatalytic activity of multicomponent (Co,Fe,Ni)<sub>9</sub>S<sub>8−<i>x</i></sub>Se<sub><i>x</i></sub> pentlandite solid electrodes
Tailoring the electrocatalytic activity of multicomponent (Co,Fe,Ni)<sub>9</sub>S<sub>8−<i>x</i></sub>Se<sub><i>x</i></sub> pentlandite solid electrodes Open
The multi-component approach to materials design, together with the adaptation of the processing conditions, is gaining increasing popularity in energy-conversion-oriented applications allowing highly effective catalysts to be obtained.
View article: Debinding of additively manufactured parts from spinel powders with particle sizes below 200 nm
Debinding of additively manufactured parts from spinel powders with particle sizes below 200 nm Open
The widespread application of additive manufacturing in ceramics is still hindered by recurrent cracking issues during debinding. To date, the various strategies that have been attempted to reduce this problem often fail upon particle size…
View article: Effect of brookite on the photocatalytic properties of mixed-phase TiO2 obtained at a higher temperature
Effect of brookite on the photocatalytic properties of mixed-phase TiO2 obtained at a higher temperature Open
The paper presents the synthesis and properties of nanometric TiO2 powders obtained by the sol–gel method at elevated temperatures. The presence of brookite inhibits the anatase - rutile transformation at higher temperatures. Even after th…
View article: The impact of nanometric Fe2O3 on the magnetic, electronic, and photocatalytic behavior of TiO2@Fe2O3 heterostructures
The impact of nanometric Fe2O3 on the magnetic, electronic, and photocatalytic behavior of TiO2@Fe2O3 heterostructures Open
The synthesis method we used enables the homogeneous deposition of both relatively large and small Fe2O3 nanoparticles on the surface of TiO2. SAED analysis shows that TiO2 NCs crystallize in anatase form and Fe2O3 as hematite in all cases…
View article: Photoelectrochemical activity of the nanostructured electrodes based on the SnO2/SnS2 – Heterojunction type II vs S-scheme mechanism
Photoelectrochemical activity of the nanostructured electrodes based on the SnO2/SnS2 – Heterojunction type II vs S-scheme mechanism Open
In photoelectrochemical cells (PECs), the water-splitting process requires a directed electron flow. Therefore, the interface structure between the photoelectrode components is crucial for its photoelectrochemical activity. In the presente…
View article: Influence of Er and Yb on photoelectrochemical performance of TiO2 thin film
Influence of Er and Yb on photoelectrochemical performance of TiO2 thin film Open
The strategy of modifying the titanium dioxide photoanode with an internal upconverter containing Er activator and Yb sensitizer was proposed. To assess the impact of rare earth ions, thin film TiO2, TiO2:Er, and TiO2:Er,Yb were deposited …
View article: Evolution of surface properties of titanium oxide thin films
Evolution of surface properties of titanium oxide thin films Open
Titanium oxide thin films were deposited by rf magnetron sputtering of Ti metallic target in flow-controlled O2 + Ar atmosphere. Comprehensive investigations of crystallographic structure, phase composition, morphology and optical properti…
View article: Transition metal sulfides for electrochemical applications: Controlled chemical conversion of CuS to Ag2S
Transition metal sulfides for electrochemical applications: Controlled chemical conversion of CuS to Ag2S Open
Transition metal sulfides have received great attention as electrocatalysts for electrochemical sensors and water electrolysis. In the present study, a facile and rapid chemical conversion route was used for the synthesis of partially and …
View article: Scavenger-Supported Photocatalytic Evidence of an Extended Type I Electronic Structure of the TiO<sub>2</sub>@Fe<sub>2</sub>O<sub>3</sub> Interface
Scavenger-Supported Photocatalytic Evidence of an Extended Type I Electronic Structure of the TiO<sub>2</sub>@Fe<sub>2</sub>O<sub>3</sub> Interface Open
Heterostructures of TiO2@Fe2O3 with a specific electronic structure and morphology enable us to control the interfacial charge transport necessary for their efficient photocatalytic performance. In spite of the extensive research, there st…
View article: Electrochemical Characterization of Modified Glassy Carbon Electrodes for Non-Enzymatic Glucose Sensors
Electrochemical Characterization of Modified Glassy Carbon Electrodes for Non-Enzymatic Glucose Sensors Open
The diversity of materials proposed for non-enzymatic glucose detection and the lack of standardized protocols for assessing sensor performance have caused considerable confusion in the field. Therefore, methods for pre-evaluation of worki…
View article: Determination of percolation threshold in cement composites with expanded graphite by impedance spectroscopy
Determination of percolation threshold in cement composites with expanded graphite by impedance spectroscopy Open
The following paper presents the method of determination of the percolation threshold in cement composites with expanded graphite by impedance spectroscopy. Most of the applications of cement composites with conductive additives require ex…
View article: New insights into the formation of multi-core–shell mesoporous SnO<sub>2</sub>@SnS<sub>2</sub> nanostructures
New insights into the formation of multi-core–shell mesoporous SnO<sub>2</sub>@SnS<sub>2</sub> nanostructures Open
SnO2@SnS2 multi-core–shell heterostructures were synthesised via chemical conversion of mesoporous raspberry-like SnO2 nanocrystals. In the syntheses, different concentrations of a sulphide precursor (thioacetamide) were applied. The sampl…
View article: Optically Active TiO2:Er Thin Films Deposited by Magnetron Sputtering
Optically Active TiO2:Er Thin Films Deposited by Magnetron Sputtering Open
Titanium dioxide photoanodes for hydrogen generation suffer from a profound mismatch between the optical absorption of TiO2 and the solar spectrum. To solve the problem of low solar-to-chemical efficiency, optically active materials are pr…