A5052044736- Advanced Photocatalysis Techniques
- TiO2 Photocatalysis and Solar Cells
- Gas Sensing Nanomaterials and Sensors
- Advanced Nanomaterials in Catalysis
- Analytical Chemistry and Sensors
- Electrochemical sensors and biosensors
- Electrochemical Analysis and Applications
- Pigment Synthesis and Properties
- Polyoxometalates: Synthesis and Applications
- Innovative Microfluidic and Catalytic Techniques Innovation
- Catalytic Processes in Materials Science
- Surface Chemistry and Catalysis
- Perovskite Materials and Applications
- Luminescence and Fluorescent Materials
- Electronic and Structural Properties of Oxides
- Copper-based nanomaterials and applications
- Photodynamic Therapy Research Studies
- Chemical Synthesis and Reactions
- Transition Metal Oxide Nanomaterials
- Dyeing and Modifying Textile Fibers
- Nanocluster Synthesis and Applications
- Nanoplatforms for cancer theranostics
- Oxidative Organic Chemistry Reactions
- Isotope Analysis in Ecology
- Conservation Techniques and Studies
Jagiellonian University
2015-2024
Faculty (United Kingdom)
2014-2020
Cracow University of Technology
2018
The photocatalytic activity of materials synthesized by titanium dioxide impregnation with chromates(VI) was studied in the processes 4-chlorophenol oxidation and photocurrent generation. show measurable when excited visible light. Electron paramagnetic resonance (EPR) studies revealed presence chromium(V) species even without irradiation. Detection photogenerated reactive oxygen species, together elucidation electrochemical properties materials, enabled assumption a very unique mechanism...
Titania particles modified with an extremely small amount (<0.01 mol%) of a rhodium species exhibited photocatalytic activity for the oxidative decomposition acetaldehyde in air under visible-light irradiation. The reaction proceeded via two-photon band-gap excitation mechanism resembling Z-scheme external redox couple, using built-in Rh(iii)-Rh(iv) couple.
Visible light-induced redox reactions of low-concentration rhodium-introduced titania proceeded through two photoexcitation rhodium(<sc>iii</sc>) to the conduction band and an electron in valence thus-generated rhodium(<sc>iv</sc>).
We report on alkyne-functionalized ZnO NCs, their efficient phase transfer protocol <italic>via</italic> surface modification and the unprecedented (for II–VI semiconductors) AEE phenomenon.
The core-shell NaYb0.99F4:Tm0.01@NaYF4 upconverting particles (UCPs) with a high UV emission to apply in NIR-driven photocatalysis were synthesized. influence of the Yb3+ doping concentration NaYxF4:Yb0.99−xTm0.01 core particles, and role NaYF4 shell on upconversion intensity UCPs studied. absorption NIR light by obtained was maximized increasing core, reaching maximum for Y3+-free (NaYb0.99F4:Tm0.01). Additionally, covering NaYb0.99F4:Tm0.01 protective layer minimized surface luminescence...
In the pre-Hispanic Central Andes, mummified bodies of ancestors stood as basis for social and cosmic order. This work discusses chemical compositions determined by using molecular elemental analytical methods.
Photocatalytic systems based on upconverting particles often require a complex, multi-component design. We demonstrate how to boost their photocatalytic activity by neither increasing complexity nor changing chemical nature.
Correction for ‘Rhodium-doped titania photocatalysts with two-step bandgap excitation by visible light—influence of the dopant concentration on photosensitization efficiency’ J. Kuncewicz and B. Ohtani, <italic>RSC Adv.</italic>, 2016, <bold>6</bold>, 77201–77211.
Abstract Colloidal coordination compounds in the sub‐micrometer range were synthesized from a chloro gold(I) carbene complex via anti‐solvent procedure and stabilized by surfactant shell of Tween 20. This compound was successfully applied as model system to monitor heterogeneous multiphase ligand substitution reactions at solid–liquid interface.
Abstract Colloidal coordination compounds in the sub‐micrometer range were synthesized from a chloro gold(I) carbene complex via anti‐solvent procedure and stabilized by surfactant shell of Tween 20. This compound was successfully applied as model system to monitor heterogeneous multiphase ligand substitution reactions at solid–liquid interface.
Titanium(IV) oxide (titania) constitutes one of the most common base for highly active photocatalysts due to proper electronic structure and physicochemical properties. The main drawback this wide bandgap semiconductor is range effective light which limited ultraviolet radiation. Bulk modification titania with some transition metal ions allows extend its photocatalytic activity toward visible light, however, origin often not sufficiently explained. Although a lot studies were devoted bulk...
Polymeric carbon nitrides (PCN) are sustainable, tunable, non-toxic and chemically stable materials that represent highly promising heterogeneous photocatalysts for light-driven hydrogen peroxide production via selective reduction of dioxygen. However, most the studies on photocatalytic H2O2 using PCN-based reported so far have used PCN powder suspensions been carried out in presence additional (sacrificial) electron donors, such as aliphatic or aromatic alcohols. Herein, we report first...
Polymeric carbon nitrides (PCN) are sustainable, tunable, non-toxic and chemically stable materials that represent highly promising heterogeneous photocatalysts for light-driven hydrogen peroxide production via selective reduction of dioxygen. However, most the studies on photocatalytic H2O2 using PCN-based reported so far have used PCN powder suspensions been carried out in presence additional (sacrificial) electron donors, such as aliphatic or aromatic alcohols. Herein, we report first...