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Ewa Kowalska
Researcher at Hokkaido University
Publications - 117
Citations - 4567
Ewa Kowalska is an academic researcher from Hokkaido University. The author has contributed to research in topics: Photocatalysis & Anatase. The author has an hindex of 29, co-authored 96 publications receiving 3542 citations. Previous affiliations of Ewa Kowalska include University of Erlangen-Nuremberg & Gdańsk University of Technology.
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Visible-light-induced photocatalysis through surface plasmon excitation of gold on titania surfaces
TL;DR: Large rutile particles loaded with gold particles of a wide range of sizes showed the highest level of photocatalytic activity, possibly due to greater light absorption ability in a wide wavelength range resulting from transverse and longitudinal LSPR of rod-like gold particles.
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Visible light-induced photocatalytic reaction of gold-modified titanium(IV) oxide particles: action spectrum analysis
TL;DR: Action spectrum analyses showed that visible light-induced oxidation of 2-propanol by aerated gold-modified titanium(IV) oxide (titania) suspensions is initiated by excitation of gold surface plasmon, and polychromatic irradiation experiments revealed that the photocatalytic reaction rate depends strongly on properties of titania.
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Surface Modification of TiO2 with Ag Nanoparticles and CuO Nanoclusters for Application in Photocatalysis
Maria Guadalupe Méndez-Medrano,Ewa Kowalska,A. Lehoux,Alexandre Herissan,Bunsho Ohtani,Daniel Bahena,V. Briois,Christophe Colbeau-Justin,José Luis Rodríguez-López,Hynd Remita,Hynd Remita +10 more
TL;DR: In this article, the photocatalytic properties of bare and modified TiO2-P25 were studied for phenol photodegradation and for acetic acid oxidation under UV and visible irradiation.
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Preparation and characterization of monometallic (Au) and bimetallic (Ag/Au) modified-titania photocatalysts activated by visible light
Anna Zielińska-Jurek,Ewa Kowalska,Ewa Kowalska,Janusz W. Sobczak,Wojciech Lisowski,Bunsho Ohtani,Adriana Zaleska +6 more
TL;DR: In this article, the photocatalytic activity of noble metals modified-TiO2 powders under visible light irradiation was estimated by measuring the decomposition rate of phenol in an aqueous solution.
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Modification of Titanium Dioxide with Platinum Ions and Clusters: Application in Photocatalysis
TL;DR: In this paper, the physical properties of the synthesized photocatalysts were examined by transmission electron microscopy (TEM), X-ray diffraction (XRD), and Brunauer, Emmett and Teller adsorption (BET) methods.