|Autors: Österlund L., Mattsson A., Brischetto M., Byberg JJ., Stefanov, B. I., Ji, Y.-X., Niklasson, G.A.|
Title: Spectral Selective Solar Light Enhanced Photocatalysis: TiO2/TiAlN Bilayer Films
Keywords: TiO2, TiAlN, Photocatalysis, Spectral selective films
Abstract: We demonstrate that spectral selective photocatalytic multilayer films can be tailored such that they can harness the full solar spectrum for enhanced photocatalytic gas-phase oxidation of acetaldehyde. Thin films of anatase TiO2 were deposited on a thin solar absorber TiAlN film to fabricate bilayer TiO2/TiAlN films by dc magnetron sputtering on aluminium substrates. The structural and optical properties of the films were characterized by X-ray diffraction and Raman spectroscopy. The reaction rate and quantum yield for acetaldehyde removal was measured and an almost tenfold enhancement of the quantum yield was observed for the TiO2/TiAlN films compared with the single TiO2 film, on par with enhancements achieved with new heterojunction photocatalysts. The results were interpreted by a temperature-induced change of the reaction kinetics. Absorption of simulated solar light illumination resulted in a temperature increase of the TIAlN film that was estimated to be at most 126 K.
1. Ramos-Ramírez, E., Gutiérrez-Ortega, N.L., Tzompantzi-Morales, F., Barrera-Rodríguez, A., Castillo-Rodríguez, J.C., Tzompantzi-Flores, C., Santolalla-Vargas, C.E., Guevara-Hornedo, M.P. Photocatalytic Degradation of 2,4-Dichlorophenol on NiAl-Mixed Oxides Derivatives of Activated Layered Double Hydroxides (2020) Topics in Catalysis, 63 (5-6), pp. 546-563. - 2020 - в издания, индексирани в Scopus или Web of Science
2. Ji, Y., Mattsson, A., Niklasson, G.A., Granqvist, C.G., Österlund, L. Synergistic TiO2/VO2 Window Coating with Thermochromism, Enhanced Luminous Transmittance, and Photocatalytic Activity (2019) Joule, 3 (10), pp. 2457-2471. - 2019 - в издания, индексирани в Scopus или Web of Science
Вид: статия в списание, публикация в издание с импакт фактор, публикация в реферирано издание, индексирана в Scopus и Web of Science