Controlling morphology, mesoporosity, crystallinity, and photocatalytic activity of ordered mesoporous TiO2 films prepared at low temperature
Source abstract
Abstract
Partly ordered mesoporous titania films with anatase crystallites incorporated into the pore walls were prepared at low temperature by spin-coating a microemulsion-based reaction solution. The effect of relative humidity employed during aging of the prepared films was studied using SEM, TEM, and grazing incidence small angle X-ray scattering to evaluate the mesoscopic order, porosity, and crystallinity of the films. The study shows unambiguously that crystal growth occurs mainly during storage of the films and proceeds at room temperature largely depending on relative humidity. Porosity, pore size, mesoscopic order, crystallinity, and photocatalytic activity of the films increased with relative humidity up to an optimum around 75%.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Mesoporous Materials and Catalysis · TiO2 Photocatalysis and Solar Cells · Advanced Photocatalysis Techniques
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Applied Surface Chemistry, Department of Chemical and Biological Engineering, Chalmers University of Technology, SE 412 96 Göteborg, Sweden
Graduate School of EEWS (WCU), KAIST, Daejeon 305-701, South Korea
Lehrstuhl für Funktionelle Materialien, Physik-Department, Technische Universität München, 85748 Garching, Germany
DESY, Notkestrasse 85, 22603 Hamburg, Germany
Department of Chemistry, Sogang University, Seoul 121-742, South Korea
Funding
The Bavarian State Ministry of Sciences, Research and Arts
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