Controlling morphology, mesoporosity, crystallinity, and photocatalytic activity of ordered mesoporous TiO2 films prepared at low temperature
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,...
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AIP Publishing LLC
2014-11-01
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| Series: | APL Materials |
| Online Access: | http://dx.doi.org/10.1063/1.4899117 |
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doaj-c67db6f2d2e54913a08443319f28a0912020-11-25T00:21:45ZengAIP Publishing LLCAPL Materials2166-532X2014-11-01211113313113313-1310.1063/1.4899117013493APMControlling morphology, mesoporosity, crystallinity, and photocatalytic activity of ordered mesoporous TiO2 films prepared at low temperatureBjörn Elgh0Ning Yuan1Hae Sung Cho2David Magerl3Martine Philipp4Stephan V. Roth5Kyung Byung Yoon6Peter Müller-Buschbaum7Osamu Terasaki8Anders E. C. Palmqvist9Applied Surface Chemistry, Department of Chemical and Biological Engineering, Chalmers University of Technology, SE 412 96 Göteborg, SwedenApplied Surface Chemistry, Department of Chemical and Biological Engineering, Chalmers University of Technology, SE 412 96 Göteborg, SwedenGraduate School of EEWS (WCU), KAIST, Daejeon 305-701, South KoreaLehrstuhl für Funktionelle Materialien, Physik-Department, Technische Universität München, 85748 Garching, GermanyLehrstuhl für Funktionelle Materialien, Physik-Department, Technische Universität München, 85748 Garching, GermanyDESY, Notkestrasse 85, 22603 Hamburg, GermanyDepartment of Chemistry, Sogang University, Seoul 121-742, South KoreaLehrstuhl für Funktionelle Materialien, Physik-Department, Technische Universität München, 85748 Garching, GermanyGraduate School of EEWS (WCU), KAIST, Daejeon 305-701, South KoreaApplied Surface Chemistry, Department of Chemical and Biological Engineering, Chalmers University of Technology, SE 412 96 Göteborg, Sweden 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%. http://dx.doi.org/10.1063/1.4899117 |
| collection |
DOAJ |
| language |
English |
| format |
Article |
| sources |
DOAJ |
| author |
Björn Elgh Ning Yuan Hae Sung Cho David Magerl Martine Philipp Stephan V. Roth Kyung Byung Yoon Peter Müller-Buschbaum Osamu Terasaki Anders E. C. Palmqvist |
| spellingShingle |
Björn Elgh Ning Yuan Hae Sung Cho David Magerl Martine Philipp Stephan V. Roth Kyung Byung Yoon Peter Müller-Buschbaum Osamu Terasaki Anders E. C. Palmqvist Controlling morphology, mesoporosity, crystallinity, and photocatalytic activity of ordered mesoporous TiO2 films prepared at low temperature APL Materials |
| author_facet |
Björn Elgh Ning Yuan Hae Sung Cho David Magerl Martine Philipp Stephan V. Roth Kyung Byung Yoon Peter Müller-Buschbaum Osamu Terasaki Anders E. C. Palmqvist |
| author_sort |
Björn Elgh |
| title |
Controlling morphology, mesoporosity, crystallinity, and photocatalytic activity of ordered mesoporous TiO2 films prepared at low temperature |
| title_short |
Controlling morphology, mesoporosity, crystallinity, and photocatalytic activity of ordered mesoporous TiO2 films prepared at low temperature |
| title_full |
Controlling morphology, mesoporosity, crystallinity, and photocatalytic activity of ordered mesoporous TiO2 films prepared at low temperature |
| title_fullStr |
Controlling morphology, mesoporosity, crystallinity, and photocatalytic activity of ordered mesoporous TiO2 films prepared at low temperature |
| title_full_unstemmed |
Controlling morphology, mesoporosity, crystallinity, and photocatalytic activity of ordered mesoporous TiO2 films prepared at low temperature |
| title_sort |
controlling morphology, mesoporosity, crystallinity, and photocatalytic activity of ordered mesoporous tio2 films prepared at low temperature |
| publisher |
AIP Publishing LLC |
| series |
APL Materials |
| issn |
2166-532X |
| publishDate |
2014-11-01 |
| description |
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%.
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| url |
http://dx.doi.org/10.1063/1.4899117 |
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