- The synthesis, structure, and photocatalytic water splitting performance of two new titania (TiO 2 )/gold(Au)/Bombyx mori silk hybrid materials are reported. All materials are monoliths with diameters of up to ca. 4.5 cm. The materials are macroscopically homogeneous and porous with surface areas between 170 and 210 m 2/g. The diameter of the TiO 2 nanoparticles (NPs) – mainly anatase with a minor fraction of brookite – and the Au NPs are on the order of 5 and 7–18 nm, respectively. Addition of poly(ethylene oxide) to the reaction mixture enables pore size tuning, thus providing access to different materials with different photocatalytic activities. Water splitting experiments using a sunlight simulator and a Xe lamp show that the new hybrid materials are effective water splitting catalysts and produce up to 30 mmol of hydrogen per 24 h. Overall the article demonstrates that the combination of a renewable and robust scaffold such as B. mori silk with a photoactive material provides a promising approach to new monolithic photocatalystsThe synthesis, structure, and photocatalytic water splitting performance of two new titania (TiO 2 )/gold(Au)/Bombyx mori silk hybrid materials are reported. All materials are monoliths with diameters of up to ca. 4.5 cm. The materials are macroscopically homogeneous and porous with surface areas between 170 and 210 m 2/g. The diameter of the TiO 2 nanoparticles (NPs) – mainly anatase with a minor fraction of brookite – and the Au NPs are on the order of 5 and 7–18 nm, respectively. Addition of poly(ethylene oxide) to the reaction mixture enables pore size tuning, thus providing access to different materials with different photocatalytic activities. Water splitting experiments using a sunlight simulator and a Xe lamp show that the new hybrid materials are effective water splitting catalysts and produce up to 30 mmol of hydrogen per 24 h. Overall the article demonstrates that the combination of a renewable and robust scaffold such as B. mori silk with a photoactive material provides a promising approach to new monolithic photocatalysts that can easily be recycled and show great potential for application in lightweight devices for green fuel production.…
MetadatenVerfasserangaben: | Stefanie KrügerGND, Michael Schwarze, Otto BaumannORCiDGND, Christina GünterGND, Michael BrunsORCiD, Christian KübelORCiD, Dorothée Vinga SzabóORCiD, Rafael Meinusch, Verónica de Zea BermudezORCiD, Andreas TaubertORCiDGND |
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URN: | urn:nbn:de:kobv:517-opus4-423499 |
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DOI: | https://doi.org/10.25932/publishup-42349 |
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ISSN: | 1866-8372 |
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Titel des übergeordneten Werks (Englisch): | Postprints der Universität Potsdam Mathematisch-Naturwissenschaftliche Reihe |
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Untertitel (Englisch): | combining renewable raw materials with clean fuels |
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Schriftenreihe (Bandnummer): | Zweitveröffentlichungen der Universität Potsdam : Mathematisch-Naturwissenschaftliche Reihe (581) |
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Publikationstyp: | Postprint |
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Sprache: | Englisch |
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Datum der Erstveröffentlichung: | 07.02.2019 |
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Erscheinungsjahr: | 2018 |
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Veröffentlichende Institution: | Universität Potsdam |
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Datum der Freischaltung: | 07.02.2019 |
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Freies Schlagwort / Tag: | Bombyx mori silk; gold; photocatalytic water splitting; titania |
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Ausgabe: | 581 |
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Seitenanzahl: | 18 |
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Quelle: | Beilstein Journal of Nanotechnology 9 (2018) S. 187–204 DOI: 10.3762/bjnano.9.21 |
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Organisationseinheiten: | Mathematisch-Naturwissenschaftliche Fakultät |
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DDC-Klassifikation: | 5 Naturwissenschaften und Mathematik / 54 Chemie / 540 Chemie und zugeordnete Wissenschaften |
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| 6 Technik, Medizin, angewandte Wissenschaften / 62 Ingenieurwissenschaften / 620 Ingenieurwissenschaften und zugeordnete Tätigkeiten |
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Peer Review: | Referiert |
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Publikationsweg: | Open Access |
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Lizenz (Deutsch): | CC-BY - Namensnennung 4.0 International |
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Externe Anmerkung: | Bibliographieeintrag der Originalveröffentlichung/Quelle |
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