- 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.…
MetadatenAuthor details: | 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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Title of parent work (English): | Postprints der Universität Potsdam Mathematisch-Naturwissenschaftliche Reihe |
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Subtitle (English): | combining renewable raw materials with clean fuels |
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Publication series (Volume number): | Zweitveröffentlichungen der Universität Potsdam : Mathematisch-Naturwissenschaftliche Reihe (581) |
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Publication type: | Postprint |
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Language: | English |
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Date of first publication: | 2019/02/07 |
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Publication year: | 2018 |
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Publishing institution: | Universität Potsdam |
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Release date: | 2019/02/07 |
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Tag: | Bombyx mori silk; gold; photocatalytic water splitting; titania |
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Issue: | 581 |
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Number of pages: | 18 |
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Source: | Beilstein Journal of Nanotechnology 9 (2018) S. 187–204 DOI: 10.3762/bjnano.9.21 |
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Organizational units: | Mathematisch-Naturwissenschaftliche Fakultät |
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DDC classification: | 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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Publishing method: | Open Access |
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License (German): | CC-BY - Namensnennung 4.0 International |
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External remark: | Bibliographieeintrag der Originalveröffentlichung/Quelle |
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