- The synthesis, structure, and photocatalytic water splitting performance of two new titania (TiO2)/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 TiO2 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 (TiO2)/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 TiO2 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, Dorothee Vinga SzaboORCiD, Rafael Meinusch, Veronica de Zea BermudezORCiD, Andreas TaubertORCiDGND |
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DOI: | https://doi.org/10.3762/bjnano.9.21 |
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ISSN: | 2190-4286 |
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Pubmed ID: | https://pubmed.ncbi.nlm.nih.gov/29441264 |
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Title of parent work (English): | Beilstein journal of nanotechnology |
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Subtitle (English): | combining renewable raw materials with clean fuels |
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Publisher: | Beilstein-Institut zur Förderung der Chemischen Wissenschaften |
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Place of publishing: | Frankfurt, Main |
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Publication type: | Article |
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Language: | English |
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Date of first publication: | 2018/01/17 |
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Publication year: | 2018 |
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Release date: | 2022/02/14 |
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Tag: | Bombyx mori silk; gold; photocatalytic water splitting; titania |
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Volume: | 9 |
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Number of pages: | 18 |
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First page: | 187 |
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Last Page: | 204 |
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Funding institution: | Deutsche ForschungsgemeinschaftGerman Research Foundation (DFG) [SPP 1569, TA571/11-1, TA571/11-2]; Fundacao para a Ciencia e Tecnologia (FCT)/Deutscher Akademischer Austauschdienst (DAAD) Scientific and Technological Cooperation [6818]; University of Potsdam; Fraunhofer-Institute for Applied Polymer Research (FhI-IAP, Golm); Federal Ministry of Economics and TechnologyFederal Ministry for Economic Affairs and Energy (BMWi) |
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Organizational units: | Mathematisch-Naturwissenschaftliche Fakultät / Institut für Chemie |
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DDC classification: | 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 / Gold Open-Access |
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| DOAJ gelistet |
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License (German): | CC-BY - Namensnennung 4.0 International |
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External remark: | Zweitveröffentlichung in der Schriftenreihe Postprints der Universität Potsdam : Postprints der Universität Potsdam : Mathematisch-Naturwissenschaftliche Reihe ; 581 |
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