- 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.…
MetadatenVerfasserangaben: | Stefanie KrügerGND, Michael Schwarze, Otto BaumannORCiDGND, Christina GünterGND, Michael BrunsORCiD, Christian KübelORCiD, Dorothee Vinga SzaboORCiD, Rafael Meinusch, Veronica de Zea BermudezORCiD, Andreas TaubertORCiDGND |
---|
DOI: | https://doi.org/10.3762/bjnano.9.21 |
---|
ISSN: | 2190-4286 |
---|
Pubmed ID: | https://pubmed.ncbi.nlm.nih.gov/29441264 |
---|
Titel des übergeordneten Werks (Englisch): | Beilstein journal of nanotechnology |
---|
Untertitel (Englisch): | combining renewable raw materials with clean fuels |
---|
Verlag: | Beilstein-Institut zur Förderung der Chemischen Wissenschaften |
---|
Verlagsort: | Frankfurt, Main |
---|
Publikationstyp: | Wissenschaftlicher Artikel |
---|
Sprache: | Englisch |
---|
Datum der Erstveröffentlichung: | 17.01.2018 |
---|
Erscheinungsjahr: | 2018 |
---|
Datum der Freischaltung: | 14.02.2022 |
---|
Freies Schlagwort / Tag: | Bombyx mori silk; gold; photocatalytic water splitting; titania |
---|
Band: | 9 |
---|
Seitenanzahl: | 18 |
---|
Erste Seite: | 187 |
---|
Letzte Seite: | 204 |
---|
Fördernde 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) |
---|
Organisationseinheiten: | Mathematisch-Naturwissenschaftliche Fakultät / Institut für Chemie |
---|
DDC-Klassifikation: | 6 Technik, Medizin, angewandte Wissenschaften / 62 Ingenieurwissenschaften / 620 Ingenieurwissenschaften und zugeordnete Tätigkeiten |
---|
Peer Review: | Referiert |
---|
Publikationsweg: | Open Access / Gold Open-Access |
---|
| DOAJ gelistet |
---|
Lizenz (Deutsch): | CC-BY - Namensnennung 4.0 International |
---|
Externe Anmerkung: | Zweitveröffentlichung in der Schriftenreihe Postprints der Universität Potsdam : Postprints der Universität Potsdam : Mathematisch-Naturwissenschaftliche Reihe ; 581 |
---|