Facile synthesis of new, highly efficient SnO2/carbon nitride composite photocatalysts for the hydrogen evolution reaction

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dc.contributor.authorFettkenhauer, Christian
dc.contributor.authorClavel, Guylhaine
dc.contributor.authorKailasam, Kamalakannan
dc.contributor.authorAntonietti, Markus
dc.contributor.authorDontsova, Dariya
dc.date.accessioned2017-10-25T06:27:18Z
dc.date.available2017-10-25T06:27:18Z
dc.date.issued2015
dc.description.abstractNovel SnO2/carbon nitride photocatalysts having surface areas up to 220 m(2) g(-1) were prepared for the first time by condensation of dicyandiamide in alkali metal chloride/SnCl2-containing salt melts at 550 degrees C, without the use of hard templates. XRD and HR-TEM investigations showed that the obtained materials are composed of 5-10 nm SnO2 nanoparticles deposited onto nanosheets set up from 1D-melon ribbons. The morphology and crystalline structure of products appear to be greatly dependent on the synthesis temperature. SnO2/carbon nitride composites are found to be highly efficient in the photocatalytic reactions, as exemplified by Rhodamine B degradation and water reduction using Pt as a cocatalyst. Under the optimized synthesis conditions, these composite photocatalysts achieve hydrogen evolution rates more than 2 times higher than the mesoporous carbon nitride (mp-CN) under visible light irradiation. In principle, this new method based on utilization of MCl/SnCl2 salt melts as a reaction medium allows carrying out various polymerization reactions in the presence of the mild Lewis acid in the solution phase in the wide temperature range of 180-550 degrees C. Moreover, SnCl2 eutectics are even suitable for post-synthesis modification of the bulk carbon nitride to tune its morphology and greatly increase the surface area and photocatalytic activity.en
dc.identifier.eissn1463-9270
dc.identifier.issn1463-9262
dc.identifier.urihttps://depositonce.tu-berlin.de/handle/11303/6952
dc.identifier.urihttp://dx.doi.org/10.14279/depositonce-6291
dc.language.isoen
dc.rights.urihttps://creativecommons.org/licenses/by/3.0/
dc.subject.ddc540 Chemie und zugeordnete Wissenschaftende
dc.titleFacile synthesis of new, highly efficient SnO2/carbon nitride composite photocatalysts for the hydrogen evolution reactionen
dc.typeArticleen
dc.type.versionpublishedVersionen
dcterms.bibliographicCitation.doi10.1039/c5gc00021a
dcterms.bibliographicCitation.issue6
dcterms.bibliographicCitation.journaltitleGreen chemistryen
dcterms.bibliographicCitation.originalpublishernameRoyal Society of Chemistryde
dcterms.bibliographicCitation.originalpublisherplaceCambridgede
dcterms.bibliographicCitation.pageend3361
dcterms.bibliographicCitation.pagestart3350
dcterms.bibliographicCitation.volume17
tub.accessrights.dnbfree
tub.affiliationFak. 2 Mathematik und Naturwissenschaften::Inst. Chemie::FG Metallorganische Chemie und Anorganische Materialiende
tub.affiliation.facultyFak. 2 Mathematik und Naturwissenschaftende
tub.affiliation.groupFG Metallorganische Chemie und Anorganische Materialiende
tub.affiliation.instituteInst. Chemiede
tub.publisher.universityorinstitutionTechnische Universität Berlin

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