Pal, Shaili, Kumar, Sunil, Verma, Alkadevi, Kumar, Ajay, Ludwig, Tim, Frank, Michael, Mathur, Sanjay ORCID: 0000-0003-2765-2693, Prakash, Rajiv and Sinha, Indrajit
ORCID: 0000-0001-6520-8273
(2020).
Development of magnetically recyclable visible light photocatalysts for hydrogen peroxide production.
Mater. Sci. Semicond. Process, 112.
OXFORD:
ELSEVIER SCI LTD.
ISSN 1873-4081
Abstract
The development of magnetically recyclable photocatalysts for economic and green H2O2 synthesis from water and oxygen only is virtually unexplored. Magnetic recyclability makes possible cost-effective laboratory or industrial reuse of the catalyst. The present research shows that magnetically recyclable starch functionalized Fe3O4/Ag/Ag2O superparamagnetic nanocomposites are very good visible light photocatalysts for H2O2 formation. These nanocomposites were prepared by precipitating Ag/Ag2O fine-sized nanostructures on starch functionalized magnetite nanoparticles (SMNPs). HR-TEM, XRD, and XPS analysis results showed the formation of SMNPs dotted with fine-sized Ag/Ag2O nanostructures smaller than their quantum confinement regimes. A p-n heterojunction is formed between (n-type) starch functionalized magnetite and (p-type) Ag2O components. Enhanced charge separation and the presence of plasmonic Ag nanostructures on the SM component cause efficient oxygen reduction with high H2O2 formation rates.
Item Type: | Journal Article | ||||||||||||||||||||||||||||||||||||||||
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URN: | urn:nbn:de:hbz:38-330021 | ||||||||||||||||||||||||||||||||||||||||
DOI: | 10.1016/j.mssp.2020.105024 | ||||||||||||||||||||||||||||||||||||||||
Journal or Publication Title: | Mater. Sci. Semicond. Process | ||||||||||||||||||||||||||||||||||||||||
Volume: | 112 | ||||||||||||||||||||||||||||||||||||||||
Date: | 2020 | ||||||||||||||||||||||||||||||||||||||||
Publisher: | ELSEVIER SCI LTD | ||||||||||||||||||||||||||||||||||||||||
Place of Publication: | OXFORD | ||||||||||||||||||||||||||||||||||||||||
ISSN: | 1873-4081 | ||||||||||||||||||||||||||||||||||||||||
Language: | English | ||||||||||||||||||||||||||||||||||||||||
Faculty: | Faculty of Mathematics and Natural Sciences | ||||||||||||||||||||||||||||||||||||||||
Divisions: | Faculty of Mathematics and Natural Sciences > Department of Chemistry > Institute of Inorganic Chemistry | ||||||||||||||||||||||||||||||||||||||||
Subjects: | no entry | ||||||||||||||||||||||||||||||||||||||||
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Refereed: | Yes | ||||||||||||||||||||||||||||||||||||||||
URI: | http://kups.ub.uni-koeln.de/id/eprint/33002 |
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