uu.seUppsala University Publications
Change search
ReferencesLink to record
Permanent link

Direct link
Magnetically separable mesoporous Fe3O4/silica catalysts with very low Fe3O4 content
Univ Alicante, Dept Inorgan Chem, Mol Nanotechnol Lab, Carretera San Vicente S-N, E-03690 Alicante, Spain..
Univ Alicante, Dept Inorgan Chem, Mol Nanotechnol Lab, Carretera San Vicente S-N, E-03690 Alicante, Spain..
Univ Alicante, Dept Inorgan Chem, Mol Nanotechnol Lab, Carretera San Vicente S-N, E-03690 Alicante, Spain..
Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Solid State Physics.
Show others and affiliations
2016 (English)In: Journal of Solid State Chemistry, ISSN 0022-4596, E-ISSN 1095-726X, Vol. 237, 138-143 p.Article in journal (Refereed) PublishedText
Abstract [en]

Two magnetically separable Fe3O4/SiO2 (aerogel and MSU-X) composites with very low Fe3O4 content (< 1 wt%) have been successfully prepared at room temperature by co-condensation of MPTES-functionalized Fe3O4 nanoparticles (NPs) with a silicon alkoxide. This procedure yields a homogeneous incorporation of the Fe3O4 NPs on silica supports, leading to magnetic composites that can be easily recovered using an external magnetic field, despite their very low Fe3O4 NPs content (ca. 1 wt%). These novel hybrid Fe3O4/SiO2 materials have been tested for the oxidation reaction of 3,3',5,5'-tetramethylbenzidine (TMB) with hydrogen peroxide showing an enhancement of the stability of the NPs in the Fe3O4/silica aerogel as compared to the Fe3O4 NPs alone, even after five catalytic cycles, no leaching or agglomeration of the Fe3O4/SiO2 systems. 

Place, publisher, year, edition, pages
2016. Vol. 237, 138-143 p.
Keyword [en]
Magnetic materials, Porous materials, Silica, Magnetite nanoparticles, Peroxidase-like activity
National Category
Chemical Sciences Physical Sciences Engineering and Technology
Identifiers
URN: urn:nbn:se:uu:diva-294650DOI: 10.1016/j.jssc.2015.12.026ISI: 000373661100020OAI: oai:DiVA.org:uu-294650DiVA: diva2:932658
Funder
Swedish Research Council
Available from: 2016-06-02 Created: 2016-05-26 Last updated: 2016-06-14Bibliographically approved

Open Access in DiVA

No full text

Other links

Publisher's full text

Search in DiVA

By author/editor
Svedlindh, Peter
By organisation
Solid State Physics
In the same journal
Journal of Solid State Chemistry
Chemical SciencesPhysical SciencesEngineering and Technology

Search outside of DiVA

GoogleGoogle Scholar
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

Altmetric score

Total: 123 hits
ReferencesLink to record
Permanent link

Direct link