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Manganese ferrite nanoparticles synthesized through a nanocasting route as a highly active Fenton catalyst

Paper ID Volume ID Publish Year Pages File Format Full-Text
52478 46875 2007 6 PDF Available
Title
Manganese ferrite nanoparticles synthesized through a nanocasting route as a highly active Fenton catalyst
Abstract

Spinel ferrite MnFe2O4 nanoparticles were synthesized by means of a nanocasting technique using a low-cost mesoporous silica gel as a hard template. The magnetic nanoparticles, of <10 nm diameter and with a surface area of around 100 m2/g, were tested as a heterogeneous Fenton catalyst for the decomposition of hydrogen peroxide under neutral and basic conditions. This catalyst shows a much higher activity than previous heterogeneous catalysts reported in the literature, which is mainly ascribed to its small particle size. Furthermore, the magnetic catalyst can be easily separated from the reaction medium by means of an external magnetic field. The effects of residual silica and the purity of the catalyst (hematite formation) on catalytic activity have been studied and correlated. The results obtained show this catalyst to be a suitable candidate for the removal of pollutants in wastewaters by means of the Fenton heterogeneous reaction.

Keywords
Hydrogen peroxide decomposition; Template method; Manganese ferrite spinel; Nanoparticle; Heterogeneous Fenton reaction
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Manganese ferrite nanoparticles synthesized through a nanocasting route as a highly active Fenton catalyst
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Publisher
Database: Elsevier - ScienceDirect
Journal: Catalysis Communications - Volume 8, Issue 12, December 2007, Pages 2037–2042
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
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