Novel magnetic nanocomposites containing quaternary ferrites systems Co^sub 0.5^Zn^sub 0.25^M^sub 0.25^Fe^sub 2^O^sub 4^ (M?=?Ni, Cu, Mn, Mg) and TiO^sub 2^-anatase phase as photocatalysts for wastewater remediation under solar light irradiation

In this study smart-removal magnetic nanocomposites are developed in an attempt to decrease the band gap energy of the catalyst and to enable separation of the catalyst from the wastewater after the process. Ferrite magnetic nanoparticles Co0.5Zn0.25M0.25Fe2O4 (M = Ni, Cu, Mn, Mg) (MNPs) are obtaine...

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Bibliographic Details
Published in:Materials science & engineering. B, Solid-state materials for advanced technology Solid-state materials for advanced technology, 2018-04, Vol.230, p.1
Main Authors: Ciocarlan, Radu-G, Seftel, Elena M, Mertens, Myrjam, Pui, Aurel, Mazaj, Matjaz, Tusar, Natasa Novak, Cool, Pegie
Format: Article
Language:English
Subjects:
Anatase
Carboxymethyl cellulose
Catalysis
Catalysts
Copper
Coprecipitation
Dyes
Energy gap
Ferrites
Light irradiation
Magnesium
Magnetic properties
Manganese
Methylene blue
Nanocomposites
Nickel
Photocatalysis
Photocatalysts
Photodegradation
Sodium hydroxide
Titanium dioxide
Wastewater treatment
Water treatment
Zinc
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Summary:In this study smart-removal magnetic nanocomposites are developed in an attempt to decrease the band gap energy of the catalyst and to enable separation of the catalyst from the wastewater after the process. Ferrite magnetic nanoparticles Co0.5Zn0.25M0.25Fe2O4 (M = Ni, Cu, Mn, Mg) (MNPs) are obtained by the co-precipitation method using carboxymethyl cellulose (CMC) as surfactant and NaOH as precipitation agent. Further, the magnetic nanocomposites Co0.5Zn0.25M0.25Fe2O4-TiO2 (anatase) (MNPs-TiO2) are obtained by the TiO2 deposition onto the MNPs using Pluronic P123 as template and tetra butyl titanate (TBOT) as titanium source. This type of photocatalyst can be used under solar light irradiation because of the activation of TiO2 with MNPs in visible light range and can be very easily recovered due to their strong magnetic properties. The MNPs-TiO2 have proven to be very active for the degradation of different dyes, such as methyl orange and methylene blue, under solar light irradiation.
ISSN:0921-5107
1873-4944