Zinc Ferrite Nanoparticles via Coprecipitation Modified Method: Glycerol as Structure Directing and Stabilizing Agent

Abstract

Coprecipitation is one of the most practical methods used to synthesize ferrite nanoparticles. Fine characteristics of these materials can be improved by means of a series of modifications in the synthesis method. In this paper we present a study of influence of glycerol as structure directing and stabilizing agent in the synthesis of zinc ferrite nanoparticle, exploring its chelating capacity and oxidation. The studied materials include two series of zinc ferrite samples and its precursors obtained with or without glycerol throughout different stages during the synthesis process. The structural and morphological characteristics were evaluated by means of different techniques such as X-ray diffraction, Fourier transformed infrared spectroscopy, scanning and transmission electron microscopy and thermal analysis. The oxidation of glycerol was determined by high-performance liquid chromatograph. The obtained results demonstrate that zinc ferrite crystals synthesized in the presence of glycerol are initially bigger than those synthesized in absence of it, but according to the oxidation process they tend to decrease giving rise to intermediate phases. Interestingly, these samples grow back during more advanced stages and become structurally better organized, compared to the series of samples produced in absence of glycerol. These results indicate that glycerol is capable to modify the synthesis route of zinc ferrite nanoparticles via coprecipitation, acting directly over the size and morphology of the crystals.

The effect of fuel on the physiochemical properties of ZnFe2O4 synthesized by solution combustion method

“…The synthesis method used influences the properties of ferrite compounds, including the size, shape, morphology, surface area, and magnetic properties [ 11 ]. Several methods of synthesizing ZnFe 2 O 4 have been reported, including ball milling [ 12 ], coprecipitation [ 13 , 14 ], sol-gel [ 15 ], hydrothermal [ 16 ], and solution combustion [ 17 ]. Furthermore, this method has disadvantages, such as the formation of unwanted phases, complexity, and high cost.…”

Effect of manganese doping on the structural, mechanical, optical, and magnetic properties of zinc ferrite nanoparticles

“…Figure 6 shows the FTIR spectral analysis for -Zn Mn Fe O x x 1 2 4 NPs (x=0.00, 0.03, 0.6, 0.10) in the wavenumber ranges from 400 cm −1 to 1000 cm −1 . The two major absorption bands attributed by Waldron for metal-oxygen stretching vibration at tetrahedral complexes is u , T it ranges from 529-522 cm −1 and for the octahedral complexes is u , O it ranges from 412-434 cm −1 , which confirmed the existence of spinel ferrite system [37,48]. The behaviour of u T and u O with doping of Mn 2+ shows no monotonic trend.…”

“…of Mn 2+ in zinc nanoferrites induces a small shift in the distribution of cations and degree of occupation of Fe 3+ or Mn 2+ in the sub-lattices at A-site and B-site [37,48].…”

A Facile Fabrication of ZnFe2O4/Sepiolite Composite with Excellent Photocatalytic Performance on the Removal of Tetracycline Hydrochloride

“…Zinc ferrite (ZnFe 2 O 4 ), a typical spinel material, which possesses an AB 2 O 4 structure with Zn 2+ ions occupy tetrahedral A and Fe 3+ ions occupy octahedral B site in a facecentered cubic unit cell (Lima et al, 2018). Zinc ferrite is a promising semiconductor photocatalytic material due to its excellent photo-response in the visible light region, considerable chemical stability and easy recycling performance (Casbeer et al, 2012;Tsay et al, 2019;Borade et al, 2020;Hu et al, 2020).…”