Facile synthesis and properties of ZnFe2O4 and ZnFe2O4/polypyrrole core-shell nanoparticles

Li, Yongbo; Yi, Ran; Yan, Aiguo; Deng, Lianwen; Zhou, Kechao; Liu, Xiaohe

doi:10.1016/j.solidstatesciences.2009.04.014

Cited by 153 publications

(68 citation statements)

References 27 publications

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“…Five major peaks were observed: the observed vibration at 548 cm À 1 can be assigned to metal oxygen stretching vibration (Fe-O modes), vibration bands at 3560 cm À 1 and 1720 cm À 1 corresponds to the O-H stretching and O-H bending vibration, respectively. The peak at wave number 818 cm À 1 can be assigned to the bending vibration of C-O-Ga bonds and at 1254 cm À 1 may be due to the C-C bond [19][20][21].…”

Section: Resultsmentioning

confidence: 99%

Nanocrystalline gallium ferrite: A novel material for sensing very low concentration of alcohol vapour

Sen

Chakraborty

Rana

et al. 2015

Ceramics International

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Section: Resultsmentioning

confidence: 99%

Nanocrystalline gallium ferrite: A novel material for sensing very low concentration of alcohol vapour

Sen

Chakraborty

Rana

et al. 2015

Ceramics International

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“…This phenomenon causes to form metal soaps as the passive layer 26 . As a prominent member of ferrite pigments zinc ferrite (ZnFe 2 O 4 ) has attracted significant research interest because of its nontoxic nature and unique physical, mechanical and corrosion inhibition properties [27][28][29][30] . Meanwhile, several limitations and defects have been reported for conventional micron sized pigments 31 .…”

Section: Introductionmentioning

confidence: 99%

Potency of ZnFe2O4 Nanoparticles as Corrosion Inhibitor for Stainless Steel; the Pigment Extract Study

et al. 2017

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The corrosion inhibition of nanoparticulates zinc ferrite (NZF) pigment was studied. The steel samples were immersed in the NZF pigment extract in 3.5 wt. % NaCl. Electrochemical tests such as electrochemical impedance spectroscopy (EIS) and polarization as well as surface analysis were employed to evaluate the effect of NZF on the steel corrosion. The concentration of Zn and Fe in the pigment extracts before and after immersion of mild steel samples was evaluated by inductively coupled plasma-optical emission spectrometry (ICP-OES). EIS results in total agreement with results of polarization test demonstrated superiority of NZF as an anticorrosion pigment. In the case of samples exposed to NZF extract, the higher resistance and lower double layer capacitance extracted from impedance spectra as well as lower current density from polarization results might be attributed to precipitation of an inhibitive layer on the surface. This was also supported by SEM/EDS and ICP-OES results.

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“…[1][2][3] Among all the properties they possess, ferrites offer the advantage of having a band gap capable of absorbing ultra violet and visible light. Ferrites with spinel-like structure prepared through solid state reaction have been used for photocatalytic hydrogen generation.…”

Section: Introductionmentioning

confidence: 99%

Mixed Metal Oxides of the Type CoxZn1–xFe2O4 as Photocatalysts for Malachite Green Degradation Under UV Light Irradiation

Tzvetkov¹,

Milanova²,

Cherkezova‐Zheleva

et al. 2017

ACSi

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A combination of thermal and mechanical (high energy ball milling) treatment was applied in an attempt to obtain polycrystalline mixed metal binary and ternary oxides of the type Co x Zn 1-x Fe 2 O 4 (x = 0; 0.25; 0.5; 0.75; 1). The synthetic procedure used successfully produced single-phased, homogeneous ZnFe 2 O 4 , CoFe 2 O 4 , and Co 0.75 Zn 0.25 Fe 2 O 4 , as well as mixed oxides, whose composition depended both on the duration of the high energy ball milling and the ratio Zn(II)/Co(II). The formation of spinel-like structures was proved by XRD, Mössbauer spectroscopy and Raman spectroscopy. For the characterization of the samples low-temperature N 2 adsorption, UV/Vis spectroscopy and transmission electron microscopy were applied. The energy band gap of the samples was calculated, suggesting they are promising photocatalysts. The decomposition of the Malachite Green in model water solutions under UV-light irradiation was successfully achieved in the presence of the samples as photocatalysts. The highest rate constant was obtained for the sample synthesized at longer milling time in combination with higher Zn(II)/Co(II) ratio. The photocatalytic activity of the ternary mixed oxides was compared with the pure hematite, α-Fe 2 O 3 , and the binary ZnFe 2 O 4 and CoFe 2 O 4 ferrites with spinel structure that were treated in the same way. A synergetic effect of α-Fe 2 O 3 and the spinel-like structure on the photocatalytic properties of ternary mixed metal oxides was detected.

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Facile synthesis and properties of ZnFe2O4 and ZnFe2O4/polypyrrole core-shell nanoparticles

Cited by 153 publications

References 27 publications

Nanocrystalline gallium ferrite: A novel material for sensing very low concentration of alcohol vapour

Nanocrystalline gallium ferrite: A novel material for sensing very low concentration of alcohol vapour

Potency of ZnFe2O4 Nanoparticles as Corrosion Inhibitor for Stainless Steel; the Pigment Extract Study

Mixed Metal Oxides of the Type CoxZn1–xFe2O4 as Photocatalysts for Malachite Green Degradation Under UV Light Irradiation

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