Enhanced adsorption of arsenate by spinel zinc ferrite nano particles: Effect of zinc content and site occupation

Wu, Can; Xu, Yan; Xu, Si; Tu, Jingwei; Tian, Chen; Lin, Zhang

doi:10.1016/j.jes.2018.09.010

Cited by 23 publications

(4 citation statements)

References 20 publications

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“…For example, ferrite is a magnetic nanoparticle characterized by a spinel structure with the general formula of MFe 2 O 4 , where M and Fe are metal cations located at the tetrahedral and octahedral sites [ 4 ]. Zinc ferrite (ZnFe 2 O 4 ) is an important compound widely used in various industrial applications, such as gas sensors [ 5 ], batteries [ 6 ], catalysts [ 7 , 8 ], and adsorbents [ 9 , 10 ].…”

Section: Introductionmentioning

confidence: 99%

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

RIYANTI¹,

PURWANINGRUM²,

YULIASARI³

et al. 2022

Turkish Journal of Chemistry

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The synthesis of ZnFe 2 O 4 nanoparticles was performed using the solution combustion method with three types of fuel, namely urea, glycine, and ethylenediamine tetra-acetic acid (EDTA) with precursors (Zn(NO 3 ) 2 .6H 2 O and Fe(NO 3 ) 3 .9H 2 O. The combustion process was conducted in an open space at 300 °C for ± 1 h, resulting in a brownish-black ZnFe 2 O 4 . Meanwhile, the fuel type used in the process affects the physicochemical properties of ZnFe 2 O 4 . XRD analysis showed that ZnFe 2 O 4 synthesized using urea, glycine, and EDTA had spinel structures with crystal sizes of 10.19, 20.34, and 27.21 nm, respectively. The FTIR spectra of ZnFe 2 O 4 synthesized using the three fuel types had Zn-O and Fe-O stretching vibrations. Furthermore, the morphology of ZnFe 2 O 4 synthesized using urea was more homogeneous than glycine and EDTA. The saturation magnetization of ZnFe 2 O 4 synthesized using EDTA was 54.63 emu/g compared to glycine and urea, 50.93 and 44.73 emu/g, respectively. Finally, the surface area of synthesized ZnFe 2 O 4 using urea, glycine, and EDTA were 116.4, 100.6, and 94.2 m 2 /g, respectively.

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Section: Introductionmentioning

confidence: 99%

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

RIYANTI¹,

PURWANINGRUM²,

YULIASARI³

et al. 2022

Turkish Journal of Chemistry

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“…hydroxyl groups) and by changing electronegativity of synthesized adsorbents [9]. Several metal oxides doped with transition metal atoms, such as Cu doped Fe 3 O 4 [9], zinc ferrite spinel (Zn x Fe 3-x O 4 ) [12] and Ce doped TiO 2 [13] have been well explored. Manganese (Mn), as a typical transition metal with more variable valence states than Cu, Zn and Ce, is hypothesized to accelerate electron transfer between As, O and Mn and to act as adsorption sites for arsenate by forming the Mn-O-As complex [14,15].…”

Section: Introductionmentioning

confidence: 99%

Superior arsenate adsorption and comprehensive investigation of adsorption mechanism on novel Mn-doped La2O2CO3 composites

Lyu

et al. 2020

Chemical Engineering Journal

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Mn-doped La 2 O 2 CO 3 (MnL) exhibited superior arsenate capture capacity of 555.6 mg/g.• The residual of As(V) was well below the permissive value for drinking water.• Doping with Mn atoms enhanced adsorption sites and reduced adsorption energy.• Surface complex and anion exchange dominated As(V) removal at low As (V)/MnL ratios.• Forming LaAsO 4 precipitates contributed greatly at high As(V)/MnL ratios.

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“…endothermic nature). used for synthesizing the spinel ferrites such as the sol-gel [256], oil-in-water microemulsion reaction method [257], sonochemical approach [258], hydrothermal method [259], surfactantassisted coprecipitation method [260], and micro-emulsion method [261]. The spinel ferrites have an interesting bandgap (as shown in Table 1) which makes them an excellent choice in enhancing the photodegradation efficiency and heavy metals removal applications illustrated in Tables 2&3.…”

Section: Maghemite (γ-Fe2o3)mentioning

confidence: 99%

Insight on water remediation application using magnetic nanomaterials and biosorbents

Maksoud

Elgarahy

Farrell

et al. 2020

Coordination Chemistry Reviews

234

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Adsorption to date is the most effective and utilized technology globally to remove several pollutants in wastewater. In this approach, many adsorbents have been synthesized, tested and used for the elimination and separation of the contaminants such as radionuclides, heavy metals, dyes and pharmaceutical compounds both at lab and industrial scale. However, there are many challenges to adsorption processes such as reducing the high cost, through means of separation of suspending adsorbents to be used again, as well as the ease to synthesize. Two methods that have shown promising results and gained significant interest is that of magnetic nanomaterials and biosorbents due to their effective, safe, eco-friendly, low cost and low-energy intensive material properties. Magnetic nanomaterials act as efficient adsorbents due to their ease of removal of contaminants from wastewater using an applied magnetic field but also their advantageous surface charge and redox activity characteristics. On the other hand, biosorbents have a synergistic effect with their efficient adsorption capacity to remove contaminants, high abundance and participation in waste minimization, helping alleviate ecological and environmental problems. This review highlights, discusses and reports on the state-of-the-art of these two promising routes to adsorption and provides indications as to what are the optimum materials for utilization and insight into their efficiency, reusability and practicality for the removal of pollutants from wastewater streams. Some of the main material focuses are zero-valent iron, iron oxides, spinel ferrites, natural and waste-based biosorbents.

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Enhanced adsorption of arsenate by spinel zinc ferrite nano particles: Effect of zinc content and site occupation

Cited by 23 publications

References 20 publications

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

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

Superior arsenate adsorption and comprehensive investigation of adsorption mechanism on novel Mn-doped La2O2CO3 composites

Insight on water remediation application using magnetic nanomaterials and biosorbents

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