Synthesis and photocatalytic activity of nano-cobalt ferrite catalyst for the photo-degradation various dyes under simulated sunlight irradiation

Sun, Meijuan; Han, Xiulin; Chen, Shuguang

doi:10.1016/j.mssp.2018.12.005

Cited by 86 publications

(22 citation statements)

References 56 publications

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“…In addition, as a photocatalyst, ZnO has a wide bandgap range (3 -4 eV), which enables it to effectively absorb in UV light region and less in visible light 8 . ZnO's combination with ferrites demonstrated a synergistic effect to enhance the photocatalytic activity under UV and visible-light irradiations 9 .…”

Section: Introductionmentioning

confidence: 99%

Magnetic Particles Nanorod of ZnO/CuFe2O4 Prepared by Green Synthesized Approach: Structural, Optical and Magnetic Properties, and Photocatalytic Activity

et al. 2022

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In this study, magnetically separable ZnO/CuFe 2 O 4 nanorod particles were synthesized by the green synthesis approach, using rambutan peel extract (Nephelium lappaceum L.) as a capping agent. The samples were evaluated as photocatalyst for the degradation of Rhodamine B dye driven by solar light irradiation. The XRD patterns represented the specific peaks of ZnO and CuFe 2 O 4 in the ZnO/ CuFe 2 O 4 composite. SEM and TEM images showed the rod-like shape of the ZnO/CuFe 2 O 4 composite synthesized using 3 mL (ZCuE3N) of rambutan peel extract. ZCuE3N sample has an increase in photocatalytic activity up to 98.8% in the degradation of Rhodamine B under solar light irradiation for 2 h. Magnetic measurement by VSM revealed that ZnO/CuFe 2 O 4 composite was superparamagnetic. ZnO/CuFe 2 O 4 composites remained stable in an air atmosphere and exhibited promise as a reusable photocatalyst as it can be easily separated from the solution by an external magnetic field.

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Section: Introductionmentioning

confidence: 99%

Magnetic Particles Nanorod of ZnO/CuFe2O4 Prepared by Green Synthesized Approach: Structural, Optical and Magnetic Properties, and Photocatalytic Activity

et al. 2022

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“…The absorbance values of fabricated nanoferrites indicated that the absorbance ensued in the visible region necessary for the photo‐Fenton reaction. The band‐gap values of nanoferrites were estimated using Tauc’s relation () (Sun et al , 2019).

a h υ = A {()(, h υ - E_{g})}^{\frac{1}{2}}

…”

Section: Resultsmentioning

confidence: 99%

Visualizing the catalytic advancements in nickel ferrite via inclusion of bismuth for the removal of hazardous environmental pollutants

Kapoor

Goel

Singhal

2020

Water & Environment J

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The incorporation of bismuth into spinel nanoferrites has emerged as an interesting platform for amendment in structural characteristics, cation distribution and catalytic efficacy of nanoferrites. Bismuth has one of its kind properties to occupy both the octahedral and tetrahedral sites which enticed a significant role in evaluating the catalytic behavior of bismuth-doped nanoferrites. The present work explored the versatility of bismuth substituted nickel ferrite nanostructures as catalysts for the oxidative degradation of dyes and reduction of nitrophenols. The catalytic activity was found to increase up to the incorporation of 4% bismuth owing to the occupancy of catalytically active octahedral sites, whereas devastation was observed at higher concentrations due to accumulation of bismuth in tetrahedral sites. The observed trend of catalytic behavior was in full concordance with the saturation magnetisation, crystallite size, and band-gap. The recyclability studies indicated the applicability of bismuth substituted nanoferrites as potential catalysts for the mitigation of environmental pollutants.

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“…Meijuan et al, [262] synthesized a series of Co ferrite (CFO) via a microwave technique. XRD data revealed that the CFO NPs calcined at 500 ℃ has a high level of crystallization.…”

Section: Spinel Ferrites and Their Compositesmentioning

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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Synthesis and photocatalytic activity of nano-cobalt ferrite catalyst for the photo-degradation various dyes under simulated sunlight irradiation

Cited by 86 publications

References 56 publications

Magnetic Particles Nanorod of ZnO/CuFe2O4 Prepared by Green Synthesized Approach: Structural, Optical and Magnetic Properties, and Photocatalytic Activity

Magnetic Particles Nanorod of ZnO/CuFe2O4 Prepared by Green Synthesized Approach: Structural, Optical and Magnetic Properties, and Photocatalytic Activity

Visualizing the catalytic advancements in nickel ferrite via inclusion of bismuth for the removal of hazardous environmental pollutants

Insight on water remediation application using magnetic nanomaterials and biosorbents

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