Iron-based nanoparticles in wastewater treatment: A review on synthesis methods, applications, and removal mechanisms

Aragaw, Tadele Assefa; Bogale, Fekadu Mazengiaw; Aragaw, Belete Asefa

doi:10.1016/j.jscs.2021.101280

Cited by 178 publications

(58 citation statements)

References 180 publications

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“…The specific size of nanostructured materials, such as nanoparticles, can change their magnetic, conductive, chemical and electronic properties [181,183,184]. Particularly, due to the unique physical and chemical properties of metal oxide nanoparticles, a wide range of applications has been investigated in materials chemistry, medicine, agriculture, information technology, the biomedical field, optics, electronics, catalysis, environmental fields, energy applications [185][186][187][188][189] and in the treatment of water and effluents, among others [190][191][192][193]. Increased surface area in nanostructured metal oxides leads to increased reactivity [194].…”

Section: Metallic Nanoparticles and Nanostructured Metal Oxidesmentioning

confidence: 99%

Conversion of Plastic Waste into Supports for Nanostructured Heterogeneous Catalysts: Application in Environmental Remediation

et al. 2021

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Plastics are ubiquitous in our society and are used in many industries, such as packaging, electronics, the automotive industry, and medical and health sectors, and plastic waste is among the types of waste of higher environmental concern. The increase in the amount of plastic waste produced daily has increased environmental problems, such as pollution by micro-plastics, contamination of the food chain, biodiversity degradation and economic losses. The selective and efficient conversion of plastic waste for applications in environmental remediation, such as by obtaining composites, is a strategy of the scientific community for the recovery of plastic waste. The development of polymeric supports for efficient, sustainable, and low-cost heterogeneous catalysts for the treatment of organic/inorganic contaminants is highly desirable yet still a great challenge; this will be the main focus of this work. Common commercial polymers, like polystyrene, polypropylene, polyethylene therephthalate, polyethylene and polyvinyl chloride, are addressed herein, as are their main physicochemical properties, such as molecular mass, degree of crystallinity and others. Additionally, we discuss the environmental and health risks of plastic debris and the main recycling technologies as well as their issues and environmental impact. The use of nanomaterials raises concerns about toxicity and reinforces the need to apply supports; this means that the recycling of plastics in this way may tackle two issues. Finally, we dissert about the advances in turning plastic waste into support for nanocatalysts for environmental remediation, mainly metal and metal oxide nanoparticles.

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Section: Metallic Nanoparticles and Nanostructured Metal Oxidesmentioning

confidence: 99%

Conversion of Plastic Waste into Supports for Nanostructured Heterogeneous Catalysts: Application in Environmental Remediation

et al. 2021

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“…In addition to the adsorption product of the electrostatic interaction of the pollutant and the magnetic nanoparticles, products of the availability on the surface of the nanomaterial, other removal mechanisms have been presented, such as chemical diffusion between adsorbent and adsorbate, surface precipitation, redox reactions, and ion exchange. In addition to removing inorganic contaminants, iron oxides can act as flocculants for the removal of colloidal organic substances in suspension [71]. We can mention the phytoremediation process, where a study tried to improve from the fusion of nanotechnology and photocatalytic degradation techniques to decontaminate soils.…”

Section: Magnetization Measurements (Spion)mentioning

confidence: 99%

Influence of the Alcoholic/Ethanolic Extract of Mangifera indica Residues on the Green Synthesis of FeO Nanoparticles and Their Application for the Remediation of Agricultural Soils

et al. 2021

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The green synthesis of iron oxide nanoparticles (FeO NP) has been investigated using the extract in absolute ethanolic and alcoholic solvents 96% from the peel of the mango fruit (Mangifera indica), thus evaluating the influence of the type of solvent on the extraction of reducing metabolites. A broad approach to characterization initially controlled by UV-vis spectrophotometry has been directed, the formation mechanism was evaluated by Fourier transform infrared spectroscopy (FTIR), the magnetic properties by characterization by Physical Property Measurement System (PPSM), in addition to a large number of techniques such as X-ray energy dispersive spectroscopy (EDS), X-ray diffraction (DRX), transmission electron microscopy (TEM/STEM), electron energy loss spectroscopy (EELS), and Z potential to confirm the formation of FeO NP. The results suggest better characteristics for FeO NP synthesized using 96% alcoholic solvent extract. The successful synthesis was directly proven in the removal of metals (Cr-VI, Cd, and Pb) as a potential alternative in the remediation of agricultural soils.

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“…Iron-based nanoparticles of various types are materials of interest in the role of catalysts or adsorbents in water and wastewater treatment (Aragaw et al, 2021).…”

Section: Introductionmentioning

confidence: 99%

Combined Action of Adsorption and Catalytic Oxidation in Aluminum Dye Removal by Groundwater Treatment Waste

Sodaitienė

Kaušpėdienė

Gefenienė

et al. 2022

Journal of Environmental Engineering and Landscape Management

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The performance of groundwater treatment waste (GWTW) as an adsorbent and catalyst in the decoloration of aluminum dye Sanodure green LWN (SG) solution was investigated. The raw GWTW was more suitable for dye removal than calcined at 800 °C temperature. The catalytic activity of GWTW in Fenton-like reactions in sunlight increases with decreasing pH from 5.5 to 2.5 and increasing temperature from 20 to 60 °C. The rate of 70% decoloration in the first 5 min and 92% after 50 min of 100 mg/L SG dye solution was reached at 50 °C and pH 3. Kinetics of the SG dye color removal fitted well with the double exponential and two-stage pseudo-first-order kinetic models. The activation energy of the first stage of the SG dye degradation reaction is 30.45 kJ/mol. GWTW could be re-used for the pre-treatment of dye-contaminated wastewater before entering the wastewater treatment plant.

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Iron-based nanoparticles in wastewater treatment: A review on synthesis methods, applications, and removal mechanisms

Cited by 178 publications

References 180 publications

Conversion of Plastic Waste into Supports for Nanostructured Heterogeneous Catalysts: Application in Environmental Remediation

Conversion of Plastic Waste into Supports for Nanostructured Heterogeneous Catalysts: Application in Environmental Remediation

Influence of the Alcoholic/Ethanolic Extract of Mangifera indica Residues on the Green Synthesis of FeO Nanoparticles and Their Application for the Remediation of Agricultural Soils

Combined Action of Adsorption and Catalytic Oxidation in Aluminum Dye Removal by Groundwater Treatment Waste

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