Green synthesis and optimization of nano-magnetite using Persicaria bistorta root extract and its application for rosewater distillation wastewater treatment

Azadi, Fatemeh; Karimi-Jashni, Ayoub; Zerafat, M. M.

doi:10.1016/j.ecoenv.2018.09.032

Cited by 42 publications

(7 citation statements)

References 50 publications

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“…Synthesis methods can be co-precipitation, obtaining microemulsions, sol-gel syntheses, and hydrothermal or solvothermal reactions [ 87 , 88 , 89 , 90 , 91 ]. The cheapest and easiest method of obtaining it is the co-precipitation of Fe 2+ /Fe 3+ ions (molar ratio 1:2) with sodium hydroxide or ammonia solution [ 92 , 93 , 94 ], followed by magnetic separation of the formed product [ 95 ].…”

Section: Industrial Ferrous Waste Sources As New-valuable Raw Materia...mentioning

confidence: 99%

Ferrous Industrial Wastes—Valuable Resources for Water and Wastewater Decontamination

Matei

Predescu

Șăulean

et al. 2022

IJERPH

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Ferrous waste by-products from the metallurgical industry have a high potential for valorization in the context of the circular economy, and can be converted to value-added products used in environmental remediation. This research reviews the latest data available in the literature with a focus on: (i) sources from which these types of iron-based wastes originate; (ii) the types of ferrous compounds that result from different industries; (iii) the different methods (with respect to the circular economy) used to convert them into products applied in water and wastewater decontamination; (iv) the harmful effects ferrous wastes can have on the environment and human health; and (v) the future perspectives for these types of waste.

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Section: Industrial Ferrous Waste Sources As New-valuable Raw Materia...mentioning

confidence: 99%

Ferrous Industrial Wastes—Valuable Resources for Water and Wastewater Decontamination

Matei

Predescu

Șăulean

et al. 2022

IJERPH

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“…Karade et al (2018) comprobaron que las NPs magnéticas en tiempos de síntesis prolongados (> 8 h) los tamaños de cristales aumentan de 7.5-12 nm, incrementando el tamaño conforme aumenta el tiempo de reacción, de aquí que se obtuvieran mayores propiedades magnéticas en aquellas NPs que tenían un tamaño superior a 7.5 nm, esto se comprueba por la teoría de Stoner Wohlfarth donde mencionan que al incrementar el tamaño de cristal se incrementan de la misma manera las propiedades magnéticas de las NPs. En otro estudio realizado por Azadi et al, (2018), sintetizaron NPs-𝐹𝑒 3 𝑂 4 utilizando extractos de la planta Persicaria bistorta como agente reductor y estabilizante y reportaron que al aumentar las concentraciones de 0.1-0.2 M, se genera la concentración mínima de saturación que propicia la precipitación de los núcleos permitiendo el crecimiento de estos, también se encontró que la magnetización de las nanopartículas de 𝐹𝑒 3 𝑂 4 aumenta, al incrementar la concentración de 𝐹𝑒 3 Cl 2 de 0.1-0.2 M, En consecuencia, el aumento de las sales de hierro 𝐹𝑒 3 Cl 2 , induce a un incremento del tamaño de los cristales presentes en la síntesis, lo que da como resultado una mejora en la variable de la magnetización.…”

Section: Efecto Del Ph En La Síntesis De Nps-fe 3 Ounclassified

Síntesis verde de nanopartículas de magnetita (NPs-Fe3O4): factores y limitaciones

Valenzuela-Amaro

Vázquez-Ortega

Zazueta-Álvarez³

et al. 2022

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La nanotecnología es considerada como la revolución industrial del siglo XXI, por esto la obtención y aplicación de nanopartículas (NPs) es de vital interés para muchos rubros de la ciencia e industria. El uso de las NPs-Fe3O4 obtenidas por síntesis verde se extiende desde la cosmética, medicina, remediación ambiental, eléctrica y electrónica, debido a sus características térmicas, ópticas y magnéticas, sin mencionar el bajo costo de producción. En esta revisión se analizan los factores con mayor efecto durante la síntesis de NPs-Fe3O4 como lo son el pH, la temperatura, el tiempo, la cantidad de precursores metálicos y cantidad de metabolitos secundarios; variables que afectan de manera directa el tamaño, forma y morfología de las NPs-Fe3O4.

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“…HA concentrations were determined by using a DR-5,000 UV-Vis spectrophotometer (Hach, US) at a wavelength of 254 nm. The removal rate and adsorption capacity of HA were calculated according to Equations ( 1) and (2), respectively (Azadi et al 2018a(Azadi et al , 2018b.…”

Section: Ha Adsorption Experimentsmentioning

confidence: 99%

Investigating the role of the morphology of the Zn-Al LDH on the adsorption of humic acid from aqueous solutions

Davoudli

Saadat

Rahsepar

et al. 2021

Water Science and Technology

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Flake Zn-Al layered double hydroxides (FLDHs) and microspheres of LDH (MLDHs) were fabricated with a simple hydrothermal method to investigate the role of the morphology of Zn-Al LDH for the humic acid (HA) adsorption from synthetic solutions and natural water. The effect of process variables i.e. contact time, initial concentration of HA, pH, and competitive ions on the adsorption was investigated. HA removal mechanism was also studied. The two adsorbents exhibited different adsorption behaviors for HA in the presence and absence of background ions, which may be highly correlated with the various adsorption mechanisms involved. Comparison of the HA removal capacity of these two adsorbents implies the superior adsorption capability of FLDH for removal of HA from synthetic solutions (9.5 mg/g), while the adsorption capacity of MLDH was higher for natural organic matters present in natural water samples containing co-existing ions (8.9 mg/g). The pseudo-second-order kinetics model and Longmuir isotherm model could adequately interpret the HA adsorption process for the studied adsorbents. Both LDHs exhibited good regeneration and recycling abilities.

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Green synthesis and optimization of nano-magnetite using Persicaria bistorta root extract and its application for rosewater distillation wastewater treatment

Cited by 42 publications

References 50 publications

Ferrous Industrial Wastes—Valuable Resources for Water and Wastewater Decontamination

Ferrous Industrial Wastes—Valuable Resources for Water and Wastewater Decontamination

Síntesis verde de nanopartículas de magnetita (NPs-Fe3O4): factores y limitaciones

Investigating the role of the morphology of the Zn-Al LDH on the adsorption of humic acid from aqueous solutions

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