Data on the removal of fluoride from aqueous solutions using synthesized P/γ-Fe2O3 nanoparticles: A novel adsorbent

Ahmadi, Shahin; Rahdar, Somayeh; Igwegbe, Chinenye Adaobi; Rahdar, Abbas; Shafighi, Nahid; Sadeghfar, Fardin

doi:10.1016/j.mex.2018.12.009

Cited by 28 publications

(7 citation statements)

References 13 publications

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“…The results presented in this study are in agreement with previously reported studies for F − adsorption using MOF-801 showing that increasing the adsorbate dose from 0.3 to 1.5 g resulted in an increased efficiency, primarily due to an increase in the number of active sites [24]. These results are further supported by a study by [46] which showed that with an increase in adsorbent dosage above 0.02 g, adsorption was decreased. The present study reports decreased F − adsorption with an increase in adsorbent dose, mainly due to the blockage of active sites on the adsorbent surface [47].…”

Section: Screening and Optimization Studiessupporting

confidence: 92%

Iron Oxide (Fe3O4)-Supported SiO2 Magnetic Nanocomposites for Efficient Adsorption of Fluoride from Drinking Water: Synthesis, Characterization, and Adsorption Isotherm Analysis

Sarwar

Wang

Khan

et al. 2021

Water

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This research work reports the magnetic adsorption of fluoride from drinking water through silica-coated Fe3O4 nanoparticles. Chemical precipitation and wet impregnation methods were employed to synthesize the magnetic nanomaterials. Moreover, the synthesized nanomaterials were characterized for physicochemical properties through scanning electron microscopy, Fourier-transform infrared spectroscopy, and X-ray powder diffraction. Screening studies were conducted to select the best iron oxide loading (0.0–1.5 wt%) and calcination temperature (300–500 °C). The best selected nanomaterial (0.5Fe-Si-500) showed a homogenous FeO distribution with a 23.79 nm crystallite size. Moreover, the optimized reaction parameters were: 10 min of contact time, 0.03 g L−1 adsorbent dose, and 10 mg L−1 fluoride (F−) concentration. Adsorption data were fitted to the Langmuir and Freundlich isotherm models. The Qm and KF (the maximum adsorption capacities) values were 5.5991 mg g−1 and 1.869 L g−1 respectively. Furthermore, accelerated adsorption with shorter contact times and high adsorption capacity at working pH was among the outcomes of this research work.

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Section: Screening and Optimization Studiessupporting

confidence: 92%

Iron Oxide (Fe3O4)-Supported SiO2 Magnetic Nanocomposites for Efficient Adsorption of Fluoride from Drinking Water: Synthesis, Characterization, and Adsorption Isotherm Analysis

Sarwar

Wang

Khan

et al. 2021

Water

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“…Adsorption isotherm models were explored in order to reveal the governing principle behind the binding of adsorbate to adsorbent at optimum operational parameters [17] , [18] . In this study, equilibrium data were fitted to two most common isotherm models, Langmuir and Freundlich as shown in Eq.…”

Section: Batch Adsorption Processmentioning

confidence: 99%

Bottom-up approach synthesis of core-shell nanoscale zerovalent iron (CS-nZVI): Physicochemical and spectroscopic characterization with Cu(II) ions adsorption application

et al. 2020

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“…e maximum adsorption of fluoride by using P/c Fe 2 O 3 NPs was found to be 99% within 30 min [44]. One study showed that the adsorption capacity of the porous MgO nanoplates was more than 97% in 20 min [45].…”

Section: Nanoparticles (Nps)mentioning

confidence: 99%

Comparison of Water Defluoridation Using Different Techniques

Fadaei

2021

International Journal of Chemical Engineering

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Fluoride pollution in subsurface water is a significant problem for different nations across the world because of the intake of excessive fluoride caused by the drinking of the contaminated subsurface. Water pollution by flouride can be attributed to the natural and human-made agents. Increased levels of fluoride in drinking water may result in the irretrievable demineralization of bone and tooth tissues, a situation called fluorosis, and other disorders. There has long been a need for fluoride removal from drinking water to make it safe for human use. Among the various fluoride removal methods, adsorption is the method most popularly used due to its cheap cost, ease of utilization, and being a scalable and simple physical technique. According to the findings of this study, the highest concentration of fluoride (0.1–15.0 mg/L) was found in Sweden and the lowest (0.03–1.14 mg/L) in Italy. We collected the values of adsorption capacities and fluoride removal efficiencies of various types of adsorbents from valuable released data accessible in the literature and exhibited tables. There is still a need to find the actual possibility of using biosorbents and adsorbents on a commercial scale and to define the reusability of adsorbents to decrease price and the waste generated from the adsorption method. This article reviews the currently available methods and approaches to fluoride removal of water.

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Data on the removal of fluoride from aqueous solutions using synthesized P/γ-Fe2O3 nanoparticles: A novel adsorbent

Abstract: Graphical abstract

Cited by 28 publications

References 13 publications

Iron Oxide (Fe3O4)-Supported SiO2 Magnetic Nanocomposites for Efficient Adsorption of Fluoride from Drinking Water: Synthesis, Characterization, and Adsorption Isotherm Analysis

Iron Oxide (Fe3O4)-Supported SiO2 Magnetic Nanocomposites for Efficient Adsorption of Fluoride from Drinking Water: Synthesis, Characterization, and Adsorption Isotherm Analysis

Bottom-up approach synthesis of core-shell nanoscale zerovalent iron (CS-nZVI): Physicochemical and spectroscopic characterization with Cu(II) ions adsorption application

Comparison of Water Defluoridation Using Different Techniques

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