Adsorption Analysis of Fluoride Removal Using Graphene Oxide/Eggshell Adsorbent

Nor, Norhusna Mohamad; Kamil, Nur Hidayahtul Nazrah; Mansor, Amirul Izan; Maarof, Hawaiah Imam

doi:10.22146/ijc.43481

Cited by 9 publications

(5 citation statements)

References 12 publications

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“…The ES membrane has functional groups such as hydroxyl, thiol, carboxyl, amino, and amide, so it has the potential to be used as an adsorbent to remove various organic and inorganic chemicals, especially those found in wastewater [6]. It has been reported a study of eggshell modified with graphene oxide (ES-GO) that was used to remove fluoride ions ( ) using adsorption method, and the results show that ES-GO has proven to be an effective adsorbent for removing [7]. Whang et al also reported that ES membranes composited with GO and gold nanoparticles (AuNPs) could be used to fabricate the Sunlight-Driven Photothermal Effect [8].…”

Section: Introductionmentioning

confidence: 99%

Eggshell-Graphene Oxide Layer as Membrane Filtration for Removal Methylene Blue in Waste Water

Maulida

Fauziah

Syakir

et al. 2022

J. Phys.: Conf. Ser.

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Eggshell (ES) membrane is a semipermeable membrane that is insoluble in water and has a high surface area. We modified ES membranes with graphene oxide (GO) using self-assembled technique and used it to remove dye pollutants such as methylene blue (MB) in water. The ES membranes were obtained from fresh eggs that have been removed from albumen and yolk, then immersed in 15% acetic acid for 30 minutes. The ES membranes were immersed in 0.5 mg/mL dispersed GO and ultrasonicated for 3 hours. The modified ES-GO membrane was then used to filter 5 mg/L MB solutions. Filtration of MB solution was performed by pouring the solution over the ES-GO membrane with a help of constant pressure of 45 psi. We found that the modified ES-GO membrane could filter MB up to 33.53% and reduce MB concentration from 4.91 mg/L to 3.53 mg/L. The result of membrane permeability is 2.488 x10−3 darcy and the flow rate of the filtration is relatively constant about 4 mL/s.

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Section: Introductionmentioning

confidence: 99%

Eggshell-Graphene Oxide Layer as Membrane Filtration for Removal Methylene Blue in Waste Water

Maulida

Fauziah

Syakir

et al. 2022

J. Phys.: Conf. Ser.

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“…GO was manufactured from low-cost materials, sugar, and river sand, which were impregnated with zironium (Zr) (ZIGCS) and used for the de-fluoridation of water [65]. Unmodified GO cannot be considered as an efficient adsorbent due to the considerable aggregation of graphene oxide nano-sheets in water, which causes a significant loss of its high adsorption potential.…”

Section: Graphene Oxide Anchored Sand (Zigcs) Functionalized By Zr(iv)mentioning

confidence: 99%

Recently Developed Adsorbing Materials for Fluoride Removal from Water and Fluoride Analytical Determination Techniques: A Review

et al. 2021

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In recent years, there has been an increase in public perception of the detrimental side-effects of fluoride to human health due to its effects on teeth and bones. Today, there is a plethora of techniques available for the removal of fluoride from drinking water. Among them, adsorption is a very prospective method because of its handy operation, cost efficiency, and high selectivity. Along with efforts to assist fluoride removal from drinking waters, extensive attention has been also paid to the accurate measurement of fluoride in water. Currently, the analytical methods that are used for fluoride determination can be classified into chromatographic methods (e.g., ionic chromatography), electrochemical methods (e.g., voltammetry, potentiometry, and polarography), spectroscopic methods (e.g., molecular absorption spectrometry), microfluidic analysis (e.g., flow injection analysis and sequential injection analysis), titration, and sensors. In this review article, we discuss the available techniques and the ongoing effort for achieving enhanced fluoride removal by applying novel adsorbents such as carbon-based materials (i.e., activated carbon, graphene oxide, and carbon nanotubes) and nanostructured materials, combining metals and their oxides or hydroxides as well as natural materials. Emphasis has been given to the use of lanthanum (La) in the modification of materials, both activated carbon and hybrid materials (i.e., La/Mg/Si-AC, La/MA, LaFeO3 NPs), and in the use of MgO nanostructures, which are found to exhibit an adsorption capacity of up to 29,131 mg g−1. The existing analytical methodologies and the current trends in analytical chemistry for fluoride determination in drinking water are also discussed.

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“…Additionally, Luo et al [45], in their study, combined the oxidizing ability of manganese dioxide, the large surface area of GO and the magnetic characteristics of Fe 3 O 4 , aiming at synthesizing a new adsorbent (Fe 3 O 4 -RGO-MnO 2 ) for As removal. On the other hand, GO/Al 2 O 3 , produced by GO and γ-Al 2 O 3 [46], Graphene Oxide-Aluminum Oxyhydroxide (GO-Al-O(OH)) [47], Graphene Oxide Anchored Sand (ZIGCS) functionalized by Zr(IV) [48] and Graphene Oxide/Eggshell (GO/ES) [49] are some of the adsorbents based on graphene oxide and have been used in the literature for the removal of fluoride from water [15]. Manganese oxides, such as manganese modified activated alumina, MAA [50], bentonitesmectite rich clay [50] and manganese dioxide with dispersion over disposed earthenware (DEW) [37], were also tested for fluoride removal.…”

Section: Introductionmentioning

confidence: 99%

Simultaneous Removal of As(III) and Fluoride Ions from Water Using Manganese Oxide Supported on Graphene Nanostructures (GO-MnO2)

et al. 2023

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In the present research, the use of manganese oxides supported on graphene nanostructures (GO-MnO2), which support the synergistic action of adsorption and oxidation, in the combined removal of arsenic and fluoride from drinking water was studied. The simultaneous occurrence of fluoride and arsenic in groundwater is one of the major environmental problems, occurring mainly in anhydrous regions of Latin America and the world. These pollutants cause significant health problems and are difficult to remove simultaneously from drinking water. The structure of GO-MnO2 was characterized by the application of FTIR, EDS and SEM techniques. The effects of the adsorbent’s dosage, the pH value, the contact time and the initial concentrations of As(III) and F ions (F−) were examined with respect to the removal of As(III) and F ions. According to the results, the presence of arsenic enhances fluoride removal with increasing arsenic concentrations, and the presence of fluoride enhances arsenic removal with increasing fluoride concentrations, mainly at a neutral pH value. The co-presence removal efficiencies were 89% (a residual concentration of 1.04 mg/L) for fluoride and about 97% (a residual concentration of 2.89 μg/L) for arsenic.

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Adsorption Analysis of Fluoride Removal Using Graphene Oxide/Eggshell Adsorbent

Cited by 9 publications

References 12 publications

Eggshell-Graphene Oxide Layer as Membrane Filtration for Removal Methylene Blue in Waste Water

Eggshell-Graphene Oxide Layer as Membrane Filtration for Removal Methylene Blue in Waste Water

Recently Developed Adsorbing Materials for Fluoride Removal from Water and Fluoride Analytical Determination Techniques: A Review

Simultaneous Removal of As(III) and Fluoride Ions from Water Using Manganese Oxide Supported on Graphene Nanostructures (GO-MnO2)

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