Adsorption Characteristics of Victoria Blue on Low Cost Natural Sand and Its Removal From Aqueous Media

Kant, Arun; Datta, Monika

doi:10.17628/ecb.2014.3.752-759

Cited by 2 publications

(1 citation statement)

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“…In the presence of Cu 2+ , the percentage removal efficiency of RhB on MOF-5@GO nanocomposites decreases with an increase in the concentration of a metal ion, but in the case of Ni 2+ ion, the percentage removal of RhB on MOF-5@GO nanocomposites slightly decreases with increasing the concentration of a metal ion in aqueous solution. 55 In the presence of heavy metals, the adsorption capacity of dyes onto the MOF-5@GO surface decreases due to the preferential adsorption of these metal ions onto the active site of the MOF-5@GO nanocomposite shown in Figure 7b.…”

Section: Batch Extraction Study and Removal Of Rhbmentioning

confidence: 99%

Sustainable Synthesis of MOF-5@GO Nanocomposites for Efficient Removal of Rhodamine B from Water

Kumar

Masram

2021

ACS Omega

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Herein, a metal–organic framework (MOF-5) is synthesized by a solvothermal process and graphene oxide (GO) is prepared from the improved Hummer’s method. The synthesis of MOF-5@GO nanocomposites is one-pot process via a grinding method and employed for the removal of Rhodamine B (RhB) dye. The removal efficiency of RhB is found to be 60.64% (151.62 mg·g –1 ) at 500 ppm. About 98.88% of RhB is removed within 5 min of contact time and increased up to 99.68% up to 10 min. The removal rate of MOF-5@GO nanocomposites is much better than that of pristine MOF-5. Equilibrium adsorption capacity is determined by a series of different experimental conditions such as pH, time, and concentration of dye solution. Although the results also showed that dye removal on MOF-5@GO nanocomposites is well described by the Langmuir isotherm ( R 2 = 0.9703), the adsorption kinetics data reveals pseudo-second-order ( R 2 = 0.9908). The synthesized nanocomposite is efficient for removal of dye, cost-effective, and reusable. Additionally, stability and self-degradation studies of pure RhB are reported in aqueous solution for up to 120 days at different pH values (pH 1–12).

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Section: Batch Extraction Study and Removal Of Rhbmentioning

confidence: 99%

Sustainable Synthesis of MOF-5@GO Nanocomposites for Efficient Removal of Rhodamine B from Water

Kumar

Masram

2021

ACS Omega

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Synthesis and characterization of hexagonal boron nitride used for comparison of removal of anionic and cationic hazardous azo-dye: kinetics and equilibrium studies

Tarhan

2020

Turk J Chem

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The purpose of this study was to compare the adsorption behavior of cationic and anionic dyes onto a hexagonal boron nitride (hBN) nanostructure that was rich in a negative charge. Herein, the hBN nanostructure was synthesized using boric acid as a precursor material. The characteristic peaks of the hBN nanostructure were performed using Fourier transform infrared (FT-IR) and Raman spectroscopies. The morphology and the particle size of hBN nanostructure were determined by transmission electron microscopy (TEM) and scanning electron microscopy (SEM). During the studies, various essential adsorption parameters were investigated, such as the initial dye concentration, pH of the dye solution, adsorbent dose, and contact time. Under optimal conditions, the removal of 42.6% Metanil yellow (MY) and 90% Victoria blue B (VBB) from aqueous solution was performed using a 10-mg hBN nanostructure. Furthermore, the equilibrium studies showed that the Freundlich isotherm model fitted well for the removal of MY. However, the Langmuir isotherm model fitted well for the removal of VBB. Moreover, according to the results obtained from the kinetic studies, while the first-order kinetic model was suited for the adsorption of the MY, the second-order kinetic model was found to well fit for the adsorption of VBB.

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Adsorption Characteristics of Victoria Blue on Low Cost Natural Sand and Its Removal From Aqueous Media

Cited by 2 publications

References 0 publications

Sustainable Synthesis of MOF-5@GO Nanocomposites for Efficient Removal of Rhodamine B from Water

Sustainable Synthesis of MOF-5@GO Nanocomposites for Efficient Removal of Rhodamine B from Water

Synthesis and characterization of hexagonal boron nitride used for comparison of removal of anionic and cationic hazardous azo-dye: kinetics and equilibrium studies

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