Nickel sorption using Bioclastic Granules as a sorbent material: equilibrium, kinetic and characterization studies

Veneu, Diego Macedo; Yokoyama, Lídia; Cunha, Osvaldo Galvão Caldas da; Schneider, Cláudio Luiz; Monte, Marisa Bezerra de Mello

doi:10.1016/j.jmrt.2018.05.020

Cited by 14 publications

(8 citation statements)

References 63 publications

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“…Furthermore, in this study, the zeta potential measurements were carried out at neutral pH, at which the surface is neutral or slightly negative in charge that favors the metal ion adsorption process. As described in the literature, 27 the zeta potential values were positive in the pH range 2−4 due to the presence of Ca 2+ ions and negative in the pH range 5−10 due to CO 3 2− and HCO 3− ions. As seen in Figure S3, the obtained zeta potential value of ES changed from −3.21 mV to more positive values after adsorption of metal ions due to the electrostatic interactions.…”

supporting

confidence: 66%

“…The adsorption isotherm experiments were carried out with different initial concentrations of metal ions at room temperature and neutral pH. The equilibrium adsorptions were studied by fitting them into Langmuir and Freundlich isotherm models using eqs and , respectively where C e is the equilibrium concentration of metal ions in solution (mg/L) and K L and K F are Langmuir and Freundlich constants (L/mg), respectively.…”

Section: Methodsmentioning

confidence: 99%

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White Eggshells: A Potential Biowaste Material for Synergetic Adsorption and Naked-Eye Colorimetric Detection of Heavy Metal Ions from Aqueous Solution

Dayanidhi¹,

Vadivel²,

Jothi³

et al. 2019

ACS Appl. Mater. Interfaces

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In the present work, we have utilized a simple, no-cost, unmodified eggshell powder as a naked-eye colorimetric detector, which on simple dispersion in aqueous solution of metal ions exhibited characteristic color change from white to pale green, pale blue, yellow, pale yellow, dark yellow, pale pink, blue, and brown for metal ions V 4+ , Cr 3+ , Cr 6+ , Fe 2+ , Fe 3+ , Co 2+ , Cu 2+ , and Ag + , respectively. The effects of various parameters like concentration of metal ions, pH, temperature, and adsorbent dosage were investigated by batch sorption experiments. Also, Freundlich and Langmuir models were used to describe the adsorption isotherm. The eggshell powder before and after adsorption was characterized qualitatively by the naked-eye and quantitatively by diffuse reflectance spectroscopy-UV, Fourier transform infrared, atomic absorption spectroscopy, powder Xray diffraction, scanning electron microscopy with energy-dispersive X-ray spectroscopy, Brunauer−Emmett−Teller, zeta potential, and X-ray photoelectron spectroscopy techniques. In addition, the competitive adsorption of metal ions in mixtures and the recycle experiments were carried out to prove the sustainability of the material. Further, the red, green, and blue alterations were extracted from the colorimetric array and subjected to hierarchical clustering analysis using the Ward method by calculating the Euclidean distance, which displayed facile discrimination of 10 heavy metal ions at 1 mM level. Thus, the unmodified eggshell powder has been proven to be an impressive value-added sustainable material for synergistic metal adsorption and colorimetric naked-eye detection of a series of metal ions with detection limits of 10 −4 M for Fe 3+ , Fe 2+ , and Cu 2+ ; 10 −3 M for Cr 3+ , Cr 6+ , Ag + , and Co 2+ ; and 5 × 10 −3 M for V 4+ .

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supporting

confidence: 66%

Section: Methodsmentioning

confidence: 99%

White Eggshells: A Potential Biowaste Material for Synergetic Adsorption and Naked-Eye Colorimetric Detection of Heavy Metal Ions from Aqueous Solution

Dayanidhi¹,

Vadivel²,

Jothi³

et al. 2019

ACS Appl. Mater. Interfaces

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“…The flasks were shaken on the orbital Heldoph shaker (Heidolph North America, Wood Dale, IL, USA) (at a constant speed of 170 rpm. The sorption process was investigated as a function of contact time (15-500 min), initial pH value (2)(3)(4)(5)(6)(7)(8)(9)(10)(11) and initial selenium concentration (0.1-5 mg L −1 ), while the temperature and solid/liquid ratio were kept constant.…”

Section: Methodsmentioning

confidence: 99%

Selenate Adsorption from Water Using the Hydrous Iron Oxide-Impregnated Hybrid Polymer

Marjanović

Perić-Grujić

Ristić

et al. 2020

Metals

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Hybrid adsorbent, based on the cross-linked copolymer impregnated with hydrous iron oxide, was applied for the first time for Se(VI) adsorption from water. The influence of the initial solution pH, selenate concentration and contact time to adsorption capacity was investigated. Adsorbent regeneration was explored using a full factorial experimental design in order to optimize the volume, initial pH value and concentration of the applied NaCl solution as a reagent. Equilibrium state was described using the Langmuir model, while kinetics fitted the pseudo-first order. The maximum adsorption capacity was found to be 28.8 mg/g. Desorption efficiency increased up to 70%, and became statistically significant with the reagent concentration and pH increase, while the applied solution volume was found to be insignificant in the investigated range. Based on the results obtained, pH influence to the adsorption capacity, desorption efficiency, Fourier transform infrared (FTIR) and X-ray diffraction (XRD) analysis of loaded adsorbent, it was concluded that the outer- and inner-sphere complexation are mechanisms responsible for Se(VI) separation from water. In addition to the experiments with synthetic solutions, the adsorbent performances in drinking water samples were explored, showing the purification efficiency up to 25%, depending on the initial Se(VI) concentration and water pH. Determined sorption capacity of the cross-linked copolymer impregnated with hydrous iron oxide and its ability for regeneration, candidate this material for further research, as a promising anionic species sorbent.

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“…Ecology as a whole and the groundwater could be seriously endangered by nickel contamination from industrial and mining activities. This is dangerous due to the bioaccumulative nature of this element [ 14 ]. There are many ways to purify water, and one of the most appreciated is the ion exchange with the use of ion exchangers [ 15 , 16 ].…”

Section: Introductionmentioning

confidence: 99%

Determination of the Ni(II) Ions Sorption Mechanism on Dowex PSR2 and Dowex PSR3 Ion Exchangers Based on Spectroscopic Studies

et al. 2023

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This paper estimates the suitability of the strongly basic anion exchangers, Dowex PSR2 and Dowex PSR3, as sorbents of nickel ions in aqueous solutions. These actions are aimed at searching for new solutions due to the growing discharge of nickel into wastewaters, primarily due to its addition to steel. The nickel sorption experiments were conducted under static conditions and resulted in the optimization of pH, phase contact time, initial solution concentration, and temperature. The next step was to calculate the kinetic, isothermal, and thermodynamic parameters. Moreover, the ion exchangers were characterized by means of Fourier transform infrared spectroscopy, X-ray photoelectron spectroscopy, and CHN elemental analysis. It was found that the sorption process was most effective at pH 6 after 240 min and at the temperature of 293 K. The values of the thermodynamic parameters revealed that the adsorption was exothermic and spontaneous. The physicochemical analyses combined with the experimental research enabled determination of the sorption mechanism of Ni(II) ions.

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Nickel sorption using Bioclastic Granules as a sorbent material: equilibrium, kinetic and characterization studies

Cited by 14 publications

References 63 publications

White Eggshells: A Potential Biowaste Material for Synergetic Adsorption and Naked-Eye Colorimetric Detection of Heavy Metal Ions from Aqueous Solution

White Eggshells: A Potential Biowaste Material for Synergetic Adsorption and Naked-Eye Colorimetric Detection of Heavy Metal Ions from Aqueous Solution

Selenate Adsorption from Water Using the Hydrous Iron Oxide-Impregnated Hybrid Polymer

Determination of the Ni(II) Ions Sorption Mechanism on Dowex PSR2 and Dowex PSR3 Ion Exchangers Based on Spectroscopic Studies

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