Theoretical studies on adsorption of Ni(II) from aqueous solution using <i>Citrus limetta</i> peels

Singh, Saurabhkumar; Shukla, S. R.

doi:10.1002/ep.12526

Cited by 19 publications

(9 citation statements)

References 36 publications

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“…The adsorption of the ions occurs inside the pores and cavities of the material [35]. These results are consistent with those found when using Citrus limetta for adsorption of Ni (II) [36], Citrus limettioides [37], coconut sawdust, and bagasse [38]. Previously, we reported for the residual biomass of plantain starch a surface area of 3.859 m 2 /g, a pore volume of 4x10 -7 m 3 /g, and pore size of 4.89x10 -9 m; thus, it can be said that the bio-adsorbent has the presence of mesoporous, with a small volume and surface area [3].…”

Section: Characterization Of the Biomaterialssupporting

confidence: 90%

Use of agro-industrial residues of plantain (Musa paradisiaca) in the adsorption of Ni (II)

Tovar

Villabona-Ortíz

Cortina-Góngora

et al. 2021

Rev.Fac.Ing.Univ.Antioquia

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The presence of heavy metals in aqueous media represents a severe threat to ecosystems because they are non-biodegradable, toxic, and carcinogenic. In the present work, the utilization of agro-industrial residues from obtaining plantain starch for removing Ni (II) was studied, establishing the effect of temperature, adsorption dose, and initial concentration. The kinetics, equilibrium, and thermodynamic parameters that determine the process were studied. For this purpose, tests were carried out in a batch system maintaining constant stirring (200 rpm), pH (2), and solution volume (100 mL). The remaining metal concentration was determined by atomic adsorption at 237 nm. It was found that the best adsorption conditions were given at 55 ºC, 0.6775 g, and 368 mg/L obtaining a maximum adsorption capacity of 47.57 mg/g corresponding to a removal of 87%. The kinetic model that best fits the experimental data was a pseudo-second-order model, and the isotherm that describes the process is Langmuir and Freundlich, so the adsorption is given by chemisorption and multilayers. The thermodynamic parameters determined suggest that the process is favourable, not spontaneous, endothermic, and irreversible under the studied conditions. The results show that the residual biomass from the obtaining of plantain starch is a good precursor for absorbing Ni (II) in an aqueous solution.

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Section: Characterization Of the Biomaterialssupporting

confidence: 90%

Use of agro-industrial residues of plantain (Musa paradisiaca) in the adsorption of Ni (II)

Tovar

Villabona-Ortíz

Cortina-Góngora

et al. 2021

Rev.Fac.Ing.Univ.Antioquia

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“…SEM images of the biomaterials after adsorption of Cr (VI) and Ni (II) clearly show their smoother and more diffused structure due to the surface coverage with the metals. Previous studies report similar results when removing metals with biomaterials from Citrus limetta [19], Citrus limettoides [20], coconut sawdust, and cane bagasse [58]. After adsorption, appearance of Cr (VI) was observed in the high-intensity peaks 0.6, 5.6, and 6 keV; additionally observed were the increase of C, the decrease of O, K, and the disappearance of Na at 1 ekV and K at 3.4 keV, which could be due to the formation of bonds between the ion and the active centers of the bio adsorbent [59].…”

Section: Characterization Of the Adsorbent Biomaterialssupporting

confidence: 67%

“…Various adsorbents have been tested for the removal of heavy metals from aqueous solutions with promising results based on living biomass (fungi, algae, and bacteria) and agricultural biomass (husks, sawdust, agricultural and agroindustrial wastes) [13][14][15][16][17]. Different lignocellulosic biomasses have been used in heavy metal remotion, such as millet [18], lime [19,20], rice husks [18,21], black walnut bark [22], eucalyptus [23], palm residues [24], plantain [25], and kenaf [26], among others [27][28][29][30][31], presenting high removal yields. The use of bio adsorbents of residual lignocellulosic origin has advantages, such as low cost, high availability, and excellent performance at high and low concentrations [32].…”

Section: Introductionmentioning

confidence: 99%

Batch and Packed Bed Column Study for the Removal of Cr (VI) and Ni (II) Using Agro-Industrial Wastes

2021

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The objective of this study was to prepare bio adsorbents from agro-industrial wastes from yam starch (YSR) and plantain (PSR) production for its use in the removal of Cr (VI) and Ni (II) in aqueous solution in batch and continuous packed-bed column systems. Bromatological analysis showed that the biomaterials are rich in cellulose, lignin, hemicellulose, and SEM micrographs that evidence a mesoporous structure characteristic of materials of lignocellulosic origin. FTIR evidenced functional groups such as hydroxyl, carbonyl, and methyl, possibly involved in the uptake of metal ions. EDS and FTIR analysis after adsorption confirmed that the retention of the metals on the surface of the adsorbent materials was successful. Cr (VI) and Ni (II) removal efficiencies above 80% were achieved using YSR and PSR in batch systems at the different conditions evaluated. The optimum conditions for removing Ni (II) on PSR were a bed height of 11.4 cm and a temperature of 33 °C, while for YSR, they were: 43 °C and 9 cm for temperature and bed height respectively. The variable with the most significant influence on the removal of Cr (VI) in a batch system on the two bio adsorbents was temperature. In contrast, the adsorbent dose and temperature are relevant factors for PSR Ni (II) removal. Therefore, the residues from the preparation of yam and plantain starch have high potential for removing heavy metals from wastewater and are presented as an alternative for their final disposal.

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“…Different lignocellulosic biomasses have been used in the removal of Pb (II) and Ni (II), such as millet [16], lime [9], [17], rice husks [16], [18] black walnut bark [19], among others [20]- [24]; presenting high removal yields. The objective of the present study is to use the lemon peel as a bioadsorbent of Pb(II) and Ni(II) in aqueous solution in selective and multicomponent systems, in the latter case, since both for industrial discharges and wastewater discharges the pollutants are mixed.…”

Section: Introductionmentioning

confidence: 99%

Adsorption in a binary system of Pb (II) and Ni (II) using lemon peels

Tovar

Sierra-Ardila

Meza-Acuña

et al. 2020

Rev.Fac.Ing.Univ.Antioquia

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The elimination of pollutants in water sources is a widely studied issue with the purpose of preserving the environment. In this work, the use of lemon peel (citrus lemon) as a bio-sorbent in the removal of Pb (II) and Ni (II) is studied, varying the temperature, adsorbent dose, and particle size. The materials were characterized by Fourier Transform Infrared Spectroscopy (FTIR), Scanning Electron Microscopy (SEM) and Energy Dispersive Spectroscopy (EDS) analysis, to determine the bio adsorbent’s physicochemical properties. FTIR and EDS techniques confirmed the precipitation of ions on the adsorbent after the adsorption process. It was found that the optimal conditions according to the Response Surface Methodology (RSM) are: particle size for Ni (II) of 1 and 0.355 mm, adsorbent dose 0.077 g and 0.117 g, and temperatures of 34 and 45 ºC, for Pb (II) and Ni (II), respectively. The results reported that the Dubinin-Radushkevich isotherm and the pseudo-second-order model are more in line with the experimental data, suggesting that the adsorption process is driven by physisorption and occurs in multilayers. Thermodynamic parameters suggest that the process is exothermic for Ni (II) and endothermic for Pb (II), and irreversible. The binary study showed that there is no competition for active sites between the ions.

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Theoretical studies on adsorption of Ni(II) from aqueous solution using Citrus limetta peels

Cited by 19 publications

References 36 publications

Use of agro-industrial residues of plantain (Musa paradisiaca) in the adsorption of Ni (II)

Use of agro-industrial residues of plantain (Musa paradisiaca) in the adsorption of Ni (II)

Batch and Packed Bed Column Study for the Removal of Cr (VI) and Ni (II) Using Agro-Industrial Wastes

Adsorption in a binary system of Pb (II) and Ni (II) using lemon peels

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