Selective adsorption of lead(II) from aqueous solution

Hoang, Viet Anh; Nishihama, Syouhei; Yoshizuka, Kazuharu

doi:10.1080/09593330.2020.1866088

Cited by 6 publications

(10 citation statements)

References 28 publications

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“…The results in Figure 7 and Table 4 indicate that the Cu 2+ adsorption processes by PSFPA conformed to the pseudo‐second‐order kinetic equation. The calculated equilibrium adsorption capacities

q_{E}

are in good agreement with the experimental data of 2.08, 2.66, and 2.92, respectively, which are among the best values reported to date for chelating resin materials (vide infra) 29–35 …”

Section: Resultssupporting

confidence: 79%

“…The calculated equilibrium adsorption capacities q E are in good agreement with the experimental data of 2.08, 2.66, and 2.92, respectively, which are among the best values reported to date for chelating resin materials (vide infra). [29][30][31][32][33][34][35] The liquid film diffusion Equation (10) 36 and intraparticle diffusion model Equation ( 11) 37 were commonly used to investigate the diffusion mechanism and their diffusion equations are as follows:…”

Section: Kinetic Experimentsmentioning

confidence: 99%

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Polyethyleneimine‐condensed polystyrene resin: A specific adsorbent for Cu²⁺ over Ni²⁺

Meng

Liu

et al. 2022

J of Applied Polymer Sci

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A polyethyleneimine grafted polystyrene adsorption resin (PSFPA) was prepared by condensation reaction of formylated polystyrene resin (PSF) with polyethyleneimine (PEI). The material has been characterized by IR spectroscopy, CHN elemental, specific surface area and pore size and thermal gravimetric analyses. It showed a superb equilibrium adsorptive capacity of 2.92 mmol/g for Cu 2+ at 318 K and no uptake of Ni 2+ at all in neither single metal nor binary systems with Ni:Cu ratio high up to 100, suggesting a potential applicability of PSFPA in refining Ni electrolyte. The Cu adsorption/ desorption behaviors were further detailedly studied in static and dynamic modes by investigating pH, temperature, and initial concentration effects. Kinetic studies indicated that the adsorption of Cu 2+ by PSFPA conformed to pseudo-second-order kinetics, and the adsorption rate was controlled by intraparticle diffusion. The adsorption followed Langmuir isotherms and was identified as a spontaneous endothermic process.

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q_{E}

are in good agreement with the experimental data of 2.08, 2.66, and 2.92, respectively, which are among the best values reported to date for chelating resin materials (vide infra) 29–35 …”

Section: Resultssupporting

confidence: 79%

Section: Kinetic Experimentsmentioning

confidence: 99%

Polyethyleneimine‐condensed polystyrene resin: A specific adsorbent for Cu²⁺ over Ni²⁺

Meng

Liu

et al. 2022

J of Applied Polymer Sci

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“…A comparison for lead (II) ion adsorption capacities of adsorbents ( I@Fe 3 O 4 , II@Fe 3 O 4 and III@Fe 3 O 4 ) produced from esters impregnated with iron oxide magnetic nanoparticales Fe 3 O 4 is tabulated in Table 10. The maximum monolayer adsorption capacity of II@Fe 3 O 4 from Langmuir isotherms for lead (II) ions is found to be the highest in comparison with the literature [16,[17][18][19][20][21][22][23] .…”

Section: ………… (8)mentioning

confidence: 50%

Preparation and characterization of some esters impregnated with magnetic iron oxide nanoparticles Fe3O4 and study of their efficiency in for adsorption of lead ions from their aqueous solutions

Jaafar¹,

Abdulwahid

2021

basjs

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Lead is a naturally occurring toxic metal found in the earth's crust . Its widespread use has resulted in extensive environmental contamination, human exposure and significant public health problems in many parts of the world . In this study we report the preparation of three esters impregnated with magnetic nanoparticles Fe3O4, esters prepared from 2,2-bis(hydroxyl methyl)propane-1,3-diol with 4-hydroxy benzoic acid (I), nicotinic acid (niacin) (II) and stearic acid (III). The synthesis absorbents (I@Fe3O4, II@Fe3O4 and III@Fe3O4) proved to be effective for the removal of lead ions from aqueous solution at near-neutral pH , the adsorption behavior was matching with Langmuir model for I@Fe3O4 and II@Fe3O4 and in keeping with Freundlich model for III@Fe3O4 with qmax values of 862.068 mg/g, 1149.425 mg/g and 261.096 mg/g respectivally . The adsorption of Pb(II) follows pseudo-first-order kinetics for three adsorbents.

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“…As given in Figure 7 and Table 2, Table 3,it can be concluded that the pseudo‐second‐order model is more suitable for describing the adsorption kinetics, and the theoretical adsorption capacity calculated with this model is closer to the experimentally measured value than the other one. Therefore, the Pb(II) and Ag(I) adsorption to the obtained composite spheres is mainly controlled by chemisorption [41] …”

Section: Resultsmentioning

confidence: 99%

“…Therefore, the Pb(II) and Ag(I) adsorption to the obtained composite spheres is mainly controlled by chemisorption. [41]…”

Section: Adsorption Kineticsmentioning

confidence: 99%

Facile Preparation of Millimeter‐Sized Sodium Alginate‐Silica Composite Spheres for Highly Selective Adsorption of Heavy Metal Ions

et al. 2022

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Millimeter‐sized (∼3.5 mm) sodium alginate‐silica composite spheres with macroporous structure and functional groups of amino‐ (NH2‐SiO2/SA) and sulfhydryl (SH‐SiO2/SA), respectively, were successfully prepared by a simple hydrothermal copolycondensation. The obtained materials were characterized by FT‐IR, SEM, XPS, N2 adsorption‐desorption techniques, and their heavy metal ion adsorption performance was evaluated in detail under different conditions. Characterization results revealed that the functional group plays a key role in the selectivity of metal ions, that is, NH2‐SiO2/SA preferentially adsorbs the relatively hard Pb(II) ions while SH‐SiO2/SA favors the softer Ag(I) ion, which is attributed to the fact that S atoms are softer donor than N atoms. The adsorption kinetics and the adsorption equilibrium fitted well with the pseudo‐second‐order model and Langmuir adsorption isotherms, respectively. The adsorption experiments showed the maximum adsorption capacities of Pb(II) for NH2‐SiO2/SA and Ag(I) for SH‐SiO2/SA are 460 mg/g and 417 mg/g, respectively, giving good stability without a significant decrease in 5 recycles. Therefore, the synthesized materials display promising adsorbents for recycling heavy metal pollutants from wastewater due to their good selectivity, high adsorption capacity, stability and easy recovery due to their large size.

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Selective adsorption of lead(II) from aqueous solution

Cited by 6 publications

References 28 publications

Polyethyleneimine‐condensed polystyrene resin: A specific adsorbent for Cu²⁺ over Ni²⁺

Polyethyleneimine‐condensed polystyrene resin: A specific adsorbent for Cu²⁺ over Ni²⁺

Preparation and characterization of some esters impregnated with magnetic iron oxide nanoparticles Fe3O4 and study of their efficiency in for adsorption of lead ions from their aqueous solutions

Facile Preparation of Millimeter‐Sized Sodium Alginate‐Silica Composite Spheres for Highly Selective Adsorption of Heavy Metal Ions

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Selective adsorption of lead(II) from aqueous solution

Cited by 6 publications

References 28 publications

Polyethyleneimine‐condensed polystyrene resin: A specific adsorbent for Cu2+ over Ni2+

Polyethyleneimine‐condensed polystyrene resin: A specific adsorbent for Cu2+ over Ni2+

Preparation and characterization of some esters impregnated with magnetic iron oxide nanoparticles Fe3O4 and study of their efficiency in for adsorption of lead ions from their aqueous solutions

Facile Preparation of Millimeter‐Sized Sodium Alginate‐Silica Composite Spheres for Highly Selective Adsorption of Heavy Metal Ions

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Product

Resources

About

Polyethyleneimine‐condensed polystyrene resin: A specific adsorbent for Cu²⁺ over Ni²⁺

Polyethyleneimine‐condensed polystyrene resin: A specific adsorbent for Cu²⁺ over Ni²⁺