A review on environmental chemodynamics, isothermal, kinetics, and thermodynamics modeling for the adsorptive removal of Cr(<scp>vi</scp>) from the industrial effluent using magnetic nanoparticles as a bio-sorbent

Nadarajah, Rekah; Hossain, Md. Sohrab; Siddique, Md Bazlul Mobin; Arafath, Md. Azharul; Naushad, Mu.; Lim, Jun Wei; Al-Gheethi, Adel; Ahmad, Harlina

doi:10.1039/d3ew00199g

Cited by 4 publications

(1 citation statement)

References 93 publications

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“…The isotherms adsorption process of boron at temperatures of 288.15, 298.15, 308.15 and 318.15 K were investigated using Langmuir [34] and Freundlich [35] isotherm models expressed as the following:…”

Section: Adsorption Kinetics Isotherms and Thermodynamic Studymentioning

confidence: 99%

Facile synthesis of core-shell magnetic Fe3O4@SiO2-NH2 nanoparticles and their application for rapid boron removal from aqueous solution

Hu,

Zhang,

Peng

et al. 2023

Preprint

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Amino-functionalized magnetic particles (Fe3O4@SiO2-NH2) with core-shell structure were synthesized and evaluated for rapid boron removal from aqueous solution. Results showed that the specific surface area of Fe3O4@SiO2-NH2 (165.17 m2⋅g− 1) increased greatly compared to the pure Fe3O4 (49.07 m2⋅g− 1). The adsorption equilibrium was less than 2 h with an adsorption capacity of 29.76 mg⋅g− 1at pH = 6 of 15°C. The quasi second-order kinetic model described well the boron adsorption process and the Freundlich model was more suitable for characterizing the adsorption isotherms. Furthermore, the negative value of Gibbs free energy indicated that the adsorption was spontaneous and an exothermic process. The zeta potential and XPS analysis before and after adsorption revealed that the main adsorption mechanism was the hydrogen bonding formation between the terminal –NH2 groups of the adsorbent and the boric acid. In addition, the adsorbent still maintained a high adsorption performance after five adsorption-desorption cycles, which illustrated that the Fe3O4@SiO2-NH2 may be a potential adsorbent for the environmental boron removal treatment.

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Section: Adsorption Kinetics Isotherms and Thermodynamic Studymentioning

confidence: 99%

Facile synthesis of core-shell magnetic Fe3O4@SiO2-NH2 nanoparticles and their application for rapid boron removal from aqueous solution

Hu,

Zhang,

Peng

et al. 2023

Preprint

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Adsorption of Cr(VI) ions onto fluorine-free niobium carbide (MXene) and machine learning prediction with high precision

Ishtiaq,

Zahra,

Iftikhar

et al. 2024

Journal of Environmental Chemical Engineering

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Facile Synthesis of Core-Shell Magnetic Iron Oxide@SiO2-NH2 Nanoparticles and Their Application in Rapid Boron Removal from Aqueous Solutions

Hu,

Zhang,

Peng

et al. 2024

Magnetochemistry

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In this study, amino-functionalized magnetic particles (iron oxide@SiO2-NH2) with core-shell structures were synthesized and evaluated for rapid boron removal from aqueous solutions. The results showed that the specific surface area of the iron oxide@SiO2-NH2 (131.24 m2⋅g−1) increased greatly compared to pure iron oxide (30.98 m2⋅g−1). The adsorption equilibrium was less than 2 h, with an adsorption capacity of 29.76 mg⋅g−1 at pH = 6 at 15 °C. The quasi-second-order kinetic model described the boron adsorption process well, and both the Langmuir and Freundlich models were suitable for characterizing the adsorption isotherms. The zeta potential and XPS analysis before and after adsorption revealed that the main adsorption mechanism was the hydrogen bonding formation between the terminal -NH2 groups of the adsorbent and the boric acid. In addition, the adsorbent still maintained a high adsorption performance after five adsorption–desorption cycles, which illustrated that the iron oxide@SiO2-NH2 may be a potential adsorbent for environmental boron removal treatment.

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A review on environmental chemodynamics, isothermal, kinetics, and thermodynamics modeling for the adsorptive removal of Cr(vi) from the industrial effluent using magnetic nanoparticles as a bio-sorbent

Abstract: The contamination of the hexavalent chromium [Cr(VI)] in the aquatic ecosystem poses environmental concerns due to its portability and highly poisonous quality. The implementation of magnetic bio-adsorbent has received immense...

Cited by 4 publications

References 93 publications

Facile synthesis of core-shell magnetic Fe3O4@SiO2-NH2 nanoparticles and their application for rapid boron removal from aqueous solution

Facile synthesis of core-shell magnetic Fe3O4@SiO2-NH2 nanoparticles and their application for rapid boron removal from aqueous solution

Adsorption of Cr(VI) ions onto fluorine-free niobium carbide (MXene) and machine learning prediction with high precision

Facile Synthesis of Core-Shell Magnetic Iron Oxide@SiO2-NH2 Nanoparticles and Their Application in Rapid Boron Removal from Aqueous Solutions

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