Comprehensive performance analysis of kinetic models used to estimate asphaltene adsorption kinetics on nanoparticles

Ali, Syed Imran; Lalji, Shaine Mohammadali; Zahoor, Awan; Hashmi, Saud; Khan, Ghani; Asad, Muhammad

doi:10.1007/s11696-022-02539-9

Cited by 5 publications

(2 citation statements)

References 25 publications

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“…To better understand the modes of adsorption kinetics, several models are used, e.g., pseudo-first order, pseudo-second order, double constant, and Elovich models (equations); among them, pseudo-first order and pseudo-second order equations are commonly used due to their simplicity (Ali et al, 2023): ln q e − q t ln q e − k 1 t ( 1 )…”

Section: Adsorption Kinetic Modelsmentioning

confidence: 99%

Performance of removing aqueous contaminant by zirconium based adsorbents: a critical review

Zhao,

Yang,

Chen

2024

Front. Chem. Eng.

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The studies on materials for decontamination in aqueous solutions have increasingly received greater attentions. Such contaminants as heavy metals, arsenic, fluoride and phosphate are harmful to humans and aqueous species due to higher toxicity. Zirconium based adsorbents have become more attractive due to outstanding performance in decontamination. This article provides a comprehensive review of the performance and mechanisms of five types adsorbents: zirconium (hydro)oxides, zirconium hydrogen sulfate, zirconium based multiple metal typed adsorbents and zirconium impregnated complexes. The pseudo-first order and pseudo-second order equations and the intraparticle diffusion model can be applied in describing the adsorption kinetics, while Langmuir and Freundlich equations are the most commonly used adsorption isotherms. The important mechanisms for uptake of contaminants are: ligand exchange between adsorbate and adsorbent, surface complexation formation, and Lewis acid–base and electrostatic interactions. A series of successful studies demonstrate that the adsorbents are promising for removing aqueous contaminants.

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Section: Adsorption Kinetic Modelsmentioning

confidence: 99%

Performance of removing aqueous contaminant by zirconium based adsorbents: a critical review

Zhao,

Yang,

Chen

2024

Front. Chem. Eng.

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“…Kinetic studies: For the removal of U(VI), Pb(II), Cr(VI) and Cd(II) by ZnO NPs, the equilibrium adsorption model was compared to the pseudo-first and pseudo-second orders of Lagergren's kinetic model, intraparticle diffusion model and Elovich model [40,42].…”

Section: Effect Of Phmentioning

confidence: 99%

Effective removal of selective heavy metal ions from aqueous solution through green synthesized zinc oxide nanoparticles

Kashyap,

Moharana,

Agrawal

et al. 2023

ajc

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The presence of pollutants such as harmful heavy metals in aqueous system is currently one of the largest environmental problems. Due to unmanaged discharge from numerous industries, this system is a serious problem in the major cities of developing nations. Due to the adverse effects on the environment and potential to cause cancer in humans, these contaminants are anticipated to require special consideration. Pollution clearance is a difficult problem that needs to be tackled if adverse effects on people and the environment are to be avoided or minimized. The main objective of this present research is to synthesize zinc oxide nanoiparticles (ZnO-NPs) from Nyctanthus arbor-tristis flower in a safe, non-toxic, and ecologically friendly manner. The adsorption of U(VI), Pb(II), Cr(VI) and Cd(II) ions from aqueous solutions by Nyctanthus arbor-tristis flower extract was investigated under laboratory conditions to assess its potential in removing these metal ions. The impacts of the experimental factors, such as ZnO-NPs dosage, solution pH, and contact time, were investigated. The study shows that the majority of the toxic metal ions can be adsorbed from the solution in a relatively short duration of time under ambient conditions. The adsorption behavior of toxic metal ions onto the ZnO-NPs was analyzed with Freundlich as well as Langmuir rate equations and the results were supported by the pseudo-second-order kinetic models. The study provides a safe, non-toxic, and eco-friendly green synthesis method and also demonstrated excellent performance of the synthesized ZnO-NPs.

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Use of Fe-Mn magnetic adsorbent to remove mercury from wastewater

Vatandoost,

Mohammadi,

Akhlaghian

2024

Desalination and Water Treatment

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Comprehensive performance analysis of kinetic models used to estimate asphaltene adsorption kinetics on nanoparticles

Cited by 5 publications

References 25 publications

Performance of removing aqueous contaminant by zirconium based adsorbents: a critical review

Performance of removing aqueous contaminant by zirconium based adsorbents: a critical review

Effective removal of selective heavy metal ions from aqueous solution through green synthesized zinc oxide nanoparticles

Use of Fe-Mn magnetic adsorbent to remove mercury from wastewater

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