Intensification of strontium (II) ion biosorption on Sargassum sp via response surface methodology

Soleymani, Fatemeh; Khani, Mohammad Hassan; Pahlevanzadeh, H.; Amini, Younes

doi:10.1038/s41598-023-32532-5

Cited by 11 publications

(2 citation statements)

References 74 publications

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“…Most of these methods involve high capital costs or are only suitable for separating high concentrations of heavy metals. Adsorption is very cheap and has very good flexibility in adsorbing heavy metals [30][31][32][33][34][35] . Some of the adsorbents used in the adsorption of heavy metals are activated carbon, ion exchange resins and biological adsorbents [36][37][38][39][40][41][42] .…”

Section: Investigation Of Kinetic Isotherm and Adsorption Efficacy Of...mentioning

confidence: 99%

Investigation of kinetic, isotherm and adsorption efficacy of thorium by orange peel immobilized on calcium alginate

Khamseh

Ghorbanian

Amini

et al. 2023

Sci Rep

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In this research work the thorium uptake on immobilized protonated orange peel was studied in a batch system. The effects of effective parameters such as biosorbent dosage, initial metal ion concentration, and contact time on the biosorption of thorium were analyzed. The biosorption capacity of the immobilized orange peel for thorium at optimal conditions of initial pH 3.8, biosorbent dosage 8 g/L, and initial thorium concentration 170 mg/L was found to be 18.65 mg/g. According to the results of contact time, the biosorption process reached equilibrium after around 10 h of contact. Investigation of the kinetics showed that the biosorption of thorium onto immobilized orange peel follows the pseudo-second-order model. The Langmuir and Freundlich isotherms were used to model the experimental equilibrium data. The results showed better agreement by the Langmuir isotherm. The maximum absorption capacity of immobilized protonated orange peel for thorium adsorption was predicted by the Langmuir isotherm at 29.58 mg/g.

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Section: Investigation Of Kinetic Isotherm and Adsorption Efficacy Of...mentioning

confidence: 99%

Investigation of kinetic, isotherm and adsorption efficacy of thorium by orange peel immobilized on calcium alginate

Khamseh

Ghorbanian

Amini

et al. 2023

Sci Rep

Self Cite

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“…Lanthanum and cerium are used as raw materials for high-tech industries. The applications of these elements in metallurgy, agriculture, chemicals, ceramics petrochemical, opticals, electronics and nuclear technologies are diverse and the growth of demand for these materials in international markets has led to an increase in the prices of rare earth elements in recent years 3 – 5 . With the increase in demand for rare earth elements, the balance between the world demand and the natural affluence of the REEs in ores, often created as the balance problem, is a serious issue for REEs preparator 6 – 8 .…”

Section: Introductionmentioning

confidence: 99%

Ce(III) and La(III) ions adsorption using Amberlite XAD-7 resin impregnated with DEHPA extractant: response surface methodology, isotherm and kinetic study

Yarahmadi

Khani

Nasiri

et al. 2023

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In this paper, the removal efficiency of Cerium (Ce(ΙΙΙ)) and lanthanum (La(ΙΙΙ)) ions from aqueous solution using Amberlite XAD-7 resin impregnated with DEHPA(XAD7-DEHPA) was studied in the batch system. The adsorbent ( XAD7–DEHPA) was characterized by SEM–EDX, FTIR and BET analysis Techniques. The response surface methodology based on the central composite design was applied to model and optimize the removal process and evaluate operating parameters like adsorbent dose (0.05–0.065), initial pH (2–6) and temperature (15–55). Variance analysis showed that the adsorbent dose, pH and temperature were the most effective parameters in the adsorption of Ce(ΙIΙ)and La(IΙI) respectively. The results showed that the optimum adsorption condition was achieved at pH = 6, the optimum amount of absorbent and the equilibrium time equal to 0.6 gr and 180 min, respectively. According to the results, the adsorption percentage of Ce(ΙIΙ) and La(ΙΙΙ) ions onto the aforementioned resin were 99.99% and 78.76% respectively. Langmuir, Freundlich, Temkin and sips isotherm models were applied to describe the equilibrium data. From the results, Langmuir isotherm (R2 (Ce) = 0.999, R2 (La) = 0.998) was found to better correlate the experimental rate data. The maximum adsorption capacity of the adsorbent ( XAD7–DEHPA) for both Ce(IΙI) and La(III) was found to be 8.28 and 5.52 mg g−1 respectively. The kinetic data were fitted to pseudo-first-order, pseudo-second-order and Intra particle diffusion models. Based on the results, the pseudo-first-order model and Intra particle diffusion model described the experimental data as well. In general, the results showed that ( XAD7–DEHPA) resin is an effective adsorbent for the removal of Ce(IΙI) and La(III) ions from aqueous solutions due to its high ability to selectively remove these metals as well as its reusability.

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Statistical analysis, equilibrium and dynamic study on the biosorption of strontium ions on Chlorella vulgaris

Khani

Khamseh

2023

J Radioanal Nucl Chem

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Intensification of strontium (II) ion biosorption on Sargassum sp via response surface methodology

Cited by 11 publications

References 74 publications

Investigation of kinetic, isotherm and adsorption efficacy of thorium by orange peel immobilized on calcium alginate

Investigation of kinetic, isotherm and adsorption efficacy of thorium by orange peel immobilized on calcium alginate

Ce(III) and La(III) ions adsorption using Amberlite XAD-7 resin impregnated with DEHPA extractant: response surface methodology, isotherm and kinetic study

Statistical analysis, equilibrium and dynamic study on the biosorption of strontium ions on Chlorella vulgaris

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