Adsorption of sodium and lithium ions onto helicenes molecules: Experiments and phenomenological modeling

Yahia, Mohamed Ben; Yahia, Manel Ben; Aouaini, Fatma; Knani, Salah; Al-Ghamdi, Hanan; Almogait, Entesar Sulaiman; Lamine, Abdelmottaleb Ben

doi:10.1016/j.molliq.2019.110998

Cited by 20 publications

(23 citation statements)

References 52 publications

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“…However, one saturation level followed with a drop is observed for the silver nitrate isotherms. According to previous studies, this decrease in the adsorbed quantity after saturation is mainly due to the lateral interactions between the adsorbate particles at free state 10,21,35 . This description requires the use of the chemical potential of real gas in which the lateral interactions are introduced.…”

Section: Development Of Advanced Modelsmentioning

confidence: 64%

“…In this section, the microscopic investigation of the three complexation systems is carried out by adopting advanced statistical physics models. This approach has been recently used with great success 10,21,22,26 in adsorption isotherms modeling.…”

Section: Statistical Physics Analysismentioning

confidence: 99%

“…Moreover, It has been shown that thin layers of adsorbed ions (Li + , Mg 2+ , Fe 2+ , K + , Na + …) based functionalized heptaHelicene or macrocycle molecules (e.g porphyrins) can be obtained on solid support of quartz www.nature.com/scientificreports www.nature.com/scientificreports/ crystal [10][11][12] . The QCM strategy includes the preparation of thin-film of composite doped on quartz crystal which is demonstrated to be highly reproducible and permits outstanding control over the adsorbed film thickness.…”

mentioning

confidence: 99%

“…Films formed in this way have several virtues: first, they are mechanically stable and tolerant of different solvents and reaction conditions used for common organic transformations 15 ; second, they are adequately well ordered that globally most of the complexing Helicenes are attractive candidates for this application because they have been demonstrated to be dynamic adsorbent in the complexation processes 16 . Interestingly, it should be noted that the QCM technique was devoted for the achievement of experimental adsorption isotherms by identifying the complexed masses of metallic ions for a wide range of concentration under various temperatures [10][11][12] . The initial success of this experimental approach has encouraged us to study the complexation of silver ions on hexaHelicene and to investigate the microscopic properties of the formed complex.…”

mentioning

confidence: 99%

“…Actually, several examinations indicated that the heptaHelicene can complex the alkali metals (K + , Na + , Cs + , Li + …) 10,21,22 . However, it is exhibited that the binding of the silver (I) particle in the focal cavity of [7]Helicene shows that the counter ion is feebly coordinated 23 .…”

mentioning

confidence: 99%

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Physico-chemical study of complexation of silver ion (Ag+) by macrocyclic molecules (hexa-Helicenes) based on statistical physics theory: new description of a cancer drug

Yahia

2020

Sci Rep

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In recent papers, it is found that the silver-[6]Helicene complex can be used as a cancer drug but the interaction silver-hexaHelicene has not yet proven. the idea of this paper is to investigate the complexation process of the [6]Helicene by the silver metal (Ag +) using three types of adsorbates. Indeed, the adsorption of silver chloride, silver nitrate and silver sulfide into the sensor films deposited on the QCM electrode are measured at three temperatures (293-333 K). Films of the [6]Helicene were deposited on the QcM resonators using spin coating method in order to obtain uniform and homogenous sensor surface. Experimental results indicated that the [6]Helicene can form a stable complex with the silver ion and that the Agcl is the appropriate adsorbate for the complexation achievement. Actually, an advanced modeling analysis by means of statistical physics adsorption models is applied to explore the new vision of the complextion system. the values of the models parameters are deduced from fitting the experimental data with the developed models. They result in confirming the experimental findings by comparing the complexation energies of the three examined systems. in particular, for the silver nitrate, the Van-der-Waals parameters explained the isotherms drop at high concentration through the lateral interactions between the adsorbates. the adsorption energies analysis showed the highest interaction AgCl-[6]Helicene. Density functional theory (DFT) simulations showed that chemical bonds take place during the adsorption of silver chloride on hexaHelicene which confirms that the [6]Helicene can function as a chiral molecular tweezer of the univalent cationic silver.

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Section: Development Of Advanced Modelsmentioning

confidence: 64%

Section: Statistical Physics Analysismentioning

confidence: 99%

mentioning

confidence: 99%

mentioning

confidence: 99%

mentioning

confidence: 99%

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Physico-chemical study of complexation of silver ion (Ag+) by macrocyclic molecules (hexa-Helicenes) based on statistical physics theory: new description of a cancer drug

Yahia

2020

Sci Rep

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A statistical physics–based physicochemical study of l-phenylalanine adsorption on activated carbon

Knani,

Wjihi,

Bouzid

et al. 2024

J Mol Model

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Calculation of adsorption isotherms by statistical physics models: a review

2021

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Adsorption is a major basic and applied phenomenon in many scientific disciplines. In particular, the design of adsorbents to remove pollutants from wastewater requires advanced knowledge of adsorption isotherms, which are useful tools to identify physicochemical factors that control adsorption performance. Recent modeling of adsorption isotherms has focused on the use of statistical physics. Here, we review the major adsorption isotherm models based on statistical physics. We discuss steric, energetic, and thermodynamic parameters.

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Adsorption of sodium and lithium ions onto helicenes molecules: Experiments and phenomenological modeling

Cited by 20 publications

References 52 publications

Physico-chemical study of complexation of silver ion (Ag+) by macrocyclic molecules (hexa-Helicenes) based on statistical physics theory: new description of a cancer drug

Physico-chemical study of complexation of silver ion (Ag+) by macrocyclic molecules (hexa-Helicenes) based on statistical physics theory: new description of a cancer drug

A statistical physics–based physicochemical study of l-phenylalanine adsorption on activated carbon

Calculation of adsorption isotherms by statistical physics models: a review

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