Interpretation of the adsorption of metals on quartz crystal based-macromolecule via advanced modeling of equilibrium isotherms

Abstract In this article, new insights about the metals-porphyrin complexes are proved by analyzing the zinc, nickel and chromium adsorption process over the well-known porphyrin macromolecule. The use of the quartz crystal microbalance (QCM) apparatus allows the control of the complexation systems’...

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Autores principales:	Fatma Aouaini, Mohamed Ben Yahia, Haifa I. Alrebdi, Miysoon A. Alothman
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/37d6732ad7354d9da4fd8cd2949f6daf
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spelling	oai:doaj.org-article:37d6732ad7354d9da4fd8cd2949f6daf2021-12-02T18:08:46ZInterpretation of the adsorption of metals on quartz crystal based-macromolecule via advanced modeling of equilibrium isotherms10.1038/s41598-021-99465-92045-2322https://doaj.org/article/37d6732ad7354d9da4fd8cd2949f6daf2021-10-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-99465-9https://doaj.org/toc/2045-2322Abstract In this article, new insights about the metals-porphyrin complexes are proved by analyzing the zinc, nickel and chromium adsorption process over the well-known porphyrin macromolecule. The use of the quartz crystal microbalance (QCM) apparatus allows the control of the complexation systems’ experimental adsorption data operating at four temperatures. The experimental results and the physical models reveal that the zinc and nickel complexation processes are to be examined using the mono layer adsorption model. While, the double layer model describes the interaction between the chromium compound and the porphyrin. Actually, the three metals are shown to be adsorbed by a multi-docking process in the physicochemical description. The endothermic character of the investigated processes is shown through the appropriate data of the principal parameter adsorbent sites’ density. Hence, several porphyrin sites are exclusively stimulated at high temperature. The parameters of van del Waals, depicting the influences of the lateral interactions, explain the nickel isotherms down trend. The chemical bonds are shown to be carried out between the zinc and the porphyrin through the calculated adsorption energies. Considering the thermodynamic study, and referring to the configurational entropy and the free enthalpy, it is to be noted that the disorder peak of the three mechanisms is reached when the equilibrium concentration is equal to the energetic parameters’ values for each system. The nickel enthalpy revealed for high concentration that the adsorbates’ lateral interactions disapproved the nickel chloride adsorption. The free enthalpy trends, that observed two stability states of the chromium compound, confirmed the chromium double layer mechanism.Fatma AouainiMohamed Ben YahiaHaifa I. AlrebdiMiysoon A. AlothmanNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-15 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Fatma Aouaini Mohamed Ben Yahia Haifa I. Alrebdi Miysoon A. Alothman Interpretation of the adsorption of metals on quartz crystal based-macromolecule via advanced modeling of equilibrium isotherms
description	Abstract In this article, new insights about the metals-porphyrin complexes are proved by analyzing the zinc, nickel and chromium adsorption process over the well-known porphyrin macromolecule. The use of the quartz crystal microbalance (QCM) apparatus allows the control of the complexation systems’ experimental adsorption data operating at four temperatures. The experimental results and the physical models reveal that the zinc and nickel complexation processes are to be examined using the mono layer adsorption model. While, the double layer model describes the interaction between the chromium compound and the porphyrin. Actually, the three metals are shown to be adsorbed by a multi-docking process in the physicochemical description. The endothermic character of the investigated processes is shown through the appropriate data of the principal parameter adsorbent sites’ density. Hence, several porphyrin sites are exclusively stimulated at high temperature. The parameters of van del Waals, depicting the influences of the lateral interactions, explain the nickel isotherms down trend. The chemical bonds are shown to be carried out between the zinc and the porphyrin through the calculated adsorption energies. Considering the thermodynamic study, and referring to the configurational entropy and the free enthalpy, it is to be noted that the disorder peak of the three mechanisms is reached when the equilibrium concentration is equal to the energetic parameters’ values for each system. The nickel enthalpy revealed for high concentration that the adsorbates’ lateral interactions disapproved the nickel chloride adsorption. The free enthalpy trends, that observed two stability states of the chromium compound, confirmed the chromium double layer mechanism.
format	article
author	Fatma Aouaini Mohamed Ben Yahia Haifa I. Alrebdi Miysoon A. Alothman
author_facet	Fatma Aouaini Mohamed Ben Yahia Haifa I. Alrebdi Miysoon A. Alothman
author_sort	Fatma Aouaini
title	Interpretation of the adsorption of metals on quartz crystal based-macromolecule via advanced modeling of equilibrium isotherms
title_short	Interpretation of the adsorption of metals on quartz crystal based-macromolecule via advanced modeling of equilibrium isotherms
title_full	Interpretation of the adsorption of metals on quartz crystal based-macromolecule via advanced modeling of equilibrium isotherms
title_fullStr	Interpretation of the adsorption of metals on quartz crystal based-macromolecule via advanced modeling of equilibrium isotherms
title_full_unstemmed	Interpretation of the adsorption of metals on quartz crystal based-macromolecule via advanced modeling of equilibrium isotherms
title_sort	interpretation of the adsorption of metals on quartz crystal based-macromolecule via advanced modeling of equilibrium isotherms
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/37d6732ad7354d9da4fd8cd2949f6daf
work_keys_str_mv	AT fatmaaouaini interpretationoftheadsorptionofmetalsonquartzcrystalbasedmacromoleculeviaadvancedmodelingofequilibriumisotherms AT mohamedbenyahia interpretationoftheadsorptionofmetalsonquartzcrystalbasedmacromoleculeviaadvancedmodelingofequilibriumisotherms AT haifaialrebdi interpretationoftheadsorptionofmetalsonquartzcrystalbasedmacromoleculeviaadvancedmodelingofequilibriumisotherms AT miysoonaalothman interpretationoftheadsorptionofmetalsonquartzcrystalbasedmacromoleculeviaadvancedmodelingofequilibriumisotherms
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Interpretation of the adsorption of metals on quartz crystal based-macromolecule via advanced modeling of equilibrium isotherms

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