Academic Journal
Adsorption modeling of Cu(II) and Pb(II) onto humin extracted from a peat soil
| العنوان: | Adsorption modeling of Cu(II) and Pb(II) onto humin extracted from a peat soil |
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| المؤلفون: | Nguyen-Phuong, Quynh, Ponthieu, Marie, Sayen, Stéphanie, Marin, B., Guillon, Emmanuel |
| المساهمون: | Groupe d'Étude sur les Géomatériaux et Environnements Naturels, Anthropiques et Archéologiques - EA 3795 (GEGENAA), Université de Reims Champagne-Ardenne (URCA)-Institut national de recherches archéologiques préventives (Inrap)-Maison des Sciences Humaines de Champagne-Ardenne (MSH-URCA), Université de Reims Champagne-Ardenne (URCA)-Université de Reims Champagne-Ardenne (URCA), Institut de Chimie Moléculaire de Reims - UMR 7312 (ICMR), Université de Reims Champagne-Ardenne (URCA)-Institut de Chimie - CNRS Chimie (INC-CNRS)-SFR CAP Santé (Champagne-Ardenne Picardie Santé), Université de Reims Champagne-Ardenne (URCA)-Université de Reims Champagne-Ardenne (URCA)-Centre National de la Recherche Scientifique (CNRS)-SFR Condorcet, Université de Reims Champagne-Ardenne (URCA)-Centre National de la Recherche Scientifique (CNRS)-Université de Reims Champagne-Ardenne (URCA)-Centre National de la Recherche Scientifique (CNRS) |
| المصدر: | ISSN: 1439-0108. |
| بيانات النشر: | HAL CCSD Springer Verlag |
| سنة النشر: | 2023 |
| المجموعة: | Université de Reims Champagne-Ardenne: Archives Ouvertes (HAL) |
| مصطلحات موضوعية: | Organic matter, Humic substances, Metal cation, Sorption, 13C CP/MAS NMR spectroscopy, Surface complexation model, [SDU.STU.GC]Sciences of the Universe [physics]/Earth Sciences/Geochemistry, [CHIM]Chemical Sciences |
| الوصف: | International audience ; Purpose : Humin, which is the insoluble part of humic substances, plays an important role in regulating the behavior and fateof metallic trace elements at the soil/water interface. However, compared to the two other fractions of humic substances,humic and fulvic acids, humin has been the least studied due to its insolubility and difficulties in purification.Materials and methods : In this study, humin was extracted from a peat soil following the International Humic SubstancesSociety (IHSS) protocol. The adsorption behavior of copper(II) and lead(II) onto humin as a function of pH was studied atdifferent solid charges and metallic cation concentrations and was described by the NICA–Donnan model. The proportionof the two types of functional groups considered in this model, carboxylic and phenolic groups, was determined by crosspolarization/magic angle spinning solid-state 13 C nuclear magnetic resonance spectroscopy ( 13 C CP/MAS NMR).Results and discussion : The NICA–Donnan model was applied to describe the adsorption of copper(II) and lead(II) ontohumin using generic parameters previously defined for humic acids with only few parameter adjustments. This approachallowed a good description of experimental adsorption data at the different tested conditions with the main involvement ofcarboxylic moieties in the metallic cation adsorption.Conclusion : This study highlights the reactivity of humin, an important fraction of soil organic matter little studied until now,toward copper(II) and lead(II) and proposes, for the first time, a simple and pertinent approach using the NICA–Donnanmodel to successfully describe and predict the binding of these two metallic cations onto humin. |
| نوع الوثيقة: | article in journal/newspaper |
| اللغة: | English |
| Relation: | hal-04283806; https://hal.univ-reims.fr/hal-04283806 |
| DOI: | 10.1007/s11368-023-03670-0 |
| الاتاحة: | https://hal.univ-reims.fr/hal-04283806 https://doi.org/10.1007/s11368-023-03670-0 |
| رقم الانضمام: | edsbas.F62EE5EE |
| قاعدة البيانات: | BASE |
| DOI: | 10.1007/s11368-023-03670-0 |
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