Interaction of ammonium with birnessite: Evidence of a chemical and structural transformation in alkaline aqueous medium
| Autor: | Christelle Despas, Hella Boumaiza, Christian Ruby, Romain Coustel, Latifa Bergaoui |
|---|---|
| Přispěvatelé: | Laboratoire de Chimie Physique et Microbiologie pour l'Environnement (LCPME), Université de Lorraine (UL)-Centre National de la Recherche Scientifique (CNRS)-Institut de Chimie du CNRS (INC), Laboratoire de Chimie des Matériaux et Catalyse, Faculté des Sciences Mathématiques, Physiques et Naturelles de Tunis (FST), Université de Tunis El Manar (UTM)-Université de Tunis El Manar (UTM)-Département de Chimie, Département de Génie Biologique et Chimique, Institut National des Sciences Appliquées et de Technologie (INSAT), Département de Génie Biologique et Chimique, (INSAT), Institut National des Sciences Appliquées et de Technologie [Tunis] (INSAT) |
| Jazyk: | angličtina |
| Rok vydání: | 2018 |
| Předmět: |
Birnessite
010504 meteorology & atmospheric sciences Inorganic chemistry chemistry.chemical_element FOS: Physical sciences 010501 environmental sciences 01 natural sciences Inorganic Chemistry chemistry.chemical_compound X-ray photoelectron spectroscopy Oxidation state Materials Chemistry Cation-exchange capacity [CHIM]Chemical Sciences Ammonium Physical and Theoretical Chemistry ComputingMilieux_MISCELLANEOUS 0105 earth and related environmental sciences [PHYS]Physics [physics] Condensed Matter - Materials Science Aqueous solution Chemistry Materials Science (cond-mat.mtrl-sci) Condensed Matter Physics Nitrogen Electronic Optical and Magnetic Materials Solid nitrogen [SDE]Environmental Sciences Ceramics and Composites |
| Zdroj: | Journal of Solid State Chemistry Journal of Solid State Chemistry, Elsevier, 2018, 258, pp.543-550. ⟨10.1016/j.jssc.2017.11.025⟩ |
| ISSN: | 0022-4596 1095-726X |
| DOI: | 10.1016/j.jssc.2017.11.025⟩ |
| Popis: | The ammonium cation interaction with Na-birnessite in aqueous alkaline medium was studied. Solution and solid analysis give evidence that birnessite is not only acting as a cationic exchanger toward NH4+. The surface analysis performed by XPS showed that N1s spectra are characterized by the existence of two different environments: one assignable to an interlayer NH4+ and the second to a chemisorbed N-species. Structural and chemical transformations were observed on birnessite with nitrogen mass balance deficit. The monitoring of NH4+, Na+, Mn2+, NO3- and NO2- and solid changes (average oxidation state of Mn, cation exchange capacity, solid nitrogen content and symmetry evolution identified by XRD and FTIR) indicate unambiguously that NH4+ reacts chemically with the birnessite. |
| Databáze: | OpenAIRE |
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