Thiabendazole adsorption on montmorillonite, octadecyltrimethylammonium- and Acremonium sp.-loaded products and their copper complexes

dc.creatorGamba, Martina
dc.creatorOlivelli, Melisa
dc.creatorLázaro Martínez, Juan M.
dc.creatorGaddi, Gisela Marina
dc.creatorCurutchet, Gustavo
dc.creatorTorres Sánchez, Rosa María
dc.date2017
dc.date2021-05-28T17:47:09Z
dc.date.accessioned2023-07-15T01:52:12Z
dc.date.available2023-07-15T01:52:12Z
dc.identifierhttp://sedici.unlp.edu.ar/handle/10915/119450
dc.identifierissn:1385-8947
dc.identifier.urihttps://repositorioslatinoamericanos.uchile.cl/handle/2250/7459908
dc.descriptionThis study is a preliminary approach to develop novel montmorillonite (Mt) based adsorbents for removing inorganic and organic contaminants in a step-like process. Biomass (fungi) and surfactant (octadecyltrimethylammonium bromide) modified montmorillonites (BMt and OMt, respectively) were obtained. In a prior step, Cu2+ was loaded into Mt, BMt and OMt. In a second step, the materials (Mt, Mt-Cu, BMt, BMt-Cu, OMt, OMt-Cu) were used as thiabendazole (TBZ) adsorbents. TBZ adsorption isotherms were performed, and Langmuir, Freundlich and Langmuir-Freundlich mathematical models were evaluated. TBZ removal efficiency of the materials was also tested using three adsorbent dosages. The adsorbents and TBZ-adsorbed products were characterized by X-ray diffraction and thermal analysis, and by electron paramagnetic resonance (EPR) and solid-state nuclear magnetic resonance measurements (ss-NMR). To determine the subsequent arrangement of the adsorption products, leaching experiments were also conducted. In the BMt sample, TBZ adsorption was enhanced compared to the raw Mt sample. An opposite behaviour was observed for OMt samples. All the Cu2+-loaded materials showed better TBZ removal efficiencies than the same materials without Cu2+. Furthermore, Cu2+ chelation through the imidazolic and thiazolic nitrogen atoms of TBZ in all Cu2+-loaded samples allowed TBZ and Cu2+ to be resistant to migration in environmental leaching conditions.
dc.descriptionCentro de Tecnología de Recursos Minerales y Cerámica
dc.formatapplication/pdf
dc.format11-21
dc.languageen
dc.rightshttp://creativecommons.org/licenses/by-nc-sa/4.0/
dc.rightsCreative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)
dc.subjectQuímica
dc.subjectMontmorillonite
dc.subjectOrgano-montmorillonite
dc.subjectBio-montmorillonite
dc.subjectThiabendazole-Cu2+ complex
dc.subjectAdsorption
dc.titleThiabendazole adsorption on montmorillonite, octadecyltrimethylammonium- and Acremonium sp.-loaded products and their copper complexes
dc.typeArticulo
dc.typeArticulo


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