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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Inorganic-organic hybrids based on sepiolite as efficient adsorbents of caffeine and glyphosate pollutants

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Author(s):
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Baldan, Jr., Hugo [1] ; da Silva, Evane [1] ; Saltarelli, Michelle [1] ; Crispim, Denise [1] ; Nassar, Eduardo J. [1] ; Trujillano, Raquel [2] ; Rives, Vicente [2] ; Vicente, Miguel A. [2] ; Gil, Antonio [3] ; Korili, Sophia A. [3] ; de Faria, Emerson H. [1] ; Ciuffi, Katia J. [1]
Total Authors: 12
Affiliation:
[1] Univ Franca, Av Dr Armando Salles Oliveira 201, Pq Univ, BR-14404600 Franca, SP - Brazil
[2] Univ Salamanca, Fac Ciencias Quim, Dept Quim Inorgan, GIR QUESCAT, Salamanca 37008 - Spain
[3] Univ Publ Navarra, Dept Ciencias, INAMAT 2, Edificio Acebos, Campus Arrosadia, Pamplona 31006 - Spain
Total Affiliations: 3
Document type: Journal article
Source: APPLIED SURFACE SCIENCE ADVANCES; v. 1, n. SI NOV 1 2020.
Web of Science Citations: 2
Abstract

Sepiolite clay mineral was functionalized with (3-chloropropyl)triethoxysilane (ClPTES) or 3-{[}tri(ethoxy/methoxy)silyl] propylurea (TEMSPU) alkoxides and tested as adsorbent for herbicide glyphosate and also of caffeine, two pollutants with very different chemical composition. The materials obtained were characterized by X-ray diffractometry, infrared spectroscopy, thermal analysis, scanning electron microscopy and nitrogen adsorption at -196 degrees C, and submitted to toxicity and desorption tests. Silane functional groups blocked sepiolite active positions, and adsorption occurred within the zeolitic channels and on the surface of the functionalized solids. Caffeine and glyphosate effectively interacted with urea groups from grafted alkoxide, which could lower the mobility of the adsorbed contaminants. Glyphosate adsorbed on functionalized sepiolite derivatives showed low toxicity. (AU)

FAPESP's process: 05/00720-7 - Synthesis, characterization and catalytic activity of biomimetic and non-biomimetic systems, in hydrocarbon oxidation, using hydrogen peroxide as oxidant
Grantee:Katia Jorge Ciuffi Pires
Support type: Regular Research Grants
FAPESP's process: 17/15482-1 - Novel strategies synthesis to reuse Tanner industry by-products to obtain high-value functional porous materials
Grantee:Emerson Henrique de Faria
Support type: Regular Research Grants
FAPESP's process: 18/26569-3 - Biohybrid materials (kaolinite-amino acids) as luminescent sensors for organic emmerging pollutants.
Grantee:Denis Talarico de Araujo
Support type: Scholarships abroad - Research Internship - Doctorate
FAPESP's process: 16/01501-1 - Multifunctional catalysts for advanced oxidation processes employing biogenic matrices or clays
Grantee:Katia Jorge Ciuffi Pires
Support type: Regular Research Grants
FAPESP's process: 12/11673-3 - Thin films obtained by spin and dip-coating using sol-gel methodology
Grantee:Eduardo José Nassar
Support type: Regular Research Grants
FAPESP's process: 13/19523-3 - Functional Biohybrid materials based on layered and/or fibrous natural clays with multifaceted applications
Grantee:Emerson Henrique de Faria
Support type: Regular Research Grants
FAPESP's process: 11/03335-8 - Ironporphyrins as catalysts in oxidation reaction of cyclohexane and Baeyer-Villeger: heterogeneous systems
Grantee:Katia Jorge Ciuffi Pires
Support type: Regular Research Grants