Título
Detection of Cr(III), prometryn, and ibuprofen by hybrid Eu(III)–dipicolinate kaolinite luminescent sensor
Autor(es)
Palabras clave
Kaolinite
Lanthanide complexes
Eu(III) luminescence
Metallic pollutants
Organic pollutants
Pollutants detection
Clasificación UNESCO
Fecha de publicación
2022
Editor
Elsevier
Citación
Clementino, F. C., Peixoto, V. G., De Araújo, D. T., Ciuffi, K. J., Nassar, E. J., Vicente, M. A., Rives, V., & De Faria, E. H. (2022). Detection of Cr(III), prometryn, and ibuprofen by hybrid Eu(III)–dipicolinate kaolinite luminescent sensor. Applied Clay Science, 227, 106591. https://doi.org/10.1016/j.clay.2022.106591
Resumen
[EN] Europium (III) was complexed on solids prepared by kaolinite functionalization with pyridine 2–carboxylic and
pyridine 2,6–dicarboxylic acids; the luminescent properties of the obtained solids were analyzed for evaluating
their application as luminescent sensors of prometryn, ibuprofen and chromium (III). The luminescent hybrid
materials were characterized through powder X–ray diffraction, infrared absorption spectroscopy, thermal
analysis, scanning electron microscopy, ultraviolet/visible absorption spectroscopy, energy dispersion and
photoluminescence spectroscopy (excitation and emission) and lifetime measurements of the excited state. The
materials proved to be promising, with quantum efficiencies of 31.16% and 45.18% for the samples functionalized with picolinic and dipicolinic acids, respectively. For the contaminant adsorption tests, the solid with
picolinic acid showed better detection efficiency in a lower concentration range for chromium (III) than solids
with dipicolinic acid, while both showed similar ranges for the organic contaminants.
URI
ISSN
0169-1317
DOI
10.1016/j.clay.2022.106591
Versión del editor
Aparece en las colecciones
Patrocinador
Publicación en abierto financiada por la Universidad de Salamanca como participante en el Acuerdo Transformativo CRUE-CSIC con Elsevier, 2021-2024
