Producción Científica Profesorado

Removal and confinement of Hg(II) by polyurethane foam functionalized with potassium O-ethyldithiocarbonate



Galan Vidal, Carlos Andres

2019

Flores-Aguilar, J.F., Galán-Vidal, C.A., Rodríguez, J.A, Alvarado-Rodriguez, J.G, Paez-Hernandez, M.E.Removal and confinement of Hg(II) by polyurethane foam functionalized with potassium O-ethyldithiocarbonate.l. Int. J. Environ. Sci. Technol. (2019), 16, 1005-1014. https://doi.org/10.1007/s13762-018-1723-x


Abstract


Polyurethane foam functionalized with potassium O-ethyldithiocarbonate was evaluated as an extractant material for Hg(II). Several parameters such as pH, mass amount and extraction time were studied. Under the best conditions, a 86% of mercury extraction was achieved. Dubinin?Radushkevich isotherm model indicated that the nature of interaction between functionalized foam and Hg(II) is chemical. Regarding interferents, metallic ions Ag(I) and Sn(IV) have a significant influence on the Hg extraction percentage. In the case of silver, it had a synergistic effect increasing the percentage of mercury due to a metallophilic interaction. Also, once the mercury was extracted, its leaching from the functionalized polyurethane foam was evaluated by means of two sequential extraction procedures. In this way, the functionalized foam emerges as a good material for the removal and confinement of chemical species. Obtained results show that mercury extraction is successful even from complex solution and that mercury-foam material is stable under extreme chemical and temperature conditions.



Producto de Investigación




Artículos relacionados

Effect of TiO2-Al2O3 sol-gel supports on the superficial Ni and Mo species in oxidized and sulfided ...

THEORETICAL STUDY ON THE MODIFICATION OF ACTIVE SITES IN GOLD SURFACES MODELED AS FINITE CLUSTERS: I...

Revisión de variables de diseño y condiciones de operación en la electrocoagulación

Influence of the Crystallinity of the Substrate on Kinetic Parameters of Zinc Electrodeposition Proc...

Electrochemical kinetic study about cobalt electrodeposition onto GCE and HOPG substrates from sulfa...

The role of temperature in copper electrocrystallization in ammoniachloride solutions

Potentiometric behavior of graphite-epoxy electrochemical transducers towards anions, cations and pH...

Influence of the Cation Nature of the Sulphate Salt on the Electrochemical Synthesis of Sulfate-Dope...

Kinetic study of the cobalt electrodeposition onto glassy carbon electrode from ammonium sulfate sol...

Zinc Electrodeposition from Chloride Solutions onto Glassy Carbon Electrode