Details zur Publikation

Referenztyp Zeitschriften
DOI / URL Link
Titel (primär) Adsorption of perfluorocarboxylic acids at the silica surface
Autor Shafique, U.; Dorn, V.; Paschke, A.; Schüürmann, G.;
Journal / Serie Chemical Communications
Erscheinungsjahr 2017
Department OEC;
Band/Volume 53
Sprache englisch;
POF III (gesamt) T42;
UFZ Querschnittsthemen RU3;
Abstract

Water molecules may force the hydrophobic perfluoroalkyl chain of perfluorocarboxylic acids (PFCAs) to aggregate at hydrophobic siloxane patches ([triple bond, length as m-dash]Si–O–Si[triple bond, length as m-dash]) of the silica surface despite electrostatic repulsion between surface silanol ([triple bond, length as m-dash]SiO) and the carboxylate (–COO) headgroup of PFCA. Acidic pH and background cations promote the adsorption further by reducing the anion–anion Coulomb repulsion.

ID 18221
dauerhafte UFZ-Verlinkung https://www.ufz.de/index.php?en=20939&ufzPublicationIdentifier=18221
Shafique, U., Dorn, V., Paschke, A., Schüürmann, G. (2017):
Adsorption of perfluorocarboxylic acids at the silica surface
Chem. Commun. 53 , 589 - 592