Surfactant-templated silica doped with 1-phenyl-3-methyl-4-stearoylpyrazol-5-one (HPMSP) as a new sorbent

Autor: Maurice Leroy, Anne Boos, Jean-Pierre Brunette, Amarawan Intasiri
Přispěvatelé: Institut Pluridisciplinaire Hubert Curien (IPHC), Université de Strasbourg (UNISTRA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)
Rok vydání: 2002
Předmět:
Zdroj: Journal of Materials Chemistry
Journal of Materials Chemistry, Royal Society of Chemistry, 2002, 12 (4), pp.886-889. ⟨10.1039/B110659G⟩
ISSN: 1364-5501
0959-9428
Popis: A new sorbent for transition elements was prepared in a one-step synthesis by encapsulation of a pyrazolone ligand in a surfactant-templated silica. This new material was characterized by X-ray diffraction (XRD), nitrogen physisorption and transmission electron microscopy (TEM). The material presents a lamellar symmetry with a pore diameter of 39 A. The use of a cationic surfactant allows a high loading of ligand (0.43 mol kg−1), associated with complete accessibility of the ligand to the aqueous phase. A sorption capacity of 0.2 mol kg−1 was observed for copper ions in a NaNO3 0.01 M medium. Complete elution of copper species is possible with HNO3 1 M.
Databáze: OpenAIRE