Novel catalytic membranes were developed by coupling low-temperature plasma treatments with the chemical immobilization of W-based catalysts. Poly(vinylidene fluoride) membranes were pre-treated with Ar, and then treated with NH3 RF glow discharges in order to obtain a surface rich in amino groups, which are suitable anchor sites for the immobilization of tungsten-based heterogeneous catalysts. In particular, (WO42-), we have focused our interest on tungstate ions 4 which catalyze the oxidation of secondary amines to nitrones, and on decatungstate (W10O324-) and phospho tungstate (W12PO403-) ions, which can both be used as catalysts for the degradation of organic pollutants such as phenol.

Immobilization of tungsten catalysts on plasma modified membranes

FAVIA, Pietro;
2007-01-01

Abstract

Novel catalytic membranes were developed by coupling low-temperature plasma treatments with the chemical immobilization of W-based catalysts. Poly(vinylidene fluoride) membranes were pre-treated with Ar, and then treated with NH3 RF glow discharges in order to obtain a surface rich in amino groups, which are suitable anchor sites for the immobilization of tungsten-based heterogeneous catalysts. In particular, (WO42-), we have focused our interest on tungstate ions 4 which catalyze the oxidation of secondary amines to nitrones, and on decatungstate (W10O324-) and phospho tungstate (W12PO403-) ions, which can both be used as catalysts for the degradation of organic pollutants such as phenol.
File in questo prodotto:
Non ci sono file associati a questo prodotto.

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11586/49233
 Attenzione

Attenzione! I dati visualizzati non sono stati sottoposti a validazione da parte dell'ateneo

Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 8
  • ???jsp.display-item.citation.isi??? 8
social impact