Ozonation of sulfamethoxazole promoted by MWCNT

• Tipo: Artigo em Revista Científica Internacional
• Data: 2013

Autores

Alexandra Gonçalves (Autor) FEUP; José Melo Orfão (Autor) FEUP; Manuel Fernando R Pereira (Autor) FEUP

Revista

Título: Catalysis Communications

Vol. 35

Páginas: 82-87

ISSN: 1566-7367

Editora: Elsevier

Indexação

ISI Web of Knowledge - 28 Citações

ISI Web of Science

Scopus - 37 Citações

Classificação Científica

FOS: Ciências da engenharia e tecnologias

Outras Informações

ID Authenticus: P-005-0T6

DOI: 10.1016/j.catcom.2013.02.012

Abstract (EN): Multi-walled carbon nanotubes (MWCNTs) with different surface chemical properties were prepared by oxidative and thermal treatments. Samples were characterized by nitrogen adsorption, temperature programmed desorption and pH at the point of zero charge. These catalysts were tested in the ozonation of sulfamethoxazole. Complete conversion of this compound was achieved after approximately 30 min. MWCNTs significantly enhanced the mineralization degree compared to single ozonation. Some oxidation products were quantified. The catalytic process is favored by MWCNTs with basic or neutral properties. Successive experimental runs of SMX degradation show that the catalysts suffer some deactivation.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 6