The role of multiwalled carbon nanotubes (MWCNTs) in the catalytic ozonation of atrazine

• Tipo: Artigo em Revista Científica Internacional
• Data: 2014

Autores

Xiaolei Fan (Autor) Outra; João Restivo (Autor) FEUP; José J. M. Órfão (Autor) FEUP; Manuel Fernando R. Pereira (Autor) FEUP; Alexei A. Lapkin (Autor) Outra

Revista

Título: Chemical Engineering Journal

Vol. 241

Páginas: 66-76

ISSN: 1385-8947

Editora: Elsevier

Indexação

ISI Web of Knowledge - 56 Citações

ISI Web of Science

Scopus - 55 Citações

INSPEC

Classificação Científica

FOS: Ciências da engenharia e tecnologias

CORDIS: Ciências Tecnológicas > Engenharia

Projetos Associados

LA 20 - PROJECTO ESTRATÉGICO - LA 20 - 2013-2014

FREECATS - Doped carbon nanostructures as metal-free catalysts

Outras Informações

ID Authenticus: P-008-Z6D

DOI: 10.1016/j.cej.2013.12.023

Abstract (EN): Multiwalled carbon nanotubes (MWCNTs) are used as catalysts in ozonation of atrazine in aqueous solutions. The catalyst changed the distribution of atrazine degradation intermediates, leading to the decrease in the effluent toxicity compared to non-catalytic ozonation and an increase in the overall mineralisation of atrazine. However, the overall rate of atrazine conversion was somewhat reduced in the presence of the nanotube catalyst (apparent rate constant: 0.233 min(-1) versus 0.143 min(-1) in the presence of the nanotubes). Detailed analysis of intermediates in catalysed and non-catalysed reactions allowed to propose the likely reaction pathway in the presence of the nanotubes.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 11