Magnetic Nanoparticles for Photocatalytic Ozonation of Organic Pollutants

• Tipo: Artigo em Revista Científica Internacional
• Data: 2019

Autores

Carla A. Orge (Autor) FEUP; Olívia Salomé G. P. Soares (Autor) FEUP; Patrícia S. F. Ramalho (Autor) Outra; Manuel Fernando R. Pereira (Autor) FEUP; Joaquim L. Faria (Autor) FEUP

Revista

Título: Catalysts

Vol. 9 Nº 9

Páginas: 1-14

ISSN: 2073-4344

Editora: MDPI

Indexação

ISI Web of Knowledge - 6 Citações

Scopus - 7 Citações

Outras Informações

ID Authenticus: P-00Q-ZAT

DOI: 10.3390/catal9090703

Abstract (EN): Magnetic nanoparticles (MNP) composed of iron oxide (or other metal-FeO cores) coated with carbon produced by chemical vapour decomposition (CVD) were used in the photocatalytic ozonation of oxamic acid (OMA) which we selected as a model pollutant. The incorporation of Ag and Cu on FeO enhanced the efficiency of the process. The carbon phase significantly increased the photocatalytic activity towards the conversion of OMA. As for the synthesis process, raising the temperature of CVD improved the performance of the produced photocatalysts. The obtained results suggested that the carbon phase is directly related to high catalytic activity. The most active photocatalyst (C@FeO_CVD850) was used in the removal of other compounds (dyes, industrial pollutants and herbicides) from water and high mineralization levels were attained. This material was also revealed to be stable during reutilisation.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 14