Magnetic Nanoparticles for Photocatalytic Ozonation of Organic Pollutants

• Type: Article in International Scientific Journal
• Date: 2019

Authors

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

Journal

Title: Catalysts

Vol. 9 No. 9

Pages: 1-14

ISSN: 2073-4344

Publisher: MDPI

Indexing

ISI Web of Knowledge - 6 Citations

Scopus - 7 Citations

Other information

Authenticus ID: 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.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 14