Catalytic wet peroxide oxidation: a route towards the application of hybrid magnetic carbon nanocomposites for the degradation of organic pollutants. A review

• Type: Article in International Scientific Journal
• Date: 2016

Authors

Rui S. Ribeiro (Author) FEUP; Adrián M. T. Silva (Author) FEUP; José L. Figueiredo (Author) FEUP; Joaquim L. Faria (Author) FEUP; Helder T. Gomes (Author) FEUP

Journal

Title: Applied Catalysis B: Environmental

Vol. 187

Pages: 428-460

ISSN: 0926-3373

Publisher: Elsevier

Indexing

ISI Web of Knowledge - 58 Citations

Scopus - 106 Citations

Associated Projects

LSRE-LCM - Laboratório de Processos de Separação e Reação - Laboratório de Catálise e Materiais

Other information

Authenticus ID: P-00K-4SE

DOI: 10.1016/j.apcatb.2016.01.033

Abstract (EN): Several motivations have prompted the scientific community towards the application of hybrid magnetic carbon nanocomposites in catalytic wet peroxide oxidation (CWPO) processes. The most relevant literature on this topic is reviewed, with a special focus on the synergies that can arise from the combination of highly active and magnetically separable iron species with the easily tuned properties of carbon-based materials. These are mainly ascribed to increased adsorptive interactions, to good structural stability and low leaching levels of the metal species, and to increased regeneration and dispersion of the active sites, which are promoted by the presence of the carbon-based materials in the composites. The most significant features of carbon materials that may be further explored in the design of improved hybrid magnetic catalysts are also addressed, taking into consideration the experimental knowledge gathered by the authors in their studies and development of carbon-based catalysts for CWPO. The presence of stable metal impurities, basic active sites and sulphur-containing functionalities, as well as high specific surface area, adequate porous texture, adsorptive interactions and structural defects, are shown to increase the activity of carbon materials when applied in CWPO, while the presence of acidic oxygen-containing functionalities has the opposite effect.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 33