Degradation of Toluene from Gas Streams by Heterogeneous Fenton Oxidation in a Slurry Bubble Reactor with Activated Carbon-Based Catalysts

• Tipo: Artigo em Revista Científica Internacional
• Data: 2022

Autores

Luis Madeira (Autor) FEUP; Emanuel F.S. Sampaio (Autor) FEUP; V. Guimarães (Autor) Outra; O.S.G.P. Soares (Autor) FEUP; Manuel Fernando R Pereira (Autor) FEUP; Carmen Rodrigues (Autor) FEUP

Revista

Título: Nanomaterials

Vol. 1206

Páginas: 3274-3274

ISSN: 2079-4991

Editora: MDPI

Indexação

ISI Web of Knowledge - 0 Citações

ISI Web of Science

Scopus - 0 Citações

Outras Informações

ID Authenticus: P-00X-74F

DOI: 10.3390/nano12193274

Abstract (EN): A novel approach for the treatment of volatile organic compounds from gaseous streams was developed. In order to accomplish this, a semi-batch bubble reactor was used, aiming to assess the toluene (selected as model compound) degradation from gaseous streams via heterogeneous Fenton oxidation. Activated carbon-based catalysts-metal-free or iron-impregnated-with different textural and chemical surface properties were used for the first time as catalysts, in order to degrade gaseous toluene using such technology. Complementary characterization techniques, such as nitrogen adsorption at -196 degrees C, elemental analysis, pH at the point of zero charge (pH(PZC)), inductively coupled plasma optical emission spectrometry (ICP-OES) and transmission electron microscopy (TEM), were used. The materials' chemical surface properties, particularly the presence of N-surface groups, were herein found to play an important role in toluene adsorption and catalytic performance. The maximum amount of toluene transferred, 6.39 x 10(-3) mol, was achieved using melamine-doped activated carbon (N-doped material) that was impregnated with iron (sample herein called ACM-Fe). This iron-based catalyst was found to be quite stable during three reutilization cycles.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 21