Structured TiO(2) based catalysts for clean water technologies

• Tipo: Artigo em Livro de Atas de Conferência Internacional
• Data: 2006

Autores

Claudia G Silva (Autor) FEUP; Wendong D Wang (Autor) Outra; Parasuraman Selvam (Autor) Outra; Sudhir Dapurkar (Autor) Outra; Joaquim L Faria (Autor) FEUP

Ata de Conferência Internacional

Título: SCIENTIFIC BASES FOR THE PREPARATION OF HETEROGENEOUS CATALYSTS, PROCEEDINGS OF THE 9TH INTERNATIONAL SYMPOSIUM

Páginas: 151-158

9th International Symposium on the Scientific Bases for the Preparation of Heterogeneous Catalysts

Louvain-la-Neuve, BELGIUM, SEP 10-14, 2006

Indexação

ISI Web of Knowledge - 3 Citações

Scopus - 4 Citações

Classificação Científica

FOS: Ciências exactas e naturais > Química

Outras Informações

ID Authenticus: P-004-QR3

DOI: 10.1016/s0167-2991(06)80902-x

Abstract (EN): In the present study, TiO(2) prepared by an acid-catalyzed sol-gel method was combined with several materials including, activated carbon (AC), activated carbon fibber (ACF), multi-walled carbon nanotubes (MWNT), MCM-41, MCM-48 and zeolite Na-Y. The preparation technique was developed in a way that parameters such as homogeneity, purity, microstructure and sintering temperature, could be fine tuned to produce the desired final composite. Material characterization was performed using thermogravimetric analysis, N(2) adsorption-desorption isotherm measurements, X-Ray diffraction, scanning electron microscopy, diffuse reflectance infrared and UV-Vis spectroscopy. The photocatalytic degradation of phenol was chosen as a model reaction to evaluate the photocatalytic activities of the composite catalysts under ultraviolet radiation (253.7 nm). A synergetic effect is observed for the carbon-TiO(2) composite catalysts leading to efficient phenol conversion and TOC abatement in the photocatalytic process.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 8