Carbon nanotubes as catalysts for wet peroxide oxidation: structure-reactivity relationships

• Tipo: Artigo em Livro de Atas de Conferência Internacional
• Data: 2015

Autores

Ribeiro, Rui (Autor) Outra; Martin-Martinez, Maria (Autor) Outra; Machado, Bruno (Autor) Outra; Serp, Philippe (Autor) Outra; Morales-Torres, Sergio (Autor) Outra; Silva, Adrian (Autor) FEUP; Figueiredo, José (Autor) Outra; Faria, Joaquim (Autor) Outra; Gomes, Helder (Autor) Outra

Ata de Conferência Internacional

Título: European Conference on Environment Applications of Advanced Processes

Outras Informações

ID Authenticus: P-011-1XN

Abstract (EN): Magnetic neat and N-doped carbon nanotubes with different properties have been synthesized by chemical vapour deposiüon and tested in the catalytic wet peroxide oxidation of 4-nitrophenol solutions (5 g L') at relatively mild operating conditions (atmospheric pressure, T = 50 °C, pH = 3)~using a catalyst load = 2.5 g L-' and [H202]o = 17.8 g L-1. The results demonstrate that the catalyst hydrophobicity/ hydrophilicity is a detenninant property in the CWPO reaction, since it affects the rate ofH202 decomposition. The controlled formation ofreactive radicais (HO* and HOO*) at hydrophobic surfaces avoids the formation of non-reactive species (02 and H20), increasing.

Idioma: Inglês

Tipo (Avaliação Docente): Científica