Título: Environmental PollutionImportada do Authenticus Pesquisar Publicações da Revista

Vol. 240

Páginas: 541-548

ISSN: 0269-7491

Editora: Elsevier

ISI Web of Knowledge - 0 Citações

ISI Web of Science

Scopus - 4 Citações

ID Authenticus: P-010-4E8

DOI: 10.1016/j.envpol.2018.04.051

Resumo (PT):

Abstract (EN): Photocatalysis was recognised as a suitable process for the photoabatement of atmospheric pollutants. The photooxidation mechanism on TiO2 has been widely studied. However, recent studies demonstrated that the very often-assumed photooxidation intermediated by the hydroxyl radical cannot explain all the experimental observations. Indeed, this study contributes for a new understanding of NO photooxidation. First, the adsorption equilibrium isotherms of NO, NO2 and H2O on the photocatalyst, Aeroxide (R) P25 from Evonik Industries, were obtained. Also, the concentration of hydroxyl radicals was determined by photoluminescence. A comprehensive design of experiments was then followed; NO conversion and selectivity were obtained as a function of the relative humidity, irradiance, NO inlet concentration and residence time, following a response surface methodology (RSM). These results were then used to discuss the photooxidation mechanism of NO.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 8

Tipo de Licença: