Please use this identifier to cite or link to this item: http://repositorio.ufla.br/jspui/handle/1/28764
Title: Floating photocatalysts based on TiO2 grafted on expanded polystyrene beads for the solar degradation of dyes
Keywords: Floating photocatalysts
Expanded polystyrene
Solar degradation of dyes
Fotocatalisadores flutuantes
Poliestireno expandido
Degradação solar de corantes
Issue Date: Sep-2009
Publisher: Elsevier
Citation: MAGALHÃES, F.; LAGO, R. M. Floating photocatalysts based on TiO2 grafted on expanded polystyrene beads for the solar degradation of dyes. Solar Energy, Kidlinton, v. 83, n. 9, p. 1521-1526, Sept. 2009.
Abstract: In this work, a highly active, low cost, simple and robust floating photocatalyst based on TiO2 P25 grafted on expanded polystyrene (EPS) beads was developed. SEM and TG analyses showed that ca. 18 wt% of TiO2 can be permanently grafted on the surface of EPS particles. This floating photocatalyst showed high efficiency for the degradation of three different dyes, i.e. methylene blue, indigo carmine and drimaren red, with UV (Hg 245 nm) or solar irradiation under constrained conditions, i.e. non-stirring and no-oxygenation. Under the same conditions pure TiO2 showed very low activities. The floating photocatalyst can be reused for at least four consecutive times without any significant decrease on the discoloration and TOC removal after each reuse.
URI: https://www.sciencedirect.com/science/article/pii/S0038092X09000966#!
http://repositorio.ufla.br/jspui/handle/1/28764
Appears in Collections:DQI - Artigos publicados em periódicos

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