A novel floating photocatalyst device based on cloth canvas impregnated with iron oxide.

Resumo
In this paper an innovative and versatile design for a catalytic photoreactor is presented. The photoreactor is based on a floating Polypropylene non-woven fabric canvas (NWF) impregnated with particles of a mixture of iron oxides and oxyhydroxides adhered to the surface of microfibers. The canvas was characterized with different techniques including Mo¨ssbauer spectroscopy, Raman scattering, FTIR, and SEM. UV-Vis spectroscopy showed that the impregnated particles presented an average gap of 2.2 eV. The activity and efficiency of the photocatalyst was tested by photodegradation of rhodamine-B (Rh-B) and the results showed that the floating photocatalyst has a high catalytic activity and maintains its efficiency even after five reuse tests at intervals of 90 min with a small average residual concentration of 6.2% Rhodamine-B in each reuse cycle.
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Citação
OLIVEIRA, H. dos S. et al. A novel floating photocatalyst device based on cloth canvas impregnated with iron oxide. New Journal of Chemistry, 1987, v. 37, p. 2486-2491, 2013. Disponível em:<http://pubs.rsc.org/en/Content/ArticleLanding/2013/NJ/c3nj00274h#!divAbstract> . Acesso em: 16 jun. 2017.