Resumo

CHANG, Wei; ZHANG, Maojin; REN, Xiaosai  e  MILLER, Andrew. Synthesis and photocatalytic activity of monolithic Fe₂O₃/TiO₂. S.Afr.j.chem. (Online) [online]. 2017, vol.70, pp.127-131. ISSN 1996-840X.  https://doi.org/10.17159/0379-4350/2017/v70a18.

The monolithic Fe₂O3/TiO₂ composites were synthesized via a one-pot sol-gel process with titanium tetrachloride as a Ti source and ferric chloride as a Fe source. The monolithic Fe₂O3/TiO₂ composites were characterized by scanning electron microscopy, powder XRD, N₂/adsorption-desorption, fluorescence and UV-vis diffuse reflectance spectroscopy. The photocatalytic activity of the Fe₂O3/TiO₂ composites were evaluated by degradation of bisphenol A. The results indicated that, with the doping of Fe, the surface area of the monolithic Fe₂O/TiO₂ increased, the forbidden band width decreased and the electron-hole recombination rate decreased. The monolithic Fe₂O3/TiO₂ composite with Fe/Ti molar ratio of 0.03 had the best photocatalytic activity for degradation of bisphenol A.

Palavras-chave : Sol-gel process; Fe₂O₃/TiO₂; photocatalysis.

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