Journal
QUIMICA NOVA
Volume 39, Issue 8, Pages 944-950Publisher
SOC BRASILEIRA QUIMICA
DOI: 10.21577/0100-4042.20160140
Keywords
titanium (IV) citrate; porphyrin; microemulsion; photocatalysis; 4-chlorophenol
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Photocatalytic activity of titanium citrate and its water-in-oil microemulsions mix with zinc (II) tetraphenylporphyrin have been studied by means of adding 4-chlorophenol and following its degradation using artificial ultraviolet and visible light. 4-Chlorophenol is degraded in 71 and 86%, respectively, in 30 min with the generation of various intermediaries, whose possible formation mechanisms have been proposed based in the results of this research. The generation of benzene derivatives, different to those usually reported for this type of treatment, suggests the possibility of controlling the generation of intermediaries by simply changing the type of surfactant. In the case discussed here, we have derived a simple method for isomer generation of trimethylbenzene using a model organohalogenated compound as water contaminant and cetyltrimethylammonium bromide as surfactant.
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