On the application of nanostructured electrodes prepared by Ti/TiO2/WO3 template : A case study of removing toxicity of indigo using visible irradiation
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Elsevier
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New assays with HepG2 cells indicate that Indigo Carmine (IC), a dye that is widely used as additive in many food and pharmaceutical industries exhibited cytotoxic effects. This work describes the development of a bicomponent nanostructured Ti/TiO2/WO3 electrode prepared by template method and investigates its efficiency in a photoelectrocatalytic method by using visible light irradiation and applied potential of 1V. After 2h of treatment there are reduction of 97% discoloration, 62% of mineralization and formation of three byproducts assigned as: 2-amine-5-sulfo-benzoic acid, 2,3-dioxo-14-indole-5-sulfonic acid, and 2-amino-α-oxo-5-sulfo-benzeneacetic acid were identified by HPLC-MS/MS. But, cytotoxicity was completely removed after 120min of treatment. © 2013 Elsevier Ltd.
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Byproducts Cytotoxicity Food dye Genotoxicity Indigo carmine Photoelectrocatalytic treatment Genotoxicities Indigo Carmine Nano-structured electrodes Pharmaceutical industry Photoelectrocatalytic Visible-light irradiation 2 amine 5 sulfo benzoic acid 2 amino alpha oxo 5 sulfo benzeneacetic acid 2,3 dioxo 14 indole 5 sulfonic acid acid indigo carmine nanomaterial titanium titanium dioxide tungsten tungsten trioxide unclassified drug acetic acid anatase drug dye electrode irradiance pollutant removal toxicity visible spectrum cell strain HepG2 controlled study cytotoxicity genotoxicity high performance liquid chromatography human human cell irradiation mass spectrometry mineralization photocatalysis Electrodes Indoles Models, Chemical Nanostructures Oxides Photochemical Processes Titanium Tungsten Water Pollutants, Chemical Water Purification
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Inglês
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Chemosphere, v. 91, n. 5, p. 586-593, 2013.
