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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Undergraduate course
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Elsevier
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Article
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Abstract
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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Keywords
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
Language
English
Citation
Chemosphere, v. 91, n. 5, p. 586-593, 2013.
