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.
Original language | English |
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Pages (from-to) | 586-593 |
Number of pages | 8 |
Journal | Chemosphere |
Volume | 91 |
Issue number | 5 |
Early online date | 18 Jan 2013 |
DOIs | |
Publication status | Published - 30 Apr 2013 |
Bibliographical note
Funding Information:The authors are grateful to CAPES, FAPESP (Process: 2008/10449-7) and CNPq.
Keywords
- Byproducts
- Cytotoxicity
- Food dye
- Genotoxicity
- Indigo carmine
- Photoelectrocatalytic treatment
ASJC Scopus subject areas
- Environmental Engineering
- Environmental Chemistry
- General Chemistry
- Pollution
- Health, Toxicology and Mutagenesis