On the application of nanostructured electrodes prepared by Ti/TiO2/WO3 template : A case study of removing toxicity of indigo using visible irradiation
Nenhuma Miniatura disponível
Data
2013-01-17
Autores
Guaraldo, Thais T. [UNESP]
Zanoni, Thalita B.
de Torresi, Susana I.C.
Gonçales, Vinicius R.
Zocolo, Guilherme J. [UNESP]
Oliveira, Danielle P.
Zanoni, Maria Valnice Boldrin [UNESP]
Título da Revista
ISSN da Revista
Título de Volume
Editor
Resumo
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.
Descrição
Palavras-chave
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
Como citar
Chemosphere, v. 91, n. 5, p. 586-593, 2013.