title: On the application of nanostructured electrodes prepared by Ti/TiO2/WO3 "template": a case study of removing toxicity of indigo using visible irradiation.
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 120 min of treatment.
authors: UNESP, Instituto de Química, Universidade Estadual Paulista Júlio de Mesquita Filho, Rua Professor Francisco Degni 55, Araraquara, SP, Brazil.
authors: Thais T
authors: TT
authors: Guaraldo
authors: Thalita B
authors: TB
authors: Zanoni
authors: Susana I C
authors: SI
authors: de Torresi
authors: Vinicius R
authors: VR
authors: Gonçales
authors: Guilherme J
authors: GJ
authors: Zocolo
authors: Danielle P
authors: DP
authors: Oliveira
authors: Maria Valnice B
authors: MV
authors: Zanoni
mesh_terms: D004566:Electrodes; D007203:Indigo Carmine; D007211:Indoles / Q000032:analysis* / Q000737:chemistry / Q000633:toxicity; D008956:Models, Chemical; D049329:Nanostructures / Q000737:chemistry*; D010087:Oxides / Q000737:chemistry; D055668:Photochemical Processes; D014025:Titanium / Q000737:chemistry; D014414:Tungsten / Q000737:chemistry; D014874:Water Pollutants, Chemical / Q000032:analysis* / Q000737:chemistry / Q000633:toxicity; D018508:Water Purification / Q000379:methods*
chemical_list: D007211:Indoles; D010087:Oxides; D014874:Water Pollutants, Chemical; C009495:titanium dioxide; C511604:tungsten oxide; D014025:Titanium; D007203:Indigo Carmine; D014414:Tungsten