6533b7d8fe1ef96bd126b7c0
RESEARCH PRODUCT
Elimination of pesticide atrazine by photoelectrocatalysis using a photoanode based on WO3 nanosheets
B. Lucas-granadosR.m. Fernández-domeneRita Sánchez-tovarM.j. Muñoz-porteroJosé García-antónsubject
NanostructureGeneral Chemical EngineeringKinetics02 engineering and technology010501 environmental sciencesElectrochemistry01 natural sciencesIndustrial and Manufacturing EngineeringINGENIERIA QUIMICAchemistry.chemical_compoundEnvironmental ChemistryAtrazine0105 earth and related environmental sciencesNanoestructuresAnodizingGeneral ChemistryAtrazine degradation021001 nanoscience & nanotechnologyWO3 nanostructuresElectroquímicaChemical engineeringchemistryDegradation (geology)NanorodPhotoelectrocatalysisAnodization0210 nano-technologyCyanuric aciddescription
[EN] The photoelectrocatalytic (PEC) degradation of a persistent and toxic herbicide, atrazine, has been investigated by using a novel and high-performance WO3 nanostructure in the form of nanosheets/nanorods as photoanode. The nanostructure has been synthesized by anodization in acidic media in the presence of a very small amount (0.05 M) of H2O2, and its morphology, as well as its electrochemical and photoelectrochemical properties have been characterized. Atrazine was completely degraded after similar to 180 min of reaction following pseudo-first order kinetics, and 2-hydroxyatrazine was identified as the main intermediate species. Moreover, the s-triazine ring in cyanuric acid (the final intermediate of atrazine degradation and very stable) was partially broken according to the obtained results, indicating the excellent PEC behavior of this WO3 nanostructure.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2018-10-01 |