OXIDACIÓN ELECTROQUÍMICA DE LAMBDACIALOTRINA SOBRE ELECTRODOS DE PBO2-BI

Química Nova

Leonardo Cifuentes¹  Dorelys Flores¹  Lorean Madriz¹  Ronald Vargas¹ 

关键词: lambdacyhalothrin;    PbO2-Bi;    Langmuir-Hinshelwood;    triton X-100;   

DOI  :  10.5935/0100-4042.20150107

来源: SciELO

【 摘 要 】

The electrochemical oxidation of lambdacyhalotrin in a triton X-100 water solution on a PbO2-Bi electrode has been studied. It was discovered that electrocatalytic degradation proceeded through the Langmuir-Hinshelwood (L-H) mechanism. The Langmuir adsorption equilibrium constant of the organic compound on the PbO2-Bi surface (0.67 (±0.02) mg-1L) and the L-H maximum reaction rate for lambdacyhalotrin oxidation (0.040 (±0.002) mg L-1 min-1) was also determined on the basis of kinetic data. Oxidation/mineralization was tested at electrode potential higher than 2.3 V vs. Ag/AgCl, in this conditions the higher degradation percent of 85 (±4) % has been obtained.

【 授权许可】

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