Desenvolvimento de eletrodos cilíndricos de diamante para tratamento de águas / Cylindrical diamond electrodes for wastewater treatment

AUTOR(ES)

Hudson Giovani Zanin

FONTE

IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia

DATA DE PUBLICAÇÃO

20/03/2012

RESUMO

Cylindrical diamond electrodes are developed with area up to 75 cm2 and were applied in electrochemical degradation of organic pollutants in wastewater. Systematic study was carried out to deposit conductive and well-adherent diamond onto several materials. These electrodes were characterized in term of their material and electrochemical properties by scanning electron microscopy (SEM), Raman and energy dispersive spectroscopy, voltammetry, nanoindentation, four points probe, pull-off test. The oxidation of several micro-pollutants in water were studied and monitored by UV/Vis absorbance, Chemical Oxygen Demand (COD) and Total Organic Carbon (TOC). The electrodegradation results employing cylindrical boron-doped diamond (BDD) electrodes were satisfactory compared with best results obtained with conventional plate-shape BDD electrodes.

ASSUNTO(S)

eletrodos diamante eletroquímica Água - poluição electrode diamond electrochemical water pollution

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