Puification of water using boron-doped diamond electrodes: decomposition of organic compounds and disinfection

0540855 - FZÚ 2021 GR eng A - Abstract
Szabó, Ondrej - Štenclová, Pavla - Budil, J. - Lišková, P. - Ižák, Tibor - Potocký, Štěpán - Vyskočil, V. - Kromka, Alexander
Puification of water using boron-doped diamond electrodes: decomposition of organic compounds and disinfection.
17th ESEAC 2018. International Conference on Electroanalysis. Book of Abstracts. Athens: University of Athens, 2018. s. 180-180.
[ESEAC 2018. International Conference on Electroanalysis /17./. 03.06.2018-07.06.2018, Rhodes]
Institutional support: RVO:68378271
Keywords : boron-doped diamond * decomposition of organic compounds
OECD category: Electrochemistry (dry cells, batteries, fuel cells, corrosion metals, electrolysis)

Boron-doped diamond (BDD) is recognized as an attractive electrode material for the wastewater cleaning (decomposition of organic compounds or disinfection driven by reactive oxygen species). Here we demonstrate the applicability of BDD electrodes for the decomposition of methyl orange (MO) by electrochemically generated OH* radicals. Real time monitoring of temperature, pH, dissolved oxygen, ORP, conductivity and optical absorbance was provided to evaluate the degradation of MO. The process was capable to fully decompose 30 mg of MO in 1 L tap water after 7.5 h without the addition of salt or other electrical conductivity-enhancing components. To conclude, provided experiments confirm wide potential of BDD electrodes for the electrochemical purification of water (e.g. decomposition of environmentally dangerous pollutants and killing of bacteria) while no BDD electrode degradation was observed proving their excellent chemical resistance under harsh conditions.

Permanent Link: http://hdl.handle.net/11104/0318446