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CHARACTERIZATION OF STRUCTURALLY DIFFERENT BORON-DOPED DIAMOND ELECTRODES

Authors: Vagenknecht Gabriela

Year: 2024

Type of publication: ostatní - přednáška nebo poster

Page from-to: nestránkováno

Titles:

Language	Name	Abstract	Keywords
eng	CHARACTERIZATION OF STRUCTURALLY DIFFERENT BORON-DOPED DIAMOND ELECTRODES	The efficiency of boron-doped diamond electrodes (BDDE) in wastewater treatment is influenced by boron content, sp3 carbon content, total surface area, surface morphology, etc. In addition to the rate of pollutant removal, surface characteristics can also affect the rate of formation and composition of degradation by-products. Electrode characterization can be approached by both direct surface analysis and qualitative and quantitative analysis of the reactants formed. Microscopic techniques such as scanning electron microscopy (SEM) or digital holographic microscopy (DHM) are used to analyse the surface of BDDE. Raman or infrared spectroscopy is also frequently encountered, as well as electrochemical methods such as cyclic voltammetry (CV). Quenching is commonly used to determine the amount and type of reagents formed on the surface of BDDE, including oxidative ones, but also electron paramagnetic resonance or methods monitoring the change in absorbance in the UV-VIS spectrum or the formation of fluorescence radiation after the reaction of a reagent with a specific organic substance. Therefore, a combination of methods describing both the electrode surface and the formation of oxidizing agents was used to characterize the newly developed electrodes.