4.4 Article

Electrochemical investigation of freshwater biofilm on FTO surface: Oxide film perspective

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CHEMISTRYSELECT
卷 7, 期 48, 页码 -

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WILEY-V C H VERLAG GMBH
DOI: 10.1002/slct.202202955

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Biofilm; Fluorine doped tin oxide; Interface; Impedance spectroscopy

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This study investigated the electrophysiology of freshwater active biofilm using FTO electrodes. The attachment of biofilm on the FTO surface was revealed through open circuit potential and microscopic studies. Results showed a shift in potential to noble direction after 240 hours of exposure. Cyclic voltammetry and electrochemical impedance spectroscopy were used to analyze the electrochemical communications between FTO and biofilm interfaces.
The contemporary field of bacterial biofilm electrophysiology is a greater importance to understanding the interfaces of active biofilm/material. The electrophysiology of freshwater active biofilm was studied using Fluorine-doped tin oxide (FTO) electrodes. The open circuit potential and microscopic studies were revealed the attachment of biofilm on the FTO surface. The shift of potential to noble direction up to +402 mV vs SCE was observed on the FTO after 240 h exposure of freshwater. The open-circuit potential (OCP) was revealed the attachment of biofilm on the FTO surface. Cyclic Voltammetry studies were employed to analyze the redox behavior of biofilm on FTO with different time intervals. Cyclic voltammetry (CV) and electrochemical impedance spectroscopy (EIS) were also used to analyze the electrochemical communications between FTO and biofilm interfaces. The present work was investigated to explain electrochemical interfaces between n-type oxide film and electro active bacterial biofilm.

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