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Synthesis and characterization of cylindrical electrode with sucrose binder as advanced electrode materials for copper 3D-electro-oxidation

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Abstract

This study produced a biomass-based cylindrical electrode containing sucrose (an organic binder). The Cu2+ removal performance of the synthesized sucrose-bonded cylindrical electrode was evaluated in a 3-phase 3-dimensional electro-oxidation reactor (3D-EO) and the classical electro-oxidation method (2D-EO). Sodium Dodecyl Sulfate (SDs) was grafted onto activated carbon and used as microelectrode in 3D-EO reactors. SDs grafting resulted in a 57% reduction in the micropores of activated carbon. Therefore, the surface area of carbon after grafting decreased from 1328 m2/g to 580 m2/g. The sucrose-bonded cylindrical electrode has a rich carbon structure and consists of 84.04 wt% C, 12.10 wt% O and 3.20 wt%Si. According to CV measurement, the sucrose-bonded cylindrical electrode gives a surface reaction against Cu2+ at voltages lower than -0.62 V. Increasing the potential difference from 1V to 3V in 2D-EO and 3D-EO processes led to the removal of Cu2+ from the solution. The 3D-EO reactor achieved a removal rate of 87.12% at 3V. The 100 ppm solution was treated with a 3D-EO reactor containing 6 g/L of PC/SDs400Ws for 60 min, successfully removing 91.22% of Cu2+.

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Acknowledgements

This study has been funded by the Scientific Research Foundation, Eskisehir Osmangazi University under grant numbers FBA-2021-1591.

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The author declares that this study has been funded by the Scientific Research Foundation, Eskisehir Osmangazi University under grant numbers FBA-2021-1591.

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Material preparation, data collection, analysis, execution of experiments and manuscript were carried out by Canan SAMDAN.

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Correspondence to Canan Samdan.

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Samdan, C. Synthesis and characterization of cylindrical electrode with sucrose binder as advanced electrode materials for copper 3D-electro-oxidation. Environ Sci Pollut Res 30, 99511–99528 (2023). https://doi.org/10.1007/s11356-023-29388-7

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  • DOI: https://doi.org/10.1007/s11356-023-29388-7

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