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Enhanced electrochemical activity of boron-doped nanocarbon functionalized reticulated vitreous carbon structures for water treatment applications
Abstract
An extraordinary charge transfer kinetics and chemical stability make a boron-doped diamond (BDD) a prom- ising material for electrochemical applications including wastewater treatment. Yet, with flat geometrical sur- faces its scaling options are limited. In this study, the reticulated Vitreous Carbon (RVC) served as a substrate for boron-doped diamondized nanocarbons (BDNC) film growth resulting with complex heterogeneity carbon structures with different morphologies defined by using electron microscopy, microtomography, activation en- ergy studies, and Raman spectroscopy. The proposed modification significantly boosted the electrochemical Fe(CN)6 3 /4 redox activity. The vol- tammetry and impedimetric studies revealed its origin as a significantly higher share of electrochemically active sites at the BDNC@RVC electrode (increased by 114 %) combined with enhanced heterogeneous rate constant (2× increase up to 8.24⋅10 4 cm s 1). Finally, to establish its applicability for water treatment, the BDNC@RVC was studied as the anode in electrochemical paracetamol decomposition. Boron-enriched nanoarchitecture formed at the RVC electrode surface substantially reduced the oxidation energy barrier manifested as a decrease in activation overpotential by 212 mV, which gave a consequence in a 78 % removal rate (in 4 h, at 0.7 mA cm 2), 12 % higher than bare RVC and yielding lower amounts of APAP decomposition intermediates.
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Authors (11)
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Paweł Rostkowski Dr
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Mirosław Sawczak dr hab. inż.
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Full text
- Publication version
- Accepted or Published Version
- DOI:
- Digital Object Identifier (open in new tab) 10.1016/j.diamond.2023.110673
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- Category:
- Articles
- Type:
- artykuły w czasopismach
- Published in:
-
DIAMOND AND RELATED MATERIALS
no. 141,
ISSN: 0925-9635 - Language:
- English
- Publication year:
- 2024
- Bibliographic description:
- Kaczmarzyk I., Banasiak M., Jakóbczyk P., Sobaszek M., Strugała G., Seramak T., Rostkowski P., Karczewski J., Sawczak M., Ryl J., Bogdanowicz R.: Enhanced electrochemical activity of boron-doped nanocarbon functionalized reticulated vitreous carbon structures for water treatment applications// DIAMOND AND RELATED MATERIALS -Vol. 141, (2024), s.110673-
- DOI:
- Digital Object Identifier (open in new tab) 10.1016/j.diamond.2023.110673
- Sources of funding:
- Verified by:
- Gdańsk University of Technology
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