Is It Possible to Restrain OER on Simple Carbon Electrodes to Efficiently Electrooxidize Organic Pollutants?
Authors
Ječmenica Dučić, Marija![](/themes/MirageVinar/images/orcid.png)
Aćimović, Danka
![](/themes/MirageVinar/images/orcid.png)
Savić, Branislava
![](/themes/MirageVinar/images/orcid.png)
Rakočević, Lazar
![](/themes/MirageVinar/images/orcid.png)
Simić, Marija
![](/themes/MirageVinar/images/orcid.png)
Brdarić, Tanja
![](/themes/MirageVinar/images/orcid.png)
Vasić Anićijević, Dragana D.
![](/themes/MirageVinar/images/orcid.png)
Article (Published version)
Metadata
Show full item recordAbstract
This paper presents a comparative analysis of three carbon-based electrodes: bare multiwalled carbon nanotubes (MWCNT), SnO2/MWCNT, and PbO2/graphene-nanoribbons (PbO2/GNR) composites, as anodes for the electrooxidative degradation of Rhodamine B as a model organic pollutant. Anodic electrooxidation of Rhodamine B was performed on all three electrodes, and the decolorization efficiency was found to increase in the order MWCNT < PbO2/GNR < SnO2/MWCNT. The electrodes were characterized by X-ray photoelectron spectroscopy (XPS) and linear sweep voltammetry (LSV). It was proposed that, in the 0.1 M Na2SO4 applied as electrolyte, observed decolorization mainly occurs in the interaction of Rhodamine B with OH radical adsorbed on the anode. Finally, the obtained results were complemented with Density Functional Theory (DFT) calculations of OH-radical interaction with appropriate model surfaces: graphene(0001), SnO2(001), and PbO2(001). It was found that the stabilization of adsorbed OH-radica...l on metal oxide spots (SnO2 or PbO2) compared to carbon is responsible for the improved efficiency of composites in the degradation of Rhodamine B. The observed ability of metal oxides to improve the electrooxidative potential of carbon towards organic compounds can be useful in the future design of appropriate anodes.
Keywords:
carbon / DFT calculations / electrochemical oxidation / graphene / nanocomposite anodes / organic pollutants / oxygen evolution reactionSource:
Molecules, 2022, 27, 16, 5203-Funding / projects:
- Ministry of Science, Technological Development and Innovation of the Republic of Serbia, institutional funding - 200017 (University of Belgrade, Institute of Nuclear Sciences 'Vinča', Belgrade-Vinča) (RS-MESTD-inst-2020-200017)
DOI: 10.3390/molecules27165203
ISSN: 1420-3049
WoS: 00084653550000
Scopus: 2-s2.0-85137589390
Collections
Institution/Community
VinčaTY - JOUR AU - Ječmenica Dučić, Marija AU - Aćimović, Danka AU - Savić, Branislava AU - Rakočević, Lazar AU - Simić, Marija AU - Brdarić, Tanja AU - Vasić Anićijević, Dragana D. PY - 2022 UR - https://vinar.vin.bg.ac.rs/handle/123456789/10412 AB - This paper presents a comparative analysis of three carbon-based electrodes: bare multiwalled carbon nanotubes (MWCNT), SnO2/MWCNT, and PbO2/graphene-nanoribbons (PbO2/GNR) composites, as anodes for the electrooxidative degradation of Rhodamine B as a model organic pollutant. Anodic electrooxidation of Rhodamine B was performed on all three electrodes, and the decolorization efficiency was found to increase in the order MWCNT < PbO2/GNR < SnO2/MWCNT. The electrodes were characterized by X-ray photoelectron spectroscopy (XPS) and linear sweep voltammetry (LSV). It was proposed that, in the 0.1 M Na2SO4 applied as electrolyte, observed decolorization mainly occurs in the interaction of Rhodamine B with OH radical adsorbed on the anode. Finally, the obtained results were complemented with Density Functional Theory (DFT) calculations of OH-radical interaction with appropriate model surfaces: graphene(0001), SnO2(001), and PbO2(001). It was found that the stabilization of adsorbed OH-radical on metal oxide spots (SnO2 or PbO2) compared to carbon is responsible for the improved efficiency of composites in the degradation of Rhodamine B. The observed ability of metal oxides to improve the electrooxidative potential of carbon towards organic compounds can be useful in the future design of appropriate anodes. T2 - Molecules T1 - Is It Possible to Restrain OER on Simple Carbon Electrodes to Efficiently Electrooxidize Organic Pollutants? VL - 27 IS - 16 SP - 5203 DO - 10.3390/molecules27165203 ER -
@article{ author = "Ječmenica Dučić, Marija and Aćimović, Danka and Savić, Branislava and Rakočević, Lazar and Simić, Marija and Brdarić, Tanja and Vasić Anićijević, Dragana D.", year = "2022", abstract = "This paper presents a comparative analysis of three carbon-based electrodes: bare multiwalled carbon nanotubes (MWCNT), SnO2/MWCNT, and PbO2/graphene-nanoribbons (PbO2/GNR) composites, as anodes for the electrooxidative degradation of Rhodamine B as a model organic pollutant. Anodic electrooxidation of Rhodamine B was performed on all three electrodes, and the decolorization efficiency was found to increase in the order MWCNT < PbO2/GNR < SnO2/MWCNT. The electrodes were characterized by X-ray photoelectron spectroscopy (XPS) and linear sweep voltammetry (LSV). It was proposed that, in the 0.1 M Na2SO4 applied as electrolyte, observed decolorization mainly occurs in the interaction of Rhodamine B with OH radical adsorbed on the anode. Finally, the obtained results were complemented with Density Functional Theory (DFT) calculations of OH-radical interaction with appropriate model surfaces: graphene(0001), SnO2(001), and PbO2(001). It was found that the stabilization of adsorbed OH-radical on metal oxide spots (SnO2 or PbO2) compared to carbon is responsible for the improved efficiency of composites in the degradation of Rhodamine B. The observed ability of metal oxides to improve the electrooxidative potential of carbon towards organic compounds can be useful in the future design of appropriate anodes.", journal = "Molecules", title = "Is It Possible to Restrain OER on Simple Carbon Electrodes to Efficiently Electrooxidize Organic Pollutants?", volume = "27", number = "16", pages = "5203", doi = "10.3390/molecules27165203" }
Ječmenica Dučić, M., Aćimović, D., Savić, B., Rakočević, L., Simić, M., Brdarić, T.,& Vasić Anićijević, D. D.. (2022). Is It Possible to Restrain OER on Simple Carbon Electrodes to Efficiently Electrooxidize Organic Pollutants?. in Molecules, 27(16), 5203. https://doi.org/10.3390/molecules27165203
Ječmenica Dučić M, Aćimović D, Savić B, Rakočević L, Simić M, Brdarić T, Vasić Anićijević DD. Is It Possible to Restrain OER on Simple Carbon Electrodes to Efficiently Electrooxidize Organic Pollutants?. in Molecules. 2022;27(16):5203. doi:10.3390/molecules27165203 .
Ječmenica Dučić, Marija, Aćimović, Danka, Savić, Branislava, Rakočević, Lazar, Simić, Marija, Brdarić, Tanja, Vasić Anićijević, Dragana D., "Is It Possible to Restrain OER on Simple Carbon Electrodes to Efficiently Electrooxidize Organic Pollutants?" in Molecules, 27, no. 16 (2022):5203, https://doi.org/10.3390/molecules27165203 . .