Is It Possible to Restrain OER on Simple Carbon Electrodes to Efficiently Electrooxidize Organic Pollutants?
2022
Preuzimanje 🢃
Autori
Ječmenica Dučić, MarijaAćimović, Danka
Savić, Branislava
Rakočević, Lazar
Simić, Marija
Brdarić, Tanja
Vasić Anićijević, Dragana D.
Članak u časopisu (Objavljena verzija)
Metapodaci
Prikaz svih podataka o dokumentuApstrakt
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.
Ključne reči:
carbon / DFT calculations / electrochemical oxidation / graphene / nanocomposite anodes / organic pollutants / oxygen evolution reactionIzvor:
Molecules, 2022, 27, 16, 5203-Finansiranje / projekti:
- Ministarstvo nauke, tehnološkog razvoja i inovacija Republike Srbije, institucionalno finansiranje - 200017 (Univerzitet u Beogradu, Institut za nuklearne nauke Vinča, Beograd-Vinča) (RS-MESTD-inst-2020-200017)
DOI: 10.3390/molecules27165203
ISSN: 1420-3049
WoS: 000846535500001
Scopus: 2-s2.0-85137589390
Kolekcije
Institucija/grupa
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 . .