Differently Prepared PbO2/Graphitic Carbon Nitride Composites for Efficient Electrochemical Removal of Reactive Black 5 Dye
Authors
Stanković, Dalibor
Ognjanović, Miloš

Manojlović, Dragan D.

Konya, Zoltan
Kukuruzar, Andrej

Savić, Slađana D.

Marković, Aleksandar
Article (Published version)
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In this paper, electrochemical degradation of Reactive Black 5 (RB5) textile azo dye was examined in regard to different synthesis procedures for making PbO2–graphitic carbon nitride (g-C3N4) electrode. The reaction of Pb(OH)−3
with ClO− in the presence of different surfactants, i.e., cetyltrimethylammonium bromide (CTAB) and tetrabutylammonium phosphate (TBAP), under conventional conditions, resulted in the formation of PbO2 with varying morphology. The obtained materials were combined with g-C3N4 for the preparation of the final composite materials, which were then characterized morphologically and electrochemically. After optimizing the degradation method, it was shown that an anode comprising a steel electrode coated with the composite of PbO2 synthesized using CTAB as template and g-C3N4, and using 0.15 M Na2SO4 as the supporting electrolyte, gave the best performance for RB5 dye removal from a 35 mg/L solution. The treatment duration was 60 min, applying a current of 0.17 A (el...ectrode surface 4 cm2, current density of 42.5 mA/cm2), while the initial pH of the testing solution was 2. The reusability and longevity of the electrode surface (which showed no significant change in activity throughout the study) may suggest that this approach is a promising candidate for wastewater treatment and pollutant removal.
Keywords:
energy efficiency / lead dioxide / advanced oxidation processes / electrode morphology / surfactant-assisted synthesis / reactive azo dyeSource:
Catalysts, 2023, 13, 2, 328-Publisher:
- MDPI
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Hemijski fakultet / Faculty of ChemistryTY - JOUR AU - Stanković, Dalibor AU - Ognjanović, Miloš AU - Manojlović, Dragan D. AU - Konya, Zoltan AU - Kukuruzar, Andrej AU - Savić, Slađana D. AU - Marković, Aleksandar PY - 2023 UR - http://cherry.chem.bg.ac.rs/handle/123456789/5887 AB - In this paper, electrochemical degradation of Reactive Black 5 (RB5) textile azo dye was examined in regard to different synthesis procedures for making PbO2–graphitic carbon nitride (g-C3N4) electrode. The reaction of Pb(OH)−3 with ClO− in the presence of different surfactants, i.e., cetyltrimethylammonium bromide (CTAB) and tetrabutylammonium phosphate (TBAP), under conventional conditions, resulted in the formation of PbO2 with varying morphology. The obtained materials were combined with g-C3N4 for the preparation of the final composite materials, which were then characterized morphologically and electrochemically. After optimizing the degradation method, it was shown that an anode comprising a steel electrode coated with the composite of PbO2 synthesized using CTAB as template and g-C3N4, and using 0.15 M Na2SO4 as the supporting electrolyte, gave the best performance for RB5 dye removal from a 35 mg/L solution. The treatment duration was 60 min, applying a current of 0.17 A (electrode surface 4 cm2, current density of 42.5 mA/cm2), while the initial pH of the testing solution was 2. The reusability and longevity of the electrode surface (which showed no significant change in activity throughout the study) may suggest that this approach is a promising candidate for wastewater treatment and pollutant removal. PB - MDPI T2 - Catalysts T1 - Differently Prepared PbO2/Graphitic Carbon Nitride Composites for Efficient Electrochemical Removal of Reactive Black 5 Dye VL - 13 IS - 2 SP - 328 DO - 10.3390/catal13020328 ER -
@article{ author = "Stanković, Dalibor and Ognjanović, Miloš and Manojlović, Dragan D. and Konya, Zoltan and Kukuruzar, Andrej and Savić, Slađana D. and Marković, Aleksandar", year = "2023", abstract = "In this paper, electrochemical degradation of Reactive Black 5 (RB5) textile azo dye was examined in regard to different synthesis procedures for making PbO2–graphitic carbon nitride (g-C3N4) electrode. The reaction of Pb(OH)−3 with ClO− in the presence of different surfactants, i.e., cetyltrimethylammonium bromide (CTAB) and tetrabutylammonium phosphate (TBAP), under conventional conditions, resulted in the formation of PbO2 with varying morphology. The obtained materials were combined with g-C3N4 for the preparation of the final composite materials, which were then characterized morphologically and electrochemically. After optimizing the degradation method, it was shown that an anode comprising a steel electrode coated with the composite of PbO2 synthesized using CTAB as template and g-C3N4, and using 0.15 M Na2SO4 as the supporting electrolyte, gave the best performance for RB5 dye removal from a 35 mg/L solution. The treatment duration was 60 min, applying a current of 0.17 A (electrode surface 4 cm2, current density of 42.5 mA/cm2), while the initial pH of the testing solution was 2. The reusability and longevity of the electrode surface (which showed no significant change in activity throughout the study) may suggest that this approach is a promising candidate for wastewater treatment and pollutant removal.", publisher = "MDPI", journal = "Catalysts", title = "Differently Prepared PbO2/Graphitic Carbon Nitride Composites for Efficient Electrochemical Removal of Reactive Black 5 Dye", volume = "13", number = "2", pages = "328", doi = "10.3390/catal13020328" }
Stanković, D., Ognjanović, M., Manojlović, D. D., Konya, Z., Kukuruzar, A., Savić, S. D.,& Marković, A.. (2023). Differently Prepared PbO2/Graphitic Carbon Nitride Composites for Efficient Electrochemical Removal of Reactive Black 5 Dye. in Catalysts MDPI., 13(2), 328. https://doi.org/10.3390/catal13020328
Stanković D, Ognjanović M, Manojlović DD, Konya Z, Kukuruzar A, Savić SD, Marković A. Differently Prepared PbO2/Graphitic Carbon Nitride Composites for Efficient Electrochemical Removal of Reactive Black 5 Dye. in Catalysts. 2023;13(2):328. doi:10.3390/catal13020328 .
Stanković, Dalibor, Ognjanović, Miloš, Manojlović, Dragan D., Konya, Zoltan, Kukuruzar, Andrej, Savić, Slađana D., Marković, Aleksandar, "Differently Prepared PbO2/Graphitic Carbon Nitride Composites for Efficient Electrochemical Removal of Reactive Black 5 Dye" in Catalysts, 13, no. 2 (2023):328, https://doi.org/10.3390/catal13020328 . .