Low-Cost Graphene-Based Composite Electrodes for Electrochemical Oxidation of Phenolic Dyes
Аутори
Ječmenica Dučić, Marija![](/themes/MirageVinar/images/orcid.png)
Krstić, Aleksandar D.
![](/themes/MirageVinar/images/orcid.png)
Zdolšek, Nikola
![](/themes/MirageVinar/images/orcid.png)
Aćimović, Danka
![](/themes/MirageVinar/images/orcid.png)
Savić, Branislava
![](/themes/MirageVinar/images/orcid.png)
Brdarić, Tanja
![](/themes/MirageVinar/images/orcid.png)
Vasić Anićijević, Dragana D.
![](/themes/MirageVinar/images/orcid.png)
Чланак у часопису (Објављена верзија)
Метаподаци
Приказ свих података о документуАпстракт
Electrochemical removal of organic pollutants represents an attractive methodology in water depollution. The key challenges for researchers comprise finding simple, affordable electrode materials with satisfactory efficiency in all ranges of pollutant concentration. Electrochemical oxidation of a mixture of phenol-based dyes: bromocresol green (BCG), cresol red (CR), and thymol blue (TB), in sulphate medium, at total concentration not exceeding 15 ppm, has been performed using simply prepared, low-cost composite electrodes, based on graphene nanoplatelets (GNP) and metallic oxides (TiO2 and SnO2) loaded on stainless steel substrate: GNP@SS, SnO2/GNP@SS, and TiO2/GNP@SS. Electrodes were characterised by XRD, FTIR, and electrochemical techniques. The degradation kinetics of initial dyes was tracked with UPLC and GC-MS chromatography for 6 h, at a current density of 10 mA/cm2. GC-MS analysis of the degradation products revealed oxidised aromatic compounds as the main products, while TOC a...nalysis confirmed a total mineralisation extent in the range of 30–35%. The proposed degradation mechanism involves the attack of OH-radical, as the main oxidising agent, to the hydroxyl oxygens of dye phenolic rings. Obtained results provide useful information for the further development of affordable laboratory-scale and industrial systems for the complete removal of phenol-based compounds.
Кључне речи:
carbon composites / electrochemical depollution / phenolic compounds / pollutant dyesИзвор:
Crystals, 2023, 13, 1, 125-Финансирање / пројекти:
- Министарство науке, технолошког развоја и иновација Републике Србије, институционално финансирање - 200017 (Универзитет у Београду, Институт за нуклеарне науке Винча, Београд-Винча) (RS-MESTD-inst-2020-200017)
- HiSuperBat - High-Capacity Electrodes for Aqueous Rechargeable Multivalent-Ion Batteries and Supercapacitors: Next Step Towards a Hybrid Model (RS-ScienceFundRS-Promis-6062667)
Институција/група
VinčaTY - JOUR AU - Ječmenica Dučić, Marija AU - Krstić, Aleksandar D. AU - Zdolšek, Nikola AU - Aćimović, Danka AU - Savić, Branislava AU - Brdarić, Tanja AU - Vasić Anićijević, Dragana D. PY - 2023 UR - https://vinar.vin.bg.ac.rs/handle/123456789/10619 AB - Electrochemical removal of organic pollutants represents an attractive methodology in water depollution. The key challenges for researchers comprise finding simple, affordable electrode materials with satisfactory efficiency in all ranges of pollutant concentration. Electrochemical oxidation of a mixture of phenol-based dyes: bromocresol green (BCG), cresol red (CR), and thymol blue (TB), in sulphate medium, at total concentration not exceeding 15 ppm, has been performed using simply prepared, low-cost composite electrodes, based on graphene nanoplatelets (GNP) and metallic oxides (TiO2 and SnO2) loaded on stainless steel substrate: GNP@SS, SnO2/GNP@SS, and TiO2/GNP@SS. Electrodes were characterised by XRD, FTIR, and electrochemical techniques. The degradation kinetics of initial dyes was tracked with UPLC and GC-MS chromatography for 6 h, at a current density of 10 mA/cm2. GC-MS analysis of the degradation products revealed oxidised aromatic compounds as the main products, while TOC analysis confirmed a total mineralisation extent in the range of 30–35%. The proposed degradation mechanism involves the attack of OH-radical, as the main oxidising agent, to the hydroxyl oxygens of dye phenolic rings. Obtained results provide useful information for the further development of affordable laboratory-scale and industrial systems for the complete removal of phenol-based compounds. T2 - Crystals T1 - Low-Cost Graphene-Based Composite Electrodes for Electrochemical Oxidation of Phenolic Dyes VL - 13 IS - 1 SP - 125 DO - 10.3390/cryst13010125 ER -
@article{ author = "Ječmenica Dučić, Marija and Krstić, Aleksandar D. and Zdolšek, Nikola and Aćimović, Danka and Savić, Branislava and Brdarić, Tanja and Vasić Anićijević, Dragana D.", year = "2023", abstract = "Electrochemical removal of organic pollutants represents an attractive methodology in water depollution. The key challenges for researchers comprise finding simple, affordable electrode materials with satisfactory efficiency in all ranges of pollutant concentration. Electrochemical oxidation of a mixture of phenol-based dyes: bromocresol green (BCG), cresol red (CR), and thymol blue (TB), in sulphate medium, at total concentration not exceeding 15 ppm, has been performed using simply prepared, low-cost composite electrodes, based on graphene nanoplatelets (GNP) and metallic oxides (TiO2 and SnO2) loaded on stainless steel substrate: GNP@SS, SnO2/GNP@SS, and TiO2/GNP@SS. Electrodes were characterised by XRD, FTIR, and electrochemical techniques. The degradation kinetics of initial dyes was tracked with UPLC and GC-MS chromatography for 6 h, at a current density of 10 mA/cm2. GC-MS analysis of the degradation products revealed oxidised aromatic compounds as the main products, while TOC analysis confirmed a total mineralisation extent in the range of 30–35%. The proposed degradation mechanism involves the attack of OH-radical, as the main oxidising agent, to the hydroxyl oxygens of dye phenolic rings. Obtained results provide useful information for the further development of affordable laboratory-scale and industrial systems for the complete removal of phenol-based compounds.", journal = "Crystals", title = "Low-Cost Graphene-Based Composite Electrodes for Electrochemical Oxidation of Phenolic Dyes", volume = "13", number = "1", pages = "125", doi = "10.3390/cryst13010125" }
Ječmenica Dučić, M., Krstić, A. D., Zdolšek, N., Aćimović, D., Savić, B., Brdarić, T.,& Vasić Anićijević, D. D.. (2023). Low-Cost Graphene-Based Composite Electrodes for Electrochemical Oxidation of Phenolic Dyes. in Crystals, 13(1), 125. https://doi.org/10.3390/cryst13010125
Ječmenica Dučić M, Krstić AD, Zdolšek N, Aćimović D, Savić B, Brdarić T, Vasić Anićijević DD. Low-Cost Graphene-Based Composite Electrodes for Electrochemical Oxidation of Phenolic Dyes. in Crystals. 2023;13(1):125. doi:10.3390/cryst13010125 .
Ječmenica Dučić, Marija, Krstić, Aleksandar D., Zdolšek, Nikola, Aćimović, Danka, Savić, Branislava, Brdarić, Tanja, Vasić Anićijević, Dragana D., "Low-Cost Graphene-Based Composite Electrodes for Electrochemical Oxidation of Phenolic Dyes" in Crystals, 13, no. 1 (2023):125, https://doi.org/10.3390/cryst13010125 . .