Dithionite accelerated copper slag heterogeneous-homogeneous coupled Fenton degradation of organic pollutants
Само за регистроване кориснике
2023
Аутори
Ma, BoYao, Jun
Šolević Knudsen, Tatjana
Pang, Wancheng
Liu, Bang
Zhu, Xiaozhe
Cao, Ying
Zhao, Chenchen
Чланак у часопису (Објављена верзија)
,
Elsevier B.V.
Метаподаци
Приказ свих података о документуАпстракт
The heterogeneous-homogeneous coupled Fenton (HHCF) processes combine the advantages of rapid reaction and the catalyst reuse, which makes them attractive for wastewater treatment. Nevertheless, the lack of both, cost-effective catalysts and the desirable Fe3+/Fe2+ conversion mediators limit the development of HHCF processes. This study investigates a prospective HHCF process, in which solid waste copper slag (CS) and dithionite (DNT) act as catalyst and mediator of Fe3+/Fe2+ transformation, respectively. DNT enables controlled leaching of iron and a highly efficient homogeneous Fe3+/Fe2+ cycle by dissociating to SO2- • under acidic conditions,
leading to the enhanced H2O2 decomposition and •OH generation (from 48 μmol/L to 399 μmol/L) for pchloroaniline (p-CA) degradation. The removal rate of p-CA in the CS/DNT/H2O2 system increased by 30 times in comparison with the CS/H2O2 system (increased from 1.21 × 10-3 min-1 to 3.61 × 10-2 min-1). Moreover, batch dosing of H2O2 can greatly pro...mote the yield of •OH (from 399 μmol/L to 627 μmol/L), by mitigating the side reactions between H2O2 and SO2- •. This study highlights the importance of the iron cycle regulation for improvement of the Fenton efficiency and develops a cost-effective Fenton system for organic contaminants elimination in wastewater.
Кључне речи:
Advanced oxidation processes / Iron redox cycle / Oxidative degradationИзвор:
Journal of Hazardous Materials, 2023, 457, 131797-Издавач:
- Elsevier
Финансирање / пројекти:
- International Joint Scientific and Technical Collaboration between the People’s Republic of China and the Republic of Serbia as part of the Project Number 4-18
- National Natural Science Foundation of China (42230716)
- National Major Research and Development Program of China (2019YFC1803500)
- 111 Project (B21017)
- Министарство науке, технолошког развоја и иновација Републике Србије, институционално финансирање - 200026 (Универзитет у Београду, Институт за хемију, технологију и металургију - ИХТМ) (RS-MESTD-inst-2020-200026)
DOI: 10.1016/j.jhazmat.2023.131797
ISSN: 0304-3894
PubMed: 37302188
Scopus: 2-s2.0-85161713049
Институција/група
IHTMTY - JOUR AU - Ma, Bo AU - Yao, Jun AU - Šolević Knudsen, Tatjana AU - Pang, Wancheng AU - Liu, Bang AU - Zhu, Xiaozhe AU - Cao, Ying AU - Zhao, Chenchen PY - 2023 UR - https://cer.ihtm.bg.ac.rs/handle/123456789/6880 AB - The heterogeneous-homogeneous coupled Fenton (HHCF) processes combine the advantages of rapid reaction and the catalyst reuse, which makes them attractive for wastewater treatment. Nevertheless, the lack of both, cost-effective catalysts and the desirable Fe3+/Fe2+ conversion mediators limit the development of HHCF processes. This study investigates a prospective HHCF process, in which solid waste copper slag (CS) and dithionite (DNT) act as catalyst and mediator of Fe3+/Fe2+ transformation, respectively. DNT enables controlled leaching of iron and a highly efficient homogeneous Fe3+/Fe2+ cycle by dissociating to SO2- • under acidic conditions, leading to the enhanced H2O2 decomposition and •OH generation (from 48 μmol/L to 399 μmol/L) for pchloroaniline (p-CA) degradation. The removal rate of p-CA in the CS/DNT/H2O2 system increased by 30 times in comparison with the CS/H2O2 system (increased from 1.21 × 10-3 min-1 to 3.61 × 10-2 min-1). Moreover, batch dosing of H2O2 can greatly promote the yield of •OH (from 399 μmol/L to 627 μmol/L), by mitigating the side reactions between H2O2 and SO2- •. This study highlights the importance of the iron cycle regulation for improvement of the Fenton efficiency and develops a cost-effective Fenton system for organic contaminants elimination in wastewater. PB - Elsevier T2 - Journal of Hazardous Materials T1 - Dithionite accelerated copper slag heterogeneous-homogeneous coupled Fenton degradation of organic pollutants VL - 457 SP - 131797 DO - 10.1016/j.jhazmat.2023.131797 ER -
@article{ author = "Ma, Bo and Yao, Jun and Šolević Knudsen, Tatjana and Pang, Wancheng and Liu, Bang and Zhu, Xiaozhe and Cao, Ying and Zhao, Chenchen", year = "2023", abstract = "The heterogeneous-homogeneous coupled Fenton (HHCF) processes combine the advantages of rapid reaction and the catalyst reuse, which makes them attractive for wastewater treatment. Nevertheless, the lack of both, cost-effective catalysts and the desirable Fe3+/Fe2+ conversion mediators limit the development of HHCF processes. This study investigates a prospective HHCF process, in which solid waste copper slag (CS) and dithionite (DNT) act as catalyst and mediator of Fe3+/Fe2+ transformation, respectively. DNT enables controlled leaching of iron and a highly efficient homogeneous Fe3+/Fe2+ cycle by dissociating to SO2- • under acidic conditions, leading to the enhanced H2O2 decomposition and •OH generation (from 48 μmol/L to 399 μmol/L) for pchloroaniline (p-CA) degradation. The removal rate of p-CA in the CS/DNT/H2O2 system increased by 30 times in comparison with the CS/H2O2 system (increased from 1.21 × 10-3 min-1 to 3.61 × 10-2 min-1). Moreover, batch dosing of H2O2 can greatly promote the yield of •OH (from 399 μmol/L to 627 μmol/L), by mitigating the side reactions between H2O2 and SO2- •. This study highlights the importance of the iron cycle regulation for improvement of the Fenton efficiency and develops a cost-effective Fenton system for organic contaminants elimination in wastewater.", publisher = "Elsevier", journal = "Journal of Hazardous Materials", title = "Dithionite accelerated copper slag heterogeneous-homogeneous coupled Fenton degradation of organic pollutants", volume = "457", pages = "131797", doi = "10.1016/j.jhazmat.2023.131797" }
Ma, B., Yao, J., Šolević Knudsen, T., Pang, W., Liu, B., Zhu, X., Cao, Y.,& Zhao, C.. (2023). Dithionite accelerated copper slag heterogeneous-homogeneous coupled Fenton degradation of organic pollutants. in Journal of Hazardous Materials Elsevier., 457, 131797. https://doi.org/10.1016/j.jhazmat.2023.131797
Ma B, Yao J, Šolević Knudsen T, Pang W, Liu B, Zhu X, Cao Y, Zhao C. Dithionite accelerated copper slag heterogeneous-homogeneous coupled Fenton degradation of organic pollutants. in Journal of Hazardous Materials. 2023;457:131797. doi:10.1016/j.jhazmat.2023.131797 .
Ma, Bo, Yao, Jun, Šolević Knudsen, Tatjana, Pang, Wancheng, Liu, Bang, Zhu, Xiaozhe, Cao, Ying, Zhao, Chenchen, "Dithionite accelerated copper slag heterogeneous-homogeneous coupled Fenton degradation of organic pollutants" in Journal of Hazardous Materials, 457 (2023):131797, https://doi.org/10.1016/j.jhazmat.2023.131797 . .