Degradation of novel mineral flotation reagent 8-hydroxyquinoline by superparamagnetic immobilized laccase: Effect, mechanism and toxicity evaluation
Само за регистроване кориснике
2022
Аутори
Chen, ZhihuiYao, Jun
Šolević Knudsen, Tatjana
Ma, Bo
Liu, Bang
Li, Haoa
Zhu, Xiaozhe
Zhao, Chenchen
Pang, Wancheng
Cao, Ying
Чланак у часопису (Објављена верзија)
Метаподаци
Приказ свих података о документуАпстракт
The environmental impact of the mining industry requires efficient and eco-friendly technologies to mitigate the presence of mineral flotation reagents (MFRs) in mineral processing wastewater (MPW) prior to their discharge into the environment. In this work, for the first time, a robust, easily separable and reusable biocatalyst, Fe3O4@SiO2-NH2-Lac, was used for the degradation of a novel mineral flotation reagent 8-hydroxyquinoline (8-HQ). Under optimized conditions, Fe3O4@SiO2-NH2-Lac achieved 89.2% 8-HQ degradation efficiency within 6 h. The effect of the main constituents of MPW on 8-HQ degradation, including metal ions, organic solvents, surfactant, metal chelator and flotation frother was evaluated. The Fe3O4@SiO2-NH2-Lac also displayed favorable degradation efficiency of 8-HQ in real lead–zinc mine water. The biocatalyst could be easily recovered and had a satisfactory reusability, retaining 64.5% of 8-HQ degradation efficiency in the sixth reaction cycle. Identification of inte...rmediate products revealed that Fe3O4@SiO2-NH2-Lac mediated reaction predominantly generated various structural 8-HQ oligomers/polymers. A potential degradation pathway for 8-HQ was speculated as follows: Fe3O4@SiO2-NH2-Lac initially catalyzed the oxidation of 8-HQ to yield the corresponding reactive radical intermediates, which subsequently undergone self-coupling reaction via C − C and C − O − C covalent coupling at their ortho and/or para positions, finally forming oligomers and polymers. The inhibition assays of marine bacterium (Vibrio fischeri) demonstrated that the toxicity of 8-HQ and its intermediate products was effectively reduced after Fe3O4@SiO2-NH2-Lac treatment. The results of this study might present an alternative immobilized laccase-based clean biotechnology for the clean-up and detoxification of 8-HQ contaminated MPW.
Кључне речи:
8-Hydroxyquinoline / Degradation mechanism / Laccase immobilization / Mineral flotation reagents / Toxicity assessmentИзвор:
Chemical Engineering Journal, 2022, 432, 134239-Издавач:
- Elsevier
Финансирање / пројекти:
- National Natural Science Foundation of China (NSFC) 41720104007
- Major National R & D Projects for Chinese Ministry of Science and Technology 2019YFC1803500
- Ministry of Education of the People's Republic of China B21017
- Министарство науке, технолошког развоја и иновација Републике Србије, институционално финансирање - 200026 (Универзитет у Београду, Институт за хемију, технологију и металургију - ИХТМ) (RS-200026)
- International Joint Scientific and Tech nical Collaboration between the People’s Republic of China and the Republic of Serbia (Project Number 4-18)
DOI: 10.1016/j.cej.2021.134239
ISSN: 1385-8947; 1873-3212
WoS: 000773397000001
Scopus: 2-s2.0-85121909668
Институција/група
IHTMTY - JOUR AU - Chen, Zhihui AU - Yao, Jun AU - Šolević Knudsen, Tatjana AU - Ma, Bo AU - Liu, Bang AU - Li, Haoa AU - Zhu, Xiaozhe AU - Zhao, Chenchen AU - Pang, Wancheng AU - Cao, Ying PY - 2022 UR - https://cer.ihtm.bg.ac.rs/handle/123456789/5267 AB - The environmental impact of the mining industry requires efficient and eco-friendly technologies to mitigate the presence of mineral flotation reagents (MFRs) in mineral processing wastewater (MPW) prior to their discharge into the environment. In this work, for the first time, a robust, easily separable and reusable biocatalyst, Fe3O4@SiO2-NH2-Lac, was used for the degradation of a novel mineral flotation reagent 8-hydroxyquinoline (8-HQ). Under optimized conditions, Fe3O4@SiO2-NH2-Lac achieved 89.2% 8-HQ degradation efficiency within 6 h. The effect of the main constituents of MPW on 8-HQ degradation, including metal ions, organic solvents, surfactant, metal chelator and flotation frother was evaluated. The Fe3O4@SiO2-NH2-Lac also displayed favorable degradation efficiency of 8-HQ in real lead–zinc mine water. The biocatalyst could be easily recovered and had a satisfactory reusability, retaining 64.5% of 8-HQ degradation efficiency in the sixth reaction cycle. Identification of intermediate products revealed that Fe3O4@SiO2-NH2-Lac mediated reaction predominantly generated various structural 8-HQ oligomers/polymers. A potential degradation pathway for 8-HQ was speculated as follows: Fe3O4@SiO2-NH2-Lac initially catalyzed the oxidation of 8-HQ to yield the corresponding reactive radical intermediates, which subsequently undergone self-coupling reaction via C − C and C − O − C covalent coupling at their ortho and/or para positions, finally forming oligomers and polymers. The inhibition assays of marine bacterium (Vibrio fischeri) demonstrated that the toxicity of 8-HQ and its intermediate products was effectively reduced after Fe3O4@SiO2-NH2-Lac treatment. The results of this study might present an alternative immobilized laccase-based clean biotechnology for the clean-up and detoxification of 8-HQ contaminated MPW. PB - Elsevier T2 - Chemical Engineering Journal T1 - Degradation of novel mineral flotation reagent 8-hydroxyquinoline by superparamagnetic immobilized laccase: Effect, mechanism and toxicity evaluation VL - 432 SP - 134239 DO - 10.1016/j.cej.2021.134239 ER -
@article{ author = "Chen, Zhihui and Yao, Jun and Šolević Knudsen, Tatjana and Ma, Bo and Liu, Bang and Li, Haoa and Zhu, Xiaozhe and Zhao, Chenchen and Pang, Wancheng and Cao, Ying", year = "2022", abstract = "The environmental impact of the mining industry requires efficient and eco-friendly technologies to mitigate the presence of mineral flotation reagents (MFRs) in mineral processing wastewater (MPW) prior to their discharge into the environment. In this work, for the first time, a robust, easily separable and reusable biocatalyst, Fe3O4@SiO2-NH2-Lac, was used for the degradation of a novel mineral flotation reagent 8-hydroxyquinoline (8-HQ). Under optimized conditions, Fe3O4@SiO2-NH2-Lac achieved 89.2% 8-HQ degradation efficiency within 6 h. The effect of the main constituents of MPW on 8-HQ degradation, including metal ions, organic solvents, surfactant, metal chelator and flotation frother was evaluated. The Fe3O4@SiO2-NH2-Lac also displayed favorable degradation efficiency of 8-HQ in real lead–zinc mine water. The biocatalyst could be easily recovered and had a satisfactory reusability, retaining 64.5% of 8-HQ degradation efficiency in the sixth reaction cycle. Identification of intermediate products revealed that Fe3O4@SiO2-NH2-Lac mediated reaction predominantly generated various structural 8-HQ oligomers/polymers. A potential degradation pathway for 8-HQ was speculated as follows: Fe3O4@SiO2-NH2-Lac initially catalyzed the oxidation of 8-HQ to yield the corresponding reactive radical intermediates, which subsequently undergone self-coupling reaction via C − C and C − O − C covalent coupling at their ortho and/or para positions, finally forming oligomers and polymers. The inhibition assays of marine bacterium (Vibrio fischeri) demonstrated that the toxicity of 8-HQ and its intermediate products was effectively reduced after Fe3O4@SiO2-NH2-Lac treatment. The results of this study might present an alternative immobilized laccase-based clean biotechnology for the clean-up and detoxification of 8-HQ contaminated MPW.", publisher = "Elsevier", journal = "Chemical Engineering Journal", title = "Degradation of novel mineral flotation reagent 8-hydroxyquinoline by superparamagnetic immobilized laccase: Effect, mechanism and toxicity evaluation", volume = "432", pages = "134239", doi = "10.1016/j.cej.2021.134239" }
Chen, Z., Yao, J., Šolević Knudsen, T., Ma, B., Liu, B., Li, H., Zhu, X., Zhao, C., Pang, W.,& Cao, Y.. (2022). Degradation of novel mineral flotation reagent 8-hydroxyquinoline by superparamagnetic immobilized laccase: Effect, mechanism and toxicity evaluation. in Chemical Engineering Journal Elsevier., 432, 134239. https://doi.org/10.1016/j.cej.2021.134239
Chen Z, Yao J, Šolević Knudsen T, Ma B, Liu B, Li H, Zhu X, Zhao C, Pang W, Cao Y. Degradation of novel mineral flotation reagent 8-hydroxyquinoline by superparamagnetic immobilized laccase: Effect, mechanism and toxicity evaluation. in Chemical Engineering Journal. 2022;432:134239. doi:10.1016/j.cej.2021.134239 .
Chen, Zhihui, Yao, Jun, Šolević Knudsen, Tatjana, Ma, Bo, Liu, Bang, Li, Haoa, Zhu, Xiaozhe, Zhao, Chenchen, Pang, Wancheng, Cao, Ying, "Degradation of novel mineral flotation reagent 8-hydroxyquinoline by superparamagnetic immobilized laccase: Effect, mechanism and toxicity evaluation" in Chemical Engineering Journal, 432 (2022):134239, https://doi.org/10.1016/j.cej.2021.134239 . .