Novel modified semi-carbonized fiber prepared using discarded clothes for derisking Cu(II) and Pb(II) contaminated water.
Autor: | Deng HY; College of Environmental Science and Engineering, China West Normal University, Nanchong, Sichuan, 637009, China., Wang YF; College of Chemical Engineering, Xinjiang University, Urumchi, Xinjiang, 830046, China., Guo MT; College of Environmental Science and Engineering, China West Normal University, Nanchong, Sichuan, 637009, China., Li WB; College of Environmental Science and Engineering, China West Normal University, Nanchong, Sichuan, 637009, China; Key Laboratory of Nanchong City of Ecological Environment Protection and Pollution Prevention in Jialing River Basin, Nanchong, Sichuan, 637009, China. Electronic address: lwb062@163.com., Li M; Key Laboratory of Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu, 610041, China., Yu CT; College of Environmental Science and Engineering, China West Normal University, Nanchong, Sichuan, 637009, China. |
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Jazyk: | angličtina |
Zdroj: | Journal of environmental management [J Environ Manage] 2024 Feb; Vol. 351, pp. 119997. Date of Electronic Publication: 2023 Dec 30. |
DOI: | 10.1016/j.jenvman.2023.119997 |
Abstrakt: | We report a novel modified semi-carbonized fiber (CF) prepared using cotton and acrylic clothes for derisking contaminated water to realize the resource utilization of discarded clothes in wastewater treatment. In this study, amphoteric and auxiliary modifiers were used to modify CFs for preparing amphoteric and amphoteric-auxiliary CFs. The basic physicochemical properties of different modified CFs were determined, and the microscopic morphology of modified CFs was detected. The isothermal adsorption characteristics of Cu(II) and Pb(II) on different modified CFs were investigated by the batch method, and the effect mechanisms of temperature, pH, ionic strength, and material dose were compared. Physicochemical properties and microscopic morphology results proved that amphoteric and auxiliary modifiers were modified on the CF surface and changed the surface properties of CF. The adsorption capacities of Cu(II) and Pb(II) on modified CFs increased with the increase in equilibrium concentration of Cu(II) and Pb(II), and the isotherm was more suitable for Freundlich model fitting than that of the Langmuir model. The maximum adsorption capacities (q Competing Interests: Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper. (Copyright © 2024 Elsevier Ltd. All rights reserved.) |
Databáze: | MEDLINE |
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