Efficient treatment of palladium from wastewater by acrolein cross-linked chitosan hydrogels : Adsorption, kinetics, and mechanisms
Copyright © 2023 Elsevier B.V. All rights reserved..
Herein we present a study on the preparation and properties of a hydrogel adsorbent for treatment of wasted palladium souring from actial petrochemical industrial wastewater. Chitosan was used as the raw material and acrolein as the cross-linking agent for the hydrogel (A/CS). The adsorption behaviors of the hydrogel for Pd(II) ions were characterized and analyzed. The effect of pH, temperature, adsorption kinetics, and thermodynamics were investigated. Langmuir models were employed to describe the adsorption isotherms, while the pseudo-second-order equation was applied to describe the adsorption kinetics. The experimental results demonstrated that the adsorption was a monolayer chemical adsorption, and the adsorption capacity was found to reach 505.05 mg/g under optimal conditions. In addition, FT-IR and XPS analyses, combined with MS calculations confirmed that chelation and electrostatic attraction were dominated in the adsorption process. Overall, the development of this hydrogel adsorbent will provide a practical approach to the treatment of industrial wastewater containing palladium and have great potential for practical applications.
| Medienart: |
E-Artikel |
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| Erscheinungsjahr: |
2024 |
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| Erschienen: |
2024 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:254 |
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| Enthalten in: |
International journal of biological macromolecules - 254(2024), Pt 3 vom: 04. Jan., Seite 127850 |
| Sprache: |
Englisch |
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| Beteiligte Personen: |
Li, Yan [VerfasserIn] |
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| Links: |
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| Themen: |
5TWQ1V240M |
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| Anmerkungen: |
Date Completed 05.01.2024 Date Revised 06.01.2024 published: Print-Electronic Citation Status MEDLINE |
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| doi: |
10.1016/j.ijbiomac.2023.127850 |
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| funding: |
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| Förderinstitution / Projekttitel: |
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| PPN (Katalog-ID): |
NLM364167599 |
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| 520 | |a Copyright © 2023 Elsevier B.V. All rights reserved. | ||
| 520 | |a Herein we present a study on the preparation and properties of a hydrogel adsorbent for treatment of wasted palladium souring from actial petrochemical industrial wastewater. Chitosan was used as the raw material and acrolein as the cross-linking agent for the hydrogel (A/CS). The adsorption behaviors of the hydrogel for Pd(II) ions were characterized and analyzed. The effect of pH, temperature, adsorption kinetics, and thermodynamics were investigated. Langmuir models were employed to describe the adsorption isotherms, while the pseudo-second-order equation was applied to describe the adsorption kinetics. The experimental results demonstrated that the adsorption was a monolayer chemical adsorption, and the adsorption capacity was found to reach 505.05 mg/g under optimal conditions. In addition, FT-IR and XPS analyses, combined with MS calculations confirmed that chelation and electrostatic attraction were dominated in the adsorption process. Overall, the development of this hydrogel adsorbent will provide a practical approach to the treatment of industrial wastewater containing palladium and have great potential for practical applications | ||
| 650 | 4 | |a Journal Article | |
| 650 | 4 | |a Adsorption | |
| 650 | 4 | |a Chitosan | |
| 650 | 4 | |a Palladium ion | |
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| 700 | 1 | |a Qu, Guo |e verfasserin |4 aut | |
| 700 | 1 | |a Zhang, Han |e verfasserin |4 aut | |
| 700 | 1 | |a Dai, Yimin |e verfasserin |4 aut | |
| 700 | 1 | |a Tan, Jinglin |e verfasserin |4 aut | |
| 700 | 1 | |a Zhong, Jinrong |e verfasserin |4 aut | |
| 700 | 1 | |a Zhang, Yue-Fei |e verfasserin |4 aut | |
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