Adsorption of sulfonamides on polyamide microplastics in an aqueous solution: behavior, structural effects, and its mechanism

[Display omitted] •Significant structural effects of SAs upon the SAs adsorption by PA were observed.•The structural effects cannot be neglected in various environmental conditions.•Kow and Ead-v jointly play a vital role in the structural effects of SAs.•Adsorption energies were driven by electrost...

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Bibliographic Details
Published in:Chemical engineering journal (Lausanne, Switzerland : 1996) Switzerland : 1996), 2023-02, Vol.454, p.140452, Article 140452
Main Authors: Jiang, Zhangsong, Huang, Xiangfeng, Wu, Qiaofeng, Li, Mi, Xie, Qili, Liu, Zuwen, Zou, Xiaoming
Format: Article
Language:English
Subjects:
Adsorption mechanism
Density functional theory
Polyamide
Structural effect
Sulfonamides
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Summary:[Display omitted] •Significant structural effects of SAs upon the SAs adsorption by PA were observed.•The structural effects cannot be neglected in various environmental conditions.•Kow and Ead-v jointly play a vital role in the structural effects of SAs.•Adsorption energies were driven by electrostatic and H-bond interactions. Although microplastics (MPs) and sulfonamides (SAs) are emerging aquatic pollutants, the structural effects of SAs following their adsorption on MPs and underlying mechanisms of the same remain unelucidated. In this study, the characteristics of the adsorption of 10 SAs on polyamide (PA) were analyzed, and significant structural effects of the former were observed at different pH values (P 
ISSN:1385-8947
1873-3212
DOI:10.1016/j.cej.2022.140452