Sorption of tetracycline antibiotics by microplastics, associated mechanisms, and risk assessments

被引：8

作者：

Li, Xiang ^{[1
]}

Zeng, Lingling ^{[1
]}

Jiang, Huating ^{[2
]}

Sui, Jia ^{[3
]}

Shuang, Bao ^{[3
]}

Zhu, Liya ^{[1
]}

Tang, Junqian ^{[1
]}

Dai, Yingjie ^{[1
]}

机构：

[1] College of Resources and Environment, Northeast Agricultural University, No. 600 Changjiang Road, Xiangfang District, Harbin

[2] School of Environmental Science and Engineering, Huazhong University of Science & Technology, Wuhan

[3] College of Life Sciences, Northeast Agricultural University, No.600 Changjiang Road, Xiangfang District, Harbin

来源：

Science of the Total Environment | 2025年 / 958卷

关键词：

Microplastics; Response surface analysis; Sorption behavior; Tetracycline;

D O I：

10.1016/j.scitotenv.2024.178054

中图分类号：

学科分类号：

摘要：

In this study, we selected polyvinyl chloride (PVC), polyethylene (PE), and polystyrene (PS) as representative microplastics (MPs) to systematically investigate the sorption behavior of tetracycline (TC) antibiotics by MPs. Scanning electron microscopy, X-ray diffraction, Fourier transform-infrared spectroscopy, and adsorption experiments were applied to assess the sorption behavior of MPs. The results demonstrated that the sorption of TC by MPs was most favorable under neutral conditions, where a modest increase in the salt ion concentration enhanced the adsorption of TC by MPs. The saturation adsorption capacities for PVC, PE, and PS for TC were determined as 121.95 μg/g, 81.301 μg/g, and 178.57 μg/g, respectively. The strength of TC sorption by MPs followed the order of: PS > PVC > PE. Analysis of the sorption behavior of TC by MPs showed that the adsorption of TC by PE was weak and it readily desorbed, and thus their interaction will not lead to excessive compound pollution. By contrast, the adsorption of TC was high by PVC and PS, and they were not readily desorbed. © 2024

引用

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