| Enhanced adsorption of oxytetracycline to weathered microplastic polystyrene: Kinetics, isotherms and influencing factors | |
Zhang, Haibo ; Wang, Jiaqing; Zhou, Bianying; Zhou, Yang; Dai, Zhenfei; Zhou, Qian; Christie, Peter; Luo, Yongming
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| 发表期刊 | ENVIRONMENTAL POLLUTION
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| ISSN | 0269-7491 |
| 2018-12 | |
| 卷号 | 243期号:B页码:1550-1557 |
| 关键词 | Antibiotics Adsorption Microplastics Polystyrene foam Aging surface |
| 研究领域 | Environmental Sciences & Ecology |
| DOI | 10.1016/j.envpol.2018.09.122 |
| 产权排序 | [Zhang, Haibo; Wang, Jiaqing; Zhou, Bianying] Zhejiang Agr & Forestry Univ, Sch Environm & Resources, Hangzhou 311300, Zhejiang, Peoples R China; [Christie, Peter; Luo, Yongming] Chinese Acad Sci, Nanjing Inst Soil Sci, Nanjing 210008, Jiangsu, Peoples R China; [Zhou, Yang; Dai, Zhenfei; Zhou, Qian] Chinese Acad Sci, Yantai Inst Coastal Zone Res, Key Lab Coastal Environm Proc & Ecol Remediat, Yantai 264003, Peoples R China |
| 作者部门 | 中国科学院海岸带环境过程重点实验室 |
| 英文摘要 | Microplastic polystyrene foam has been found widely in the environment and is readily transported by wind or water. Beached and virgin foams of size 0.45-1 mm were prepared as sorbents to study oxytetracycline sorption. Enhanced adsorption were found in the beached foams compared to the virgin foams, corresponding to the higher specific surface area, micropore area and the degree of oxidation of the former. The Freundlich K-f value was 894 +/- 84 ((mg kg(-1)) (mg L-1)(1/n))for oxytetracycline adsorption on the beached foams, approximately twice as high as on the virgin foams. Effects of solution pH on adsorption to the beached foams were more pronounced to the virgin foams. Maximum adsorption occurred at pH 5 at which electrostatic repulsion between the microplastic surface and the oxytetracycline zwitterion was minimal, indicating that electrostatic interaction may have regulated adsorption. Moreover, H-bonding and multivalent cationic bridging mechanisms may also have affected the adsorption of oxytetracycline to the beached foams as reflected by the ionic effects. Adsorption was promoted more in the presence of humic acid than of fulvic acid, perhaps owing to pi-pi conjugation between the humic acid and the microplastic surface which led to enhanced electrostatic attraction for oxytetracycline. This study suggests that weathered polystyrene foams may act as carriers of antibiotics in the environment and their potential risks to ecosystem and human health merit further investigation. (C) 2018 Elsevier Ltd. All rights reserved. |
| 文章类型 | Article |
| 资助机构 | National Natural Science Foundation of China [41771351] ; Zhejiang Agriculture and Forestry University [2017FR021] ; Key Project of the Chinese Academy of Sciences [QYZDJ-SSW-DQC05] |
| 收录类别 | SCI |
| 语种 | 英语 |
| 关键词[WOS] | SOUTH CHINA ; ORGANIC-MATTER ; HUMIC-ACID ; BOHAI SEA ; ANTIBIOTICS ; SORPTION ; TETRACYCLINE ; BEACHES ; DEBRIS ; WATER |
| 研究领域[WOS] | Environmental Sciences |
| WOS记录号 | WOS:000449892700080 |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.yic.ac.cn/handle/133337/24587 |
| 专题 | 中国科学院海岸带环境过程与生态修复重点实验室_污染过程与控制实验室 中国科学院海岸带环境过程与生态修复重点实验室 |
| 作者单位 | 1.Zhejiang Agr & Forestry Univ, Sch Environm & Resources, Hangzhou 311300, Zhejiang, Peoples R China; 2.Chinese Acad Sci, Nanjing Inst Soil Sci, Nanjing 210008, Jiangsu, Peoples R China; 3.Chinese Acad Sci, Yantai Inst Coastal Zone Res, Key Lab Coastal Environm Proc & Ecol Remediat, Yantai 264003, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhang, Haibo,Wang, Jiaqing,Zhou, Bianying,et al. Enhanced adsorption of oxytetracycline to weathered microplastic polystyrene: Kinetics, isotherms and influencing factors[J]. ENVIRONMENTAL POLLUTION,2018,243(B):1550-1557. |
| APA | Zhang, Haibo.,Wang, Jiaqing.,Zhou, Bianying.,Zhou, Yang.,Dai, Zhenfei.,...&Luo, Yongming.(2018).Enhanced adsorption of oxytetracycline to weathered microplastic polystyrene: Kinetics, isotherms and influencing factors.ENVIRONMENTAL POLLUTION,243(B),1550-1557. |
| MLA | Zhang, Haibo,et al."Enhanced adsorption of oxytetracycline to weathered microplastic polystyrene: Kinetics, isotherms and influencing factors".ENVIRONMENTAL POLLUTION 243.B(2018):1550-1557. |
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