Adsorption of antibiotics on microplastics (MPs) in aqueous environments: The impacts of aging and biofilms

吸附 生物膜 化学 聚乙烯 微塑料 水溶液 疏水效应 离子强度 化学工程 氢键 核化学 色谱法 环境化学 有机化学 分子 细菌 工程类 生物 遗传学
作者
Hongliang Ji,Siwen Wan,Zhenzhong Liu,Xianchuan Xie,Xiaofang Xiang,Lili Liao,Weikang Zheng,Zhengguo Fu,Peng Liao,Ronglong Chen
出处
期刊:Journal of environmental chemical engineering [Elsevier BV]
卷期号:12 (2): 111992-111992 被引量:23
标识
DOI:10.1016/j.jece.2024.111992
摘要

Microplastics (MPs) that accumulate in natural water bodies through various pathways inevitably undergo aging and biofilm attachment. These variations can alter the physicochemical properties of the MPs and thus affect their abilities to adsorb other pollutants. In this study, we chose virgin polyethylene (V-PE) as the experimental MP and generated aged, biofilm-developed and biofilm-developed with aged polyethylene (A-PE, B-PE and B-A-PE) via Fenton advanced oxidation and lake water incubation methods. Then, the adsorption of tetracycline hydrochloride (TC-HCl) and cefalexin (CFX) on V-PE, A-PE, B-PE and B-A-PE was investigated. The results showed that the capacities for adsorption of TC-HCl or CFX on the four polyethylene MPs (PEMPs) increased in the order V-PE < A-PE < B-PE < B-A-PE. The order was attributed to differences in the surface roughnesses, crystallinities, surface functional groups and biofilm biomass of the four PEMPs. Kinetic experiments and isotherms indicated that nonlinear multilayer adsorption occurred via physicochemical actions, such as diffusion, hydrophobic interactions, hydrogen bonding interactions, electrostatic interactions and biodegradation. Specifically, the adsorption of TC-HCl or CFX by V-PE and A-PE was predominantly controlled by diffusion, whereas B-PE and B-A-PE were chemically active. In addition, it is worth noting that biofilms may shield antibiotics from electrostatic interactions with the B-PE and B-A-PE surfaces, and an increase in ionic strength inhibited the adsorption of TC-HCl and CFX by the four PEMPs. Our study provides an important reference for determining the adsorption of antibiotics by MPs in natural waters.
最长约 10秒,即可获得该文献文件

科研通智能强力驱动
Strongly Powered by AbleSci AI
更新
PDF的下载单位、IP信息已删除 (2025-6-4)

科研通是完全免费的文献互助平台,具备全网最快的应助速度,最高的求助完成率。 对每一个文献求助,科研通都将尽心尽力,给求助人一个满意的交代。
实时播报
ssssxr发布了新的文献求助10
1秒前
欧阳正义发布了新的文献求助10
2秒前
沉淀完成签到 ,获得积分10
2秒前
博修发布了新的文献求助10
2秒前
勤恳的半邪完成签到,获得积分10
2秒前
灯与鬼发布了新的文献求助10
2秒前
5秒前
ZERO完成签到,获得积分10
8秒前
ssssxr完成签到,获得积分20
9秒前
Neko发布了新的文献求助10
10秒前
10秒前
酸奶辣条发布了新的文献求助10
10秒前
15秒前
CodeCraft应助博修采纳,获得10
18秒前
18秒前
xu完成签到 ,获得积分10
18秒前
领导范儿应助PXP采纳,获得10
20秒前
欧阳正义发布了新的文献求助10
23秒前
23秒前
深情安青应助夔kk采纳,获得30
24秒前
xzzt发布了新的文献求助10
24秒前
25秒前
26秒前
安白完成签到 ,获得积分20
28秒前
hoshi发布了新的文献求助10
28秒前
我陈雯雯实名上网完成签到,获得积分10
28秒前
29秒前
PXP发布了新的文献求助10
32秒前
33秒前
34秒前
35秒前
博修发布了新的文献求助10
37秒前
芒芒发布了新的文献求助200
38秒前
38秒前
烟花应助飞天817采纳,获得10
38秒前
38秒前
饱满的书萱完成签到,获得积分20
39秒前
42秒前
李健应助博修采纳,获得10
42秒前
43秒前
高分求助中
A new approach to the extrapolation of accelerated life test data 1000
Cognitive Neuroscience: The Biology of the Mind 1000
Technical Brochure TB 814: LPIT applications in HV gas insulated switchgear 1000
Immigrant Incorporation in East Asian Democracies 600
Nucleophilic substitution in azasydnone-modified dinitroanisoles 500
不知道标题是什么 500
A Preliminary Study on Correlation Between Independent Components of Facial Thermal Images and Subjective Assessment of Chronic Stress 500
热门求助领域 (近24小时)
化学 材料科学 医学 生物 工程类 有机化学 生物化学 物理 内科学 纳米技术 计算机科学 化学工程 复合材料 遗传学 基因 物理化学 催化作用 冶金 细胞生物学 免疫学
热门帖子
关注 科研通微信公众号,转发送积分 3967279
求助须知:如何正确求助?哪些是违规求助? 3512575
关于积分的说明 11164253
捐赠科研通 3247522
什么是DOI,文献DOI怎么找? 1793850
邀请新用户注册赠送积分活动 874729
科研通“疑难数据库(出版商)”最低求助积分说明 804495