解吸
吸附
微塑料
化学
环境化学
聚乙烯
色谱法
化学工程
有机化学
工程类
作者
Jiaxuan Li,Yunxue Li,Bushra Maryam,Xiaochen Chen,Yanping Zong,Jianbo Tu,Pingping Zhang,Xianhua Liu
标识
DOI:10.1016/j.marpolbul.2023.115473
摘要
Antibiotics and microplastics (MPs) coexisting as unique environmental contaminants may cause unintended environmental issues. In this study, the adsorption-desorption behaviors of sulfamethoxazole (SMX) on both original and UV-aged MPs were examined. Polyhydroxyalkanoates (PHA) and polyethylene (PE), which represent degradable and refractory MPs, respectively, were chosen as two distinct types of MPs. Furthermore, simulated fish intestinal fluids (SFIF) and simulated mammalian stomach fluids (SMGF) were employed to evaluate the desorption behaviors of SMX from aged MPs. Our findings demonstrate that UV-aging altered the polarity, hydrophilicity, and structure of the MPs. Aged MPs showed a higher adsorption capacity than the original MPs and they have a higher desorption capacity than original MPs in simulated body fluids. PE has a higher SMX desorption capacity in SFIF and the opposite happened in SMGF. Our results highlight the importance of considering the different adsorption-desorption behaviors of antibiotics on MPs when evaluating their environmental impact.
科研通智能强力驱动
Strongly Powered by AbleSci AI