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Interactions between microplastics and phthalate esters as affected by microplastics characteristics and solution chemistry

Chemosphere 2018 278 citations ? Citation count from OpenAlex, updated daily. May differ slightly from the publisher's own count. Score: 45 ? 0–100 AI score estimating relevance to the microplastics field. Papers below 30 are filtered from public browse.

Guangzhou Liu, Feifei Liu, Zhilin Zhu Su-chun Wang, Su-chun Wang, Feifei Liu, Feifei Liu, Feifei Liu, Su-chun Wang, Su-chun Wang, Guangzhou Liu, Zhilin Zhu, Feifei Liu, Feifei Liu, Guangzhou Liu, Su-chun Wang, Feifei Liu, Feifei Liu, Feifei Liu, Guangzhou Liu, Feifei Liu, Guangzhou Liu, Guangzhou Liu, Zhilin Zhu, Su-chun Wang, Zhilin Zhu Zhilin Zhu Zhilin Zhu Zhilin Zhu Zhilin Zhu Su-chun Wang, Feifei Zhao, Feifei Liu, Feifei Liu, Feifei Liu, Su-chun Wang, Feifei Liu, Feifei Liu, Feifei Liu, Zhilin Zhu, Zhilin Zhu, Zhilin Zhu, Zhilin Zhu, Su-chun Wang, Feifei Liu, Su-chun Wang, Su-chun Wang, Guangzhou Liu, Su-chun Wang, Guangzhou Liu, Feifei Liu, Feifei Liu, Feifei Liu, Feifei Liu, Feifei Liu, Feifei Zhao, Feifei Liu, Guangzhou Liu, Feifei Liu, Guangzhou Liu, Feifei Liu, Zhilin Zhu, Guangzhou Liu, Zhilin Zhu Feifei Liu, Guangzhou Liu, Guangzhou Liu, Guangzhou Liu, Guangzhou Liu, Guangzhou Liu, Guangzhou Liu, Zhilin Zhu

Summary

The sorption of two phthalate esters onto polystyrene, polyethylene, and polypropylene microplastics was studied under varying conditions, finding that sorption was influenced by polymer type, phthalate structure, temperature, salinity, and dissolved organic matter. The results provide mechanistic insight into how microplastics accumulate endocrine-disrupting phthalates from the environment.

Polymers

PE PS PVC

Microplastics have become a major concern in recent years as they can be recognized as the transport vectors for pollutants in environment. In this study, the sorption behavior of two phthalate esters (PAEs), including diethyl phthalate (DEP) and dibutyl phthalate (DBP), onto three types of microplastics (PVC: polyvinyl chloride, PE: polyethylene, and PS: polystyrene) was investigated. The sorption isotherms of both DEP and DBP on microplastics were highly linear, suggesting that the partition was the main sorption mechanism. The K values of DBP were much higher than those of DEP, demonstrating that hydrophobic interaction governed the partition mechanism. Sorption of the two PAEs on the three microplastics followed the order of PS > PE > PVC, indicating that chemical properties of microplastics played an important roles in their sorption behaviors. Solution pH and natural organic matter had no significant impact on PAEs sorption by microplastics. However, the presence of NaCl and CaCl enhanced the sorption of both DEP and DBP because of the salting-out effect. The findings of the present study may have significant implications for the fate and transport assessment of both PAEs and microplastics.

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