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Insight into interactions of polystyrene microplastics with different types and compositions of dissolved organic matter

The Science of The Total Environment 2022 98 citations ? Citation count from OpenAlex, updated daily. May differ slightly from the publisher's own count. Score: 50 ? 0–100 AI score estimating relevance to the microplastics field. Papers below 30 are filtered from public browse.

Xiaoqin Yu, Xiaoqin Yu, Ling Ding, Ling Ding, Ling Ding, Ling Ding, Peng Liu, Xiaoqin Yu, Xuetao Guo Zhuozhi Ouyang, Xiaoqin Yu, Xiaoqin Yu, Ling Ding, Xiaoqin Yu, Peng Liu, Zhuozhi Ouyang, Zhuozhi Ouyang, Xiaoqin Yu, Zhuozhi Ouyang, Xuetao Guo Peng Liu, Peng Liu, Yuanyuan Luo, Xiaoqin Yu, Xuetao Guo Ling Ding, Peng Liu, Xuetao Guo Ling Ding, Ling Ding, Ling Ding, Ling Ding, Peng Liu, Zhuozhi Ouyang, Peng Liu, Zhuozhi Ouyang, Peng Liu, Peng Liu, Peng Liu, Peng Liu, Peng Liu, Xiaoqin Yu, Xiaoqin Yu, Xiaoqin Yu, Xiaoqin Yu, Yuanyuan Luo, Yuanyuan Luo, Yuanyuan Luo, Yuanyuan Luo, Zhuozhi Ouyang, Xuetao Guo Xuetao Guo Xuetao Guo Zhuozhi Ouyang, Xuetao Guo Zhuozhi Ouyang, Ling Ding, Xiaoqin Yu, Xiaoqin Yu, Xiaoqin Yu, Xuetao Guo Xuetao Guo Xuetao Guo Zhuozhi Ouyang, Zhuozhi Ouyang, Zhuozhi Ouyang, Ling Ding, Zhuozhi Ouyang, Xuetao Guo Zhuozhi Ouyang, Ling Ding, Zhuozhi Ouyang, Peng Liu, Xiaoqin Yu, Xuetao Guo Xuetao Guo Xuetao Guo Xuetao Guo Xuetao Guo Xuetao Guo Zhuozhi Ouyang, Zhuozhi Ouyang, Zhuozhi Ouyang, Ling Ding, Zhuozhi Ouyang, Peng Liu, Xiaoqin Yu, Xiaoqin Yu, Xiaoqin Yu, Peng Liu, Xiaoqin Yu, Xiaoqin Yu, Peng Liu, Xiaoqin Yu, Xuetao Guo Xuetao Guo Xuetao Guo Xuetao Guo Peng Liu, Peng Liu, Peng Liu, Xuetao Guo Ling Ding, Zhuozhi Ouyang, Xuetao Guo Zhuozhi Ouyang, Peng Liu, Zhuozhi Ouyang, Xuetao Guo Xuetao Guo Xuetao Guo Zhuozhi Ouyang, Ling Ding, Xuetao Guo Zhuozhi Ouyang, Zhuozhi Ouyang, Xuetao Guo Zhuozhi Ouyang, Zhuozhi Ouyang, Zhuozhi Ouyang, Xuetao Guo Zhuozhi Ouyang, Xuetao Guo Xuetao Guo Xuetao Guo Zhuozhi Ouyang, Peng Liu, Xuetao Guo Xuetao Guo Xuetao Guo Zhuozhi Ouyang, Xuetao Guo Xuetao Guo Ling Ding, Ling Ding, Zhuozhi Ouyang, Zhuozhi Ouyang, Xuetao Guo Xuetao Guo Xuetao Guo Xuetao Guo Xuetao Guo Xuetao Guo Xuetao Guo Xuetao Guo Xuetao Guo Xuetao Guo Xuetao Guo Xuetao Guo Xuetao Guo Xuetao Guo Xuetao Guo Xuetao Guo Xuetao Guo Xuetao Guo Xuetao Guo Xuetao Guo Xuetao Guo Xuetao Guo Xuetao Guo Xuetao Guo Xuetao Guo Xuetao Guo Xuetao Guo Xuetao Guo Xuetao Guo Xuetao Guo Xuetao Guo Xuetao Guo Xuetao Guo Xuetao Guo Xuetao Guo Xuetao Guo Xuetao Guo Xuetao Guo Xuetao Guo Xuetao Guo Xuetao Guo Xuetao Guo Xuetao Guo Xuetao Guo Xuetao Guo Peng Liu, Peng Liu, Peng Liu, Peng Liu, Zhuozhi Ouyang, Zhuozhi Ouyang, Zhuozhi Ouyang, Zhuozhi Ouyang, Zhuozhi Ouyang, Xuetao Guo Xuetao Guo Peng Liu, Zhuozhi Ouyang, Xuetao Guo Xuetao Guo Xuetao Guo Xuetao Guo Xuetao Guo Xuetao Guo Xuetao Guo Xuetao Guo Xuetao Guo Xuetao Guo Xuetao Guo Xuetao Guo Xuetao Guo Zhuozhi Ouyang, Xuetao Guo Xuetao Guo Xuetao Guo Xuetao Guo Xuetao Guo Peng Liu, Xuetao Guo Xuetao Guo Peng Liu, Peng Liu, Xuetao Guo Xuetao Guo Xuetao Guo Xuetao Guo Xuetao Guo Xuetao Guo Xuetao Guo Xuetao Guo Xuetao Guo Xuetao Guo Xuetao Guo Xuetao Guo Xuetao Guo Xuetao Guo Zhuozhi Ouyang, Peng Liu, Xuetao Guo Xuetao Guo Xuetao Guo Xuetao Guo Xuetao Guo Xuetao Guo Xuetao Guo Xuetao Guo Xuetao Guo Xuetao Guo Xuetao Guo Xuetao Guo Xuetao Guo Xuetao Guo Xuetao Guo Xuetao Guo Xuetao Guo Xuetao Guo Xuetao Guo

Summary

Researchers investigated how polystyrene microplastics interact with different types of dissolved organic matter, finding that fulvic acid and humic acid adsorb onto microplastics through distinct mechanisms, which influences microplastic transport and transformation in the environment.

Polymers

Microplastics (MPs), as newly emerging pollutants, may interact with dissolved organic matter (DOM) widely present in the environment after entering the environment, thereby influencing the migration and transformation of MPs. The interaction characteristics and mechanism between DOM and MPs are restricted by many factors, and the current mechanism remains unclear. Thus, we explored the combination of MP with different types and compositions of DOM (fulvic acid (FA) and humic acid (HA)). Adsorption experiments revealed that MP has high adsorption affinity for all four DOMs, particularly FA. Meanwhile, the affinity of MP-DOM was also examined using excitation-emission matrix (EEM) analyses and fluorescence quenching method (excitation emission matrix-parallel factor analysis (EEM-PARAFAC)). Aromatic substances and hydrophobic substances dominate all DOM samples. For all DOM types tested, the quenching curve varies considerably with the type and compositions of DOM. In addition, three fluorescent components exhibited significant fluorescence quenching over time. The interaction mechanism of MPs and DOM at the molecular level was further elucidated by utilizing two-dimensional (2D) Fourier transformation infrared (FTIR) correlation spectroscopy (COS) analysis, which revealed that the oxygen-containing functional group in MPs was the most preferred DOM binding structure. This work was facilitated to explore the environmental behavior of MPs and formation of secondary MPs under natural conditions.

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