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Adsorption of triclosan onto different aged polypropylene microplastics: Critical effect of cations

The Science of The Total Environment 2020 192 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.

Xiaowei Wu, Peng Liu, Peng Liu, Xiaowei Wu, Xiaowei Wu, Xiaowei Wu, Xiaowei Wu, Xiaowei Wu, Xiaowei Wu, Xiaowei Wu, Xiaowei Wu, Xiaowei Wu, Xiaowei Wu, Xiaowei Wu, Xiaowei Wu, Peng Liu, Peng Liu, Xiaowei Wu, Peng Liu, Hexinyue Huang, Xiaowei Wu, Xiaowei Wu, Xiaowei Wu, Xiaowei Wu, Xiaowei Wu, Xiaowei Wu, Hexinyue Huang, Hexinyue Huang, Hexinyue Huang, Hexinyue Huang, Hexinyue Huang, Peng Liu, Peng Liu, Peng Liu, Xiaowei Wu, Hexinyue Huang, Peng Liu, Peng Liu, Peng Liu, Hexinyue Huang, Xiaowei Wu, Xiaowei Wu, Xiaowei Wu, Hexinyue Huang, Xiaowei Wu, Hexinyue Huang, Hexinyue Huang, Hexinyue Huang, Hexinyue Huang, Hexinyue Huang, Hexinyue Huang, Hexinyue Huang, Hexinyue Huang, Hexinyue Huang, Hexinyue Huang, Xiaowei Wu, Hexinyue Huang, Peng Liu, Xiaowei Wu, Shixiang Gao Hexinyue Huang, Peng Liu, Peng Liu, Peng Liu, Peng Liu, Xiaowei Wu, Shixiang Gao, Hexinyue Huang, Xiaowei Wu, Xiaowei Wu, Xiaowei Wu, Hexinyue Huang, Hexinyue Huang, Xiaowei Wu, Hexinyue Huang, Hexinyue Huang, Hexinyue Huang, Hexinyue Huang, Xiaowei Wu, Peng Liu, Hexinyue Huang, Hexinyue Huang, Hexinyue Huang, Hexinyue Huang, Shixiang Gao Shixiang Gao, Shixiang Gao, Hexinyue Huang, Hexinyue Huang, Xiaowei Wu, Shixiang Gao Hexinyue Huang, Hexinyue Huang, Shixiang Gao, Xiaowei Wu, Shixiang Gao Shixiang Gao Hexinyue Huang, Hexinyue Huang, Shixiang Gao Shixiang Gao, Shixiang Gao, Shixiang Gao Peng Liu, Shixiang Gao, Shixiang Gao, Shixiang Gao, Shixiang Gao, Shixiang Gao, Shixiang Gao, Xiaowei Wu, Shixiang Gao, Shixiang Gao, Shixiang Gao Shixiang Gao Shixiang Gao Shixiang Gao Shixiang Gao Shixiang Gao Peng Liu, Shixiang Gao, Xiaowei Wu, Shixiang Gao Shixiang Gao, Shixiang Gao, Shixiang Gao, Shixiang Gao

Summary

This study examined how sodium and calcium ions in water influence the adsorption of triclosan onto aged polypropylene microplastics, finding that cation type and concentration altered sorption behavior through electrostatic interactions. The results have implications for understanding how microplastics transport antimicrobial contaminants in natural water systems.

Polymers

Adsorption of organic contaminants onto aged microplastics (MPs) may be important in understanding their transport potential and ecological risks in aquatic environment. Cations of Na and Ca are common electrolytes in water, which can greatly influence the adsorption behavior of MPs by impacting the electrostatic interaction between MPs and organic contaminants. The results of this study showed that aged isotactic polypropylene (iPP) MPs exhibited higher adsorption capacity to triclosan (TCS) than pristine ones, and the sorption affinity was enhanced with the increase of ionic concentrations. The crucial influence of cations on the adsorption behavior of aged MPs mainly depended on the changed properties of TCS and interactions between MPs and TCS. Salting out effect induced the precipitation of TCS from water and facilitated the partition of TCS onto MPs in high salinity water. Besides, compressing electrostatic double layer of MPs via squeezing out effect and bridging effect between functional groups of aged MPs and contaminants may also be significant factors in the sorption process. These findings will be helpful for understanding the role of cations on the transport of pollutants, the fate of MPs and their associated environmental risks in aquatic ecosystems.

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