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Article ? AI-assigned paper type based on the abstract. Classification may not be perfect — flag errors using the feedback button. Tier 2 ? Original research — experimental, observational, or case-control study. Direct primary evidence. Remediation Sign in to save

Aging mechanism of microplastics with UV irradiation and its effects on the adsorption of heavy metals

Journal of Hazardous Materials 2020 852 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, Ruofan Mao, Xiaoqin Yu, Xiaoqin Yu, Xuetao Guo Mengfan Lang, Ruofan Mao, Mengfan Lang, Mengfan Lang, Xiaomei Yang, Ruofan Mao, Xiaoqin Yu, Mengfan Lang, Xiaoqin Yu, Xiaomei Yang, Ruofan Mao, Xiaomei Yang, Xuetao Guo Xiaomei Yang, Ruofan Mao, Xiaomei Yang, Ruofan Mao, Xuetao Guo Xiaoqin Yu, Xiaoqin Yu, Xiaoqin Yu, Xiaomei Yang, Xiaomei Yang, Xiaomei Yang, Xiaomei Yang, Xiaomei Yang, Xiaomei Yang, Xiaomei Yang, Xiaomei Yang, Xiaomei Yang, Xiaomei Yang, Xiaomei Yang, Xuetao Guo Xuetao Guo Xuetao Guo Xuetao Guo Xuetao Guo Ruofan Mao, Ruofan Mao, Xiaoqin Yu, Xiaoqin Yu, Mengfan Lang, Mengfan Lang, Mengfan Lang, Mengfan Lang, Ruofan Mao, Ruofan Mao, Xiaoqin Yu, Xiaoqin Yu, Mengfan Lang, Mengfan Lang, Mengfan Lang, Mengfan Lang, Xiaomei Yang, Xiaomei Yang, Xiaomei Yang, Xiaoqin Yu, Xuetao Guo Xuetao Guo Xuetao Guo Xuetao Guo Xuetao Guo Xuetao Guo Xuetao Guo Xuetao Guo Xuetao Guo Xuetao Guo Xiaomei Yang, Xiaomei Yang, Xiaomei Yang, Xiaomei Yang, Xiaomei Yang, Xiaomei Yang, Xiaomei Yang, Xiaomei Yang, Renren Wu, Mengfan Lang, Mengfan Lang, Mengfan Lang, Xiaoqin Yu, Xiaoqin Yu, Xiaoqin Yu, Xiaoqin Yu, Mengfan Lang, Mengfan Lang, Mengfan Lang, Xiaoqin Yu, Xiaoqin Yu, Xiaoqin Yu, Xiaoqin Yu, Xiaoqin Yu, Xiaomei Yang, Xuetao Guo Renren Wu, Xuetao Guo Xuetao Guo Renren Wu, Xuetao Guo Xuetao Guo Xuetao Guo Xuetao Guo Xuetao Guo Xiaomei Yang, Xiaomei Yang, Xiaomei Yang, Xuetao Guo Xuetao Guo Xuetao Guo Xuetao Guo Xuetao Guo Xuetao Guo Renren Wu, Xuetao Guo Xuetao Guo Xuetao Guo Xuetao Guo Xiaomei Yang, Xuetao Guo Xiaomei Yang, Xuetao Guo Xuetao Guo Renren Wu, Xuetao Guo Xuetao Guo Xuetao Guo Xuetao Guo Xuetao Guo Xuetao Guo Renren Wu, 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 Xiaomei Yang, Xuetao Guo Xuetao Guo Xuetao Guo Xiaomei Yang, Xiaomei Yang, Xiaomei Yang, Renren Wu, Renren Wu, 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 Xiaomei Yang, Xuetao Guo Xuetao Guo Xuetao Guo Xuetao Guo Xuetao Guo Xuetao Guo Xiaomei Yang, Xuetao Guo Xuetao Guo Xuetao Guo Xuetao Guo Xuetao Guo Xuetao Guo Xuetao Guo Xuetao Guo Xiaomei Yang, Xuetao Guo Xuetao Guo Xuetao Guo Xiaomei Yang, Xuetao Guo Xuetao Guo Xuetao Guo Xiaomei Yang, Xiaomei Yang, Xuetao Guo Xuetao Guo Xiaomei Yang, Xuetao Guo Renren Wu, Xuetao Guo Renren Wu, Xuetao Guo Xuetao Guo Xuetao Guo Xuetao Guo Xuetao Guo Xuetao Guo Xuetao Guo Xiaomei Yang, Xuetao Guo Xuetao Guo Xiaomei Yang, Xuetao Guo Renren Wu, Xuetao Guo Renren Wu, Xuetao Guo Xuetao Guo Xuetao Guo Xuetao Guo Xuetao Guo Xuetao Guo Xiaomei Yang, Xuetao Guo Xuetao Guo Xuetao Guo Xuetao Guo Xuetao Guo Xuetao Guo Xuetao Guo Xuetao Guo Xuetao Guo Xuetao Guo Xuetao Guo

Summary

Researchers aged polystyrene microplastics using UV irradiation under three conditions (air, pure water, seawater) and found that aging changed surface chemistry and increased the microplastics' capacity to adsorb heavy metals, with seawater aging producing the most pronounced surface oxidation.

Polymers
PS
Study Type Environmental

Microplastics are formed by the degradation of plastic wastes under the action of physicochemical mechanisms in environment, and they are becoming a new type of pollutant that is attractings global attention. However, research on the aging characteristics and mechanism of microplastics is limited. The aging mechanism of Polystyrene (PS) with UV irradiation under different conditions (air, pure water and seawater) and the effect of aging on heavy metal adsorption were studied. The results show that PS have different characteristics with UV irradiation under different conditions, and the aging of PS is the most obvious in air. Based on the 2D-COS analysis, different aging mechanisms were identified under different aging conditions, aging sequence of aged PS functional groups in air and water were clearly definited. An isothermal adsorption model shows that aging can significantly increase the adsorption of heavy metals by PS. The adsorption of heavy metals is also affected by different aging methods. Over all, a 2D-COS analysis was an effective method for understanding the aging process of PS. These results further clarify the aging mechanism of PS, and provides a theoretical basis for the assessment of environmental behavior and ecological risk when microplastics and heavy metals coexist.

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