期刊
ACS ES&T ENGINEERING
卷 1, 期 12, 页码 1698-1704出版社
AMER CHEMICAL SOC
DOI: 10.1021/acsestengg.1c00272
关键词
microplastics; adhesives; flow cytometry; water; pollution
资金
- NSF EFRI E3P Grant through the National Science Foundation-Emerging Frontiers in Research and Innovation 2020 program [2029251]
- Directorate For Engineering
- Emerging Frontiers & Multidisciplinary Activities [2029251] Funding Source: National Science Foundation
Microplastic pollution is widespread and a major concern, but removing microplastics from water using adhesives shows promising results. This method can efficiently remove up to 99% of microplastics within 5 minutes, offering a potential solution for remediating microplastic pollution in aquatic environments.
Microplastic pollution is omnipresent -having been found in our land, air, food, and water. Over the last two decades, both identifying microplastics and sleuthing their sources has been a major research focus. Moving forward, the next goal should be remediation. Although removing microplastics from the environment is impractical, developing methods that prevent their release into the environment is essential. Herein, we report an approach for removing microplastics from water using a pressure sensitive adhesive. Specifically, we demonstrate that shaking zirconium silicate beads coated with poly(2-ethylhexyl acrylate) in aqueous suspensions containing polystyrene microplastics (10 mu m) can remove up to 99% of the microplastics within 5 min. We show that the adhesive molar mass (ranging from 93-950 kg/ mol) is invariant with respect to removal efficiency at 5 min, as quantified by flow cytometry. Preliminary results suggest these adhesives can bind other microplastics as well, including nonpolar polymers (e.g., polyethylene, micronized rubber) and polar polymers (e.g., nylon, polyethylene terephthalate). Overall, this proof-of-concept study demonstrates a promising approach for remediating microplastics from aqueous suspensions using adhesives.
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