Adsorption of Copper Ions to Secondary Microplastics in Seawater.

Aneta Dorota Pacyna-Kuchta, Jakub Karczewski, Anetta Zioła-Frankowska, Lukasz Wolski, Marcin Łapiński, Kinga Kujawska, Marcin Frankowski

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Article in Molecules (Basel, Switzerland), 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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1 · What the graph read from it

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Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

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4 · The record

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5 · Who and what money

Authors and funding

7 authors.

Aneta Dorota Pacyna-KuchtaDepartment of Biotechnology and Microbiology, Faculty of Chemistry, Gdańsk University of Technology, 11/12 Narutowicza Street, 80-233 Gdańsk, Poland.

Jakub KarczewskiAdvanced Materials Centre, Faculty of Applied Physics and Mathematics, Gdańsk University of Technology, 11/12 Narutowicza Street, 80-233 Gdańsk, Poland.ORCID 0000-0001-9322-7842

Anetta Zioła-FrankowskaFaculty of Chemistry, Adam Mickiewicz University Poznań, Uniwersytetu Poznańskiego 8 Street, 61-614 Poznań, Poland.

Lukasz WolskiFaculty of Chemistry, Adam Mickiewicz University Poznań, Uniwersytetu Poznańskiego 8 Street, 61-614 Poznań, Poland.ORCID 0000-0002-1207-0546

Marcin ŁapińskiAdvanced Materials Centre, Faculty of Applied Physics and Mathematics, Gdańsk University of Technology, 11/12 Narutowicza Street, 80-233 Gdańsk, Poland.ORCID 0000-0002-3283-2886

Kinga KujawskaAdvanced Materials Centre, Faculty of Applied Physics and Mathematics, Gdańsk University of Technology, 11/12 Narutowicza Street, 80-233 Gdańsk, Poland.ORCID 0009-0006-7991-5458

Marcin FrankowskiFaculty of Chemistry, Adam Mickiewicz University Poznań, Uniwersytetu Poznańskiego 8 Street, 61-614 Poznań, Poland.ORCID 0000-0001-6315-3758

Funding

Gdańsk University of Technology DEC-19/1/2022/IDUB/I3b/Ag

6 · The paper itself

Abstract

One of the main sources of secondary microplastics (MPs) in the marine environment is single-use plastic products. However, research on their adsorption capabilities is still limited. In this study, we used a representative set of well-characterized micro-sized fragments, films, and foam to evaluate differences in copper(II) adsorption via a series of batch adsorption experiments. We aimed to understand how the adsorption capacity of Cu(II) differs between a set of secondary MPs in model seawater. We examined the effect of particle size, surface hydrophobicity, and salinity as factors influencing adsorption. The highest adsorption capacity was observed for foam fragments made from a clamshell PS food container followed by a food tray made from PP (591 ± 168 and 353 ± 45 µg/g of MP, respectively). The presence of a higher salinity environment had no negative effect on the adsorption capacity, except that of spherical PS. Our results suggest that the chosen MPs (hard fragments and films) do not have a high ability for Cu(II) adsorption, except for expanded PS and PP films. This study also highlights the difficulties associated with using irregular pieces of post-consumer plastic in model experiments.

Indexed as

adsorptioncopperenvironmental riskmarine litterplastic pollutionsingle-use plastic

Identifiers

PMID42653954

DOI10.3390/molecules31162873

PMCPMC13515476

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