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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. Marine & Wildlife Remediation Sign in to save

The effect of temperature on the U-232 and Am-241 adsorption by PN6 microplastics in aqueous solutions.

Global NEST Journal 2023 4 citations ? Citation count from OpenAlex, updated daily. May differ slightly from the publisher's own count.
Ioannis Ioannidis, Ioannis Anastopoulos, Ioannis Pashalidis, Ali, E Khan, I Ilahi, D Brennecke, B Duarte, F Paiva, I Caador, J Canning-Clode, Y Didovets, M Brela, Georgiou, G Raptopoulos, M Papastergiou, P Paraskevopoulou, N Hartmann, S Rist, J Bodin, L Jensen, S Schmidt, P Mayer, A Meibom, A Baun, K Giannakopoulos, C Dosche, D Giannakoudakis, M Arkas, K Triantafyllidis, I Ioannidis, A Xenofontos, T Kiliari, V Kinigopoulou, I Pashalidis, D Kalderis, I Anastopoulos, T Kurniawan, A Haider, H Ahmad, A Mohyuddin, H Aslam, S Nadeem, M Javed, M Othman, H Goh, K Chew, H Luo, C Liu, D He, J Xu, J Sun, J Li, X Pan, P Rose, M Jain, N Kataria, P Sahoo, V Garg, A Yadav, P Smedley, D Kinniburgh, Y Tang, Y Liu, Y Liu, Y Chen, W Zhang, J Zhao, S He, C Yang, T Zhang, C Tang, C Zhang, Z Yang, P Vagholkar, H Wang, J Zhu, Y He, J Wang

Summary

Researchers investigated the effect of temperature on the adsorption of uranium-232 and americium-241 by polyamide-6 (PN6) microplastics in aqueous solutions, including seawater and wastewater, at picomolar concentrations. The study found that temperature significantly influences radionuclide uptake by microplastics, with implications for the transport and fate of radioactive contaminants in aquatic environments.

Study Type Environmental

The effect of temperature on the adsorption of U-232 and Am-241 by PN6 has been investigated in laboratory and environmental water samples (e.g. seawater and waste water) in the picomolar concentration range. Generally, increasing temperature favors radionuclide adsorption, indicating that radionuclide binding by PN6 is an endothermic and entropy-driven process. In environmental waters, Kd values are significantly lower than the corresponding values in de-ionized water solutions, because of the presence of various cations (e.g., Ca2+, Fe2+) that compete the radionuclide adsorption by PN6 and the presence of complexing anions (e.g. CO32-), which complex and stabilize the actinide cations in solution.

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