Abstract
A novel porous adsorbent, named silver-loaded amidoximated polyacrylonitrile porous nanofibers (Ag@AO-PAN PNF), with both adsorption and antibacterial properties, was designed and synthesized by using polyvinylpyrrolidone (PVP) as porogen, amidoxime group as uranium adsorption group, and nano-silver as antibacterial agent. Results of adsorption experiments in uranium-spiked natural seawater showed that the nanofibers had good adsorption capacity for uranium (the maximum uranium uptake was 34.7 mg/g). On the other hand, Ag@AO-PAN PNF also exhibited excellent antibacterial activity against both E. coli and S. aureus, which could effectively inhibit adhesion of these bacteria to the surface of the adsorbent. The adsorption experiments carried out in bacteria-containing environment also demonstrated that the presence of nano-silver effectively inproved the adsorption capacity of the material towards uranium.
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This work was financially supported by National Natural Science Foundation of China (21876073)
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Du, Z., Qu, C., Meng, X. et al. Preparation of porous amidoximated nanofibers with antibacterial properties, and experiments on uranium extraction from seawater. J Radioanal Nucl Chem 332, 669–682 (2023). https://doi.org/10.1007/s10967-023-08806-7
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DOI: https://doi.org/10.1007/s10967-023-08806-7