Cu2O nanoparticles grafting onto PLA fibers via electron beam irradiation: bifunctional composite fibers with enhanced photocatalytic of organic pollutants in aqueous and soil systems
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This work provide a new method for the preparation of nanofibers act as bifunctional photocatalytic nano-materials to degrade organic pollutants in water and soil systems effectively. Using PLA fibers as the carrier of Cu2O nanoparticles, Cu2O/PLA composite nanofibers were fabricated by surface modification induced via electron beam irradiation. During this treatment, carbonyl groups and hydroxyl groups from the surface of PLA and Cu2O were conjugated by strong hydrogen bonding effect, while the Cu2O nanoparticles was evenly distributed without agglomeration. Thus obtained composite nanofibers exhibited excellent photocatalytic performance and enhanced antibacterial activities against Staphylococcus aureus and Escherichia coli.
KeywordsElectron beam irradiation Modification Photodegradation Water system Soil system Antibacterial efficiency
This work was supported by the National Natural Science Foundation of China (Nos. 11775138, 11675098 and 41473089), Innovation Program of Shanghai Municipal Education Commission (No. 13YZ017) and Program for Changjiang Scholars and Innovative Research Team in University (No. IRT13078).
Compliance with ethical standards
Conflicts of interest
There are no conflicts to declare.
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