期刊
JOURNAL OF HAZARDOUS MATERIALS
卷 389, 期 -, 页码 -出版社
ELSEVIER
DOI: 10.1016/j.jhazmat.2019.121854
关键词
Zwitterionic fluorinated polymers; Bi5O7I; Photocatalytic; Marine antifouling
资金
- National Natural Science Foundation of China [21871078, 51672073]
- Natural Science Foundation of Heilongjiang Province [B2018010, H2018012]
- Heilongjiang Postdoctoral Startup Fund [LBH-Q14135]
- University Nursing Program for Young Scholars with Creative Talents in Heilongjiang Province [UNPYSCT2016018]
- Domain Foundation of Equipment Advance Research of 13th Five-year Plan [61409220419]
Herein, several novel composite films consisting of three-dimensional (3D) Bi5O7I flower-like shaped microsphere and zwitterionic fluorinated polymer (ZFP) were successfully fabricated with the aim of achieving high anti-fouling performance. The prepared Bi5O7I flower-like shaped microsphere particles with diameters in the range of 2 similar to 3 mu m were uniformly distributed on the surface and in the internal of ZFP. Benefiting from the hydration layer formed by the ZFP and the efficient photocatalytic performance of Bi5O7I flower-like microsphere, the resultant optimized Bi5O7I/ZFP composite film exhibited an excellent diatom anti-settling performance and a high antibacterial rate of 99.09% and 99.66% towards Escherichia coli and Staphylococcus aureus. In addition, the composite films possessed the strengthened visible light absorption, the effectively separation and transfer of the photo-induced electrons and holes, the large number of hydroxyl ((OH)-H-center dot) radicals and superoxide radicals (O-2(center dot-)) all in Bi5O7I/ZFP systems, all of which were beneficial for the photocatalytic antifouling activity. More importantly, the synergistic hydration-photocatalytic effect of the Bi5O7I/ZFP composite films are answerable for the improvement of the antifouling property compared to the control. Thus, the synergistic hydration-photocatalytic contribution of Bi5O7I/ZFP composite film will shows promise for potential application in marine antifouling.
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