期刊
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
卷 59, 期 3, 页码 1220-1227出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/anie.201913644
关键词
antibiofouling; black phosphorus; photoinduced effect; uranium extraction
资金
- Hainan Provincial Natural Science Foundation of China [2019CXTD401]
- National Natural Science Foundation of China [41966009, 51775152, 61761016, 21876162]
- National Key R&D program of China [2018YFE0103500]
- Key Research and Development Program of Hainan Province, China [ZDYF2018004]
Based on the photoinduced photothermal, photoelectric, and photocatalytic effects of black phosphorus (BP) nanosheets, a BP-PAO fiber with enhanced uranium extraction capacity and high antibiofouling activity is fabricated by compositing BP nanosheets into polyacrylamidoxime (PAO). The photothermal effect increases the coordination interaction between UO22+ and the functional amidoxime group, and the photoelectric effect produces the surface positive electric field that exhibits electrostatic attraction to the negative [UO2(CO3)(3)](4-), which all increase the capacity for uranium adsorption. The photocatalytic effect endows the adsorbent with high antibiofouling activity by producing biotoxic reactive oxygen species. Owing to these three photoinduced effects, the photoinduced BP-PAO fiber shows a high uranium adsorption capacity of 11.76 mg g(-1), which is 1.50 times of the PAO fiber, in bacteria-containing natural seawater.
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