Based on generating biologically toxic free radical active oxygen and keeping the internal high temperature, CPAO/CN has high anti-biological pollution activity. In addition, the movement rate of molecules in the CPAO/CN is greatly accelerated by the photothermal effect from the “space thermal domain”, thereby improving the ability to extract U( VI) from natural seawater. The “space thermal domain” is formed by the semi-closed bionic insulation foam to raise the temperature around the macro-environmental area, resulting in a great enhancement of the thermal effect of the kinetic process of the adsorption reaction.
Herein, inspired by a thermal insulation honeycomb, a bionic thermal insulation foam with the property of spatial thermal confinement was designed using polyacrylonitrile (PAN) cross-linked dense amine foam (CN). Designing materials with efficient capabilities for extracting uranium (U) from natural seawater and anti-biofouling remains a challenge.
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