Removal of U(VI) by nano-scale zero valent iron supported on porous organic polymers

This study synthesized nFe 0 on the substrate of porous organic polymer (POM) which was prepared by glutaraldehyde and melamine. The POM-nFe 0 composites were characterized by scanning electron microscopy, Brunner–Emmet–Teller, Fourier transform infrared spectrum, thermogravimetric analysis, powder X-ray diffraction, and X-ray photoelectron spectroscopy. The introduction of POM contributed to enhance the stability of U(IV) nanoparticles which is liable to be oxidized to mobile U(VI) under aerobic condition. According to the batch experiment, the maximum U(VI) removal capacity of POM-nFe 0 was 230 mg/g, which shows great potential in wastewater treatment. Graphic abstract