Ferrocene-based porous organic polymer for photodegradation of methylene blue and high iodine capture

A new ferrocene-based porous organic polymer (named FcTz-POP) was rationally designed and synthesized. With abundant ferrocene and triazine blocks, FcTz-POP is a versatile functional material that with porous structure, high electron density and excellent stability. UV–Vis absorption spectra showed FcTz-POP exhibited a significant coverage of the solar irradiance spectrum. Photocatalytic experiments proved that FcTz-POP was highly efficient for methylene blue (MB) degradation under visible light irradiation at neutral pH. The effects of the initial MB, H 2 O 2 concentrations, pH value and ion strength on MB degradation were studied. The catalytic mechanism of FcTz-POP was also proposed. In addition, FcTz-POP possessed an outstanding and reversible adsorption ability for iodine vapor with the uptake value of 2.64 g g −1 because of the strong charge-transfer interaction between the polymer and iodine molecules. These results may provide a guidance for the design of novel POPs for photocatalytic degradation of organic dyes and harmful volatile substances capture.