Synthesis of magnetic recoverable electron-rich TCTA@PVP based conjugated polymer for photocatalytic water remediation and disinfection

摘要

In this study, we report the synthesis of magnetic electron-rich CP@Fe3O4 (Conjugated Polymer (CP) = TCTA-PVP-bipyridine) by hydrothermal method. For this aim, the Fe3O4 nanoparticles were incorporated into photoactive TCTA-PVP-bipyridine based Conjugated Polymer. The photo-redox abilities of CP@Fe3O4 and bare CP were tested for oxidation of methylene blue and reduction of Cr(VI) under UV-visible light and visible light (lambda > 420 nm). The CP@Fe3O4 showed a good ability for performing the Fenton-like reaction by adding H2O2 as oxidizing agent. Additionally, reveals high photocatalytic reduction ability of Cr(VI) for CP@Fe3O4 in compare with bare CP. Furthermore the photocatalytic antibacterial ability of CP@Fe3O4 towards E. coli and Pseudomonas Aerogenosa in water was studied. The obtained CFU reduction efficiencies were found about 85% and 90% for E. coli and P. Aeruginosa, respectively. Interestingly the collecting and recyclability of CP@Fe3O4 after photocatalytic reactions were done easily due to its magnetic property.