Semiconducting indolocarbazole based polymer decorated with magnetic ferrofluid for efficient Cr(VI) removal

A new polyindolocarbazole based polymer viz; ICZP4 has been synthesized via Suzuki cross coupling reaction. Subsequently, it has been modified as a semiconducting magnetic polymer hybrid (ICZP4F) with the assistance of a magnetic ferrofluid for the removal of Cr (VI) ions from waste streams. The characterization of ICZP4 has been done through FTIR, H-1 NMR,C-13 NMR, GPC examinations. The hybrid material's (ICZP4F) physical characteristics were evaluated by XRD, FTIR, SEM, and magnetic susceptibility measurements. The ICZP4F has been identified as a powerful adsorbent for toxic Cr(VI) ions with 91% separation efficiency; achieved at a rate of 122 mg/g at a pH of 2. The isotherm analysis indicates that the adsorption process follows the Freundlich model with a regression coefficient R-2 = 0.999. The adsorptive removal efficiency of the hybrid has been explained based on the synergistic effect between ICZP4 and the magnetite present in the ferrofliud.