Novel sheet ‐like bismuth subcarbonate‐zinc ferrite (Bi2O2CO3/ZnFe2O4) magnetically recyclable nanocomposites: Synthesis, characterization and enhanced catalytic performance for the reduction of nitrophenols and nitroanilines

Sheet –like Bi2O2CO3/ZnFe2O4 magnetic nanocomposites containing different amounts of magnetic ZnFe2O4 nanoparticles were successfully prepared by a simple hydrothermal route and applied as a novel magnetically recoverable catalyst for the reduction of nitrophenols and nitroanilines by using NaBH4 in aqueous solution and at room temperature. Under the optimized conditions, all of nitro compounds were reduced completely into their amino derivatives within 16 –30 min. Sheet –like Bi2O2CO3/ZnFe2O4 magnetic nanocomposites (denoted as BOC ‐ZFO) with different amounts of magnetic ZnFe2O4 (ZFO) nanoparticles were successfully produced by a simple hydrothermal route. X ‐ray diffraction (XRD), Fourier transform infrared (FT‐IR) spectroscopy, scanning electron microscopy (SEM), transmission electron microscopy (TEM), atomic force microscopy (AFM), energy dispersive X‐ray spectroscopy (EDX), UV–vis diffuse reflectance spectroscopy (UV–vis DRS), vibrating sa mple magnetometer (VSM), and N2 adsorption –desorption examination were utilized to analyze the structure, morphology, size, phase composition, optical and magnetic properties of the synthesized nanocomposites. The results demonstrated the successful deposition of uniform ZFO nanoparticles onto the surface of sheet–like BOC nanostructure s. Then, the catalytic activity of magnetic BOC/ZFO nanocamposites was investigated for the reduction of 4‐nitrophenol (4‐NP) to 4‐aminophenol (4‐AP) by using sodium boro...
Source: Applied Organometallic Chemistry - Category: Chemistry Authors: Tags: FULL PAPER Source Type: research