Synthesis of GO/HEMA, GO/HEMA/TiO2, and GO/Fe3O4/HEMA as novel nanocomposites and their dye removal ability

In the present study, the adsorption removal of anionic (MO) and cationic (MB) dyes with GO/HEMA and GO/HEMA/TiO2 and GO/Fe3O4/HEMA nanocomposites as adsorbents was investigated. Characterization of properties was determined by FTIR, XRD, SEM, TEM, EDX, and zeta potential analysis. Parameters affecting the removal of pollutants including dye concentration (0.7 mg/l), contact time (60 min), and temperature (298 degrees K) were investigated. Pollutants removal mechanisms were studied with pseudo-first-order, pseudo-second-order kinetic models as well as Freundlich Langmuir isotherms. Pollutant removal for all three composites was confirmed by the Freundlich isotherm (R-2 = 0.99) and first-order kinetics (R-2 = 0.98).

Automated summary

In this study, the adsorption removal of anionic and cationic dyes using different nanocomposites as adsorbents was investigated, with properties characterized using various analysis methods. The parameters affecting pollutant removal were studied, and the removal mechanisms were determined. The results showed that all three composites effectively removed the dyes.