Abstract
A single pot microwave assisted process was employed for the synthesis of sepiolite-poly(dimethylsiloxane) (SP-PDMS) nanohybrid for removal of Congo red (CR) dye from contaminated water in a batch process. The synthesized nanohybrids were characterized by X-ray diffraction (XRD) and Fourier transform infrared (FTIR) spectroscopy, confirming the nanohybrids formation. The structures of the nanohybrids were confirmed by scanning electron microscopy (SEM), field emission scanning electron microscopy (FESEM), and transmission electron microscopy (TEM) while the specific surface area and pore size were determined by the Brunauer–Emmett–Teller (BET) method using N2 adsorption isotherms. The dye removal process was subjected to kinetic and equilibrium studies, the results of which showed that pseudo-first-order kinetics dominated the adsorption of CR onto the nanohybrid. The equilibrium data were analyzed using Freundlich, Langmuir, Tempkin, Dubinin–Radushkevich, and generalized isotherm models. The nanohybrids ...
Published Version
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call