Using Nanocomposite Chitosan/Polyvinylpyrrolydine Hydrogel Containing Functionalized Graphene In Water Treatment

Using Chitosan / Polyvinyl pyrrolidine (PVP) blend is taken into consideration for removal of heavy metal ions from water due to biodegradation, solubility in water and very low toxicity. In this study functionalized graphene with Diethylenetriamine (DETA) was added to cross liked chitosan/PVP hydrogel beads to improve adsorption capacity of the Chitosan / Polyvinyl pyrrolidine blend. Thermogravimetric Analyses(TGA), Fourier Transform Infra-Red (FTIR) spectra, and Scanning Electron Microscope(SEM) revealed that the functionalization reaction successfully accomplished. Evaluation of adsorption experiments showed that the positive effect of functionalization on the adsorption behavior of the samples

کلیدواژه ها:

Graphene ، chitosan ، polyvinyl pyrrolidine ، adsorption ، functionalization