In this study, the bio-nanocomposite composed of chitosan and nanoclay was prepared by solution intercalation method. The membrane was subsequently fabricated by dry/wet phase separation technique. The structure of bio-nanocomposite was characterized by Fouriertransform infrared spectroscopy (FT-IR) and X-ray diffraction (XRD) and scanning electron microscope (SEM). | Preparation of bio-nanocomposite membrane for methylene blue adsorption