I N this article, we focused on using low-cost bio-adsorbents such as chitosan from shrimp & crabs shells waste, and amorphous carbon thin film ACTF from microcrystalline cellulose waste, to prepare a new composite (ACTF/C) for removal of methylene blue (MB) dye from aqueous solution.ACTF/C composite was prepared via a novel ultrasonic co-precipitation method instead of traditional chemical vapor ...