Effects of Physically and Chemically Modified Chitosan-Nano Activated Carbon (Cs-NAC) Beads Fabricated Via Extrusion-Dripping Technique on Removal of Acetaminophen from Water

In this study the development of a biosorbent using chitosan (Cs) and nano activated carbon (NAC) beads through extrusion dripping for elimination of Acetaminophen (ACT) from water was explored. Initially the effects of beading parameters were elaborated. In order to physically modify the beads the effects of using Ultrasound (US) under two different drying conditions i.e. Oven drying and Freeze Drying were investigated. The effects of chemical modification using two surfactants i.e. 3-aminopropyl triethoxysilane (APTES) and hexadecylamine (HDA) were investigated on the performance of the beads in ACT removal. The adsorption data were evaluated using Langmuir and Freundlich isotherms and the kinetics adsorption were analyzed by pseudo-first order and pseudo-second order models.