Vakili, Mohammadtaghi and Amouzgar, Parisa and Cagnetta, Giovanni and Wang, Baozhen and Guo, Xiaogang and Mojiri, Amin and Zeimaran, Ehsan and Salamatinia, Babak (2019) Ultrasound-Assisted Preparation of Chitosan/Nano-Activated Carbon Composite Beads Aminated with (3-Aminopropyl)Triethoxysilane for Adsorption of Acetaminophen from Aqueous Solutions. Polymers, 11 (10). p. 1701. ISSN 2073-4360, DOI https://doi.org/10.3390/polym11101701.
Full text not available from this repository.Abstract
A composite chitosan/nano-activated carbon (CS-NAC) aminated by (3-aminopropyl) triethoxysilane (APTES) was prepared in the form of beads and applied for the removal of acetaminophen from aqueous solutions. NAC and APTES concentrations were optimized to obtain a suitable adsorbent structure for enhanced removal of the pharmaceutical. The aminated adsorbent (CS-NAC-APTES beads) prepared with 40% w/w NAC and 2% v/v APTES showed higher adsorption capacity (407.83 mg/g) than CS-NAC beads (278.4 mg/g). Brunauer-Emmett-Teller (BET) analysis demonstrated that the surface area of the CS-NAC-APTES beads was larger than that of CS-NAC beads (1.16 times). The adsorption process was well fitted by the Freundlich model (R2 > 0.95), suggesting a multilayer adsorption. The kinetic study also substantiated that the pseudo-second-order model (R2 > 0.98) was in better agreement with the experimental data. Finally, it was proved that the prepared beads can be recycled (by washing with NaOH solution) at least 5 times before detectable performance loss. © 2019 by the authors.
| Item Type: | Article |
|---|---|
| Funders: | Yangtze Normal University, Monash University Malaysia, Ministry of Education Malaysia (MOE) under the FRGS scheme (grant no. FRGS/2/2013 TK05/MUSM/03/1) |
| Uncontrolled Keywords: | chitosan; nano-activated carbon; composite beads; APTES; acetaminophen adsorption |
| Subjects: | R Medicine T Technology > TA Engineering (General). Civil engineering (General) T Technology > TP Chemical technology |
| Divisions: | Faculty of Engineering |
| Depositing User: | Ms. Juhaida Abd Rahim |
| Date Deposited: | 05 Dec 2019 08:26 |
| Last Modified: | 05 Dec 2019 08:26 |
| URI: | http://eprints.um.edu.my/id/eprint/23211 |
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