Ultrasound-Assisted Preparation of Chitosan/Nano-Activated Carbon Composite Beads Aminated with (3-Aminopropyl)Triethoxysilane for Adsorption of Acetaminophen from Aqueous Solutions

Vakili M 1 , Amouzgar P 2 , Cagnetta G 3 , Wang B 4 , Guo X 5 , Mojiri A 6 Show all authors , Zeimaran E 7 , Salamatinia B 8

Affiliations 

  • 1 Green Intelligence Environmental School, Yangtze Normal University, Chongqing 408100, China. mvakili1981@yahoo.com
  • 2 Discipline of Chemical Engineering, School of Engineering, Monash University Jalan Lagoon Selatan, Bandar Sunway, Selangor 47500, Malaysia. parisa.amouzgar@gmail.com
  • 3 State Key Joint Laboratory of Environment Simulation and Pollution Control, Beijing Key Laboratory for Emerging Organic Contaminants Control, School of Environment, Tsinghua University, Beijing 100084, China. gcagnetta@mail.tsinghua.edu.cn
  • 4 Green Intelligence Environmental School, Yangtze Normal University, Chongqing 408100, China. 20170076@yznu.cn
  • 5 College of Chemistry and Chemical Engineering, Yangtze Normal University, Chongqing 408100, China. guoxiaogang0528@126.com
  • 6 Department of Civil and Environmental Engineering, Graduate School of Engineering, Hiroshima University, Higashihiroshima 739-8527, Japan. amin.mojiri@gmail.com
  • 7 Department of Biomedical Engineering, Faculty of Engineering, University of Malaya, Kuala Lumpur 50603, Malaysia. ehsanzeimaran@gmail.com
  • 8 Discipline of Chemical Engineering, School of Engineering, Monash University Jalan Lagoon Selatan, Bandar Sunway, Selangor 47500, Malaysia. babak.salamatinia@monash.edu
Polymers (Basel), 2019 Oct 16;11(10).
PMID: 31623271 DOI: 10.3390/polym11101701

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.

* Title and MeSH Headings from MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.

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