Design and synthesis of amine grafted graphene oxide encapsulated chitosan hybrid beads for defluoridation of water

Antonysamy Jeyaseelan; Norah Salem Alsaiari; Khadijah Mohammedsaleh M Katubi; Mu Naushad; Natrayasamy Viswanathan

doi:10.1016/j.ijbiomac.2021.05.132

Design and synthesis of amine grafted graphene oxide encapsulated chitosan hybrid beads for defluoridation of water

Int J Biol Macromol. 2021 Jul 1:182:1843-1851. doi: 10.1016/j.ijbiomac.2021.05.132. Epub 2021 May 21.

Authors

Antonysamy Jeyaseelan¹, Norah Salem Alsaiari², Khadijah Mohammedsaleh M Katubi², Mu Naushad³, Natrayasamy Viswanathan⁴

Affiliations

¹ Department of Chemistry, Anna University, University College of Engineering - Dindigul, Dindigul 624 622, Tamilnadu, India.
² Department of Chemistry, College of Science, Princess Nourah bint Abdulrahman University, Riyadh 11671, Saudi Arabia.
³ Advanced Materials Research Chair, Department of Chemistry, College of Science, Kind Saud University, Riyadh 11451, Saudi Arabia; Yonsei Frontier Lab, Yonsei University, Seoul, Republic of Korea.
⁴ Department of Chemistry, Anna University, University College of Engineering - Dindigul, Dindigul 624 622, Tamilnadu, India. Electronic address: drnviswanathan@gmail.com.

PMID: 34029583
DOI: 10.1016/j.ijbiomac.2021.05.132

Abstract

The promising adsorbent like graphene oxide (GO), chitosan (CS) and amine functionalized graphene oxide (AGO) decorated chitosan (CS) namely AGO@CS composite beads was efficiently prepared for defluoridation studies. The prepared AGO@CS composite beads possess enriched defluoridation capacity (DC) of 4650 mgF^- kg^-1. Batch method was used to optimize the maximum DC of AGO@CS composite beads. The physicochemical properties of AGO@CS composite beads were explored by numerous instrumental techniques viz., FTIR, Raman, XPS, SEM and TGA investigation. The experimental values of AGO@CS composite beads for fluoride removal at various temperature conditions were assessed with adsorption isotherms, kinetic and thermodynamic studies. The possible defluoridation mechanism of AGO@CS beads was mostly proposed that electrostatic attraction. The reusability and field investigation results of AGO@CS beads shows they are regenerable and applicable at field circumstances.

Keywords: Aminated graphene oxide; Chitosan; Defluoridation.

MeSH terms

Adsorption
Amines / chemistry*
Chitosan / chemical synthesis*
Chitosan / chemistry
Fluorides / isolation & purification*
Graphite / chemical synthesis*
Graphite / chemistry
Hydrogen-Ion Concentration
Ions
Kinetics
Microspheres*
Photoelectron Spectroscopy
Spectroscopy, Fourier Transform Infrared
Spectrum Analysis, Raman
Temperature
Thermogravimetry
Time Factors
Water / chemistry*
Water Pollutants, Chemical / isolation & purification*

Substances

Amines
Ions
Water Pollutants, Chemical
graphene oxide
Water
Graphite
Chitosan
Fluorides