Polymerization of Acrylic Acid on Chitosan by Gamma Radiation and its Application for the Removal of Metal Ions from Aqueous Solutions
khalil, S., Ghazy, O., Elnaggar, A., Mahdy, S., senna, M. (2022). Polymerization of Acrylic Acid on Chitosan by Gamma Radiation and its Application for the Removal of Metal Ions from Aqueous Solutions. EKB Journal Management System, 65(1), 279-286. doi: 10.21608/ejchem.2021.74367.3672
salwa abdel-sadek khalil; Omayma Ghazy; Amal Elnaggar; Sanaa Mahdy; magdy senna. "Polymerization of Acrylic Acid on Chitosan by Gamma Radiation and its Application for the Removal of Metal Ions from Aqueous Solutions". EKB Journal Management System, 65, 1, 2022, 279-286. doi: 10.21608/ejchem.2021.74367.3672
khalil, S., Ghazy, O., Elnaggar, A., Mahdy, S., senna, M. (2022). 'Polymerization of Acrylic Acid on Chitosan by Gamma Radiation and its Application for the Removal of Metal Ions from Aqueous Solutions', EKB Journal Management System, 65(1), pp. 279-286. doi: 10.21608/ejchem.2021.74367.3672
khalil, S., Ghazy, O., Elnaggar, A., Mahdy, S., senna, M. Polymerization of Acrylic Acid on Chitosan by Gamma Radiation and its Application for the Removal of Metal Ions from Aqueous Solutions. EKB Journal Management System, 2022; 65(1): 279-286. doi: 10.21608/ejchem.2021.74367.3672

Polymerization of Acrylic Acid on Chitosan by Gamma Radiation and its Application for the Removal of Metal Ions from Aqueous Solutions

Egyptian Journal of Chemistry
Article 31, Volume 65, Issue 1, January 2022, Page 279-286  XML PDF (578.37 K)
Document Type: Original Article
DOI: 10.21608/ejchem.2021.74367.3672
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Authors
salwa abdel-sadek khalil1; Omayma Ghazy email 2; Amal Elnaggar3; Sanaa Mahdy4; magdy senna5
1radiation chemistry, atomic energy authority
23 Ahmed Elzommor st, Nasr city Cairo, Egypt
3radiation chemistry, Egyptian atomic energy authority
4Radiation chemistry, Egyptian atomic energy authority
5atomic energy authority
Abstract
Synthesis of green adsorbent materials for the removal of pollutants is a research priority for sustainable environment. A green hydrogel adsorbent based on graft polymerization of acrylic acid on chitosan was performed using different doses of gamma radiation (5, 10, 15, 20, 30 kGy). The formed hydro-gels were characterized by Fourier transform infrared (FTIR) spectroscopy, thermogravimetric analysis (TGA), differential scanning calorimetry (DSC), Gelation percent, swelling in different pH solutions, scanning electron microscopy (SEM). The results indicated the complex formation between chitosan and Polyacrylic acid. The hydrogel exhibit a higher gelation percent with increasing irradiation dose, and a much higher selling ability at alkaline medium. The thermal stability of the hydrogel was found to slightly decrease at 30 kGy. The hydrogel prepared at 20 kGy exhibited the highest thermal stability. The hydro-gels were applied for the removal of Cu2+, Co2+ ions from simulated water solutions, and showed potential results. The electron spin resonance (ESR) measurements to absorbed Cu2+ indicated that the polymer active groups were regarded as strong field ligand on Cu2+.
Keywords
Chitosan; Acrylic acid; Grafting; Gamma radiation; sorption; metal chelation
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