Synthesis, characterization and Applications of Novel modified chitosan in Water Treatment. | ||||
| Egyptian Journal of Chemistry | ||||
| Article 54, Volume 65, Issue 10, October 2022, Page 561-575 PDF (1.96 MB) | ||||
| Document Type: Original Article | ||||
| DOI: 10.21608/ejchem.2022.102129.4743 | ||||
 View on SCiNiTO | ||||
| Authors | ||||
El-Refaie Kenawy1; Mohamed Abd AlRaheem Abu Saied2; Ahmed Saafan3; sarah salem  4
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| 1Department of Chemistry, Polymer Research Group, Faculty of Science, Tanta University, Tanta, Egypt | ||||
| 2City of Scientific Research and Technological Applications (SRTA-City) | ||||
| 3Organic chemistry, Faculty of Science,Tanta University,EGYPT | ||||
| 4Organic chemistry, Faculty of Science, Tanta University,EGYPT | ||||
| Abstract | ||||
| Five modified nano materials from chitosan have been prepared and characterized. These materials comprise cross-linked aminated, sulfated, carboxylated and sulfated-carboxylated chitosan. They were applied for both the adsorption of some heavy metal and for some cationic, anionic, and anionic azodyes. The extent of adsorption depends on the selectivity between the modified materials and the desired metal ion. Ag(I) is the most preferable metal ion by all modified materials whereas Cu(II) is preferable by carboxylated- sulfated chitosan. For dye adsorption, the maximum adsorption capacity depended strongly on the modified material. The crosslinked and aminated materials are more selective for anionic dyes whereas the sulfated, carboxylated and carboxylated-sulfated materials are more selective for cationic dyes. | ||||
| Keywords | ||||
| Chitosan; nanocomposite; modified chitosan; Heavy metals removal; Dyes removal | ||||
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