Journal
POLYMER CHEMISTRY
Volume 11, Issue 37, Pages 6066-6072Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/d0py00802h
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Funding
- National Natural Science Foundation of China (NSFC) [41573106]
- Wuhan Institute of Technology for the 11th Graduate Education Innovation Fund [CX2019168]
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Some new chitosan-based fluorescent hydrogels have been successfully prepared by grafting coumarin derivatives onto chitosanviaa Schiff base forming reaction or acid amine condensation reaction. It is worth noting that hydrogels synthesized by the Schiff base forming reaction can be used as a good fluorescent sensor for the selective recognition, detection and adsorption of Fe(2+)ions in aqueous solution. Among them, the adsorption efficiency of 1 g of a fluorescent hydrogel to Fe(2+)ions can reach 63.2 mg. In addition, after being further modified, hydrogels still retain the ability to identify and adsorb Fe2+. Therefore, this probe optimizes the synthetic route to chitosan-based fluorescent sensors and expands the practical application value of fluorescent hydrogels.
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