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US 2026/0091992 A1Published application
Modified chitosan polymers for dye-contaminated water purification
AssigneeKing Fahd University of Petroleum and Minerals
InventorsMahmoud Atef ABDULHAMID, Ibtisam Ibrahim BINSHARFAN
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Abstract
A method of purifying dye-contaminated water. The method includes alkylating a chitosan backbone of Formula 1 with a fatty acid chloride to obtain an adsorptive polymer matrix formed of a modified chitosan polymer. This matrix is characterized by a sponge-like structure, formed by repeating units of the chitosan backbone. The resulting adsorptive polymer matrix is then mixed with the dye-contaminated water and agitated to facilitate the removal of dye from contaminated water.
Claims20
A method of purifying dye-contaminated water, comprising:
- alkylating a chitosan backbone of Formula 1 with a fatty acid chloride to obtain an adsorptive polymer matrix formed of a modified chitosan polymer having repeating units of the chitosan backbone
- and
- mixing the adsorptive polymer matrix with the dye-contaminated water while agitating at a temperature 15 to 35° C. to contact the adsorptive polymer matrix with the dye-contaminated water,
- wherein the adsorptive polymer matrix is in the form of a sponge,
- wherein R represents an alkyl chain comprising 5 to 8 carbons, and
- wherein n represents a positive integer greater than 0.
3 more elements
Dependencies are inferred from the claim text.