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Removal of dyes from water using chitosan hydrogel/SiO2 and chitin hydrogel/SiO2 hybrid materials obtained by the sol–gel method

Biopolymer GelChemical EngineeringEngineeringChitosan Hydrogel/sio2Sol–gel MethodWater PurificationWater TreatmentDyeingSol-gel SynthesisWastewater Treatment