Fish collagen–polyurethane Hydrogel for tetracycline (TC) adsorptionapplication

This work proposes creating interpenetrating networks (IPN) of hydrogel from Fish collagen peptide (FCP) -polyurethane (PU) in water to develop hydrogels with specific properties for tetracycline (TC) adsorption use.Aqueous PU dispersions can form amide bonds with FCP chains, regulating the structure and water absorptioncapacity of hydrogels. The study found that ۹۸% of Tetracycline can be removed under specific conditions: ۲۵۰minequilibrium time, ۰.۷g absorbent dose, ۲۵mg/L initial Tetracycline concentration, and pH ۶-۷. Thermodynamicinvestigation at ۲۵-۵۵°C showed a decrease in randomness, exothermic nature, and spontaneous adsorption process.Kinetic studies indicated a pseudo second order model fit, and isotherm studies revealed Langmuir model as thebest fit with a maximum adsorption capacity of ۴۰۰.۸ mg g-۱. The results suggest showed good regeneration ability.

کلیدواژه ها:

VCM suspension polymerization ، catalyst ، methanesulfonic acid