Tetracycline adsorption via dye-attached polymeric microbeads

In this study, the adsorption of tetracycline (TC) onto polymeric microbeads was investigated. For purpose, suspension polymerization used to synthesize poly(2-hydroxyethyl methacrylate) [poly(HEMA)] microbeads. Cibacron Blue F3GA (CB) covalently attached poly(HEMA) and were tested as an adsorbent for subsequent TC adsorption. The effects various parameters, such pH value, initial concentration, temperature, contact time, maximum capacity (Q) found be 9.63 mg g-1 at 7.0. results showed that process fast occurred spontaneously within first 5 minute. fitted Freundlich isotherm model. thermodynamic parameters adsorption, enthalpy (∆H°) entropy (∆S°), calculated 69.26 kJ mol-1 0.290 K-1, respectively. Gibbs free energy (∆G°) also in range -11.069 -17.159 with increase temperature from 277 K 298 indicating spontaneous endothermic. revealed could effectively aqueous solution.