Novel nanogels based on hydroxypropyl cellulose–poly(itaconic acid) for adsorption of methylene blue from aqueous solution: process modeling and optimization using response surface methodology

摘要: The present work studies the adsorptive removal of methylene blue (MB) dye from aqueous solution using a novel biocompatible adsorbent based on hydroxypropyl cellulose (HPC) and itaconic acid nanogels. was characterized scanning electron microscopy, Fourier transform infrared spectroscopy dynamic light scattering analyses. Response surface methodology used to modeling optimization adsorption process. A second-order empirical relationship between capacity independent variables (pH solution, contact time concentration) obtained. results design experiments demonstrated that predicted values were well fitted with experimental data where coefficient determination (R2) equaled 0.9861. Pareto analysis for identification factors effect system revealed initial concentration MB most effective parameter. Maximum efficiency (99.9%) achieved at optimum parameters pH, concentration, 5.6, 130 mg L−1, 5 min, respectively. Furthermore, Temkin isotherm pseudo-second-order kinetic model. Consequently, it found out HPC–PIA nanogels high (nearly 761 mg g−1) can be suitable cationic dyes textile colored wastewaters.