![]() ![]() Grafting reaction of chitosan-g-poly(acrylic acid)-co-polyaniline (CPANI) was confirmed by Fourier-transform infrared spectroscopy, surface morphology of membranes was characterized by scanning electron microscopy. ![]() The present work reports the development of new chitosan-based membrane by grafting with poly(acrylic acid) and polyaniline by free radical polymerization using ammonium persulfate. The experimental data were fitted well the pseudo-second-order kinetics. Adsorption data were modeled using the pseudo-second-order. Metal ion sorption studies shows that AFHs can be used for removal of Eu3+ ions from aqueous solutions. Desorption studies were also performed in acid media and EDTA, to observe whether the gels can be utilized as reusable tool for the metal ion removal. The adsorption capacity of Eu3+ on the AFHs was 0.89 mM/g. Adsorption equilibrium data were better fitted by a Langmuir isotherm. The effect of relevant parameters, such as contact time, initial pH, and initial metal ion concentration were investigated to determine the optimum sorption conditions. Equilibrium swelling experiments have been performed on the AFHs in metal ion solutions. The diffusion parameters were calculated by swelling kinetics to understand the diffusion mechanism. N-acryloyl-L-phenylalanine and N’-isopropylacrylamide and were crosslinked by N,N-methylene-bis-acrylamide using redox polymerization technique. The present work reports the synthesis of Amino acid functionalized hydrogel networks (AFHs). ![]()
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