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Synthesis, Characterization and Experimental Studies of Nano Zn–Al–Fe3O4 Blended Alginate/Ca Beads for the Adsorption of Rhodamin B

Author:
Kumar, M., Vijayakumar, G., Tamilarasan, R.
Source:
Journal of polymers and the environment 2019 v.27 no.1 pp. 106-117
ISSN:
1566-2543
Subject:
Fourier transform infrared spectroscopy, Gibbs free energy, adsorption, aqueous solutions, biodegradability, calcium, calcium chloride, enthalpy, entropy, equations, models, nanomaterials, polymerization, sodium alginate, temperature, thermogravimetry, toxicity
Abstract:
In the present study, adsorptive removal of rhodamin-B (RMN-B) from aqueous solution was investigated by using nano Zn–Al–Fe₃O₄ incorporated sodium alginate (SA) beads. SA is a natural polysaccharide, non toxic and biodegradable material. The incorporation of Zn–Al–Fe₃O₄ into SA was done by ionic polymerization method using CaCl₂. A batch mode study was used for the adsorption of RMN-B onto Zn–Al–Fe₃O₄/ alginate beads. The adsorption efficiency of RMN-B was investigated by the following modeling equations like Freundlich, Langmuir, Pseudo-first order, Pseudo-second order, Intraparticle diffusion, Gibbs free energy, Enthalpy and Entropy. The predicted experimental results of various modeling equations were implied that the process follow Langmuir and pseudo-second order equations. The intraparticle diffusion parameters indicate that the diffusion between RMN-B and nano beads were predominant in throughout of process. The surface morphology of nano beads of before and after adsorption were show that RMN-B is strongly adhered on whole surface of the nano material. The FTIR spectrum indicates that the RMN-B strongly adsorbed on the surface and TGA study reveals that the alginate/Zn–Al–Fe₃O₄/Ca material has an excellent temperature withstand capacity.
Agid:
6275005