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Article
Study of Agar Proportions Effect on a Gamma Ray Synthesized Hydrogel
Author(s)
Nour Elhouda Ben Ammar1*, Taib Saied2, Arbi Mejri3, Faouzi Hosni3, Adel Mnif1 and Ahmed Hichem Hamzaoui1
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DOI:10.17265/2161-6213/2016.3-4.008
Affiliation(s)
1. Laboratory of Useful Materials Valuation, National Center for Research in Materials Sciences, Borj Cedria Technopark, BP 73, 8027 Soliman, Tunisia
2. Laboratory of Analytical Chemistry and Electrochemistry, University of Tunis el Manar, Science Campus, 2092 Tunis, Tunisia
3. Treatment Unit by Ionizing Radiation, National Center of Sciences and Nuclear Technology, Sidi Thabet Technopark, BP 72, 2020 Sidi Thabet, Tunisia
ABSTRACT
In this study, we aimed to identify the effect of agar proportion on the synthesized superabsorbent properties based on PVP (Polyvinyl pyrrolidone), poly (ethylene glycol) (PEG) and agar. In a first stage, the study of swelling and deswelling behavior of synthesized hydrogel was done. It was proved that agar acts as a crosslinking inhibitor since it competes with free radicals. The pH versus swelling time was studied. The polymer was characterized by Fourier transform infrared spectra analysis and X-ray Diffraction. The removal of Cu(II) from aqueous solution by the prepared PVP/PEG/agar hydrogel was studied. Also, the influences of pH and contact time were investigated throughout adsorption experiments. The maximum retention capacity was found to be 36.5 mg g-1 for the hydrogel containing 1% of agar. The kinetic parameters were calculated from the experimental data and it was shown that they fit well with pseudo-second-order kinetic model.
KEYWORDS
Hydrogel, PVP, copper, agar, gamma radiation.
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