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In view of the critical concern for the toxic materials accumulation in environment, new materials synthesized from biocompatible feedstock are being investigated for purification technologies. In the present study we… Click to show full abstract
In view of the critical concern for the toxic materials accumulation in environment, new materials synthesized from biocompatible feedstock are being investigated for purification technologies. In the present study we report a new hydrogel as adsorbent for Cu2+ ions under the simulated conditions. Citric acid (CA) was reacted with poly(ethylene glycol) [PEG] via the lipase catalyzed reaction. The PEGylated-CA was characterized with SEM, 1H–NMR and FTIR spectroscopy and evaluated as an adsorbent of Cu2+ ions by variation of adsorption conditions with respect to time, temperature, solution pH and ion concentration. Subsequently, the maximum retention capacity (172.3 g/mg up to five feeds) was evaluated under the optimal adsorption conditions. The material is reusable and reusability studies were carried out up to 10 feeds.
Journal Title: Desalination and Water Treatment
Year Published: 2017
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