Capture of iodide from wastewater by effective adsorptive membrane synthesized from MIL-125-NH2 and cross-linked chitosan. (1st March 2020)

• Record Type: Journal Article
• Authors: El-Shahat, Mahmoud; Abdelhamid, Ahmed E.; Abdelhameed, Reda M.
• Is Part Of: Carbohydrate polymers. Volume 231(2020)
• Publication Date: 2020-03-01
• Subjects: Chitosan -- Titanium based metal-organic frameworks -- Epichlorohydrine -- Iodine -- Adsorption property; Polysaccharides -- Periodicals; Polysaccharides -- Periodicals; Polysaccharides -- Périodiques; Electronic journals; 547.78
• DOI: 10.1016/j.carbpol.2019.115742
• Languages: English
• ISSNs: 0144-8617

Abstract

Highlights: The chemical and physical stability of MIL-125-NH2 @Chitosan films were studied. Surprising performance of MIL-125-NH2 @Chitosan in removal of iodine was detected. The kinetic data fit best in the pseudo-second order model of adsorption. Both chitosan and MIL-125-NH2 in synthesized films displays a significant role in the adsorption process. Abstract: The mainly nuclear waste is radioactive iodine ( 129 I or 131 I) so its disposal have great significance to produce safe water. Porous metal-organic works (MOFs) have awesome potential as high-effective adsorbents for water treatment. In any case, destitute separation limits their viable application. All in all, we worked on the development of MOFs with cross linked chitosan as a promising adsorbent material for the remediation of environmental water polluted by iodine. Due to the drawbacks of current adsorbents such as low uptake capacity, high cost, and non-recyclability; a novel cross-linked chitosan-MOF composite was synthesized and used in the adsorptive removal of iodine from wastewater. The novel composite shows high iodine removal capacity 399.68 mg g −1 at room temperature. The cross-linked chitosan-MOF composite shows chemical and thermal stability, high removal efficiency for capture of iodine from wastewater and furthermore good recyclability.