Efficient selective adsorption of uranium using a novel eco-friendly chitosan-grafted adenosine 5′-monophosphate foam. (1st June 2022)

• Record Type: Journal Article
• Authors: Yang, Lirong; Luo, Xuan; Yan, Lin; Zhou, Yawen; Yu, Shaoqing; Ju, Hui; Wang, Yan; Zhang, Lin
• Is Part Of: Carbohydrate polymers. Volume 285(2022)
• Publication Date: 2022-06-01
• Subjects: Adenosine 5′-monophosphate -- Chitosan -- Efficient selective adsorption -- Uranium -- Eco-friendly; Polysaccharides -- Periodicals; Polysaccharides -- Periodicals; Polysaccharides -- Périodiques; Electronic journals; 547.78
• DOI: 10.1016/j.carbpol.2022.119157
• Languages: English
• ISSNs: 0144-8617

Abstract

Abstract: In the present study, a novel eco-friendly foam (CS-AMP) was successfully prepared by grafting adenosine 5′-monophosphate (AMP) with high biocompatibility onto environment-friendly monomer chitosan (CS). The CS-AMP foam was used to absorb uranium and exhibited an efficient selective adsorption of uranium from aqueous solution and natural seawater. Due to the phosphate group of AMP, the CS-AMP foam shows an excellent adsorption capacity of 311 mg/g (pH 5.0 and 308 K) for uranium, which is much higher than that of CS-PTA foam without modification by AMP. The adsorption process is fitted well with Sips isothermal and pseudo-second-order kinetic models. As a highly selective uranium adsorbent, it is expected to be applied to extract uranium from wastewater and seawater. Graphical abstract: Unlabelled Image