Strategy to combine two functional components: Efficient nano material development for iodine immobilization. (December 2022)

• Record Type: Journal Article
• Authors: Han, Zhen; Lu, Yi; Li, Yuyang; Wu, Rongzhen; Huang, Zhen
• Is Part Of: Chemosphere. Volume 309:Part 1(2022)
• Publication Date: 2022-12
• Subjects: Clean energy -- Iodine adsorption material -- Nanomaterial -- Nuclear waste disposal; Pollution -- Periodicals; Pollution -- Physiological effect -- Periodicals; Environmental sciences -- Periodicals; Atmospheric chemistry -- Periodicals; 551.511
• DOI: 10.1016/j.chemosphere.2022.136477
• Languages: English
• ISSNs: 0045-6535

Abstract

Abstract: The development of effective radioactive iodine adsorption materials from nuclear waste remains a significant challenge due to the drawbacks of the previous technologies such as complex synthesis process, high cost, and low stability. In this work, a Metal Oxidation-Carbon (MOC) composite material was designed and synthesized to solve this problem. The structure, composition, and physicochemical properties of this MOC were characterized to reveal its mesoporous material properties. Experiment results showed that this MOC material contain great physical and chemical adsorption efficiency towards iodine vapor, the adsorption capacity could up to 2647.54 mg/g. And the average desorption rate of 86.57% (in absolute ethanol) further proved its advanced recyclability. Moreover, this mesoporous material has great prospects in industrialization due to its simple one-step synthesis method, well-defined adsorption mechanism, and competitive application property. Graphical abstract: Image 1 Highlights: Industrialization potential achieved by cheap raw materials and one simple hydrothermal synthesis step. High material efficiency with 2647.54 mg/g gaseous iodine adsorption capacity. Combine two material's functions and make them synergy each other by applying active carbon as adhesive. Clear adsorption mechanism exploration and detail optimization process.