Nuclear energy, a rapidly advancing clean energy source, generates significant amounts of radioactive waste, including radioactive nuclides such as cesium (Cs), strontium (Sr), and uranyl (UO ). Among these, Sr is particularly concerning due to its long half-life, high mobility in aqueous environments, and its toxic effects on both human health and ecosystems. Its radioactive decay produces beta particles, posing significant environmental and public health risks, especially in the context of nuclear waste disposal. Recently, ion exchange has emerged as one of the most effective methodologies to deal with this challenge. Consequently, ion-exchange materials have become a hot topic in contemporary research. This review summarizes the latest advancements in the removal of critical radioactive ions, particularly Sr, using ion-exchange materials. It provides a comprehensive overview of the structures and properties of various ion-exchange materials, explaining their ion-exchange characteristics and exploring the complex relationship between structure and performance. Key considerations discussed include identifying cations that are most amenable to exchange within interlayer channels, evaluating the impact of channel dimensions on material efficiency, and strategies to enhance the ion-exchange capabilities of intercalation compounds. These factors are essential for achieving high selectivity and rapid adsorption kinetics in ion-exchange processes for Sr.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1002/asia.202401320 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Insight into the Specific Adsorption of Cu(II) by a Zinc-Based Metal-Organic Framework Mediated via a Proton-Exchange Mechanism.
Langmuir
March 2025
China Guangxi Key Laboratory of Petrochemical Resource Processing and Process Intensification Technology, School of Chemistry and Chemical Engineering, School of Resources, Environment and Materials, Guangxi University, Nanning 530004, China.
In the context of scarce metal resources, the one-step separation and recovery of high-value copper metal ions from secondary resources is of significant importance and presents substantial challenges. This study identified a Zn-based triazole MOF (Zn(tr)(OAc)) with accessible and noncoordinated terminal hydroxyl groups within its framework. The Zn(tr)(OAc) surpasses most currently reported Cu-specific MOF adsorbents regarding adsorption capacity and Cu selectivity.
View Article and Find Full Text PDFResearch Advances in Ion Exchange of Halide Perovskites.
Nanomaterials (Basel)
February 2025
Institute of Polymer Optoelectronic Materials and Devices, Guangdong Basic Research Center of Excellence for Energy & Information Polymer Materials, State Key Laboratory of Luminescent Materials and Devices, Guangdong Provincial Key Laboratory of Luminescence from Molecular Aggregates, South China University of Technology, Guangzhou 510640, China.
In recent years, halide perovskite materials have been extensively studied by researchers due to their excellent optoelectronic characteristics. Unlike traditional semiconductors, halide perovskites possess unique ionic crystal structures, which makes it easier to perform facile composition engineering to tailor their physical and chemical properties. Ion exchange is a popular post-treatment strategy to achieve composition engineering in perovskites, and various ion exchange processes have been used to modify the structural and functional features of prefabricated perovskites to meet the requirements of desired applications.
View Article and Find Full Text PDFFeCo: Hysteresis, Pseudo-Critical, and Compensation Temperatures on Quasi-Spherical Nanoparticle.
Nanomaterials (Basel)
February 2025
Facultad de Ciencias Básicas, Departamento de Física y Electrónica, Universidad de Córdoba, Monteria 230002, Colombia.
We investigated the hysteresis, pseudo-critical, and compensation behaviors of a quasi-spherical FeCo alloy nanoparticle (2 nm in diameter) using Monte Carlo simulations with thermal bath-type algorithms and a 3D mixed Ising model. The nanostructure was modeled in a body-centered cubic lattice (BCC) through the following configurations: spin S=3/2 for Co and Q=2 for Fe. These simulations reveal that, under the influence of crystal and magnetic fields, the nanoparticle exhibits compensation phenomena, exchange bias, and pseudo-critical temperatures.
View Article and Find Full Text PDFOlefin selectivity of K-Mn promoters on CoFe-ZSM-5 based catalyst in CO hydrogenation.
Front Chem
February 2025
South African Institute for Advanced Materials Chemistry, University of Western Cape, Cape Town, South Africa.
The conversion of carbon dioxide (CO), a major greenhouse gas, into light olefins is crucial for mitigating environmental impacts and utilizing non-petroleum-based feedstocks. Thermo-catalytic CO transformation into valuable chemicals offers a promising solution to this challenge. This study investigates the effect of potassium (K) and manganese (Mn) promoters on CO conversion and CH selectivity over CoFe-ZSM-5 zeolites.
View Article and Find Full Text PDFA novel crosslinked chitosan material modified by quaternary ammonium group for efficient adsorption of bromide ions from wastewater.
Int J Biol Macromol
March 2025
School of Chemistry and Chemical Engineering, University of Jinan, 250022 Jinan, PR China. Electronic address:
Recovering bromide ions from wastewater can not only alleviate the shortage of bromine resources but also solve the problem of bromine pollution. However, there is no efficient method for selective extraction of bromide ions from bromine-containing wastewater up to now. In this paper, chitosan was acidified into a gel to extend its molecular chain, modified by quaternary ammonium salt functional groups, and then crosslinked to obtain a new adsorption material.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!