ABSTRACT

Strategic elements, such as rare earth elements, play a critical part in industry, especially in the production of high-tech materials. Major global industries developed a strong dependence on rare earth materials. Every year, innovations appear in sectors such as modern technology, green energy, or communication technologies needing more strategic metals to increase in the investment profitability. One of the effective extraction methods for rare earth metals in low concentrations is the adsorption process. It has a high selectivity and high efficiency reducing the volume of pollutants in the environment. Many adsorbents from simple materials in nature to complex nanocomposite materials have been described in the literature. In this review, the research works with various adsorbent materials have been described for the extraction and separation of rare earth elements from aqueous solutions or wastewater. In addition, the extraction efficiency of the developed adsorbents is discussed. The trend is illustrated in the application of new materials with high adsorption capacity for the production of rare earth elements.

摘要

战略元素，如稀土元素，在工业，特别是在高科技材料的生产中发挥着关键作用。全球主要产业对稀土材料的依赖性很强。每年，现代技术、绿色能源或通信技术等领域都会出现创新，需要更多战略金属来提高投资盈利能力。吸附法是提取低浓度稀土金属的有效方法之一。它具有高选择性和高效率，减少环境中污染物的体积。文献中已经描述了从自然界中的简单材料到复杂的纳米复合材料的许多吸附剂。在这次审查中，已经描述了使用各种吸附剂材料从水溶液或废水中提取和分离稀土元素的研究工作。此外，还讨论了开发的吸附剂的提取效率。这一趋势体现在具有高吸附能力的新材料在稀土元素生产中的应用。