Composite Materials For Adsorption of Rare Earth Metal Ions

IF 3.8 4区环境科学与生态学 Q2 ENVIRONMENTAL SCIENCES

Water, Air, & Soil Pollution Pub Date : 2024-09-04 DOI:10.1007/s11270-024-07453-2

Siddhant S. Kalyankar, Varsha Antanitta S, Fuhar Dixit, Karl Zimmermann, Balasubramanian Kandasubramanian

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Abstract

Rare earth elements (REEs) are vital across numerous sectors, from nuclear and architecture to electronics and medicine, due to their unique properties. Meeting the growing demand for REEs necessitates innovative recovery methods from waste and recycling. This review explores the adsorption of REEs using polymer composites, including biopolymers, synthetic polymers, and conducting polymers. These composites demonstrate remarkable adsorption capacity and selectivity for REEs. This review explored several natural and synthetic polymers, composites, and nanocomposites as adsorbents, focusing on chemical structures, kinetics, adsorption capacity, processes, and polarity for REE uptake from aqueous solutions. Notably, benzyl phosphate-based polymers achieve the highest adsorption capacity at 301 mg/g, while polypyrrole sawdust exhibits the lowest at 6 mg/g. Nanocomposites, however, excel with adsorption capacities exceeding 900 mg/g. This review underscores the critical importance of REE recovery and recycling for a sustainable and clean global environment.

Graphical Abstract

Abstract Image

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吸附稀土金属离子的复合材料

稀土元素（REEs）因其独特的性质，在从核工业、建筑业到电子业和医药业等众多领域都至关重要。要满足对稀土元素日益增长的需求，就必须采用创新方法从废料中回收稀土元素并进行循环利用。本综述探讨了利用聚合物复合材料（包括生物聚合物、合成聚合物和导电聚合物）吸附 REEs 的问题。这些复合材料对 REEs 具有显著的吸附能力和选择性。本综述探讨了几种作为吸附剂的天然和合成聚合物、复合材料和纳米复合材料，重点关注从水溶液中吸附 REE 的化学结构、动力学、吸附能力、过程和极性。值得注意的是，磷酸苄基聚合物的吸附容量最高，为 301 毫克/克，而聚吡咯锯屑的吸附容量最低，为 6 毫克/克。然而，纳米复合材料的吸附容量超过了 900 毫克/克。本综述强调了回收和再循环稀土元素对实现可持续和清洁的全球环境至关重要。

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来源期刊

Water, Air, & Soil Pollution 环境科学-环境科学

CiteScore

4.50

自引率

6.90%

发文量

448

审稿时长

2.6 months

期刊介绍： Water, Air, & Soil Pollution is an international, interdisciplinary journal on all aspects of pollution and solutions to pollution in the biosphere. This includes chemical, physical and biological processes affecting flora, fauna, water, air and soil in relation to environmental pollution. Because of its scope, the subject areas are diverse and include all aspects of pollution sources, transport, deposition, accumulation, acid precipitation, atmospheric pollution, metals, aquatic pollution including marine pollution and ground water, waste water, pesticides, soil pollution, sewage, sediment pollution, forestry pollution, effects of pollutants on humans, vegetation, fish, aquatic species, micro-organisms, and animals, environmental and molecular toxicology applied to pollution research, biosensors, global and climate change, ecological implications of pollution and pollution models. Water, Air, & Soil Pollution also publishes manuscripts on novel methods used in the study of environmental pollutants, environmental toxicology, environmental biology, novel environmental engineering related to pollution, biodiversity as influenced by pollution, novel environmental biotechnology as applied to pollution (e.g. bioremediation), environmental modelling and biorestoration of polluted environments. Articles should not be submitted that are of local interest only and do not advance international knowledge in environmental pollution and solutions to pollution. Articles that simply replicate known knowledge or techniques while researching a local pollution problem will normally be rejected without review. Submitted articles must have up-to-date references, employ the correct experimental replication and statistical analysis, where needed and contain a significant contribution to new knowledge. The publishing and editorial team sincerely appreciate your cooperation. Water, Air, & Soil Pollution publishes research papers; review articles; mini-reviews; and book reviews.