Aerogels and cryogels as green sorbents for organic contaminant extraction and chromatographic analysis

Sustainable Chemistry for the Environment Pub Date : 2025-09-01 DOI:10.1016/j.scenv.2025.100287

Ilektra C. Feida , Vasileios D. Alampanos , Justyna Płotka-Wasylka , Dimitra A. Lambropoulou

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Abstract

In recent years, there has been increasing interest in developing more environmentally friendly analytical methods. In this context, microextraction techniques have gained wider application, and novel materials are being researched as potential adsorbents. Among these, aerogels and cryogels stand out due to their exceptional attributes, including high porosity, large surface area, excellent adsorption capacity, and favorable mechanical properties. These materials can be combined with various affinity substances to form composites that interact with a wide range of analytes. This manuscript reviews the numerous applications of aerogels and cryogels in microextraction pretreatment processes, focusing on the extraction of organic pollutants from various matrices prior to liquid chromatography (LC) or gas chromatography (GC) analysis. The extraction methods and analytical parameters are thoroughly discussed, highlighting the environmental benefits of using aerogels and cryogels as green adsorbents. The future directions are also pointed out.

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气凝胶和冷凝胶作为绿色吸附剂用于有机污染物的萃取和色谱分析

近年来，人们对开发更环保的分析方法越来越感兴趣。在这种背景下，微萃取技术得到了更广泛的应用，作为潜在吸附剂的新型材料正在被研究。其中，气凝胶和低温凝胶因其独特的特性而脱颖而出，包括高孔隙率、大表面积、优异的吸附能力和良好的机械性能。这些材料可以与各种亲和物质结合，形成与各种分析物相互作用的复合材料。本文回顾了气凝胶和低温凝胶在微萃取预处理过程中的众多应用，重点介绍了在液相色谱（LC）或气相色谱（GC）分析之前从各种基质中提取有机污染物。深入讨论了提取方法和分析参数，重点介绍了使用气凝胶和冷凝胶作为绿色吸附剂的环境效益。并指出了今后的发展方向。

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来源期刊

Sustainable Chemistry for the Environment

CiteScore

0.40

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0.00%

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