Design strategies and advantages of metal-organic frameworks@ lignocellulose-based composite aerogel for CO2 capture: A review

IF 8.1 1区工程技术 Q1 ENGINEERING, CHEMICAL

Separation and Purification Technology Pub Date : 2024-09-26 DOI:10.1016/j.seppur.2024.129878

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Abstract

Global warming induced by greenhouse gas emissions represents one of the most significant challenges of our time. In response to this issue, extensive research is being conducted on capture and storage of carbon dioxide (CO₂) from stationary carbon sources. Metal-organic Frameworks (MOFs) are widely recognized for their efficacy in gas adsorption and separation due to their remarkable structural integrity, high porosity, and versatility. However, the crystalline and powdered forms of MOFs often limit their practical applications because of their inherent hardness and brittleness. Lignocellulose composite aerogels (LCG) possess high porosity and a substantial specific surface area. Their three-dimensional network facilitates the effective embedding of MOFs crystals within the pores, thereby minimizing the loss of MOFs. This characteristic positions LCG as ideal substrates for enhancing the separation and adsorption performance of CO₂ capture. This paper reviews the recent advancements in MOFs@Lignocellulose-based composite aerogel (MOFs@LCG), focusing on the preparation method, interaction mechanisms, strategies for improving adsorption performance, and applications in CO₂ capture. This review presented herein are significant for advancing research and development in the field of CO₂ adsorption and separation.

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用于二氧化碳捕集的金属有机框架@木质纤维素基复合气凝胶的设计策略和优势：综述

温室气体排放导致的全球变暖是当代最重大的挑战之一。为了应对这一问题，人们正在对固定碳源中二氧化碳（CO2）的捕集与封存进行广泛的研究。金属有机框架（MOFs）因其出色的结构完整性、高孔隙率和多功能性，在气体吸附和分离方面的功效得到了广泛认可。然而，由于其固有的硬度和脆性，MOFs 的结晶和粉末形式往往限制了其实际应用。木质纤维素复合气凝胶（LCG）具有高孔隙率和巨大的比表面积。它们的三维网络有利于将 MOFs 晶体有效嵌入孔隙中，从而最大限度地减少 MOFs 的损失。这一特性使 LCG 成为提高二氧化碳捕获的分离和吸附性能的理想基质。本文回顾了 MOFs@木质纤维素基复合气凝胶（MOFs@LCG）的最新进展，重点介绍了其制备方法、相互作用机制、提高吸附性能的策略以及在二氧化碳捕集中的应用。本综述对推动二氧化碳吸附和分离领域的研究与发展具有重要意义。

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来源期刊

Separation and Purification Technology 工程技术-工程：化工

CiteScore

14.00

自引率

12.80%

发文量

2347

审稿时长

43 days

期刊介绍： Separation and Purification Technology is a premier journal committed to sharing innovative methods for separation and purification in chemical and environmental engineering, encompassing both homogeneous solutions and heterogeneous mixtures. Our scope includes the separation and/or purification of liquids, vapors, and gases, as well as carbon capture and separation techniques. However, it's important to note that methods solely intended for analytical purposes are not within the scope of the journal. Additionally, disciplines such as soil science, polymer science, and metallurgy fall outside the purview of Separation and Purification Technology. Join us in advancing the field of separation and purification methods for sustainable solutions in chemical and environmental engineering.