Impact of imine-linked covalent organic framework structures on their adsorption performance

IF 9 1区工程技术 Q1 ENGINEERING, CHEMICAL

Separation and Purification Technology Pub Date : 2025-02-27 DOI:10.1016/j.seppur.2025.132305

Ghizelane Lebar , Amir Khojastehnezhad , Zhiyuan Peng , Farid Moeinpour , Mohamed Siaj

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引用次数: 0

Abstract

One of the critical challenges in purification, storage and separation technologies lies in the design and development of porous materials with ordered structures. In this study, we designed three distinct triazine and imine-linked covalent organic frameworks (COFs) with varying degrees of crystallinity and porosity to assess their performance in dye adsorption. The investigation aims to elucidate the influence of structural variations, particularly in crystallinity and porosity, on their adsorption capabilities and removal efficiency. The results demonstrated a direct correlation between the COFs’ surface area, crystalline and porous structure, and their efficacy in adsorbing dye from water. Notably, the COF with the highest surface area and superior crystallinity, exhibited the most substantial adsorption capacity, reaching 1665 mg/g. This underscores the critical influence of structural characteristics on regulating adsorption capabilities. The findings of this study on how structural variations in COFs directly influence material performance in water purification can be extended to broader applications in storage and separation. This research provides a valuable roadmap for researchers to select and design materials optimized for specific requirements across these domains.

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亚胺连接共价有机骨架结构对其吸附性能的影响

具有有序结构的多孔材料的设计和开发是净化、储存和分离技术面临的关键挑战之一。在这项研究中，我们设计了三个不同的三嗪和亚胺连接的共价有机框架（COFs），它们具有不同的结晶度和孔隙度，以评估它们在染料吸附中的性能。该研究旨在阐明结构变化，特别是结晶度和孔隙度对其吸附能力和去除效率的影响。结果表明，COFs的表面积、晶体结构和多孔结构与其吸附水中染料的效果直接相关。值得注意的是，COF具有最大的表面积和优异的结晶度，表现出最显著的吸附能力，达到1665 mg/g。这强调了结构特性对调节吸附能力的重要影响。这项关于COFs结构变化如何直接影响水净化材料性能的研究结果可以扩展到更广泛的存储和分离应用中。这项研究为研究人员选择和设计针对这些领域的特定要求进行优化的材料提供了有价值的路线图。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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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.