金属-有机框架分离纯化5-羟甲基糠醛

IF 9.5 2区材料科学 Q1 CHEMISTRY, PHYSICAL

Journal of Materials Chemistry A Pub Date : 2025-09-23 DOI:10.1039/d5ta05030h

Lei Wang, Hailong He, Lulu Deng, Yuhao Luo, Qiang Liu, Xiaoying Zhu

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引用次数: 0

摘要

5-羟甲基糠醛（HMF）是一种重要的糖基平台化学物质，可以通过酸催化脱水从果糖中生产。然而，如何高效去除副产物甲酸（FA）、乙酰丙酸（LA）和残留果糖以获得高纯度HMF仍然是一个挑战，特别是LA和HMF的分离。本文通过引入配位相互作用，有效地分离了HMF和杂质。MOF-808选择性吸附杂质组分，对Fru （238 mg/gads, 43.8）、FA （174 mg/gads, 53.5）和LA （325 mg/gads, 43.8）具有较高的吸附量和选择性因子。MOF-808在FA和LA上的吸附动力学常数可分别达到58.0 h-1和25.9 h-1。MOF-808的高效吸附分离性能主要归功于其丰富的不饱和配对位点和硬刘易斯酸性。此外，在实际的柱分离中，MOF-808表现出优异的分离性能和循环稳定性。研究表明配位相互作用对HMF的分离纯化是有效的。

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Separation and purification of 5-hydroxymethylfurfural by metal‒organic frameworks

5-Hydroxymethylfurfural (HMF) is an important sugar-based platform chemical that can be produced from fructose by acid-catalyzed dehydration. However, the efficient removal of by-products formic acid (FA), levulinic acid (LA) and residual fructose to obtain high purity HMF remains a challenge, especially the separation of LA and HMF. Herein, by introducing coordination interaction, we effectively separated HMF from impurities. MOF-808 selectively adsorbed the impurity components with high adsorption capacity and selectivity factor for Fru (238 mg/gads, 43.8), FA (174 mg/gads, 53.5), and LA (325 mg/gads, 43.8). Moreover, the adsorption kinetic constants for MOF-808 on FA and LA could reach remarkably high values of 58.0 h-1 and 25.9 h-1, respectively. The efficient adsorption separation performance of MOF-808 is attributed to its abundant unsaturated paired sites and hard Lewis acidity. Additionally, in practical column separation, MOF-808 showed outstanding separation performance and cycling stability. This study indicates coordination interactions are effective for the separation and purification of HMF.

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来源期刊

Journal of Materials Chemistry A CHEMISTRY, PHYSICAL-ENERGY & FUELS

CiteScore

19.50

自引率

5.00%

发文量

1892

审稿时长

1.5 months

期刊介绍： The Journal of Materials Chemistry A, B & C covers a wide range of high-quality studies in the field of materials chemistry, with each section focusing on specific applications of the materials studied. Journal of Materials Chemistry A emphasizes applications in energy and sustainability, including topics such as artificial photosynthesis, batteries, and fuel cells. Journal of Materials Chemistry B focuses on applications in biology and medicine, while Journal of Materials Chemistry C covers applications in optical, magnetic, and electronic devices. Example topic areas within the scope of Journal of Materials Chemistry A include catalysis, green/sustainable materials, sensors, and water treatment, among others.