MWCNT/MIL-160(Al)/LiCl composites for improving open water adsorption performance

IF 3.2 3区化学 Q2 CHEMISTRY, INORGANIC & NUCLEAR

Journal of Solid State Chemistry Pub Date : 2025-05-12 DOI:10.1016/j.jssc.2025.125419

Huizhong Zhao , Shuqi Liu , Swellam W. Sharshir , Chengfeng Liu , Chunbo Miao , Zhengyun Kuang

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引用次数: 0

Abstract

To enhance the atmospheric water harvesting (AWH) performance of MIL-160(Al), a series of composite adsorbents were synthesized by incorporating multi-walled carbon nanotubes (MWCNTs) via a hydrothermal method and subsequently loading lithium chloride (LiCl) through an impregnation process. The materials were evaluated in terms of adsorption capacity, desorption efficiency, and cyclic stability. MWCNTs improved structural stability, reducing the adsorption loss to 5.26 % after 30 cycles, while LiCl enhanced water adsorption performance, with equilibrium capacity increased by up to 40.12 % at 80 % RH. The dual-composite system achieved a balance between capacity and durability, showing up to 32.54 % at 80 % RH higher water uptake than pristine MIL-160(Al) and maintained structural integrity and stable performance across 30 cycles. These findings offer support into the rational design of MOF-based sorbents for efficient and long-term AWH applications.

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MWCNT/MIL-160(Al)/LiCl复合材料改善开放水吸附性能

为了提高MIL-160（Al）的大气集水性能，采用水热法制备多壁碳纳米管（MWCNTs），并通过浸渍工艺加载氯化锂（LiCl），制备了一系列复合吸附剂。对材料的吸附能力、解吸效率和循环稳定性进行了评价。MWCNTs提高了结构稳定性，在30次循环后将吸附损失降低到5.26%，而LiCl提高了水吸附性能，在80% RH下平衡容量提高了40.12%。双复合材料系统实现了容量和耐久性之间的平衡，在80%相对湿度下，吸水率比原始MIL-160（Al）高出32.54%，并且在30次循环中保持结构完整性和稳定性能。这些发现为合理设计基于mof的吸附剂以实现高效和长期的AWH应用提供了支持。

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

Journal of Solid State Chemistry 化学-无机化学与核化学

CiteScore

6.00

自引率

9.10%

发文量

848

审稿时长

25 days

期刊介绍： Covering major developments in the field of solid state chemistry and related areas such as ceramics and amorphous materials, the Journal of Solid State Chemistry features studies of chemical, structural, thermodynamic, electronic, magnetic, and optical properties and processes in solids.