One-step preparation of hydrophilic metal-organic framework materials with bimetallic linkers and polycarboxylic acid ligands and their adsorption properties
One-step preparation of hydrophilic metal-organic framework materials with bimetallic linkers and polycarboxylic acid ligands and their adsorption properties
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双金属连接体和多元羧酸配体亲水金属有机骨架材料的一步制备及其吸附性能
DOI：
10.1016/j.colsurfa.2020.125843
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发表时间：
2020-11
期刊：
影响因子：
--
通讯作者：
刘宝乾
中科院分区：
文献类型：
--
作者：
黄冬冬;杨武;邸多隆;刘建飞;魏鉴腾;刘宝乾
用简单的一步法合成了具有游离羧基和双金属中心的双金属有机骨架(MIL-53(Fe，Al)-COOH)。研究了该材料的制备条件和吸附性能。偏苯三酸的引入有效地提高了MOF的亲水性，得到的MIL-53(Fe，Al)-COOH表现出比相应的单配体和单金属中心MOF更好的吸附性能。结果表明，MOF的游离羧基与谷胱甘肽(GSH)的氨基和羧基之间的氢键作用是GSH吸附的主要驱动力。结果表明，所制备的MIL-53(Fe，Al)-COOH对水溶液中谷胱甘肽的富集量可达221.46 mg g−1，表明MIL-53(Fe，Al)-COOH可作为一种潜在的吸附剂从水溶液中富集谷胱甘肽。
The bimetallic metal-organic frameworks (MOFs) with free carboxyl groups and bimetallic centers (expressed as MIL-53(Fe, Al)-COOH) are successfully synthesized by a simple one-step method. The preparation conditions and adsorption properties of the materials are studied. The introduction of trimellitic acid effectively enhances the hydrophilicity of the resultant MOFs and the obtained MIL-53(Fe, Al)-COOH shows better adsorption performance than corresponding monoligand and monometallic center MOFs. The results show hydrogen bond interaction between free carboxyl groups of MOFs and amino and carboxyl groups of glutathione(GSH) is the predominant driving force for GSH adsorption. The enrichment results demonstrate that the prepared MIL-53 (Fe, Al) -COOH has the ability to enrich GSH from aqueous solution up to 221.46 mg g−1, which indicates that MIL-53 (Fe, Al)-COOH could be used as a promising potential adsorbent to enrich GSH from aqueous solution.
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影响因子：
29.4
作者：
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通讯作者：
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DOI：
10.1016/j.msec.2015.11.018
发表时间：
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期刊：
Materials science & engineering. C, Materials for biological applications
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作者：
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