配体工程铜基三唑酯 MOFs：增强甲基蓝去除的吸附性能

IF 4.8 3区材料科学 Q1 CHEMISTRY, APPLIED

Microporous and Mesoporous Materials Pub Date : 2025-04-02 DOI:10.1016/j.micromeso.2025.113623

Yujie Zhang , Wenmei Zhang , Guang Yang , Zhihao Chen , Wenhua Zhang

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引用次数: 0

摘要

通过在母体cuz -1 ([Cu8(3,5- ph2 -tz)6](BF4)2(CH3OH) （3,5- ph2 -tz = 3,5-二苯基-1,2,4-三氮化盐）的反应物中掺杂功能化三氮化唑配体（3,5- ph2 -tz = 3,5-二苯基-1,2,4-三氮化盐），合成了一系列cuz - 1_x （X = CH2OH， Py和FPh）金属有机骨架（mof）。通过PXRD、1H NMR、SEM-EDS、EA、TG等手段对所合成的MOFs进行了表征。在母体MOF cuz -1中掺入与3,5-二苯基-1,2,4-三唑具有相似大小和结构的配体，掺入量更高。此外，将功能配体引入改性MOF CuTz-1_X中，与母体MOF相比，其对甲基蓝（MeB）的吸附性能有所提高。其中，3,5-二（4-吡啶基）-1,2,4-三唑掺杂的CuTz-1_Py在293 K下对MeB的吸附量最高，为352.3 mg·g−1。此外，即使在模拟的真实水系中，cuz - 1_x mof材料对MeB的吸附能力也保持稳定。更重要的是，经过4次循环的吸附实验，CuTz-1_X对MeB的吸附效率仍为87%，同时保持了吸附剂的结晶度和形貌，这表明改性mof材料（即CuTz-1_X）可能是废水处理的有希望的候选材料。

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Ligand-engineered copper-based triazolate MOFs: enhanced adsorption performance for methyl blue removal

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Ligand-engineered copper-based triazolate MOFs: enhanced adsorption performance for methyl blue removal

A series of copper triazolate metal-organic frameworks (MOFs), denoted as CuTz-1_X (X = CH₂OH, Py, and FPh), were synthesized via doping functionalized triazole ligands (3,5-R₂-tzH where R = CH₂OH, Py, or FPh) into the reactant of parent CuTz-1 ([Cu₈(3,5-Ph₂-tz)₆](BF₄)₂(CH₃OH), where 3,5-Ph₂-tz = 3,5-diphenyl-1,2,4-trizolate). The synthesized MOFs were thoroughly characterized via PXRD, ¹H NMR, SEM-EDS, EA, TG, etc. It was observed that doping ligands featuring similar size and structure with 3,5-diphenyl-1,2,4-triazole in the parent MOF CuTz-1 resulted in a higher incorporation quantity. Furthermore, the introduction of functional ligands into the modified MOFs, CuTz-1_X, led to enhanced adsorption performance for the removal of methyl blue (MeB) in comparison with that observed over the parent MOF. Especially, CuTz-1_Py, in which 3,5-bis(4-pyridinyl)-1,2,4-triazole was doped, exhibited the highest MeB adsorption capacity of 352.3 mg·g⁻¹ at 293 K. Besides, the adsorption capacity of MeB over CuTz-1_X MOFs materials maintained stable even in the simulated real water systems. More importantly, the adsorption efficiency of MeB over CuTz-1_Py was still 87 % after four cycles of adsorption experiments while preserving the crystallinity and morphology of the adsorbent, indicating that the modified MOFs materials (i.e. CuTz-1_X) could be promising candidates for wastewater treatment.

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来源期刊

Microporous and Mesoporous Materials 化学-材料科学：综合

CiteScore

10.70

自引率

5.80%

发文量

649

审稿时长

26 days

期刊介绍： Microporous and Mesoporous Materials covers novel and significant aspects of porous solids classified as either microporous (pore size up to 2 nm) or mesoporous (pore size 2 to 50 nm). The porosity should have a specific impact on the material properties or application. Typical examples are zeolites and zeolite-like materials, pillared materials, clathrasils and clathrates, carbon molecular sieves, ordered mesoporous materials, organic/inorganic porous hybrid materials, or porous metal oxides. Both natural and synthetic porous materials are within the scope of the journal. Topics which are particularly of interest include: All aspects of natural microporous and mesoporous solids The synthesis of crystalline or amorphous porous materials The physico-chemical characterization of microporous and mesoporous solids, especially spectroscopic and microscopic The modification of microporous and mesoporous solids, for example by ion exchange or solid-state reactions All topics related to diffusion of mobile species in the pores of microporous and mesoporous materials Adsorption (and other separation techniques) using microporous or mesoporous adsorbents Catalysis by microporous and mesoporous materials Host/guest interactions Theoretical chemistry and modelling of host/guest interactions All topics related to the application of microporous and mesoporous materials in industrial catalysis, separation technology, environmental protection, electrochemistry, membranes, sensors, optical devices, etc.