Microporous and Mesoporous Materials最新文献

Urea-assisted vs. conventional precipitation for the synthesis of sepiolite-zirconium oxide/hydroxide composites: Influence on the physicochemical properties and phosphate adsorption 尿素辅助沉淀法与常规沉淀法合成海泡石-氧化锆/氢氧化物复合材料：对物理化学性质和磷酸盐吸附的影响

IF 4.7 3区材料科学 Q1 CHEMISTRY, APPLIED

Microporous and Mesoporous Materials

Pub Date : 2026-01-27 DOI: 10.1016/j.micromeso.2026.114054

Željka Milovanović , Slavica Lazarević , Ivona Janković-Častvan , Dejan Pjević , Slobodan Cvetković , Đorđe Janaćković , Rada Petrović

Urea-assisted precipitation could be a promising alternative to usual ammonia precipitation for preparing sepiolite–zirconium oxide/hydroxide composites with improved properties for removing phosphate from water. This study investigates the effects of synthesis temperature and duration on the properties of composites obtained by urea-assisted precipitation and their phosphate adsorption performance at pH 4 and 8. Urea-assisted precipitation was carried out at 95, 120, and 180 °C for 3 and 18 h, while ammonia precipitation was performed at room temperature. The results showed that the highest temperature and longest synthesis time (180 °C, 18 h) led to the most homogeneous distribution of ZrO₂ particles; however, the increase in solution pH (∼8.5) and the formation of crystalline particles negatively affected the adsorption capacity. Lowering the synthesis temperature and duration slowed down urea hydrolysis, reduced both the solution pH and the point of zero charge of the composites, and decreased the tendency towards ZrO₂ crystallization, which was favorable for phosphate adsorption. Nevertheless, urea-assisted syntheses did not significantly enhance the adsorption capacity compared to conventional precipitation at pH ∼12, most likely due to the stronger condensation of Zr–OH groups at elevated temperatures.

XPS analysis confirmed the involvement of both inner- and outer-sphere complexes in the adsorption mechanism at pH 4. The ATR-FTIR analysis supported the formation of inner-sphere complexes during phosphate adsorption at both pH 4 and pH 8. Desorption experiments indicated slow phosphate release, supporting the presence of strong interactions between phosphate ions and surface functional groups. These findings provide valuable insights into the control of structure and adsorption performance of sepiolite–ZrO₂ composites through optimization of the urea-assisted precipitation process.

尿素辅助沉淀法是制备海泡石-氧化锆/氢氧化物复合材料的一种很有前途的替代方法，该复合材料具有更好的去除水中磷酸盐的性能。研究了合成温度和时间对尿素辅助沉淀法制备的复合材料性能的影响，以及pH值为4和8时复合材料对磷酸盐的吸附性能。尿素辅助沉淀在95、120和180°C下分别进行3和18 h，而氨沉淀在室温下进行。结果表明：在最高温度和最长合成时间（180℃，18 h）下，ZrO2颗粒分布最均匀；然而，溶液pH的增加（~ 8.5）和结晶颗粒的形成对吸附能力产生了负面影响。降低合成温度和持续时间减缓了尿素水解，降低了溶液pH和复合材料的零电荷点，降低了ZrO2的结晶倾向，有利于磷酸盐的吸附。然而，与pH ~ 12的常规沉淀相比，尿素辅助合成并没有显著提高吸附能力，这很可能是由于高温下Zr-OH基团的冷凝更强。XPS分析证实了内外球配合物均参与了pH值为4的吸附机制。ATR-FTIR分析支持在pH 4和pH 8下磷酸盐吸附过程中形成球内配合物。解吸实验表明磷酸盐释放缓慢，支持磷酸盐离子与表面官能团之间存在强相互作用。这些发现为通过优化尿素辅助沉淀工艺来控制海泡石- zro2复合材料的结构和吸附性能提供了有价值的见解。

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引用次数: 0

Defect location dictates water adsorption enthalpy in CAU-10-H MOFs: A first-principles perspective 缺陷位置决定了cu -10- h mof的水吸附焓：第一线原理的观点

IF 4.7 3区材料科学 Q1 CHEMISTRY, APPLIED

Microporous and Mesoporous Materials

Pub Date : 2026-01-25 DOI: 10.1016/j.micromeso.2026.114053

Diego García-López , Giulia van Rossem , Norbert Stock , Alexandre F.P. Ferreira , Sofía Calero

Water scarcity is one of the most pressing global risks. The situation is becoming increasingly precarious in underdeveloped regions, driving the search for materials that can efficiently harvest atmospheric moisture under arid conditions. Metal-organic frameworks (MOFs), with their tunable porosity and surface chemistry, have emerged as promising sorbents for sorption-based atmospheric water harvesting (SAWH). Among these, CAU-10-H stands out for its exceptional cyclic stability. By employing first-principles calculations and Grand Canonical Monte Carlo simulations, we elucidate how the position and spatial arrangement of missing-linker defects modulate water adsorption enthalpy in CAU-10-H. Defect location dictates the strength and topology of water-framework interactions, with adsorption enthalpies varying roughly from −25 to −40 kJ mol⁻¹ depending on defect geometry. Density-profile analyses reveal that missing linkers create localized, high-affinity binding pockets within the framework, whose accessibility and multiplicity increase with the separation of defects. Conversely, adjacent defects partially screen open metal sites, reducing adsorption strength. These results demonstrate that water uptake thermodynamics in CAU-10-H is governed not only by defect concentration but also by the spatial correlation of defects. The findings establish a structure-enthalpy relationship that provides a quantitative basis for defect engineering in MOFs, paving the way for next-generation water-harvesting technologies.

水资源短缺是最紧迫的全球风险之一。在欠发达地区，这种情况正变得越来越不稳定，这促使人们寻找能够在干旱条件下有效收集大气水分的材料。金属有机骨架（mof）具有可调节的孔隙率和表面化学性质，已成为基于吸附的大气集水（SAWH）的有前途的吸附剂。其中，cac -10- h因其特殊的循环稳定性而引人注目。通过第一性原理计算和大规范蒙特卡罗模拟，我们阐明了缺失连接缺陷的位置和空间排列如何调节cu -10- h中的水吸附焓。缺陷的位置决定了水-骨架相互作用的强度和拓扑结构，吸附焓根据缺陷的几何形状大致在- 25到- 40 kJ mol - 1之间变化。密度剖面分析表明，缺失的连接子在框架内产生了局部的、高亲和力的结合口袋，其可及性和多样性随着缺陷的分离而增加。相反，相邻的缺陷部分屏蔽了开放的金属位点，降低了吸附强度。这些结果表明，cu -10- h的吸水热力学不仅受缺陷浓度的影响，而且受缺陷的空间相关性的影响。研究结果建立了结构-焓关系，为mof缺陷工程提供了定量基础，为下一代集水技术铺平了道路。

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引用次数: 0

Efficient separation of C2H2/CH4 and CO2/CH4 with a microporous MOF prepared by scalable synthesis under room temperature 室温下可扩展合成的微孔MOF高效分离C2H2/CH4和CO2/CH4

IF 4.7 3区材料科学 Q1 CHEMISTRY, APPLIED

Microporous and Mesoporous Materials

Pub Date : 2026-01-20 DOI: 10.1016/j.micromeso.2026.114051

Qiang Gao , Fang Han , Yaru Dang , Tian-tian Wei , Cheng-Qian Fan , Xin Gao , Ya-Nan Li , Ruihan Wang , Sihui Wang , Li-Zhuang Chen

Adsorption technology based on porous solids is considered as a promising alternative approach for the traditional thermal-driven industrial separation processes to alleviate the high energy consumption. Herein, we report a scalable synthesized stable microporous MOF (Cu-BPZ-CH₃CN) featuring positively charged local environment, which is capable of efficiently separating of CO₂ and C₂H₂ from CH₄. Notably, the C₂H₂/CH₄ and CO₂/CH₄ IAST selectivities of Cu-BPZ-CH₃CN can reach up to 302 and 108 under ambient conditions, respectively, which exceed those of most reported top-performing MOFs. And, the productivity of recovered high pure CH₄ in breakthrough experiments also demonstrated a definite advantage. Regarding the separation performance of Cu-BPZ-CH₃CN, the pivotal role of appropriate positively charged local surface chemical micro-environment and pore size was confirmed by theoretical calculations.

基于多孔固体的吸附技术被认为是一种有前途的替代方法，可以缓解传统的热驱动工业分离工艺的高能耗。本文报道了一种可扩展合成的稳定微孔MOF (Cu-BPZ-CH3CN)，该MOF具有带正电的局部环境，能够有效地从CH4中分离CO2和C2H2。值得注意的是，Cu-BPZ-CH3CN的C2H2/CH4选择性和CO2/CH4 IAST选择性在环境条件下分别达到302和108，超过了目前报道的性能最好的mof。在突破性实验中，回收的高纯CH4的产率也显示出一定的优势。对于Cu-BPZ-CH3CN的分离性能，理论计算证实了适当的带正电的局部表面化学微环境和孔径对Cu-BPZ-CH3CN的分离性能起着关键作用。

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引用次数: 0

Rational functionalization of mesoporous silica with ionic liquid and Co(II) for robust single-component CO2 conversion 离子液体和Co（II）合理功能化介孔二氧化硅实现稳健的单组分CO2转化

IF 4.7 3区材料科学 Q1 CHEMISTRY, APPLIED

Microporous and Mesoporous Materials

Pub Date : 2026-01-20 DOI: 10.1016/j.micromeso.2026.114049

Chutima Tangku , Kyriakos C. Stylianou , Wipark Anutrasakda

The development of efficient and recyclable catalysts for the direct conversion of alkenes and CO₂ into cyclic carbonates remains a pressing challenge in green chemistry. Herein, we report the synthesis and catalytic performance of a series of cobalt-modified mesoporous silica-supported pyridinium-based ionic liquids (Co-mSiO₂@[Py-R][X]) designed for the one-pot oxidative carboxylation of alkenes with CO₂. Among the series, Co-mSiO₂@[Py-N(CH₃)₂][Br] exhibited superior activity, achieving 94 % styrene conversion and 74 % selectivity toward styrene carbonate under mild conditions without the need for additional co-catalysts. The catalyst combines redox-active Co(II/III) centers, Lewis acid sites, and nucleophilic bromide ions in a single heterogeneous framework, enabling efficient epoxidation and subsequent CO₂ cycloaddition. Mechanistic investigations supported a dual-pathway epoxidation involving both radical and halohydrin intermediates. The catalyst demonstrated broad substrate scope and retained high activity and selectivity over five consecutive cycles, with no significant structural degradation. Compared to conventional homogeneous or multi-component systems, this single-component, recyclable heterogeneous catalyst offers distinct advantages in terms of efficiency, stability, and ease of recovery. This work highlights a promising strategy for sustainable CO₂ valorization using multifunctional mesoporous catalytic materials.

开发高效、可回收的烯烃和二氧化碳直接转化为环状碳酸盐的催化剂仍然是绿色化学领域的一个紧迫挑战。本文报道了一系列钴修饰的介孔硅负载吡啶基离子液体（Co-mSiO2@[Py-R][X]）的合成及其催化性能，该离子液体用于烯烃与CO2的一锅氧化羧化反应。其中Co-mSiO2@[Py-N(CH3)2][Br]表现出优异的活性，在温和的条件下，无需额外的助催化剂，对苯乙烯的转化率达到94%，对苯乙烯的选择性达到74%。该催化剂将氧化活性Co（II/III）中心、Lewis酸位点和亲核溴离子结合在一个单一的非均相框架中，实现了高效的环氧化和随后的CO2环加成。机制研究支持双途径环氧化涉及自由基和卤代醇中间体。该催化剂显示出广泛的底物范围，并在连续五个循环中保持高活性和选择性，没有明显的结构降解。与传统的均相或多组分系统相比，这种单组分、可回收的多相催化剂在效率、稳定性和易于回收方面具有明显的优势。这项工作强调了使用多功能介孔催化材料实现可持续二氧化碳增值的有希望的策略。

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引用次数: 0

Immobilization of lipase in pore-expanded SBA-15 heterofunctionalized with methyl (CH3) and tin (II) chloride (SnCl2) groups for ethyl ester production 脂肪酶在甲基（CH3）和氯化锡（SnCl2）异官能团的SBA-15扩孔中固定化以生产乙酯

IF 4.7 3区材料科学 Q1 CHEMISTRY, APPLIED

Microporous and Mesoporous Materials

Pub Date : 2026-01-20 DOI: 10.1016/j.micromeso.2026.114050

C.A. Araki , S.M.P. Marcucci , P.A. Arroyo , G.M. Zanin

A series of ordered SBA-15 mesoporous support with expanded pores (approximately 20 nm) were developed for the immobilization of Burkholderia cepacia lipase (BCL), The carriers were heterofunctionalized with CH₃ (SS20) and SnCl groups (SnS20), and sequentially with both groups (CH₃ followed by SnCl, denoted SnSS20). The corresponding biocatalysts were named BSS20, BSnS20 and BSnSS20. The novelty of this study lies in the sequential heterofunctionalization of SBA-15 pores, aiming to combine the benefits of hydrophobic adsorption and covalent immobilization. Hydrolysis assays suggested that the hydrophobic nature of CH₃ groups maintained its positive effect on catalytic performance even after tin insertion. In the synthesis of ethyl esters, all biocatalysts achieved approximately 90 % ester yield after 72 h. However, BSS20 and BSnSS20 reached reaction equilibrium in a shorter time (48 h) than BSnS20, suggesting that the CH₃ groups facilitated faster reaction kinetics. Adding glycerol to the reaction medium resulted in lower performance of BSS20 and BSnSS20 compared to the BSnS20 biocatalyst. Heterogeneity tests indicated that incorporation of CH₃ groups was sufficient to prevent protein leaching. Activation with SnCl proved highly relevant for biocatalyst reuse. In the 6th test, BSnS20 and BSnSS20 retained 81 ± 1.0 and 75 ± 1.2 relative yields, respectively, significantly outperforming BSS20 (64 ± 0.4 %). These results suggest that the synthesized carrier properties successfully accommodate the BCL biomolecules within the channels while combining the advantages of adsorption and covalent binding for high activity and enhanced operational stability.

为了固定化洋葱伯克霍尔德氏菌脂肪酶（BCL），制备了一系列具有扩展孔（约20 nm）的有序SBA-15介孔载体，载体分别与CH3 （SS20）和SnCl基团（SnS20）异功能化，并依次与两组异功能化（CH3和SnCl，简称SnSS20）。相应的生物催化剂分别命名为BSS20、BSnS20和BSnSS20。本研究的新颖之处在于SBA-15孔隙的顺序异功能化，旨在结合疏水吸附和共价固定的优点。水解实验表明，即使在插入锡后，CH3基团的疏水性仍对催化性能有积极影响。在乙基酯的合成过程中，所有的生物催化剂在72 h后都能达到90%左右的酯收率，而BSS20和BSnSS20比BSnS20在更短的时间（48 h）内达到反应平衡，这表明CH3基团促进了更快的反应动力学。与BSnS20生物催化剂相比，在反应介质中加入甘油导致BSS20和BSnSS20的性能降低。异质性试验表明，CH3基团的掺入足以防止蛋白质浸出。SnCl活化与生物催化剂的重复使用高度相关。在第6次试验中，BSnS20和BSnSS20的相对产量分别为81±1.0和75±1.2，显著优于BSS20（64±0.4%）。这些结果表明，合成的载体性质成功地将BCL生物分子容纳在通道内，同时结合了吸附和共价结合的优点，具有高活性和增强的操作稳定性。

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引用次数: 0

Synthesis of pure silica large-pore MTW and ∗STO zeolites using phenyl-containing dicationic OSDAs 用含苯基的定向osda合成纯二氧化硅大孔MTW和* STO沸石

IF 4.7 3区材料科学 Q1 CHEMISTRY, APPLIED

Microporous and Mesoporous Materials

Pub Date : 2026-01-17 DOI: 10.1016/j.micromeso.2026.114047

Andressa Vieira Hilário , Katia Bernardo-Gusmão , Christian Wittee Lopes

The synthesis of zeolites with tailored structures and properties is of paramount importance for their application in catalysis, adsorption, and separation processes. In this work, we explore the use of four novel organic structure-directing agents (OSDAs) containing phenyl or biphenyl spacers between two cationic sites for the fluoride-mediated synthesis of purely siliceous zeolites. The OSDAs were systematically synthesized and characterized before being employed in hydrothermal syntheses at 150 °C under varying conditions of water-to-silica ratio and crystallization time. X-ray diffraction (XRD) and scanning electron microscopy (SEM) confirmed the successful formation of crystalline zeolites for specific OSDA compositions. The OSDA-I1 and OSDA-A1 species, containing single phenyl spacers and differing in cationic nature (imidazolium vs. ammonium), led to the formation of the MTW and ∗STO zeolite phases, respectively. Thermogravimetric analysis (TGA) and solid-state nuclear magnetic resonance (NMR) provided further insights into the structural properties of the synthesized materials. These findings contribute to the ongoing efforts to design novel OSDAs for targeted zeolite synthesis and highlight the role of phenyl-based spacers in directing framework topology.

合成具有特定结构和性质的沸石对其在催化、吸附和分离过程中的应用至关重要。在这项工作中，我们探索了使用四种新型有机结构导向剂（OSDAs）在两个阳离子位点之间含有苯基或联苯间隔剂，用于氟化物介导的纯硅质沸石合成。系统地合成了OSDAs，并对其进行了表征，然后在150℃下，在不同的水硅比和结晶时间条件下进行了水热合成。x射线衍射（XRD）和扫描电镜（SEM）证实了特定OSDA成分的结晶沸石的成功形成。OSDA-I1和OSDA-A1含有单苯基间隔剂，阳离子性质不同（咪唑与铵），分别形成MTW和∗STO沸石相。热重分析（TGA）和固态核磁共振（NMR）为合成材料的结构特性提供了进一步的见解。这些发现有助于设计用于靶向沸石合成的新型osda，并突出了苯基间隔剂在指导框架拓扑结构中的作用。

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引用次数: 0

Recent advances in the application of mesoporous silica nanoparticles in nano-pesticides: A review 介孔二氧化硅纳米颗粒在纳米农药中的应用研究进展

IF 4.7 3区材料科学 Q1 CHEMISTRY, APPLIED

Microporous and Mesoporous Materials

Pub Date : 2026-01-17 DOI: 10.1016/j.micromeso.2026.114044

Yujiao Wang, Zhiwei Tang, Chuhela Tabusibieke, Jianhao Dong, Qiuxiang Tang, Wei Lu

To date, significant progress has been made in the research field of nano-pesticides. Mesoporous silica nanoparticles (MSNs) are among the most widely used carrier materials in the formulation of nano-pesticides, owing to their abundant pore structure and favorable biocompatibility. This review extends beyond a conventional summary of preparation methods and innovatively elucidates the intrinsic relationships between reagent selection and pesticide loading performance, offering a novel paradigm for the rational design of efficient drug delivery systems. Meanwhile, this article focuses on two major cutting-edge research directions over the past five years: one involves stimuli-responsive nano-pesticides based on MSNs, such as those triggered by pH, enzymes, or light, which enable on-demand and precise delivery of pesticides; the other encompasses function-enhanced nano-pesticides that significantly improve pesticide targeting and utilization efficiency through the co-loading of adjuvants or the construction of multi-component composite materials. This article provides a forward-looking discussion on the environmental behavior and potential risks associated with these novel nano-pesticides and concludes with an outlook on the challenges and future innovation pathways for their practical application, aiming to contribute new momentum to the development of smarter, safer, and multifunctional agricultural nanotechnology products.

迄今为止，纳米农药的研究取得了重大进展。介孔二氧化硅纳米颗粒（MSNs）因其丰富的孔隙结构和良好的生物相容性而成为纳米农药制备中应用最广泛的载体材料之一。这篇综述超越了对制备方法的传统总结，创新性地阐明了试剂选择与农药负载性能之间的内在关系，为合理设计高效的给药系统提供了新的范例。同时，本文重点介绍了近五年来的两大前沿研究方向：一是基于微微粒子的刺激响应型纳米农药，如pH值、酶或光触发的微微粒子，可实现农药的按需精准输送；另一个包括功能增强的纳米农药，通过佐剂的共载或多组分复合材料的构建显着提高农药的靶向和利用效率。本文对这些新型纳米农药的环境行为和潜在风险进行了前瞻性的讨论，并对其实际应用面临的挑战和未来的创新途径进行了展望，旨在为开发更智能、更安全、多功能的纳米农业产品提供新的动力。

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引用次数: 0

Organic-directed crystallization of Na-free Y zeolite with controlled framework composition 控制骨架组成的无钠Y型沸石有机定向结晶

IF 4.7 3区材料科学 Q1 CHEMISTRY, APPLIED

Microporous and Mesoporous Materials

Pub Date : 2026-01-14 DOI: 10.1016/j.micromeso.2026.114045

Thibaud Aumond , Corentin Chatelard , Mathias Dodin , Raquel Martinez-Franco , Alain Tuel

Commercial HY zeolites have been recrystallized in the presence of 15-crown-5 molecules, using mixtures of NaOH and tetraalkylammonium hydroxides (TAAOH) with alkyl chains from C₂ to C₄ as alkaline reagents. At constant pH value, the gradual replacement of NaOH by TAAOH in the gel did not modify the composition of the framework but led to a progressive decrease of the crown ether content in the zeolite in favor of ammonium cations. In the particular case of propyl chains, the zeolite could completely recrystallize in the absence of Na⁺ cations, giving a [TPA⁺]-Y zeolite with SiO₂/Al₂O₃ = 19.5, in which all negative charges of Al tetrahedra are compensated by TPA⁺ cations. It constitutes the first example of Y zeolite crystallized in the presence of organic molecules and in the absence of Na⁺ cations. Attempts to obtain similar materials with tetraethylammonium or tetrabutylammonium cations were unsuccessful, likely due to a mismatch between framework and organic charges. The [TPA⁺]-Y zeolite features octahedral crystals similar in size and shape to those of the initial HY with a slight increase of the mesoporous volume. Recrystallization was limited to HY zeolites with SiO₂/Al₂O₃ ratios between ca. 30 and 60, solids obtained from precursors with SiO₂/Al₂O₃ > 60 being systematically contaminated by MFI phase.

用NaOH和烷基链从C2到C4的四烷基铵氢氧化物（TAAOH）的混合物作为碱性试剂，在15冠5分子存在下对HY分子筛进行了再结晶。在一定pH值下，凝胶中NaOH逐渐被TAAOH取代，并没有改变骨架的组成，而是导致沸石中冠醚含量逐渐减少，有利于铵离子的生成。在丙基链的特殊情况下，沸石在没有Na+阳离子的情况下可以完全重结晶，得到SiO2/Al2O3 = 19.5的[TPA+]-Y沸石，其中Al四面体的所有负电荷都被TPA+阳离子补偿。它构成了Y型沸石在有机分子存在和没有Na+阳离子的情况下结晶的第一个例子。试图获得具有四乙基铵或四丁基铵阳离子的类似材料是不成功的，可能是由于框架和有机电荷之间的不匹配。[TPA+]-Y沸石具有与初始HY相似的八面体晶体大小和形状，介孔体积略有增加。重结晶仅限于SiO2/Al2O3比在30 ~ 60之间的HY沸石，由SiO2/Al2O3 = 60的前驱体得到的固体被MFI相系统地污染。

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引用次数: 0

Metal-organic frameworks as promising materials for per- and polyfluoroalkyl substances (PFAS) elimination: Insights from fabrication to performance optimization 金属有机框架作为消除全氟和多氟烷基物质（PFAS）的有前途的材料：从制造到性能优化的见解

IF 4.7 3区材料科学 Q1 CHEMISTRY, APPLIED

Microporous and Mesoporous Materials

Pub Date : 2026-01-14 DOI: 10.1016/j.micromeso.2026.114046

Mehdi Al Kausor , Nazima Sultana , Sharmistha Chakraborty , Rifah Arsha , Ahnaf Jihan , Dipa Tasnim , Susmita Sen Gupta , Dhruba Chakrabortty

Per- and polyfluoroalkyl substances (PFAS) are a broad class of synthetic organo-fluorine compounds defined by strong carbon–fluorine bonds, exceptional chemical stability, and amphiphilic character, resulting in their persistence and widespread distribution in the environment. Their extensive use in industrial and consumer applications such as firefighting foams, textiles, cookware, packaging, and surfactants has led to global contamination of surface water, groundwater, and food chains. Conventional treatment technologies such as adsorption by activated carbon, ion-exchange resins, zeolites, and membrane filtration show varying limitations, particularly in removing short-chain PFAS and managing secondary waste streams, underscoring the urgent need for next-generation adsorbents. Metal-Organic Frameworks (MOFs), with their high surface-area, structural tunability, and customizable surface chemistry, have emerged as promising candidates for efficient PFAS capture. Recent advances in MOF design spanning MIL, UiO, ZIF-series and various other modified frameworks demonstrate improved uptake capacities, rapid adsorption kinetics, and enhanced stability under realistic water matrices. This progress in MOF-based adsorbents represents a significant advancement in environmental chemistry, showcasing key developments in reticular and coordination chemistry. This review focuses on current progress of MOF and MOF-based for PFAS remediation, highlighting key synthesis strategies, adsorption mechanisms, and performance trends. It also identifies knowledge gaps and future research directions critical for translating MOF materials into scalable, practical technologies for PFAS-contaminated water treatment.

全氟和多氟烷基物质（PFAS）是一类广泛的合成有机氟化合物，具有强碳氟键、优异的化学稳定性和两亲性，因此在环境中具有持久性和广泛分布。它们在工业和消费领域的广泛应用，如消防泡沫、纺织品、炊具、包装和表面活性剂，导致了全球地表水、地下水和食物链的污染。传统的处理技术，如活性炭、离子交换树脂、沸石和膜过滤等，都显示出不同的局限性，特别是在去除短链PFAS和管理二次废物流方面，这凸显了对下一代吸附剂的迫切需求。金属有机框架（mof）具有高表面积，结构可调节性和可定制的表面化学性质，已成为有效捕获PFAS的有希望的候选者。MOF设计的最新进展包括MIL、UiO、zif系列和各种其他改性框架，表明MOF的吸收能力、快速吸附动力学和在现实水基质下的稳定性得到了提高。mof基吸附剂的这一进展代表了环境化学的重大进步，展示了网状化学和配位化学的关键发展。本文综述了MOF和基于MOF的PFAS修复技术的研究进展，重点介绍了主要的合成策略、吸附机理和性能趋势。它还确定了知识缺口和未来的研究方向，这些方向对于将MOF材料转化为可扩展的、实用的技术来处理pfas污染的水至关重要。

{"title":"Metal-organic frameworks as promising materials for per- and polyfluoroalkyl substances (PFAS) elimination: Insights from fabrication to performance optimization","authors":"Mehdi Al Kausor , Nazima Sultana , Sharmistha Chakraborty , Rifah Arsha , Ahnaf Jihan , Dipa Tasnim , Susmita Sen Gupta , Dhruba Chakrabortty","doi":"10.1016/j.micromeso.2026.114046","DOIUrl":"10.1016/j.micromeso.2026.114046","url":null,"abstract":"<div><div>Per- and polyfluoroalkyl substances (PFAS) are a broad class of synthetic organo-fluorine compounds defined by strong carbon–fluorine bonds, exceptional chemical stability, and amphiphilic character, resulting in their persistence and widespread distribution in the environment. Their extensive use in industrial and consumer applications such as firefighting foams, textiles, cookware, packaging, and surfactants has led to global contamination of surface water, groundwater, and food chains. Conventional treatment technologies such as adsorption by activated carbon, ion-exchange resins, zeolites, and membrane filtration show varying limitations, particularly in removing short-chain PFAS and managing secondary waste streams, underscoring the urgent need for next-generation adsorbents. Metal-Organic Frameworks (MOFs), with their high surface-area, structural tunability, and customizable surface chemistry, have emerged as promising candidates for efficient PFAS capture. Recent advances in MOF design spanning MIL, UiO, ZIF-series and various other modified frameworks demonstrate improved uptake capacities, rapid adsorption kinetics, and enhanced stability under realistic water matrices. This progress in MOF-based adsorbents represents a significant advancement in environmental chemistry, showcasing key developments in reticular and coordination chemistry. This review focuses on current progress of MOF and MOF-based for PFAS remediation, highlighting key synthesis strategies, adsorption mechanisms, and performance trends. It also identifies knowledge gaps and future research directions critical for translating MOF materials into scalable, practical technologies for PFAS-contaminated water treatment.</div></div>","PeriodicalId":392,"journal":{"name":"Microporous and Mesoporous Materials","volume":"404 ","pages":"Article 114046"},"PeriodicalIF":4.7,"publicationDate":"2026-01-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146035913","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Synergistic dual-site redox catalysis in Cu/V-ZSM-5 enables rapid and selective toluene-to-cresol conversion Cu/V-ZSM-5的协同双位点氧化还原催化实现了快速和选择性的甲苯到甲酚的转化

IF 4.7 3区材料科学 Q1 CHEMISTRY, APPLIED

Microporous and Mesoporous Materials

Pub Date : 2026-01-13 DOI: 10.1016/j.micromeso.2026.114035

Haonan Shi, Luping Mao, He Wang, Yuyan Li, Junduo Sun, Shijian Zhou, Yan Kong

The selective hydroxylation of toluene to cresols remains a major challenge due to slow kinetics and competing over-oxidation pathways. Herein, we report a Cu/V-ZSM-5 catalyst with synergistic dual-site redox catalysis that achieves unprecedented reaction rates alongside high selectivity. Through in situ V incorporation and Cu impregnation, the catalyst features modulated pore structure and well-dispersed Cu⁺/Cu²⁺pecies stabilized by a reversible V⁴⁺/V⁵⁺ redox cycle. Critically, this unique configuration enables rapid H₂O₂ activation into hydroxyl radicals, the Cu⁺ species form Cu-OH new medium-to-strong acid sites, which drive regioselective electrophilic aromatic substitution and reduce the activation energy of the reaction, leading to 73.2 % cresol selectivity and 35.8 % yield within only 20 min—significantly outperforming conventional catalysts in both speed and efficiency. The system also exhibits low activation energy (39.9 kJ mol⁻¹), excellent recyclability, and industrial potential. This work provides a new design principle for constructing high-performance redox catalysts that combine accelerated kinetics with precise selectivity in aromatic C-H functionalization.

甲苯的选择性羟基化到甲酚仍然是一个主要的挑战，由于缓慢的动力学和竞争的过氧化途径。本文中，我们报道了一种Cu/V-ZSM-5催化剂，具有协同双位点氧化还原催化作用，具有前所未有的反应速率和高选择性。通过V的原位掺入和Cu的浸渍，催化剂具有调节的孔隙结构和分散良好的Cu+/Cu2+物质，通过可逆的V4+/V5+氧化还原循环稳定。重要的是，这种独特的结构可以使H2O2快速活化成羟基自由基，Cu+形成Cu- oh新的中强酸位点，从而驱动区域选择性亲电芳取代并降低反应的活化能，从而在20分钟内实现73.2%的甲酚选择性和35.8%的收率-在速度和效率上显著优于传统催化剂。该体系具有较低的活化能（39.9 kJ mol−1）、良好的可回收性和工业潜力。这项工作为构建芳烃C-H功能化的加速动力学与精确选择性相结合的高性能氧化还原催化剂提供了新的设计原则。

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引用次数: 0