Microporous and Mesoporous Materials最新文献

{"title":"Investigating cooperative interactions for the nitroaldol reaction and condensation: Clarifying the impact of microporosity and pore size on catalytic activity of mesoporous aminosilica materials","authors":"Paul Neff,&nbsp;Jee-Yee Chen,&nbsp;Ryan Burrows,&nbsp;Nicholas A. Brunelli","doi":"10.1016/j.micromeso.2025.113762","DOIUrl":"10.1016/j.micromeso.2025.113762","url":null,"abstract":"<div><div>Mesoporous aminosilica materials are active and selective heterogeneous catalysts for the nitroaldol reaction and have many physical and structural characteristics that can be tuned to desired effects. Previous work investigated the impact of tuning pore diameter on catalytic activity in the nitroaldol reaction and observed the highest activity with an MCM-41 support containing pores with an average diameter of 4.5 nm. Our understanding now suggests that these results may have been influenced by differences in microporosity between materials, undermining a comparison between non-microporous MCM-41 and SBA-15 that is known to have micropores. In this work, we introduce a line of SBA-15 supports with negligible microporosity and varied pore diameter. Compared to typical syntheses of SBA-15, these materials show increased catalytic activity as a result of decreased microporosity. Interestingly, a material with a pore diameter of 7.1 nm yields the highest activity among SBA-15-type materials with reduced micropore volume. This is similar to the catalytic activity recorded with an MCM-41 material, suggesting that perceived effects of pore diameter are less important than effects of microporosity. Since SBA-15 is more hydrothermally stable than MCM-41, the ability to use it as a suitable alternative for the nitroaldol reaction when microporosity is reduced is encouraging for future development.</div></div>","PeriodicalId":392,"journal":{"name":"Microporous and Mesoporous Materials","volume":"397 ","pages":"Article 113762"},"PeriodicalIF":4.8,"publicationDate":"2025-07-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144653991","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}

{"title":"Recent progress in the green synthesis of zeolite membranes","authors":"Liangqing Li ,&nbsp;Jiajia Li ,&nbsp;Liangsong Li","doi":"10.1016/j.micromeso.2025.113761","DOIUrl":"10.1016/j.micromeso.2025.113761","url":null,"abstract":"<div><div>Zeolite membranes have attracted much attention due to their regular and uniform pore structure and good thermal stability, and have attracted much attention in application fields such as gas separation and solvent dehydration. The traditional hydrothermal synthesis of zeolite membranes usually requires a large amount of synthesis solution or gel, relies on expensive and potentially dangerous organic structure directing agents (OSDAs), and involves a long crystallization time and high operating pressure. These factors lead to large resource consumption, significant chemical waste, and pose environmental and safety hazards. In recent years, with the growing interest in developing green and sustainable zeolite membrane synthesis routes to overcome these limitations, it has gradually become a research hotspot in this field. This review summarizes and discusses recent advances in the green synthesis of zeolite membranes from several aspects, including reduced quantity of synthesis solutions or gels, OSDA-free synthesis, low-cost and biodegradable OSDA-assisted synthesis, microwave-assisted synthesis, and ionothermal synthesis and outlines future development prospects in this field.</div></div>","PeriodicalId":392,"journal":{"name":"Microporous and Mesoporous Materials","volume":"397 ","pages":"Article 113761"},"PeriodicalIF":4.8,"publicationDate":"2025-07-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144604984","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}

{"title":"Tetracycline adsorption on carbon-based adsorbents: Insights into dimensional and chemical effects","authors":"Shuhan Song ,&nbsp;Xiaolong Zheng ,&nbsp;Xiaoyu Liu ,&nbsp;Jiyue Ding ,&nbsp;Ruike Gao ,&nbsp;Jianyang Gao ,&nbsp;Zilin Meng","doi":"10.1016/j.micromeso.2025.113757","DOIUrl":"10.1016/j.micromeso.2025.113757","url":null,"abstract":"<div><div>This study systematically investigates the adsorption mechanism of tetracycline (TC) by three carbonaceous materials-carbon nanotubes (CNTs), graphene oxide (GO), and activated carbon (AC). Using comprehensive characterization (SEM, BET, FT-IR, and Raman), structural and chemical differences among the materials were revealed. Kinetic analysis shows the adsorption process follows the intraparticle diffusion model and pseudo-second-order kinetics, indicating adsorption capacity is governed by effective site accessibility and TC mass transfer. Thermodynamic studies demonstrate varying average site energies with temperature, with isothermal data described by the Generalized Langmuir model, highlighting adsorption site selectivity in the carbon matrix. Site energy distribution theory reveals high-energy sites exhibit superior efficiency and stronger adsorption affinity for TC. XPS analysis confirms oxygen-containing functional groups dominate TC adsorption mediation. This study proposes the site energy distribution theory, which provides important insights into the structure-activity relationship of carbon adsorbents and facilitates the analysis of complex adsorption processes.</div></div>","PeriodicalId":392,"journal":{"name":"Microporous and Mesoporous Materials","volume":"397 ","pages":"Article 113757"},"PeriodicalIF":4.8,"publicationDate":"2025-07-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144623592","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}

{"title":"Optimized encapsulation of bis-ethylhexyloxyphenol methoxyphenyl triazine (BEMT) in porous silica for enhanced UV protection and stability","authors":"Xue Dong ,&nbsp;Chaeheon Woo ,&nbsp;Myunghee Lee ,&nbsp;Kyounghee Shin ,&nbsp;Hak Ki Yu ,&nbsp;Jae-Young Choi","doi":"10.1016/j.micromeso.2025.113763","DOIUrl":"10.1016/j.micromeso.2025.113763","url":null,"abstract":"<div><div>The stability and effectiveness of organic UV filters remain key challenges in sunscreen formulations due to their potential for degradation and skin penetration. In this study, we developed a BS@SiO₂-30 % composite, in which bis-ethylhexyloxyphenol methoxyphenyl triazine (BEMT) was encapsulated within a porous SiO₂ matrix and coated with a hydrophilic SiO₂ layer. This encapsulation process enhanced photostability, and formulation compatibility while preventing skin penetration of BEMT. The composite exhibited an SPF value of 41.75, significantly surpassing the control, demonstrating superior UV protection. Additionally, stability tests confirmed that the hydrophilic SiO₂ coating facilitated even dispersion in aqueous formulations, addressing the limitations of conventional UV filters. These findings highlight the potential of SiO₂-based encapsulation as an effective strategy for improving organic UV filters, paving the way for next-generation, high-performance, and photostable sunscreen formulations.</div></div>","PeriodicalId":392,"journal":{"name":"Microporous and Mesoporous Materials","volume":"397 ","pages":"Article 113763"},"PeriodicalIF":4.8,"publicationDate":"2025-07-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144597192","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}

{"title":"Efficient removal of Sr2+ from aqueous solutions with amino acid-functionalized Zr-MOFs","authors":"Jun-Jiang Yan ,&nbsp;Xiang-Yue Qi ,&nbsp;Ying Han,&nbsp;Chao Chen,&nbsp;Hao Wang,&nbsp;Wei Li,&nbsp;Chuan-Song Qi","doi":"10.1016/j.micromeso.2025.113758","DOIUrl":"10.1016/j.micromeso.2025.113758","url":null,"abstract":"<div><div>The development of efficient adsorbents for rapid strontium ion (Sr²⁺) sequestration holds crucial significance in addressing environmental remediation and radioactive waste management. Herein, we developed a series of zirconium-based metal-organic frameworks (Zr-MOFs: <strong>UiO-66-NH-Cys</strong>, <strong>-Ala</strong>, <strong>-His</strong>, <strong>-Phe</strong>, <strong>-Pro</strong>) functionalized with amino acids through post-synthetic modification (PSM), which improved Sr²⁺ adsorption performance. Notably, <strong>UiO-66-NH-Cys</strong> achieves a superior adsorption capacity (86.21 mg g⁻¹) under optimized conditions (pH 10.0, 298 K, initial concentration 300 mg L⁻¹), outperforming pristine <strong>UiO-66-NH₂</strong> and other amino acid-functionalized analogues. Mechanistic research indicates that Sr²⁺ binding primarily involves coordination with cysteine's thiol (-SH) and amine (-NH₂) groups, complemented by ion exchange processes and electrostatic interaction. This work establishes amino acid-functionalized Zr-MOFs as precision-engineered adsorbents for selective Sr²⁺ removal, while providing a rational design strategy for addressing multifaceted aqueous contamination through targeted molecular engineering.</div></div>","PeriodicalId":392,"journal":{"name":"Microporous and Mesoporous Materials","volume":"397 ","pages":"Article 113758"},"PeriodicalIF":4.8,"publicationDate":"2025-07-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144595997","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}

{"title":"Evolution and prospects of heterogeneous chiral catalysis","authors":"Yuxin Ji ,&nbsp;Changyu Weng ,&nbsp;Longlong Ma,&nbsp;Jianguo Liu","doi":"10.1016/j.micromeso.2025.113748","DOIUrl":"10.1016/j.micromeso.2025.113748","url":null,"abstract":"<div><div>Chiral catalysis enables precise asymmetric synthesis with exceptional stereoselectivity, driving advances in biomedicine and agrochemistry. However, traditional homogeneous systems often suffer from poor recyclability and limited stereoselectivity in complex reactions. Heterogeneous chiral catalysts address these issues through facile separation/reuse and enhanced stability via immobilization strategies, offering sustainable solutions for industrial synthesis. While they have demonstrated significant economic and societal value across various fields, challenges remain regarding catalyst stability and the precise control of stereoselectivity and other aspects. This review focuses on recent advances in heterogeneous chiral catalysts, including MOFs, COFs, HOFs, and SiO₂-based systems. We outline the synthesis and applications of these catalyst classes, summarize their respective advantages and limitations, and discuss strategies to optimize their catalytic performance. The current industrialization bottlenecks are analyzed, and future perspectives on the development of heterogeneous chiral catalysts are provided. This work offers key insights into the design of robust and scalable chiral catalysts for industrial applications.</div></div>","PeriodicalId":392,"journal":{"name":"Microporous and Mesoporous Materials","volume":"397 ","pages":"Article 113748"},"PeriodicalIF":4.8,"publicationDate":"2025-07-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144604983","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}

{"title":"Furanic diesel additives via fructose alcoholysis in one-pot reactor using sulfonic/hydrophobic functionalized three-dimensional ordered mesoporous silica catalysts","authors":"G.L. Pestana,&nbsp;L. Vergara,&nbsp;B.S. Sánchez,&nbsp;G. Mendow,&nbsp;J.M. Grau","doi":"10.1016/j.micromeso.2025.113747","DOIUrl":"10.1016/j.micromeso.2025.113747","url":null,"abstract":"<div><div>The catalytic performance of three-dimensional ordered mesoporous silicas (OMSs), KIT-6 and FDU-12, functionalized with (–SO₃H) groups via different methods, was evaluated for the fructose alcoholysis (45 g.L⁻¹) in ethanol/water (9:1) at 140 °C and 10 bar of N₂ to produce 5-(ethoxymethyl)furfural (EMF), a biodiesel additive. The goal was to identify the optimal acid site density and synthesis/functionalization method that preserve catalyst structural integrity and channel connectivity to maximize EMF yield and selectivity (<em>Y</em>_EMF/<em>S</em>_EMF). OMSs with 10 % and 15 % S/Si were synthesized by (mercaptopropyl-trimethoxy)silane incorporation and oxidation to (-SO₃H) using (i) post-synthesis grafting and oxidation (G), (ii) co-condensation followed by oxidation (C1), and (iii) one-step co-condensation with simultaneous oxidation (C2). The C2 method was the most effective at preserving structural properties and channel interconnectivity. The best acid site densities and EMF yields were 0.87 μmol H⁺.m⁻² for KIT-6 (10 % S/Si, K10(C2) with <em>Y</em>_EMF = 55.6 %) and 1.60 μmol H⁺.m⁻² for FDU-12 (15 % S/Si, F15(C2) with <em>Y</em>_EMF = 78.6 %). The effect of surface amphiphilicity was studied by adding 5.65 % (trimethylmethoxy)silane. Increased hydrophobicity enhanced <em>Y</em>_EMF to 79.7 % for KIT-6 but reduced it to 47.2 % for FDU-12 catalysts. Additionally, in continuous flow experiments with F15(C2), WHSV optimization showed the best results at 0.52 h⁻¹, with an EMF specific production rate of 0.35 g_EMF.g_cat⁻¹.h⁻¹, with an EMF yield and selectivity of <em>Y</em>_EMF = 69 %, <em>S</em>_EMF = 77 %, stable over 6.5 h. After 16 h on stream, a 14.2 % drop in <em>Y</em>_EMF was observed compared to the value obtained upon reaching steady state.</div></div>","PeriodicalId":392,"journal":{"name":"Microporous and Mesoporous Materials","volume":"397 ","pages":"Article 113747"},"PeriodicalIF":4.8,"publicationDate":"2025-07-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144569928","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}

{"title":"Progress and expansion of ADOR zeolites","authors":"Wieslaw J. Roth ,&nbsp;Jiří Čejka","doi":"10.1016/j.micromeso.2025.113738","DOIUrl":"10.1016/j.micromeso.2025.113738","url":null,"abstract":"<div><div>Selective disassembly of zeolites to provide building blocks for controllable reassembly into new 3-dimensional and expanded structures has been hindered by the overall robustness of their frameworks. Zeolite UTL with high content of germanium atoms located predominantly in its D4R units proved to be susceptible to hydrolysis producing 1 nm thick layers that could be reorganized and reassembled yielding new zeolites including unfeasible ones based on thermodynamics of conventional bottom-up zeolite syntheses. This Assembly (of UTL)-Disassembly (into layers)-Organization-Reassembly (new structures), abbreviated ADOR, has been extended to other frameworks making it a general strategy for similar high-Ge zeolites and possibly others with built-in weakness enabling disassembly into 2D and potentially 1D periodic units. UTL has provided the largest number of diverse structures, both 3D frameworks and 2D architectures, so it is discussed in this perspective as the model system and template for developing analogous materials with other zeolites. Its notable features include continuously tunable porosity through hydrolysis dependent on acid concentration and organization into 4 different structures by layer shifts. These processes are controlled by Ge concentration and distribution, crystal properties and other variables, which must be worked out for other zeolites. The perspective includes possibilities for future developments and issues to be investigated.</div></div>","PeriodicalId":392,"journal":{"name":"Microporous and Mesoporous Materials","volume":"397 ","pages":"Article 113738"},"PeriodicalIF":4.8,"publicationDate":"2025-07-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144580138","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}

{"title":"On the use of a bulky base for evaluating the accessibility of Brønsted acid sites in USY zeolites","authors":"Yuna Han,&nbsp;Mickael Rivallan,&nbsp;Kim Larmier,&nbsp;Gerhard D. Pirngruber","doi":"10.1016/j.micromeso.2025.113746","DOIUrl":"10.1016/j.micromeso.2025.113746","url":null,"abstract":"<div><div>In this study, we investigate the diffusion kinetics in mesoporous-microporous USY zeolites using tri-tert-butyl-pyridine (ttBPy). A series of zeolites with varying textural properties were prepared using dealumination and desilication methods, and the kinetic parameters for diffusion on the active sites through micro- and mesopores were extracted by fitting a Linear Driving Force (LDF) model. The diffusion model assumes a two step process in which the adsorptive first diffuses from the gas phase into the mesopores, and then continues into the micropores. We find that the fraction of acid sites in mesopores (f_meso) correlates well with both mesopore volume and surface area, while the apparent diffusion rate constant in micropore domain (k'_micro) is mainly influenced by mesopore surface area. Both dealumination and desilication were effective in enhancing diffusion. Dealumination improved accessibility without significant generation of mesopore volume due to the removal of a crust of amorphous species that blocked access to micropores from the external surface. In contrast, desilication introduced additional mesopores that serve as entry points to the microporous network within the crystal. These results provide a quantitative comparison of diffusion rates in mesopores and micropores and offer practical insights into tailoring pore structures for optimal mass transport, particularly in applications involving bulky molecules.</div></div>","PeriodicalId":392,"journal":{"name":"Microporous and Mesoporous Materials","volume":"397 ","pages":"Article 113746"},"PeriodicalIF":4.8,"publicationDate":"2025-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144597191","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}

{"title":"Role of textural properties of clay-based microporous materials on their CH4/CO2 separation performances in the context of biogas upgrading","authors":"Anwar El Azrak,&nbsp;Denys I. Grekov,&nbsp;Pascaline Pré","doi":"10.1016/j.micromeso.2025.113749","DOIUrl":"10.1016/j.micromeso.2025.113749","url":null,"abstract":"<div><div>The separation of CO₂ and CH₄ in the biogas upgrading context is a crucial step toward increasing the share of renewable bio-methane in natural gas infrastructure. Adsorption-based processes, particularly Vacuum/Pressure Swing Adsorption (V/PSA), are widely used for CO₂ removal owing to their energy efficiency and scalability. This study examines the CO₂ and CH₄ adsorption capacities of various natural and synthetic smectite clay minerals with differing layer charges, exchanged with Na⁺, Cs⁺, and TMA⁺ cations, to assess their potential as selective adsorbents in separation processes. X-ray diffraction analysis revealed systematic shifts in basal spacing under the effect of cation exchange, related to the interlayer spaces expansion. Textural properties, including specific surface area (S_BET) and micropore volume (V_μp) were determined using the BET and <em>t-plot</em> models applied to N₂ adsorption isotherms at −196 °C. The fraction of high-energy surface sites (HESS) was assessed from high-resolution Ar adsorption isotherm data measured at −186 °C. Equilibrium separation performances were determined from measurements of CO₂ and CH₄ adsorption capacities and binary mixture selectivities. These data were analysed according to clay structural and textural properties. Experimental results reveal that the non-exchanged synthetic nano-clays demonstrate higher selectivity than natural counterparts, likely due to their larger density of surface defects enhancing CO₂ interactions at low pressures. Cs ⁺ -exchanged clays exhibit narrow interlayer microporosity, which contributes to improve the CO₂ adsorption selectivity while excluding CH₄ due to steric effects. In contrast, the TMA⁺-exchanged forms show significant interlayer expansion, enhancing both CH₄ and CO₂ uptakes, but degrading adsorption selectivity. A quantitative screening of the clay systems based on the computation of hybrid material metrics suggests that tailoring interlayer spaces thanks to cation exchange may significantly improve separation performances of Vacuum/Pressure Swing Adsorption processes.</div></div>","PeriodicalId":392,"journal":{"name":"Microporous and Mesoporous Materials","volume":"396 ","pages":"Article 113749"},"PeriodicalIF":4.8,"publicationDate":"2025-07-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144548927","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}