Microporous and Mesoporous Materials最新文献

{"title":"Application of Raman spectroscopy and chemometrics in the mechanochemical synthesis of TIFSIX-3-Ni HUMs using twin screw extrusion","authors":"Ahmed Metawea ,&nbsp;Ahmad B. Albadarin ,&nbsp;Ozren Jovic ,&nbsp;Nicolas Abdel Karim Aramouni ,&nbsp;Gavin Walker ,&nbsp;Rabah Mouras","doi":"10.1016/j.micromeso.2025.113558","DOIUrl":"10.1016/j.micromeso.2025.113558","url":null,"abstract":"<div><div>Hybrid ultra-microporous materials (HUMs) are a novel category of porous materials featuring a distinctive 3D structure composed of square lattice layers. In this study, HUMs was produced on a small scale using either solvothermal or ball milling synthesis methods. Building on the successful synthesis of HUMs via ball milling, twin-screw extrusion (TSE) appears to be a suitable method for large-scale and potentially continuous synthesis. The effect of process parameters, such as feeding rate, screw speed, barrel temperature, and liquid-to-solid ratio L/S (m/m), on the properties of the TIFSIX-3-Ni HUM was investigated. The results are presented in two sections: In the first section, we conducted a characterization and qualitative investigation to determine the crystallinity of the collected powder by analysing PXRD diffractograms. The second section involves a quantitative study using partial least squares (PLS) multi-variate analysis to measure the conversion rate of the HUM acquired. This was achieved by utilizing the most effective developed calibration model. The PXRD analysis revealed that the most favourable parameters for producing the HUM involve operating at 50 and 150 RPM, at L/S of 0.5 (m/v), and manually feeding. The highest yield of inactivated TIFSIX-3-Ni was 77.7 %, achieved using Raman spectroscopy combined with the PLS model for quantitative analysis This study marks the first successful continuous synthesis of HUMs and the development of a predictive model for process optimization.</div></div>","PeriodicalId":392,"journal":{"name":"Microporous and Mesoporous Materials","volume":"391 ","pages":"Article 113558"},"PeriodicalIF":4.8,"publicationDate":"2025-03-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143777604","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Preparation of hollow tubular polyaniline fibers and adsorption studies of sulfadiazine","authors":"Huixian Liu ,&nbsp;Guohao Zhai ,&nbsp;Nana Xue ,&nbsp;Yuxuan Ma ,&nbsp;Shanshan Wang ,&nbsp;Shuai Liu","doi":"10.1016/j.micromeso.2025.113581","DOIUrl":"10.1016/j.micromeso.2025.113581","url":null,"abstract":"<div><div>To address the problem of water pollution caused by antibiotics, hollow tubular polyaniline (PANI) was prepared using a chemical oxidation method to study the adsorption behavior of sulfadiazine (SDZ) in water. The results showed that the prepared material was hollow tubular emerald green imine-type PANI with abundant amino and imino groups and a large specific surface area, capable of high-efficiency adsorption. XRD, XPS, BET, FT-IR, and Raman demonstrated that the adsorption mechanism of the pollutants by PANI mainly involves electrostatic attraction, hydrogen-bonding adsorption, hydrophobic force interaction between benzene rings, and π-π conjugate adsorption. The adsorption behavior is more consistent with the pseudo-secondary kinetic equation, and the adsorption isotherms at different temperatures conformed to the model differently. The adsorption thermodynamic experiments showed that the adsorption of SDZ by the material was spontaneous and exothermic. The prepared PANI has excellent adsorption and removal ability for SDZ in water, and the theoretical adsorption value fitted by its Langmuir isotherm model can reach 22.39 mg/g.</div></div>","PeriodicalId":392,"journal":{"name":"Microporous and Mesoporous Materials","volume":"390 ","pages":"Article 113581"},"PeriodicalIF":4.8,"publicationDate":"2025-03-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143579509","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":"Construction of a noise Algorithm–Based three-dimensional porous adsorption model of coal and study of coal-oxygen physisorption kinetics","authors":"Zhifan Song ,&nbsp;Zhiyu Dong ,&nbsp;Zhifan Lu ,&nbsp;Kaiwen Ren ,&nbsp;Peng Xie ,&nbsp;Junfeng Wang","doi":"10.1016/j.micromeso.2025.113580","DOIUrl":"10.1016/j.micromeso.2025.113580","url":null,"abstract":"<div><div>In view of the difficulty of accurately characterizing the dynamic process of coal-oxygen physisorption using existing models, this study constructed three-dimensional (3D) porous adsorption models of coal based on a noise algorithm, and the kinetics of coal oxygen physisorption was investigated based on this model. The degree of metamorphism and pore characteristics of the coal samples were determined via industrial analysis and pore structure characterization, and high-pressure isothermal adsorption experiments were carried out to determine the isothermal adsorption lines of coal oxygen at different temperatures. The experimental data were fitted to construct a mathematical model under the joint influence of temperature and pressure, and a 3D porous adsorption model for coal was constructed based on the experimental results to explore the adsorption kinetic process. Revealing that the amount of oxygen adsorbed was negatively correlated with temperature, and coal samples with less deterioration possessed larger specific surface areas and pore volumes, resulting in a stronger oxygen adsorption ability. The coal-oxygen isothermal adsorption data fitted well with the Langmuir adsorption model, and the fitted oxygen adsorption values were similar to the experimental data. Numerical simulations using the constructed models indicated that the adsorption process of oxygen on the coal particle surface could be divided into three stages: (1) the seepage stage, in which oxygen is adsorbed by the outer surface of the coal body and its surface pores; (2) the surface diffusion stage, in which oxygen diffuses to the inner region of the coal particles through their pores; and (3) the deep adsorption stage, in which oxygen is adsorbed in the deep pores of the coal particles, enabling complete adsorption. Coal-oxygen adsorption reached equilibrium in a short time, the amount of oxygen adsorbed rapidly increased during the initial stage of adsorption, approaching the maximum value at 0.4 ms, and then the adsorption rate gradually decreased into the slow adsorption stage, finally reaching equilibrium at 1.0 ms. The model results indicated that oxygen adsorption was negatively correlated with temperature and positively correlated with adsorption equilibrium pressure, which aligned with the experimental rule.</div></div>","PeriodicalId":392,"journal":{"name":"Microporous and Mesoporous Materials","volume":"390 ","pages":"Article 113580"},"PeriodicalIF":4.8,"publicationDate":"2025-03-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143600805","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":"Synergistic regulation of photoluminescence in covalent organic frameworks by linkages and functional groups","authors":"Lei Fang ,&nbsp;Shaoping Feng ,&nbsp;Heping Yan ,&nbsp;Na Wu ,&nbsp;Gaozhang Gou","doi":"10.1016/j.micromeso.2025.113579","DOIUrl":"10.1016/j.micromeso.2025.113579","url":null,"abstract":"<div><div>Covalent organic frameworks (COFs) provide considerable design flexibility concerning linkages and functional groups. By modulating the degree of conjugation, charge delocalization, and π-π stacking of COFs, promising photoluminescent materials can be developed. Here, we synthesized a series of 2D COFs containing aggregation-caused quenching (ACQ) groups (pyrene), and the fluorescence of the pyrene moiety was fine-tuned by varying the linkers (imine, olefin) and functional groups (‒OH, ‒OMe, ‒F). Compared to imine-based COFs, the olefin-linked COF (Olefin-COF-F) exhibited significantly enhanced photoluminescence, with ten times higher quantum efficiency than Imine-COF. Olefin-COF-F benefits from interlayer hydrogen bonding and can detect HCl <em>via</em> fluorescence turn-off behavior and showed fluorescence turn-on behavior in NaOH solutions. Coating blue light-emitting diodes with Olefin-COF-F resulted in a high-purity white-light device. This research offers valuable insights into the controlled synthesis of COF-based photoluminescent materials featuring ACQ groups.</div></div>","PeriodicalId":392,"journal":{"name":"Microporous and Mesoporous Materials","volume":"390 ","pages":"Article 113579"},"PeriodicalIF":4.8,"publicationDate":"2025-03-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143579581","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":"Acetylene hydrochlorination catalyzed by N/O-doped spiral mesoporous carbonaceous nanospheres","authors":"Zehong Zhu ,&nbsp;Qingxin Wu ,&nbsp;Xueying Wang ,&nbsp;Haiyang Zhang ,&nbsp;Jian Li ,&nbsp;Yanzhao Dong ,&nbsp;Yongsheng Xu ,&nbsp;Yunsheng Dai ,&nbsp;Jinli Zhang","doi":"10.1016/j.micromeso.2025.113577","DOIUrl":"10.1016/j.micromeso.2025.113577","url":null,"abstract":"<div><div>Here, the spiral mesoporous hydrothermal carbonaceous nanospheres (SMHNs) were designed and fabricated from pentose precursors to enhance gas diffusion in acetylene hydrochlorination. Through the optimization of hydrothermal conditions, the optimized SMCNs-800 material showcased the highest catalytic activity with an acetylene conversion of 77 % under the condition of GHSV (C₂H₂) = 30 h⁻¹. The structural analysis indicated that the material with helical structure could provide larger pore sizes and abundant defect sites, exposing more active sites. The structure-activity relationship among acid-base properties of the catalyst surface, the adsorption-desorption capacity for the reactants and the catalytic activity jointly demonstrated that pyridine-N and -C=O could provide abundant basic sites for the adsorption and activation of H-Cl, thus accelerating the process of acetylene hydrochlorination reaction.</div></div>","PeriodicalId":392,"journal":{"name":"Microporous and Mesoporous Materials","volume":"389 ","pages":"Article 113577"},"PeriodicalIF":4.8,"publicationDate":"2025-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143549142","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 in pillar[5]arene-based silicon porous materials: From preparation to applications","authors":"Taotao Lu ,&nbsp;Hui Li ,&nbsp;Yanping Zheng ,&nbsp;Lei Shi ,&nbsp;Rong Nie ,&nbsp;Liang Zhao ,&nbsp;Yanxing Qi","doi":"10.1016/j.micromeso.2025.113576","DOIUrl":"10.1016/j.micromeso.2025.113576","url":null,"abstract":"<div><div>Pillar[5]arene, a novel class of pillar-shaped macrocyclic hosts, has demonstrated significant potential across diverse fields due to its symmetrical pillar-shaped structures, flexible functionalization, and unique host–guest interactions. Moreover, pillar[5]arene-based functional materials have garnered considerable interest owning to their unique topological and chemical structures, as well as their physicochemical properties. In this review, we discuss the exceptional properties of pillar[5]arene-based silicon materials. Specifically, we summarize the preparation of complex pillar[5]arene-based silicon materials and their applications in molecular recognition, chromatographic separation, adsorption and controllable release (including pH, electron, temperature, ions, gas, multiresponsive controlled release and osmotic release). Finally, we outline the future perspectives of pillar[5]arene chemistry. We anticipate that this review will serve as a valuable reference for researchers in the field and inspire new discoveries related to pillar[5]arene-based materials.</div></div>","PeriodicalId":392,"journal":{"name":"Microporous and Mesoporous Materials","volume":"389 ","pages":"Article 113576"},"PeriodicalIF":4.8,"publicationDate":"2025-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143549145","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":"Phosphotungstic anions-based imidazolium porous ionic polymer for oxidation of alcohols with hydrogen peroxide","authors":"Lin Lei ,&nbsp;Jiaxian Chen ,&nbsp;Jinhong Xiao ,&nbsp;Yongjian Qiu ,&nbsp;Qinggang Ren ,&nbsp;Yaju Chen ,&nbsp;Hongbing Ji","doi":"10.1016/j.micromeso.2025.113571","DOIUrl":"10.1016/j.micromeso.2025.113571","url":null,"abstract":"<div><div>An imidazolium-based hyper-crosslinked porous ionic polymer (IHPiP) immobilized phosphotungstic (PW) anions hybrid catalyst (IHPiP-PW) was synthesized based on a one-pot Friedel–Crafts alkylation and quaternization reaction, followed by anion exchange. The obtained IHPiP-PW exhibited a high specific surface area of 615 m² g⁻¹ containing plentiful hierarchical pores. IHPiP-PW was effective in the oxidation of 1-phenylethanol into acetophenone with H₂O₂ to give a high conversion of 95.7 % and quantitative selectivity. A remarkable turnover number of 3300 and initial turnover frequency of 914.0 h⁻¹ were obtained at a substrate/PW molar ratio of 4000. Kinetic study demonstrated that 1-phenylethanol oxidation obeyed pseudo-first-order kinetics and the apparent activation energy was calculated to be 26.116 kJ mol⁻¹. This catalytic system was tolerant of a wide range of substrates. Moreover, IHPiP-PW could be readily recovered and effectively reused for six cycles without significant catalytic activity loss.</div></div>","PeriodicalId":392,"journal":{"name":"Microporous and Mesoporous Materials","volume":"390 ","pages":"Article 113571"},"PeriodicalIF":4.8,"publicationDate":"2025-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143562202","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":"Synthesis and characterization of series of Ca-MCM-41 nanoporous structures for effective elimination of sulfate ions; insight into the used calcium precursor and realistic studies","authors":"Alshaima Sayed ,&nbsp;Ahmed M. El-Sherbeeny ,&nbsp;Gouda Ismail Abdel-Gawad ,&nbsp;Wail Al Zoubi ,&nbsp;Essam A. Mohamed ,&nbsp;Mostafa R. Abukhadra","doi":"10.1016/j.micromeso.2025.113578","DOIUrl":"10.1016/j.micromeso.2025.113578","url":null,"abstract":"<div><div>Three varieties of calcium-bearing mesoporous silica (MCM-41) were synthesized using different types of natural calcium carbonate precursors (limestone (L.MCM), coral reefs (C.MCM), and marble (M.MCM). The different varieties were characterized by different analytic techniques confirming their formation as Ca-MCM-41 with mesoporous properties and possessing different morphologies. They were applied in adsorption studies for sulfate ions, achieving saturation capacities of 135.9 mg/g (L MCM), 167.9 mg/g (C MCM), and 141 mg/g (M MCM). The better performance of C.MCM than the other forms is in agreement with its morphological aspects and its enhanced surface area (159.6 m²/g) in addition to the supporting theoretical findings. Modeling the uptake process based on the concepts and parameters of statistical physics declared enrichment of C.MCM surface with a higher density of active sites (Nm = 86.5 mg/g) as compared to L.MCM (64.7 mg/g) and 68.14 mg/g (M MCM). Each of these sites can accommodate up to 3 sulfate ions, donating the impact of multi-ionic interactions mechanisms in addition to their adsorption in parallel and vertical orientations. Energetic and thermodynamic assessment implies uptake of sulfate by exothermic reactions of spontaneous behaviors displaying uptake energy less than 8 kJ/mol. This energetic level corresponds to the physical adsorption mechanisms, including hydrogen bonding and van der Waals forces. The C.MCM structure (1.2 g/L) was applied effectively in realistic sequestration of sulfate from seawater along the Gulf of Suez, reducing its content (2614 mg/L) by about 42 %, adsorbing about 1103 mg of sulfate ions.</div></div>","PeriodicalId":392,"journal":{"name":"Microporous and Mesoporous Materials","volume":"390 ","pages":"Article 113578"},"PeriodicalIF":4.8,"publicationDate":"2025-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143579095","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":"Effect of secondary acid treatment on the structure of Ti-MWW zeolite and its catalytic performance","authors":"Shaoqing Jin,&nbsp;Qiangqiang Luo,&nbsp;Xueyan Fan,&nbsp;Hongmin Sun,&nbsp;Weimin Yang","doi":"10.1016/j.micromeso.2025.113572","DOIUrl":"10.1016/j.micromeso.2025.113572","url":null,"abstract":"<div><div>Although Ti-MWW zeolite has received lots of attention due to its superior catalytic oxidation performance, it's still challenging to obtain boron-free Ti-MWW zeolite with few defects and high catalytic performance by a simple way. Herein, secondary acid treatment was utilized to modify the structure of Ti-MWW zeolite and its catalytic behavior. It was found that almost all the framework boron atoms could be removed by secondary acid treatment under different conditions. However, different from secondary acid treatment under low-temperature &amp; high-acid concentration (LTHC) condition, that under high-temperature &amp; low-acid concentration (HTLC) condition can heal the silanol nests originally existing and formed during boron removal through silicon migration, remarkably improving the hydrophobicity, the micro-environment of framework TiO₄ species (Fw-TiO₄) and thus the catalytic activity in 1-hexene epoxidation in spite of a certain amount of inactive anatase TiO₂ species formed. This study would be helpful for the post modification and understanding of Ti-MWW zeolite.</div></div>","PeriodicalId":392,"journal":{"name":"Microporous and Mesoporous Materials","volume":"389 ","pages":"Article 113572"},"PeriodicalIF":4.8,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143549144","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":"Impact of modified acidity and diffusion on ethylene-to-propylene reaction via size and shape controlled SSZ-13 zeolite","authors":"Su-Un Lee ,&nbsp;Jun-Hyuk Ahn ,&nbsp;Wang-Geun Shim ,&nbsp;Sungjune Lee ,&nbsp;Kwang-Eun Jeong ,&nbsp;Su Ah Kang ,&nbsp;Chul-Ung Kim ,&nbsp;Jeong-Chul Kim ,&nbsp;Tae-Wan Kim","doi":"10.1016/j.micromeso.2025.113573","DOIUrl":"10.1016/j.micromeso.2025.113573","url":null,"abstract":"<div><div>The particle size of SSZ-13 zeolites, while maintaining a consistent cubic shape and uniform Si/Al₂ ratios, was successfully controlled from 100 nm to 900 nm via seed-assisted interzeolite conversion of Y zeolites in the presence of TMAdaOH and NaOH. Despite the consistent Si/Al₂ ratio, variations in particle size induced significant changes in acidic properties, attributed to alterations in the coordination of aluminum species on the zeolite surface. Specifically, smaller particle sizes and spherical morphology resulted in reduced acidity, particularly at the strong acid sites. Propane equilibrium isotherms also revealed that the modifications of particle size and the associated acidity substantially influence the diffusion and residence time of reactants and products. In ethylene-to-propylene (ETP) reactions, smaller particle sizes in cubic SSZ-13 enhanced diffusion and reduced acidity, minimizing undesirable successive reactions and increasing propylene selectivity. However, excessive diffusion and weaker acidity caused the premature escape of intermediates, demonstrating a volcano-type relationship between particle size and catalytic efficiency. Notably, 250 nm-cubic SSZ-13 achieved an optimal balance of diffusion and acidity via size and shape control, leading to slower deactivation, higher propylene selectivity, and greater propylene yield. These findings provide valuable insights into the interplay between morphological modifications, physicochemical properties, and catalytic performance, offering a foundation for advancing the design of catalytic materials.</div></div>","PeriodicalId":392,"journal":{"name":"Microporous and Mesoporous Materials","volume":"390 ","pages":"Article 113573"},"PeriodicalIF":4.8,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143579580","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}