Microporous and Mesoporous Materials最新文献

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Charge transformation of hollow mesoporous hydroxyapatite (HM-HAP) and its application in the efficient removal of anionic dyes 中空介孔羟基磷灰石(HM-HAP)的电荷转化及其在高效脱除阴离子染料中的应用
IF 4.7 3区 材料科学
Microporous and Mesoporous Materials Pub Date : 2025-09-09 DOI: 10.1016/j.micromeso.2025.113852
Farishta Shafiq , Chenyu Liu , Simiao Yu , Yongxin Pan , Min Ji , Qingzhao Shi , Weihong Qiao
{"title":"Charge transformation of hollow mesoporous hydroxyapatite (HM-HAP) and its application in the efficient removal of anionic dyes","authors":"Farishta Shafiq ,&nbsp;Chenyu Liu ,&nbsp;Simiao Yu ,&nbsp;Yongxin Pan ,&nbsp;Min Ji ,&nbsp;Qingzhao Shi ,&nbsp;Weihong Qiao","doi":"10.1016/j.micromeso.2025.113852","DOIUrl":"10.1016/j.micromeso.2025.113852","url":null,"abstract":"<div><div>Surface functionalization plays a critical role in modifying the properties of adsorbents for selective removal of dyes from aqueous solutions. However, achieving controlled functionalization of hollow mesoporous hydroxyapatite (HM-HAP) particles while maintaining its structural integrity continuous to be a significant problem in adsorption research. This work involved hydrothermal synthesis of HM-HAP particles by utilizing a CaCO<sub>3</sub> core template followed by surface functionalization with different concentrations of (3-Aminopropyl)triethoxysilane (APTES). The functionalization altered the negatively charged HM-HAP surface to a positively charged one, as shown by a change in point of zero charge (PZC), zeta potential and surface morphology. The adsorption performance of APTES/HM-HAP adsorbent was examined using RYD-145 and SY as model anionic dyes. The equilibrium data was best described by the Langmuir isotherm model with R<sup>2</sup> value 0.99, indicating monolayer adsorption, with maximum uptake capacity (<em>q</em><sub><em>m</em></sub>) values of 525.6 mg g<sup>−1</sup> for RYD-145 and 297.13 mg g<sup>−1</sup> for SY. Kinetic investigations indicated that the adsorption process followed the pseudo-second-order model with R<sup>2</sup> values 0.97 and 0.96 for RYD-145 and SY, suggesting a chemisorption mechanism. Thermodynamic studies revealed that the adsorption of RYD-145 was endothermic, whereas SY was exothermic, with both processes being spontaneous (<em>ΔG°</em> &lt; 0). Desorption studies demonstrated that NaOH was the most effective eluent, with desorption efficiencies of 88.5 % for RYD-145 and 87.3 % for SY. The adsorbent retained approximately 80 % of its adsorption efficiency during four consecutive cycles, demonstrating excellent reusability. Moreover, the adsorbent was applied to real industrial dye wastewater, exhibiting remarkable efficiency in reducing dye concentration. A guppy fish bioassay validated a substantial decrease in toxicity, with the APTES/HM-HAP treated water exhibiting no fish mortality or dermal damage, unlike the untreated sample. Furthermore, the chemical oxygen demand (COD) was decreased from 2316 mg L<sup>−1</sup> to 755 mg L<sup>−1</sup> post treatment, signifying effective removal of the organic pollutants. This study offers a comprehensive strategy for designing functionalized adsorbents, emphasizing the significance of surface chemistry in improving dye adsorption. APTES-modified HM-HAP provides an efficient, selective, and reusable method for the removal of anionic dyes from wastewater, addressing a significant environmental issue.</div></div>","PeriodicalId":392,"journal":{"name":"Microporous and Mesoporous Materials","volume":"399 ","pages":"Article 113852"},"PeriodicalIF":4.7,"publicationDate":"2025-09-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145046952","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
Lithocholic acid-modulated synthesis of anatase-free TS-1 zeolite with Ti-rich framework for superior alkene oxidation 富钛骨架无锐钛矿型TS-1沸石的酸调合成
IF 4.7 3区 材料科学
Microporous and Mesoporous Materials Pub Date : 2025-09-08 DOI: 10.1016/j.micromeso.2025.113853
Xiaojing Song , Shuang Liu , Shuang Gao , Zuochao Wang , Hao Zhang
{"title":"Lithocholic acid-modulated synthesis of anatase-free TS-1 zeolite with Ti-rich framework for superior alkene oxidation","authors":"Xiaojing Song ,&nbsp;Shuang Liu ,&nbsp;Shuang Gao ,&nbsp;Zuochao Wang ,&nbsp;Hao Zhang","doi":"10.1016/j.micromeso.2025.113853","DOIUrl":"10.1016/j.micromeso.2025.113853","url":null,"abstract":"<div><div>TS-1 zeolite, recognized as milestones in zeolite catalysis, require precision engineering to balance framework Ti incorporation and anatase suppression for superior epoxidation performance. Herein, we report a one-step hydrothermal strategy using lithocholic acid (LCA) as bifunctional zeolite growth regulator to synthesize anatase-free TS-1 zeolite with Ti-rich framework. Time-resolved crystallization combined with characterizations reveals the regulation of LCA, in which LCA extends induction period of TS-1 synthesis through carboxylate/hydroxy-mediated Ti-O-Si coordination, enabling the higher framework Ti incorporation while suppressing anatase phase formation. The optimized TS-1-0.1LCA exhibits exceptional catalytic performance in H<sub>2</sub>O<sub>2</sub>-mediated 1-hexene oxidation with 52 % of conversion and 97 % of selectivity to epoxides. Besides, the TOF value of TS-1-0.1LCA is over 3-fold (200 h<sup>−1</sup> vs 64 h<sup>−1</sup>) than that of TS-1-Con. This work establishes a systematic framework for designing highly efficient TS-1 catalysts through LCA-directed coordination engineering, bridging fundamental zeolite chemistry and industrial epoxidation processes.</div></div>","PeriodicalId":392,"journal":{"name":"Microporous and Mesoporous Materials","volume":"399 ","pages":"Article 113853"},"PeriodicalIF":4.7,"publicationDate":"2025-09-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145020435","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
Effects of Beta particle size on Diels–Alder conversion of 2,5-dimethylfuran and acrylic acid to para-xylene 粒径对2,5-二甲基呋喃和丙烯酸Diels-Alder转化为对二甲苯的影响
IF 4.7 3区 材料科学
Microporous and Mesoporous Materials Pub Date : 2025-09-08 DOI: 10.1016/j.micromeso.2025.113854
Bing Yan , Xu Chen , Jie Huang , Guangming Min , Zonghui Liu , Lei Shi , Bing Xue
{"title":"Effects of Beta particle size on Diels–Alder conversion of 2,5-dimethylfuran and acrylic acid to para-xylene","authors":"Bing Yan ,&nbsp;Xu Chen ,&nbsp;Jie Huang ,&nbsp;Guangming Min ,&nbsp;Zonghui Liu ,&nbsp;Lei Shi ,&nbsp;Bing Xue","doi":"10.1016/j.micromeso.2025.113854","DOIUrl":"10.1016/j.micromeso.2025.113854","url":null,"abstract":"<div><div>The process of producing <em>para</em>-xylene (PX) from 2,5-dimethylfuran (DMF) via Diels-Alder (D-A) cycloaddition over Beta zeolites was recognized as a green and sustainable pathway for PX production. Theoretically, small zeolite particles need to be synthesized to mitigate mass transfer limitations caused by their inherent microporous structure, but particle size changes simultaneously alter crystallinity, acidity, and pore characteristics. The effects of these factors on the Diels-Alder (D-A) cycloaddition reaction have not yet been fully elucidated. In this study, Beta zeolites with average particle sizes of 100 nm, 180 nm, 450 nm, and 760 nm were prepared and applied to the D-A cycloaddition of DMF reaction. All Beta zeolites exhibited a polycrystalline structure composed of nanocrystallites and featured both micropores and mesopores. The turnover frequency (TOF) of Beta zeolite with 760 nm particle size was approximately one-third that of the other three zeolites at 160 °C, and its apparent activation energy (<em>E</em><sub><em>a</em></sub>) for PX formation was significantly lower than that of the smaller-particle zeolites. The reduced activity and <em>E</em><sub><em>a</em></sub> were primarily attributed to significant mass transfer limitation in larger-particle zeolites, with this limitation mainly originating from lengthened diffusion paths, diminished mesoporosity, mismatch in structure, and micropore alignment by internal grain boundaries. Within the particle size range where mass transfer limitations were eliminated, excessively small particle size can also detrimentally impact catalytic performance, owing to easier crystallinity reduction during the reaction.</div></div>","PeriodicalId":392,"journal":{"name":"Microporous and Mesoporous Materials","volume":"399 ","pages":"Article 113854"},"PeriodicalIF":4.7,"publicationDate":"2025-09-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145027352","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
Heteroatoms-rich hyper-cross-linked polymers for rapid adsorption of chlortetracycline 富杂原子超交联聚合物对氯四环素的快速吸附
IF 4.7 3区 材料科学
Microporous and Mesoporous Materials Pub Date : 2025-09-06 DOI: 10.1016/j.micromeso.2025.113838
Lili Zhang , Yafen Dai , Shiqi Zhang , Jincheng Ji , Changxin Li , Hong Wang
{"title":"Heteroatoms-rich hyper-cross-linked polymers for rapid adsorption of chlortetracycline","authors":"Lili Zhang ,&nbsp;Yafen Dai ,&nbsp;Shiqi Zhang ,&nbsp;Jincheng Ji ,&nbsp;Changxin Li ,&nbsp;Hong Wang","doi":"10.1016/j.micromeso.2025.113838","DOIUrl":"10.1016/j.micromeso.2025.113838","url":null,"abstract":"<div><div>Conventional adsorbents often suffer from limited adsorption kinetics and capacity for chlortetracycline (CTC). Here, two dual maleimide-based hyper-crosslinked polymers (HCP-BMI-1 and HCP-BMI-2) via one-step Friedel-Crafts alkylation were synthesized using bismaleimide (containing N/O functionalities) as the monomer and DCX (1,4-bis(chloromethyl)benzene) or BCMBP (4,4′-bis(chloromethyl)-1,1′-biphenyl) as cross-linkers. The choice of cross-linker significantly influenced polymer properties, including morphology, chemical composition, and pore structure. Notably, HCP-BMI-2 exhibited a hierarchical structure formed by the spontaneous aggregation of nanoparticles in non-uniform arrangements. Compared to HCP-BMI-1, HCP-BMI-2 displayed superior physicochemical properties: a higher BET surface area (938 m<sup>2</sup>/g), enhanced pore volume (0.758 cm<sup>3</sup>/g, 80 % meso/macropores), and increased heteroatom content (N: 2.96 %, O: 10.02 %). These characteristics contributed to its enhanced CTC adsorption performance. Owing to its excellent hydrophilicity and heteroatom-rich framework, HCP-BMI-2 achieved rapid adsorption (495 mg/g within 30 min), outperforming most reported adsorbents in both kinetics and maximum capacity. Mechanistic studies revealed that CTC uptake was governed by hydrogen bonding, electrostatic interactions, and π-π stacking. Moreover, HCP-BMI-2 retained high adsorption efficiency after 10 regeneration cycles, demonstrating robust reusability. This work provides a strategic approach to designing high-performance adsorbents for efficient CTC removal.</div></div>","PeriodicalId":392,"journal":{"name":"Microporous and Mesoporous Materials","volume":"399 ","pages":"Article 113838"},"PeriodicalIF":4.7,"publicationDate":"2025-09-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145011087","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
Synthesis of Core–Shell ETS-4@LSX zeolite composite to enhance CO2/N2 selectivity in flue gas separation 核壳分子筛复合材料ETS-4@LSX的合成以提高烟气分离中CO2/N2的选择性
IF 4.7 3区 材料科学
Microporous and Mesoporous Materials Pub Date : 2025-09-04 DOI: 10.1016/j.micromeso.2025.113840
Amit R. Birje , Aadesh R. Shrotri , Sachin U. Nandanwar
{"title":"Synthesis of Core–Shell ETS-4@LSX zeolite composite to enhance CO2/N2 selectivity in flue gas separation","authors":"Amit R. Birje ,&nbsp;Aadesh R. Shrotri ,&nbsp;Sachin U. Nandanwar","doi":"10.1016/j.micromeso.2025.113840","DOIUrl":"10.1016/j.micromeso.2025.113840","url":null,"abstract":"<div><div>The selective removal of CO<sub>2</sub> from the flue gas remains a quite challenging due to the weak selectivity of CO<sub>2</sub>/N<sub>2</sub> in adsorbents. Therefore, it is necessary to design an effective sorbent to improve its selectivity. This work attempts to synthesis of novel core-shell ETS-4@LSX composite via a seed-assisted hydrothermal method. In this composite structure, a small pore titanosilcate ETS-4 as a core, while a large pore aluminosilicate LSX forms the outer shell<em>.</em> The effects of ETS-4 seed loading (1–5 wt.%) and crystallization time on the formation and structural integrity of the core–shell architecture was systematically investigated<em>.</em> The structural and physicochemical properties of samples were characterized by XRD, FE-SEM, HR-TEM, EDS, FT-IR, TGA, N<sub>2</sub> adsorption-desorption, and pore size distribution. From XRD pattern and FE-SEM results confirmed that the composite synthesized with 2 wt% ETS-4 seed and 3 h crystallization time has pure phase of ETS-4@LSX structure. HR-TEM imaging revealed uniform growth of LSX over the ETS-4 surface, resulting in the formation of a continuous shell. The 2 wt% ETS-4@LSX composite demonstrated an outstanding CO<sub>2</sub>/N<sub>2</sub> equilibrium selectivity of 81.4 at 1 bar and 303 K with five and seven times higher than that of pure LSX and ETS-4, respectively. At 20 bar, the composite achieved a CO<sub>2</sub> uptake of 5.25 mmol g<sup>−1</sup> and an N<sub>2</sub> uptake of 0.50 mmol g<sup>−1</sup>. Dynamic adsorption study exhibited the 2 wt% ETS-4@LSX has 3.52 mmol g<sup>−1</sup> CO<sub>2</sub> sorption capacity and N<sub>2</sub> uptake capacity of 0.26 mmol g<sup>−1</sup>. The enhanced adsorption capacity and selectivity of ETS-4@LSX are attributed to its dual-pore structure, highlighting its potential as an effective adsorbent for CO<sub>2</sub> capture from flue gas.</div></div>","PeriodicalId":392,"journal":{"name":"Microporous and Mesoporous Materials","volume":"399 ","pages":"Article 113840"},"PeriodicalIF":4.7,"publicationDate":"2025-09-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145046951","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
Recent advances in ZSM-5 zeolite for multi-pollutant removal from water: A mini review ZSM-5沸石去除水中多种污染物的研究进展
IF 4.7 3区 材料科学
Microporous and Mesoporous Materials Pub Date : 2025-09-04 DOI: 10.1016/j.micromeso.2025.113841
Sabarish Radoor , Jasila Karayil , Hern Kim
{"title":"Recent advances in ZSM-5 zeolite for multi-pollutant removal from water: A mini review","authors":"Sabarish Radoor ,&nbsp;Jasila Karayil ,&nbsp;Hern Kim","doi":"10.1016/j.micromeso.2025.113841","DOIUrl":"10.1016/j.micromeso.2025.113841","url":null,"abstract":"<div><div>Water pollution has emerged as a major global environmental challenge, largely due to the discharge of untreated wastewater containing a wide range of contaminants such as heavy metals, dyes, pharmaceuticals, oils, and minerals into natural water bodies. To mitigate this issue, various treatment techniques have been explored, with adsorption standing out as one of the most effective and economically feasible approaches for wastewater remediation. Although numerous adsorbents have been developed for pollutant removal, the search for materials that are not only highly efficient but also reusable and environmentally friendly remains a central research focus. In this context, nanomaterials with tunable physicochemical properties offer significant potential, enabling the design of adsorbents with high selectivity and performance. Among various advanced materials, ZSM-5 a high-silica zeolite, have attracted considerable attention due to their high surface area, adjustable porosity, chemical and thermal stability, ease of functionalization, and excellent regeneration capabilities. However, comprehensive reviews detailing recent advances in ZSM-5-based adsorbents for wastewater treatment are still scarce. This review aims to fill that gap by presenting recent developments in ZSM-5 zeolite-based composites for water treatment. It focuses on various modification strategies aimed at enhancing adsorption performance and assesses their effectiveness in removing a broad spectrum of pollutants, including dyes, heavy metals, herbicides, and pharmaceuticals. By consolidating recent advancements, it offers a comprehensive overview of the emerging role of ZSM-5 composites in advancing wastewater treatment technologies.</div></div>","PeriodicalId":392,"journal":{"name":"Microporous and Mesoporous Materials","volume":"399 ","pages":"Article 113841"},"PeriodicalIF":4.7,"publicationDate":"2025-09-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145005322","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
Nanotubular chiral hyper-crosslinked polymers with ultrafast adsorption rate for enantioselective separation 具有超快吸附速率的纳米管手性超交联聚合物用于对映选择性分离
IF 4.7 3区 材料科学
Microporous and Mesoporous Materials Pub Date : 2025-09-03 DOI: 10.1016/j.micromeso.2025.113839
Rutong Zhang, Rong Lei, Xiaolei Fu, Lu Li, Yuhuan Nie, Qibin Chen
{"title":"Nanotubular chiral hyper-crosslinked polymers with ultrafast adsorption rate for enantioselective separation","authors":"Rutong Zhang,&nbsp;Rong Lei,&nbsp;Xiaolei Fu,&nbsp;Lu Li,&nbsp;Yuhuan Nie,&nbsp;Qibin Chen","doi":"10.1016/j.micromeso.2025.113839","DOIUrl":"10.1016/j.micromeso.2025.113839","url":null,"abstract":"<div><div>The separation of racemic mixtures remains a great challenge due to the similar physicochemical properties of enantiomers in achiral environment. In this work, three novel chiral hyper-crosslinked polymers (CHCPs), i.e., <em>D</em>0-CHCP, <em>D</em>1-CHCP and <em>D</em>2-CHCP, were synthesized by tuning the <em>D</em>-phenylalanine (<em>D</em>-Phe)/benzidine (BZD) ratios. Results show that all three CHCPs exhibit typically hollow cylindrical nanotube. <em>D</em>1-CHCP and <em>D</em>2-CHCP achieve ultrafast enantioselective adsorption of <em>D</em>- and <em>L</em>-Phe within 2 min, attributed to ultrathin-walled nanotubes having hierarchically porous structures. More importantly, <em>D</em>2-CHCP has a high enantiomeric excess (<em>e.e.</em>) value of up to 56.01 %, likely due to the cooperative interplay between <em>D</em>0-CHCP and the implanted chiral recognition unit, as evidenced by the control experiment that <em>D</em>0-CHCP exhibits chiral separation capability to some extent. In addition, these CHCPs display excellent recyclability and generality for chiral small-molecule drugs. These findings demonstrate that nanotubular CHCPs with ultrathin wall thickness and hierarchically porous structures possess both superior enantioselectivity and ultrafast adsorption rates, thus offering significant potential for practical applications in enantioselective adsorption separation.</div></div>","PeriodicalId":392,"journal":{"name":"Microporous and Mesoporous Materials","volume":"399 ","pages":"Article 113839"},"PeriodicalIF":4.7,"publicationDate":"2025-09-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144997339","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
Zeolite-templated carbon pellets by in situ generated binder: Deformation behavior under high-pressure CO2 adsorption 原位生成粘结剂的沸石模板碳球团:高压CO2吸附下的变形行为
IF 4.7 3区 材料科学
Microporous and Mesoporous Materials Pub Date : 2025-09-02 DOI: 10.1016/j.micromeso.2025.113837
Steven Compère , Rizwan Minhas , Isabelle Batonneau-Gener , Christelle Miqueu , Laurent Perrier , Alexander Sachse
{"title":"Zeolite-templated carbon pellets by in situ generated binder: Deformation behavior under high-pressure CO2 adsorption","authors":"Steven Compère ,&nbsp;Rizwan Minhas ,&nbsp;Isabelle Batonneau-Gener ,&nbsp;Christelle Miqueu ,&nbsp;Laurent Perrier ,&nbsp;Alexander Sachse","doi":"10.1016/j.micromeso.2025.113837","DOIUrl":"10.1016/j.micromeso.2025.113837","url":null,"abstract":"<div><div>Mechanically stable Zeolite-templated carbon pellets were synthesized by <em>in situ</em> carbon binder generated from controlled ethylene decomposition. These pellets present high CO2 adsorption capacity (16 mmol g<sup>−1</sup> at 40 bar). Under applied pressure, digital image correlation revealed a distinctive and reversible mechanical response, characterized by an initial contraction followed by material swelling.</div></div>","PeriodicalId":392,"journal":{"name":"Microporous and Mesoporous Materials","volume":"399 ","pages":"Article 113837"},"PeriodicalIF":4.7,"publicationDate":"2025-09-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144997340","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
A two-step ionothermal synthesis of MFI zeolite framework and its potential applications in adsorption and catalysis 两步离子热合成MFI分子筛骨架及其在吸附和催化方面的潜在应用
IF 4.7 3区 材料科学
Microporous and Mesoporous Materials Pub Date : 2025-08-29 DOI: 10.1016/j.micromeso.2025.113834
Tianzhao Liu , Xuemin Li , Owen J. Curnow , Jungkyu Choi , Alex C.K. Yip
{"title":"A two-step ionothermal synthesis of MFI zeolite framework and its potential applications in adsorption and catalysis","authors":"Tianzhao Liu ,&nbsp;Xuemin Li ,&nbsp;Owen J. Curnow ,&nbsp;Jungkyu Choi ,&nbsp;Alex C.K. Yip","doi":"10.1016/j.micromeso.2025.113834","DOIUrl":"10.1016/j.micromeso.2025.113834","url":null,"abstract":"<div><div>This study explores the ionothermal synthesis of MFI-type zeolites using the ionic liquid (IL) [BMIM]Br, with a focus on framework development and functional performance. By tuning synthesis parameters of temperature, Si/Al ratio, and employing a two-step heating strategy, well-crystallized ZSM-5 materials with enhanced porosity were obtained. Structural characterization by XRD, SEM, and N<sub>2</sub> physisorption confirmed that the two-step synthesis improved crystallinity and microporosity, while also promoting uniform mesopore formation and better pore accessibility. Functional assessments, including room-temperature N<sub>2</sub> adsorption, methylene blue adsorption, and catalytic toluene methylation, were conducted. Using the two-step heating treatment, the N<sub>2</sub> adsorption capacity of ionothermally synthesized zeolites increased from 2.57 cm<sup>3</sup> g<sup>−1</sup> to 3.86 cm<sup>3</sup> g<sup>−1</sup>, and methylene blue adsorption (within 6 h) improved from 61.18 mg/kg to 74.54 mg/kg. Furthermore, toluene conversion rose by 11 %, and xylene selectivity increased by 10 %, confirming the enhanced structural properties achieved through the 2-step heating treatment. Kinetic modeling indicated a shift from diffusion-limited physisorption in single-step samples to chemisorption-driven processes in two-step products. The recyclability of [BMIM]Br was demonstrated after single-step use, but structural degradation occurred following reuse from high-temperature treatments. Comparisons with TPAOH-templated hydrothermal syntheses further highlighted the superior structural direction offered by ILs. These findings advance the understanding of crystal growth in ionothermal systems and emphasize the potential of ILs in tailoring high-performance zeolite materials for catalytic and adsorption applications.</div></div>","PeriodicalId":392,"journal":{"name":"Microporous and Mesoporous Materials","volume":"398 ","pages":"Article 113834"},"PeriodicalIF":4.7,"publicationDate":"2025-08-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144916684","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
Selectivity control in the sorption of humid methanol over the porous metal organic framework MIL-120(Al) 多孔金属有机骨架MIL-120(Al)吸附湿甲醇的选择性控制
IF 4.7 3区 材料科学
Microporous and Mesoporous Materials Pub Date : 2025-08-28 DOI: 10.1016/j.micromeso.2025.113830
Meryem Saidi , Julia Duplessis-Kergomard , Olinda Gimello , Dorian Rey , Michael Paris , Thomas Devic , Fabrice Salles , Philippe Trens
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