Microporous and Mesoporous Materials最新文献_第2页

Enhanced catalytic stability of in-modified ferrierite (FER) zeolite for gas-phase carbonylation of dimethyl ether 改性铁素体（FER）分子筛对二甲醚气相羰基化催化稳定性的增强

IF 4.7 3区材料科学

Microporous and Mesoporous Materials Pub Date : 2025-09-23 DOI: 10.1016/j.micromeso.2025.113874

Dong Jae Jeong , Ji Min Kim , Chan-Hwa Chung , Jong Wook Bae

{"title":"Enhanced catalytic stability of in-modified ferrierite (FER) zeolite for gas-phase carbonylation of dimethyl ether","authors":"Dong Jae Jeong , Ji Min Kim , Chan-Hwa Chung , Jong Wook Bae","doi":"10.1016/j.micromeso.2025.113874","DOIUrl":"10.1016/j.micromeso.2025.113874","url":null,"abstract":"<div><div>For a gas-phase carbonylation reaction of dimethyl ether (DME) to methyl acetate (MA), ferrierite (FER) zeolite revealed much higher stability and selectivity to MA with insignificant coke depositions, which was mainly attributed to its planner structures and suitable pore sizes for easy mass transfer of reactants resulted in less depositions of heavier coke precursors. The effects of indium species in the FER structures were investigated by using the FER-based zeolites prepared by one-pot synthesis or simple wet impregnation method with organic structure directing agent (OSDA) of pyrrolidine and indium nitrate (III) (In(NO<sub>3</sub>)<sub>3</sub> precursor, which showed different distributions of active Brønsted acid sites (BAS) in 8-membered ring (8-MR) channels due to the adjusted FER surface properties. The catalyst deactivation rate of one-pot synthesized In(x)-FER zeolite with a small In content (In/Al molar ratio less than 0.005, denoted as In(1)-FER) was found to be slower than that of pristine FER with no indium species as well as same In/Al ratio of 0.005 prepared by wet-impregnation method (In(1)/FER) with a higher catalytic activity and MA selectivity at reaction temperature of 250 °C. Those observations demonstrated that a trace indium modification by one-pot synthesis revealed an significant positive effects on enhancing catalyst durability even under a harsh reaction condition with insignificant disintegrations of zeolite frameworks and degradation of acidic sites, which also suggested the effective strategy to other large-pore zeolites with cost-effective pretreatments with trace amount of metal oxides.</div></div>","PeriodicalId":392,"journal":{"name":"Microporous and Mesoporous Materials","volume":"399 ","pages":"Article 113874"},"PeriodicalIF":4.7,"publicationDate":"2025-09-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145217323","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

Mechanisms of the loading of ibuprofen into UiO-66s in various solvents: A combined experimental and MC simulation study 不同溶剂中布洛芬在UiO-66s中的负载机制：实验与MC模拟相结合的研究

IF 4.7 3区材料科学

Microporous and Mesoporous Materials Pub Date : 2025-09-22 DOI: 10.1016/j.micromeso.2025.113872

Kazuki Ohshima, Shuji Ohsaki, Hideya Nakamura, Satoru Watano

{"title":"Mechanisms of the loading of ibuprofen into UiO-66s in various solvents: A combined experimental and MC simulation study","authors":"Kazuki Ohshima, Shuji Ohsaki, Hideya Nakamura, Satoru Watano","doi":"10.1016/j.micromeso.2025.113872","DOIUrl":"10.1016/j.micromeso.2025.113872","url":null,"abstract":"<div><div>Metal-organic frameworks (MOFs), which exhibit high performances as drug carriers, attract increasing attention in drug delivery systems. The liquid-phase loading of drugs into MOFs is critical in determining their performances as drug carriers. Here, this study is the first to evaluate experimentally the influences of solvent polarity and the functional groups on drug-loading capacity and elucidate quantitatively mechanisms focusing on the MOF-drug-solvent interactions by grand canonical Monte Carlo (GCMC) and canonical MC (CMC) simulations. The drug-loading capacities of Universitetet i Oslo-66-X (X = NH<sub>2</sub>, H, Br, NO<sub>2</sub>) were investigated via experiments and molecular simulations. Experimentally, the drug-loading amount decreased with an increase in the solvent dipole moment and the shift of the functional groups from electron-donating to -withdrawing. These trends were attributed to variations in the MOF-drug and drug-solvent interactions. By combining the GCMC and CMC simulations, we investigated on the relationships between the energy components (|Δ<em>E</em><sub>MOF–solvent</sub>|, |<em>E</em><sub>2,MOF–drug</sub>|, and |<em>E</em><sub>2,drug–solvent</sub>|) and experimental drug-loading capacity. The balance of the intermolecular interactions between the MOF, drug, and solvent, particularly MOF-solvent interaction, was crucial in determining the drug-loading behavior. In ethanol, a higher MOF-drug interaction energy and lower drug-solvent interaction energy corresponded to a higher experimental drug loading. Overall, solvent dipole moment, electronic natures of the functional groups of the MOF, and the balance of MOF-drug-solvent interactions determined the drug-loading performance. These findings provide insights for use in the rational design of MOF-based drug carriers and contribute to a deeper understanding of adsorption behavior in the liquid phase.</div></div>","PeriodicalId":392,"journal":{"name":"Microporous and Mesoporous Materials","volume":"399 ","pages":"Article 113872"},"PeriodicalIF":4.7,"publicationDate":"2025-09-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145155012","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

Biomass-derived N/O co-doped meso-microporous carbon nanosheets for high performance zinc storage 生物质衍生的N/O共掺杂中微孔碳纳米片用于高性能锌储存

IF 4.7 3区材料科学

Microporous and Mesoporous Materials Pub Date : 2025-09-22 DOI: 10.1016/j.micromeso.2025.113870

Fei Sun , Xiuli Huang , Lulu Wang , Huan Liu , Long Kuai

{"title":"Biomass-derived N/O co-doped meso-microporous carbon nanosheets for high performance zinc storage","authors":"Fei Sun , Xiuli Huang , Lulu Wang , Huan Liu , Long Kuai","doi":"10.1016/j.micromeso.2025.113870","DOIUrl":"10.1016/j.micromeso.2025.113870","url":null,"abstract":"<div><div>The development of biomass-based porous carbon electrode material technology is of crucial significance to construct a sustainable carbon based energy material system. This work presents an N/O co-doped meso-microporous carbon nanosheets with tomato peel as a carbon source via a facile KOH activation strategy. A series of characterization results, such as TEM, XRD, Raman, XPS, etc., show that the resultant porous carbon possesses a developed hierarchical pore structure (specific surface area and pore volume of 2976.4 m<sup>2</sup> g<sup>−1</sup> and 1.63 cm<sup>3</sup> g<sup>−1</sup>, respectively), abundant graphitized microcrystals, co-doping of N and O heteroatoms and good hydrophilicity. The button-type zinc ion hybrid capacitor (ZIHSC) assembled by as-prepared porous carbon as the cathode, 2 mol L<sup>−1</sup> ZnSO<sub>4</sub> aqueous solution as the electrolyte and Zn foil as the anode exhibits a specific capacity of 181.2 mAh g<sup>−1</sup> at a current density of 0.1 A g<sup>−1</sup>. When the current density is amplified by 500 times to 50 A g<sup>−1</sup>, the specific capacity still maintains 79.9 mAh g<sup>−1</sup>, demonstrating excellent rate performance. The maximum energy density and power density are up to 144.5 Wh kg<sup>−1</sup> and 40.7 kW kg<sup>−1</sup>, respectively. This study provides technical support for the high-value utilization of low value biomass waste to prepare electrode materials.</div></div>","PeriodicalId":392,"journal":{"name":"Microporous and Mesoporous Materials","volume":"399 ","pages":"Article 113870"},"PeriodicalIF":4.7,"publicationDate":"2025-09-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145155011","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

Anodic electrodeposition of MIL-53(Al) thin films on aluminum: Synthesis, characterization, and potential for direct electric heating 在铝上阳极电沉积MIL-53（Al）薄膜：合成、表征和直接电加热的潜力

IF 4.7 3区材料科学

Microporous and Mesoporous Materials Pub Date : 2025-09-20 DOI: 10.1016/j.micromeso.2025.113860

Parsa Amin , Nima Rezaei , Eveliina Repo , Jani Sainio , Hamid Reza Godini

{"title":"Anodic electrodeposition of MIL-53(Al) thin films on aluminum: Synthesis, characterization, and potential for direct electric heating","authors":"Parsa Amin , Nima Rezaei , Eveliina Repo , Jani Sainio , Hamid Reza Godini","doi":"10.1016/j.micromeso.2025.113860","DOIUrl":"10.1016/j.micromeso.2025.113860","url":null,"abstract":"<div><div>This study presents the first successful anodic electrodeposition (AED) of MIL-53(Al) thin films on aluminum electrodes, using a novel synthesis approach involving a DMF-water solvent mixture and potassium chloride as a supporting electrolyte. The aim was to optimize the synthesis parameters to control the crystallinity, morphology, and porosity of the films, and to evaluate their potential applications in direct electric heating. The crystallinity, morphology, and porosity of the obtained films were controlled by systematically varying process parameters such as current density, electrolyte concentration, and deposition time. The study also assessed the impact of different post-synthesis washing protocols on film purity and adherence. Characterization techniques including XRD, XPS, FTIR, SEM, TEM, EDX, BET, and TGA were employed to analyze the structural and compositional properties of the synthesized thin films. The study found that higher current densities and higher electrolyte concentrations favored better crystallinity, while lower current densities favored larger crystal growth. High-performing films achieved a BET surface area of 876.2 m<sup>2</sup> <!-->g<sup>-1</sup>, indicating great potential for gas separation and adsorption applications. A methanol–water and DMF washing sequence was optimal for achieving film purity and adherence. The films exhibited thermal stability up to 500 °C. The potential for direct electric heating was demonstrated, with the electrode surface reaching 68.3 °C after 5 min at 3 A. This work establishes AED as a scalable and cost-effective method for producing customizable thin film MOFs, suitable for advanced applications such as gas storage, catalysis, and sensing. It expands the possibilities for the application of MOFs and suggests future research directions to explore other MOF systems and their practical performance in realistic conditions.</div></div>","PeriodicalId":392,"journal":{"name":"Microporous and Mesoporous Materials","volume":"400 ","pages":"Article 113860"},"PeriodicalIF":4.7,"publicationDate":"2025-09-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145263917","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

Enhanced CO2 adsorption for hydrogen purification using calcined zeolite: Process analysis and kinetic study 煅烧沸石增强二氧化碳吸附净化氢气：过程分析和动力学研究

IF 4.7 3区材料科学

Microporous and Mesoporous Materials Pub Date : 2025-09-18 DOI: 10.1016/j.micromeso.2025.113869

Rocio Maceiras , Jorge Feijoo , Victor Alfonsin , Miguel A. Alvarez-Feijoo , Luis Azofra

{"title":"Enhanced CO2 adsorption for hydrogen purification using calcined zeolite: Process analysis and kinetic study","authors":"Rocio Maceiras , Jorge Feijoo , Victor Alfonsin , Miguel A. Alvarez-Feijoo , Luis Azofra","doi":"10.1016/j.micromeso.2025.113869","DOIUrl":"10.1016/j.micromeso.2025.113869","url":null,"abstract":"<div><div>This study investigates the dynamics of CO<sub>2</sub> adsorption on calcined zeolite at different temperatures (350 °C and 600 °C) focusing on adsorption capacity and kinetics under varying pressures and flow rates to assess its potential for industrial CO<sub>2</sub> capture. Results show that calcination of zeolite up to 600 °C allows an increase in CO<sub>2</sub> adsorption by increasing its porosity and mesopore content and by reducing the water content. The CO<sub>2</sub> removal efficiency exceeds 90 %, using calcined zeolite at 600 °C, at low flow rates (0.5 L/min) and pressures higher than 3 bar. Freundlich, Sips, and Toth isotherm models described the adsorption process, indicating both monolayer and multilayer adsorption, with heterogeneous surface interactions evident. Kinetic analyses using pseudo-first-order (PFO), pseudo-second-order (PSO), and Avrami models highlighted the complexity of the adsorption mechanism. The Avrami model exhibited superior accuracy, effectively capturing multi-step and heterogeneous surface interactions. Additionally, diffusion models such as Boyd, interparticle, and Weber-Morris revealed a mixed control mechanism, with contributions from boundary layer diffusion, surface adsorption, and intraparticle diffusion.</div></div>","PeriodicalId":392,"journal":{"name":"Microporous and Mesoporous Materials","volume":"399 ","pages":"Article 113869"},"PeriodicalIF":4.7,"publicationDate":"2025-09-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145217325","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

Adjusting seed solution-assisted synthesis of hierarchical ZSM-5 zeolite to facilitate efficient tetralin cracking 调节种子溶液辅助合成分级ZSM-5沸石以促进四氢化萘的高效裂解

IF 4.7 3区材料科学

Microporous and Mesoporous Materials Pub Date : 2025-09-17 DOI: 10.1016/j.micromeso.2025.113866

Zhang Yanting , Ding Yunlong , Guo Yunya, Wang Wenfeng, Li Xiaofeng, Dou Tao

{"title":"Adjusting seed solution-assisted synthesis of hierarchical ZSM-5 zeolite to facilitate efficient tetralin cracking","authors":"Zhang Yanting , Ding Yunlong , Guo Yunya, Wang Wenfeng, Li Xiaofeng, Dou Tao","doi":"10.1016/j.micromeso.2025.113866","DOIUrl":"10.1016/j.micromeso.2025.113866","url":null,"abstract":"<div><div>The development of mesoporogen-free synthetic routes for hierarchical ZSM-5 zeolites is critical to advancing their application in diffusion-constrained catalytic processes such as heavy oil cracking. Here, we develop a mesoporogen-free strategy through synergistic control of seed solution temperature (70–170 °C) and addition amount (0.8–50 wt%). The synthesized zeolites were characterized using techniques such as X-ray Diffraction (XRD), Scanning electron microscope (SEM), Transmission electron microscopy (TEM), N<sub>2</sub> adsorption-desorption, ammonia temperature-programmed desorption (NH<sub>3</sub>-TPD), and pyridine-infrared (Py-IR). The results show that the sample is rich in mesopores and has well-preserved microporosity. Control experiments under TPAOH conditions equivalent to the seed solution addition amounts and with room-temperature-dried seed solids equivalent to the seed solution were conducted to highlight the critical role of seed solutions. Notably, seed solutions stored for three months retained their effectiveness in synthesizing phase-pure ZSM-5 zeolites, demonstrating exceptional stability. In tetralin (heavy oil model) cracking tests, the optimized zeolite (HZ-T100-A50) achieved 90 % conversion within 2 h, which is 20 % higher than HZ-T100-A0.8, attributed to enhanced reactant accessibility. This study not only provides an eco-friendly method for synthesizing hierarchical ZSM-5 zeolites without mesoporous templates but also deepens the understanding of seed solution impacts, offering an important basis for optimizing zeolites synthesis and application.</div></div>","PeriodicalId":392,"journal":{"name":"Microporous and Mesoporous Materials","volume":"399 ","pages":"Article 113866"},"PeriodicalIF":4.7,"publicationDate":"2025-09-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145119143","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 multinuclear approach to characterising disordered (Al,Sc)-MIL-53 using solid-state NMR spectroscopy 使用固态核磁共振光谱表征无序(Al,Sc)-MIL-53的多核方法

IF 4.7 3区材料科学

Microporous and Mesoporous Materials Pub Date : 2025-09-16 DOI: 10.1016/j.micromeso.2025.113868

Emma A.L. Borthwick, Zachary H. Davis, Sharon E. Ashbrook

{"title":"A multinuclear approach to characterising disordered (Al,Sc)-MIL-53 using solid-state NMR spectroscopy","authors":"Emma A.L. Borthwick, Zachary H. Davis, Sharon E. Ashbrook","doi":"10.1016/j.micromeso.2025.113868","DOIUrl":"10.1016/j.micromeso.2025.113868","url":null,"abstract":"<div><div>A series of new mixed-metal (Al,Sc)-MIL-53 MOFs has been synthesised solvothermally using DMF. The materials have been characterised using a combination of solid-state NMR spectroscopy, X-ray diffraction, electron microscopy, and energy dispersive X-ray spectroscopy. The breathing behaviour was followed using <sup>13</sup>C MAS NMR spectroscopy and showed that the mixed-metal MOFs exhibited different pore forms to the two end members. The cation distribution in the framework was investigated using <sup>17</sup>O NMR spectroscopy. The low natural abundance of <sup>17</sup>O (0.038 %) requires isotopic enrichment for spectra to be acquired on a reasonable timescale, but the high cost of enriched reagents necessitates a cost-effective and atom-efficient approach. Materials were enriched using post-synthetic steaming and the cation distribution in the enriched frameworks was shown to be close to random. Evidence for framework degradation and the formation of impurities (an alumina-based material and the small-pore MOF Sc<sub>2</sub>(BDC)<sub>3</sub>) upon any heating (i.e., during calcination, dehydration or enrichment) was provided from <sup>27</sup>Al and <sup>45</sup>Sc NMR spectroscopy, leading to the enriched mixed-metal frameworks having very similar compositions (with 70–77 % Al present). Further work would be required to overcome some of the synthetic challenges encountered, but the possibility of tailoring the breathing response of a mixed-metal MOF in the presence of a guest molecule or with changes in external conditions offers interesting possibilities for the future.</div></div>","PeriodicalId":392,"journal":{"name":"Microporous and Mesoporous Materials","volume":"399 ","pages":"Article 113868"},"PeriodicalIF":4.7,"publicationDate":"2025-09-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145106261","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 and performance of zeolite microspheres for strontium adsorption, regeneration, and immobilization 沸石微球吸附、再生及固定化锶的合成及性能研究

IF 4.7 3区材料科学

Microporous and Mesoporous Materials Pub Date : 2025-09-16 DOI: 10.1016/j.micromeso.2025.113857

Zi Chen, Haihua Liu, Xiaowu Ping, Mingxuan Jiang, Xiangao Hu, Weichuan Xu, Xianggang Li, Ping Mao, Jinlong Jiang

{"title":"Synthesis and performance of zeolite microspheres for strontium adsorption, regeneration, and immobilization","authors":"Zi Chen, Haihua Liu, Xiaowu Ping, Mingxuan Jiang, Xiangao Hu, Weichuan Xu, Xianggang Li, Ping Mao, Jinlong Jiang","doi":"10.1016/j.micromeso.2025.113857","DOIUrl":"10.1016/j.micromeso.2025.113857","url":null,"abstract":"<div><div>In this study, zeolite microspheres (ZMSs) with a highly porous three-dimensional (3D) network structure exhibiting efficient Sr<sup>2+</sup> adsorption properties were successfully prepared. The synthesis of these ZMSs involved the use of zeolite 4A (Z4A) derived from kaolinite, with the assembly process facilitated by the crosslinking interaction between sodium alginate (SA) and Ca<sup>2+</sup>. Zeolite was immobilized in polymers, which facilitated the adsorption and desorption operations of the adsorbent. Static adsorption results indicated that a favorable adsorption performance was achieved within the pH range of 3–8. The Langmuir isotherm fitting results revealed that the maximum saturated adsorption capacity was determined to be 51.6 mg/g. In addition, the adsorption capacity could reach 89.5 % of the equilibrium adsorption capacity within 1 h, demonstrating a relatively fast adsorption kinetics. Column tests demonstrated the effective performance of the material, with 668 mL of an effluent solution containing 100 mg/L Sr<sup>2+</sup> reaching a 5 % breakthrough point. The recovery of the adsorbent can reach 58.73 % after five recycles when 0.02 M EDTA-2Na is used as the eluent. The leaching ratio of ZMSs ceramics sintered at 1100 °C in different leachates was found to follow the order: 0.1 M HCl >0.1 M NaOH >0.1 M NaCl > H<sub>2</sub>O. These findings showed ZMSs had high adsorption efficiency, convenient operability, recyclability and stability, serving as a novel adsorbent for efficient Sr<sup>2+</sup> removal and disposal in radioactive wastewater, suitable for large-scale low-level treatment.</div></div>","PeriodicalId":392,"journal":{"name":"Microporous and Mesoporous Materials","volume":"399 ","pages":"Article 113857"},"PeriodicalIF":4.7,"publicationDate":"2025-09-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145119142","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

Post-modification of zirconium based metal-organic frameworks for efficient and selective gold adsorption in wastewater 后改性锆基金属-有机骨架对废水中金的高效选择性吸附

IF 4.7 3区材料科学

Microporous and Mesoporous Materials Pub Date : 2025-09-15 DOI: 10.1016/j.micromeso.2025.113867

Zhuo Wang , Rulin Li , Donghao Jiao , Qijun Cheng , Zitong Yang , Jiayi Xu , Chenhuinan Wei

{"title":"Post-modification of zirconium based metal-organic frameworks for efficient and selective gold adsorption in wastewater","authors":"Zhuo Wang , Rulin Li , Donghao Jiao , Qijun Cheng , Zitong Yang , Jiayi Xu , Chenhuinan Wei","doi":"10.1016/j.micromeso.2025.113867","DOIUrl":"10.1016/j.micromeso.2025.113867","url":null,"abstract":"<div><div>Gold, with extremely high economic benefits, has garnered great attention in the field of recovery. However, efficiently and selectively recovering Au(III) from wastewater solutions presents a significant challenge. In this work, we synthesized a novel metal-organic frameworks (MOFs), namely UiO-66-TBTP (organic compound TBTP was synthesized using 5-tert-butyl-2-hydroxybenzaldehyde, thiosemicarbazide and hydroxyl p-bendibenzaldehyde), through post-modification of UiO-66-NH<sub>2</sub>. This designed UiO-66-TBTP shows an ultrahigh adsorption capacity of 718.37 mg/g for Au(III) under the conditions of pH = 5 and 318 K. Experiments and calculation results manifest that the adsorption exhibits a spontaneous endothermic behavior, following second-order kinetics and the Langmuir isotherm model, which suggests that a single-layer chemical adsorption occurs on the adsorption surface. Competitive adsorption and repeated experiments show that UiO-66-TBTP has considerable selectivity and reusability. The characterization and calculation results elucidate that the electrostatic and chelation interactions exist between N and S functional groups on UiO-66-TBTP surface and Au(III), and the sulfur containing functional groups can serve as a significant site in the adsorption process. This work offers promising guidance for the synthesis of functional MOFs, specifically designed to serve as efficient and selective adsorbents for Au(III) recovery from wastewater.</div></div>","PeriodicalId":392,"journal":{"name":"Microporous and Mesoporous Materials","volume":"399 ","pages":"Article 113867"},"PeriodicalIF":4.7,"publicationDate":"2025-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145106260","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

Pore size control of ordered mesoporous carbon by amino acid addition in solvent-free soft-template preparation 氨基酸加入对无溶剂软模板制备中有序介孔碳孔径的控制

IF 4.7 3区材料科学

Microporous and Mesoporous Materials Pub Date : 2025-09-15 DOI: 10.1016/j.micromeso.2025.113831

Xinyu Li, Xinran Yang, Zahratul Amanah, Koji Miyake, Yoshiaki Uchida, Norikazu Nishiyama

{"title":"Pore size control of ordered mesoporous carbon by amino acid addition in solvent-free soft-template preparation","authors":"Xinyu Li, Xinran Yang, Zahratul Amanah, Koji Miyake, Yoshiaki Uchida, Norikazu Nishiyama","doi":"10.1016/j.micromeso.2025.113831","DOIUrl":"10.1016/j.micromeso.2025.113831","url":null,"abstract":"<div><div>The solvent-free soft template method is expected to be a promising scale-up preparation method for ordered mesoporous carbons because of its simple procedure. In order to expand the application possibilities of ordered mesoporous carbons prepared by solvent-free soft template method, we have developed the controlling method for pore size and structure by tuning the packing parameter of self-assembled carbon precursor composites. The self-assembled composites are composed of hydrophobic cores of triblock copolymers and hydrophilic shells of resorcinol interacted with hydrophilic tails of triblock copolymers. In this study, L-glutamic acid and L-cysteine with different hydrophilicity/hydrophobicity were added to the precursors. The addition of hydrophobic L-cysteine increased the packing parameter (the <em>g</em> value), which transformed the ordered structure from 1D channel-like pore structure to wormhole-like 3D pore structure. The mesopore size was decreased because the L-cysteine in the hydrophobic core is carbonized and incorporated into the pore wall. On the other hand, the addition of hydrophilic L-glutamic acid reduced the packing parameter (the <em>g</em> value) and the core-shell structure was no longer maintained. As a result, aggregates of uniform nanoparticles were formed. The size of mesopores formed between nanoparticles is larger than the above ordered carbons. The addition of amino acids appropriately increased the nitrogen content of carbon materials. When used as electrodes, mesoporous N-containing carbon with a larger pore size and 1D structure exhibited high double-layer capacitor performance. In summary, this study proposed a new method for controlling the pore size of ordered mesoporous carbons in solvent-free soft-template method.</div></div>","PeriodicalId":392,"journal":{"name":"Microporous and Mesoporous Materials","volume":"400 ","pages":"Article 113831"},"PeriodicalIF":4.7,"publicationDate":"2025-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145219322","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}

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