Microporous and Mesoporous Materials最新文献_第3页

Tunable synthesis of C-SiOxCy monoliths C-SiOxCy单体的可调合成

IF 4.7 3区材料科学

Microporous and Mesoporous Materials Pub Date : 2025-09-15 DOI: 10.1016/j.micromeso.2025.113863

Julia Wagner , Julien Jaxel , Katia Guérin , Sandrine Berthon-Fabry

{"title":"Tunable synthesis of C-SiOxCy monoliths","authors":"Julia Wagner , Julien Jaxel , Katia Guérin , Sandrine Berthon-Fabry","doi":"10.1016/j.micromeso.2025.113863","DOIUrl":"10.1016/j.micromeso.2025.113863","url":null,"abstract":"<div><div>This study establishes key structure–property relationships, offering valuable guidelines for designing porous monolithic C-SiO<sub>x</sub>C<sub>y</sub> materials for energy storage sensors, and electrocatalysis. We report a tunable sol-gel synthesis of monolithic C-SiO<sub>x</sub>C<sub>y</sub> composites with tailored physicochemical and electrical properties. By combining resorcinol, formaldehyde, TEOS, APTES, and kapok fibers, twenty-one formulations were prepared while systematically varying five synthesis parameters: TEOS-to-resorcinol molar ratio, sol concentration, sol pH, drying method, and pyrolysis temperature. The resulting composites exhibited silica contents ranging from 19 to 80 wt%, bulk densities from 0.10 to 1.11 g/cm<sup>3</sup>, specific surface areas up to 562 m<sup>2</sup>/g, and electrical conductivities reaching 8 S/cm. Structural analyses (SEM, <sup>29</sup>Si NMR, N<sub>2</sub> adsorption) revealed that the materials consist of integrated hybrid networks rather than separate carbon and silica domains. Factor analyses highlighted the dominant roles of TEOS/R on composition and porosity, supercritical drying on texture, and pyrolysis temperature on conductivity. Acidic conditions and sol dilution promoted high surface areas and pore volumes, while alkaline pH and carbon-rich environments enhanced electrical transport.</div></div>","PeriodicalId":392,"journal":{"name":"Microporous and Mesoporous Materials","volume":"399 ","pages":"Article 113863"},"PeriodicalIF":4.7,"publicationDate":"2025-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145106193","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

Intermediate layer engineering with composite sols for enhanced separation efficiency and hydrothermal stability of 1,2-bis(triethoxysilyl)methane-derived hybrid silica membranes 复合溶胶中间层工程研究1,2-双（三乙氧基硅基）甲烷衍生杂化二氧化硅膜的分离效率和水热稳定性

IF 4.7 3区材料科学

Microporous and Mesoporous Materials Pub Date : 2025-09-15 DOI: 10.1016/j.micromeso.2025.113865

Rongxue Li , Hongdan Wu , Zhihui Zhou , Xianyuan Fan , Jia Peng

{"title":"Intermediate layer engineering with composite sols for enhanced separation efficiency and hydrothermal stability of 1,2-bis(triethoxysilyl)methane-derived hybrid silica membranes","authors":"Rongxue Li , Hongdan Wu , Zhihui Zhou , Xianyuan Fan , Jia Peng","doi":"10.1016/j.micromeso.2025.113865","DOIUrl":"10.1016/j.micromeso.2025.113865","url":null,"abstract":"<div><div>Organic-inorganic hybrid silica membranes, which combine the thermal stability of inorganic frameworks with the flexibility of organic groups, are promising for pervaporation applications. The intermediate layer, a crucial structural component bridging the particulate support and dense separation layers, plays a decisive role not only in governing the film-forming quality but also in determining interfacial compatibility and structural integrity. In this study, 1,2-bis(triethoxysilyl)methane (BTESM) was employed as the precursor to fabricate multilayer SiO<sub>2</sub> hybrid membranes via the sol-gel method, with TiO<sub>2</sub>-SiO<sub>2</sub>, TiO<sub>2</sub>-ZrO<sub>2</sub>, and SiO<sub>2</sub>-ZrO<sub>2</sub> composite sols introduced as intermediate layers. The effects on membrane microstructure, pervaporation performance, and hydrothermal stability were systematically investigated. Among the three systems, the TiO<sub>2</sub>-SiO<sub>2</sub> derived membrane exhibited the highest performance, achieving a permeation flux of 0.88 kg m<sup>−2</sup> h<sup>−1</sup> and a separation factor of 1960 under optimized conditions of six coating cycles, 0.5 wt% sol concentration, and 550 °C calcination. It also showed excellent structural integrity during both hydrothermal treatment and long-term testing. Mechanistic analysis revealed that the formation of Ti-O-Si bridging bonds effectively inhibited grain growth and retarded the amorphous-to-crystalline transition, thereby stabilizing the intermediate layer structure and enhancing membrane robustness. This study establishes a structure-performance relationship for intermediate layer design and offers practical guidance for the development of durable, high-performance hybrid membranes in industrial pervaporation processes.</div></div>","PeriodicalId":392,"journal":{"name":"Microporous and Mesoporous Materials","volume":"399 ","pages":"Article 113865"},"PeriodicalIF":4.7,"publicationDate":"2025-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145106192","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

Faujasite zeolite synthesized by alkali fusion-hydrothermal method from molybdenum tailings for methylene blue adsorption 以钼尾矿为原料，碱熔水热法制备Faujasite沸石吸附亚甲基蓝

IF 4.7 3区材料科学

Microporous and Mesoporous Materials Pub Date : 2025-09-15 DOI: 10.1016/j.micromeso.2025.113864

Kuizhou Dou , Yirui Song , Mei Tao , Shucheng Liu , Caixia Li , Qingguo Dong , Jiajun Chen , Mingliang Xie , Qianyu Sun

{"title":"Faujasite zeolite synthesized by alkali fusion-hydrothermal method from molybdenum tailings for methylene blue adsorption","authors":"Kuizhou Dou , Yirui Song , Mei Tao , Shucheng Liu , Caixia Li , Qingguo Dong , Jiajun Chen , Mingliang Xie , Qianyu Sun","doi":"10.1016/j.micromeso.2025.113864","DOIUrl":"10.1016/j.micromeso.2025.113864","url":null,"abstract":"<div><div>This study successfully prepared a faujasite-type zeolite from molybdenum tailings through alkali fusion and subsequent hydrothermal synthesis. Adsorption experiments on methylene blue (MB) by synthesized zeolite material. The synthesized zeolite exhibited a specific surface area of 477.556 m<sup>2</sup> g<sup>−1</sup>, a total pore volume of 0.2793 cm<sup>3</sup> g<sup>−1</sup>, and an average pore diameter of 2.34 nm. Surface characterization revealed numerous active sites, such as hydroxyl groups. These features were confirmed through XRD, FTIR, SEM, and XPS. Under optimized conditions (solid–liquid ratio of 2 g L<sup>−1</sup>, pH = 6, initial MB concentration of 100 mg L<sup>−1</sup> at 25 °C), the synthesized zeolite achieved a removal efficiency of 92.23 % for MB, with adsorption capacity reaching 45.23 mg g<sup>−1</sup>. A pseudo-second-order rate equation (R<sup>2</sup> > 0.998) defined the adsorption process, suggesting chemisorption is the rate-limiting phase. The Freundlich isotherm model suited equilibrium data better (R<sup>2</sup> > 0.971), indicating that multilayer coverage on a heterogeneous surface drove adsorption. Further mechanistic insights suggested that MB uptake was driven by a combination of surface adsorption, electrostatic attraction and hydrogen bonding. These findings provide both theoretical guidance and technological support for the valorization of molybdenum tailings and their application in the development of low-cost wastewater treatment strategies.</div></div>","PeriodicalId":392,"journal":{"name":"Microporous and Mesoporous Materials","volume":"399 ","pages":"Article 113864"},"PeriodicalIF":4.7,"publicationDate":"2025-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145106259","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

Hierarchically ordered pore metal-organic framework membrane fabricated via soft spray 用软喷法制备的有序孔金属有机骨架膜

IF 4.7 3区材料科学

Microporous and Mesoporous Materials Pub Date : 2025-09-13 DOI: 10.1016/j.micromeso.2025.113861

Junyi Chen , Hongchao Qi , Yan Guo , Hang Xu , Fuqiang Fan , Yu Fu , Weiliang Tian

引用次数: 0

Triphenylamine functionalized metal-organic framework NH2-MIL-101 (Fe) for efficient removal of roxarsone from wastewater 三苯胺功能化金属-有机骨架NH2-MIL-101 （Fe）高效去除废水中的罗沙胂

IF 4.7 3区材料科学

Microporous and Mesoporous Materials Pub Date : 2025-09-13 DOI: 10.1016/j.micromeso.2025.113862

Jian Luo, Yonghui Lin, Yanfeng Liu, Siliang Wang, Yiduo Chen, Xudong Tian, Weiting Yang, Zhongmin Su

{"title":"Triphenylamine functionalized metal-organic framework NH2-MIL-101 (Fe) for efficient removal of roxarsone from wastewater","authors":"Jian Luo, Yonghui Lin, Yanfeng Liu, Siliang Wang, Yiduo Chen, Xudong Tian, Weiting Yang, Zhongmin Su","doi":"10.1016/j.micromeso.2025.113862","DOIUrl":"10.1016/j.micromeso.2025.113862","url":null,"abstract":"<div><div>Roxarsone (3-nitro-4-hydroxyphenylarsenic acid, ROX) is easily converted into highly toxic inorganic arsenic compounds, therefore, the development of highly efficient adsorbents for the removal of ROX from wastewater is necessary but remains challenging. In this study, NH<sub>2</sub>-MIL-101 (Fe) was synthesised and modified with TPA-CHO (4-(N, N-diphenylamine) benzaldehyde) to obtain TPA-MIL-101(Fe) with triphenylamine functionalised groups. The modified TPA-MIL-101(Fe) exhibits the very high adsorption capacity (728.2 mg g<sup>−1</sup>) and fast adsorption equilibrium (2 h). The TPA-MIL-101(Fe) showed excellent selectivity, and the adsorption efficiency hardly decreased in the presence of competing ions (Cl<sup>−</sup>, NO<sub>3</sub><sup>−</sup>, SO<sub>4</sub><sup>2−</sup>). The TPA-MIL-101(Fe) showed good adsorption performance for ROX at pH 3–13, with the best performance at pH = 9. In addition, TPA-MIL-101(Fe) was able to remove trace amounts of ROX from actual water samples (<5 mg L<sup>−1</sup>) with an efficiency of 99.46 %, and the remaining ROX content meets the international drinking water standards of the World Health Organization (29 μg L<sup>−1</sup>). The mechanism studies have shown that the Fe-O-As coordination and the π-π stacking interaction between TPA-MIL-101(Fe) and ROX greatly enhance its adsorption performance. In conclusion, this work provides a promising material for effective removal of ROX from the environmental water.</div></div>","PeriodicalId":392,"journal":{"name":"Microporous and Mesoporous Materials","volume":"399 ","pages":"Article 113862"},"PeriodicalIF":4.7,"publicationDate":"2025-09-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145106194","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

Effect of pore morphology on adsorption of methylene blue and phenol in micro-mesoporous carbons 微介孔碳对亚甲基蓝和苯酚吸附性能的影响

IF 4.7 3区材料科学

Microporous and Mesoporous Materials Pub Date : 2025-09-13 DOI: 10.1016/j.micromeso.2025.113855

Petra Bulavová, Petr Buchta, Václav Slovák

{"title":"Effect of pore morphology on adsorption of methylene blue and phenol in micro-mesoporous carbons","authors":"Petra Bulavová, Petr Buchta, Václav Slovák","doi":"10.1016/j.micromeso.2025.113855","DOIUrl":"10.1016/j.micromeso.2025.113855","url":null,"abstract":"<div><div>Micro–mesoporous carbonaceous adsorbents were synthesized via polycondensation of resorcinol and furfural using soft-templating approach. Four templated samples were prepared with non-ionic surfactants Pluronic F-127 and P-123; a non-templated material was also synthesized for comparison. TEM showed that three templated carbons exhibited wormlike mesopores, while one had an ordered mesoporous structure. Nitrogen sorption and thermoporometry analyses revealed mesopore volumes from 0.19 to 0.40 cm<sup>3</sup> g<sup>−1</sup> and micropore volumes from 0.19 to 0.27 cm<sup>3</sup> g<sup>−1</sup>. Higher template amount (5 g) resulted in broader mesopore distributions (up ∼15–20 nm) than lower amount (2 g, up ∼10 nm). All templated samples exhibited enhanced microporosity relative to non-templated reference, attributed to improved mesopore accessibility. Adsorption kinetics of phenol and methylene blue from aqueous solutions were evaluated using four kinetic models. The pseudo-second-order model provided the best fit based on Akaike information criterion. Mesopore arrangement (ordered vs. wormlike) significantly influenced adsorption behaviour. For phenol, adsorption capacities were similar across all templated samples, reflecting its preferential uptake in micropores, yet the ordered mesoporous carbon exhibited a notably lower rate constant, suggesting hindered diffusion due to less interconnected mesopores. For methylene blue, which preferentially adsorbs in mesopores and larger micropores, reduced adsorbed amount was observed in the ordered sample. This suppression correlated with limited water intrusion into mesopores, as confirmed by TPM, emphasizing the importance of surface wettability. These results demonstrate that both mesopore morphology and hydrophilicity, in addition to pore size, play a crucial role in governing adsorption performance of carbon materials in aqueous media.</div></div>","PeriodicalId":392,"journal":{"name":"Microporous and Mesoporous Materials","volume":"400 ","pages":"Article 113855"},"PeriodicalIF":4.7,"publicationDate":"2025-09-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145219321","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

Thermal desorption kinetics and framework evolution in VOC-loaded FAU-Type zeolite Y: An in situ XRPD study 负载voc的fau型Y型沸石的热解吸动力学和骨架演化：原位XRPD研究

IF 4.7 3区材料科学

Microporous and Mesoporous Materials Pub Date : 2025-09-11 DOI: 10.1016/j.micromeso.2025.113859

Maura Mancinelli , Matteo Ardit , Luisa Pasti , Tatiana Chenet , Carlotta Giacobbe , Annalisa Martucci

{"title":"Thermal desorption kinetics and framework evolution in VOC-loaded FAU-Type zeolite Y: An in situ XRPD study","authors":"Maura Mancinelli , Matteo Ardit , Luisa Pasti , Tatiana Chenet , Carlotta Giacobbe , Annalisa Martucci","doi":"10.1016/j.micromeso.2025.113859","DOIUrl":"10.1016/j.micromeso.2025.113859","url":null,"abstract":"<div><div>This study reports a detailed investigation of the desorption kinetics of toluene and chlorobenzene from a high-silica FAU-type Y zeolite (SiO<sub>2</sub>/Al<sub>2</sub>O<sub>3</sub> ≈ 200) by <em>in situ</em> synchrotron X-ray powder diffraction under dynamic (298–973 K) and isothermal (443–523 K) conditions. Dynamic XRPD data reveal a progressive unit cell contraction (∼0.4–0.5 %) and an increase in the intensity of the (111) reflection, consistent with the gradual release of VOCs and pore evacuation. Activation energies were calculated using Avrami–Erofeev and Arcenegui–Troya kinetic models, the latter incorporating non-Arrhenius behavior attributed to cooperative effects. The higher activation energy observed for chlorobenzene (28.13 ± 3.93 kJ/mol) compared to toluene (17.31 ± 0.66 kJ/mol) is attributed to stronger quadrupole–cation interactions, reduced rotational entropy, and cooperative desorption barriers arising from molecular crowding. These findings provide fundamental structural insights into host–guest interactions and framework stability during VOC desorption, informing the design of regenerable zeolite adsorbents for environmental applications.</div></div>","PeriodicalId":392,"journal":{"name":"Microporous and Mesoporous Materials","volume":"399 ","pages":"Article 113859"},"PeriodicalIF":4.7,"publicationDate":"2025-09-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145057204","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

Synchronous zeolite shaping and pore-size regulation for effective selective adsorption of thiophene from crude benzene 同步分子筛成型和孔径调节对粗苯中噻吩的有效选择性吸附

IF 4.7 3区材料科学

Microporous and Mesoporous Materials Pub Date : 2025-09-11 DOI: 10.1016/j.micromeso.2025.113856

Kaixian Huang , Zhi Zhang , Yang Yue , Jia Zhang , Guangren Qian

{"title":"Synchronous zeolite shaping and pore-size regulation for effective selective adsorption of thiophene from crude benzene","authors":"Kaixian Huang , Zhi Zhang , Yang Yue , Jia Zhang , Guangren Qian","doi":"10.1016/j.micromeso.2025.113856","DOIUrl":"10.1016/j.micromeso.2025.113856","url":null,"abstract":"<div><div>Shaping technology using the binder is critical to the application of the powdered material. However, the binder wrapping and blockage usually decrease the performance of the powder material. This work thus investigates a method forming a binder-free monolith Y zeolite by citric-acid treatment. The powdered and monolith zeolites are compared in selective adsorption of thiophene from crude benzene. Ce modification results in the best adsorption capacity of 13.5 mg g<sup>−1</sup> for thiophene among all transition-metal modifications. After the shaping, the adsorption capacity is even increased to 14.9 mg g<sup>−1</sup>. Moreover, its adsorption selectivity of thiophene from benzene is bigger than 84 % at 30–60 °C. In the cyclic adsorption for three turns, the capacity maintains a stable value between 14.6 and 14.9 mg g<sup>−1</sup>. According to the mechanism investigation, pore sizes of the powdered and monolith zeolites are concentrated at 0.48–0.8 nm and 0.6 nm, respectively. The size of the monolith zeolite allows diffusion in of thiophene (0.53 nm) but excludes the toluene (0.65 × 0.68 nm), which results in the high selectivity. Thiophene is both adsorbed by Brönsted acidic sites and Ce(OH)<sub>2</sub><sup>2+</sup> sites. The main result of this work thus puts forward a useful route for the zeolite shaping.</div></div>","PeriodicalId":392,"journal":{"name":"Microporous and Mesoporous Materials","volume":"399 ","pages":"Article 113856"},"PeriodicalIF":4.7,"publicationDate":"2025-09-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145046949","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 elemental mercury removal using modified natural zeolites: a study on activation methods and adsorption stability 改性天然沸石增强单质汞去除：活化方法及吸附稳定性研究

IF 4.7 3区材料科学

Microporous and Mesoporous Materials Pub Date : 2025-09-11 DOI: 10.1016/j.micromeso.2025.113858

Piotr Kunecki , Dorota Czarna-Juszkiewicz , Paweł Gara , Magdalena Wdowin

{"title":"Enhanced elemental mercury removal using modified natural zeolites: a study on activation methods and adsorption stability","authors":"Piotr Kunecki , Dorota Czarna-Juszkiewicz , Paweł Gara , Magdalena Wdowin","doi":"10.1016/j.micromeso.2025.113858","DOIUrl":"10.1016/j.micromeso.2025.113858","url":null,"abstract":"<div><div>The removal of elemental mercury (Hg<sup>0</sup>) from industrial gas streams remains a pressing environmental challenge. This study investigates the performance of natural zeolites modified via two activation methods – spraying and ion exchange – to enhance mercury adsorption efficiency. Samples (B1–B12, C1–C12) were functionalized using silver and iron precursors in nitrate and chloride forms. Their physicochemical properties were analysed using XRD, SEM-EDS mapping, and FTIR. Mercury removal efficiency was evaluated over six consecutive adsorption cycles using a custom-built laboratory scale measurement system. Twelve months after exposure, long-term mercury retention and potential re-emission were assessed with a direct mercury analyser. Results show that ion exchange, particularly with silver nitrate (C1–C3) and iron nitrate (C4–C6), led to more homogeneous precursor incorporation and higher Hg<sup>0</sup> retention. The C6 sample exhibited the best overall performance. In contrast, the spraying method resulted in less uniform precursor distribution, although silver chloride-modified samples (B10–B12) also demonstrated high adsorption capacity. Nitrate-based precursors outperformed chloride counterparts in both efficiency and long-term stability. No direct relationship was found between zeolite grain size and mercury removal efficiency, indicating that internal porosity and precursor diffusion are more influential than particle dimensions. These findings highlight the critical role of activation strategy and precursor chemistry in optimizing zeolite-based sorbents. Ion exchange with nitrate precursors appears most promising for effective, stable mercury capture in industrial applications.</div></div>","PeriodicalId":392,"journal":{"name":"Microporous and Mesoporous Materials","volume":"399 ","pages":"Article 113858"},"PeriodicalIF":4.7,"publicationDate":"2025-09-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145046953","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 novel anthracene-scaffolded triazine-based porous organic polymer for efficient capture of iodine in gaseous and liquid phases 一种新型的蒽基支架三嗪基多孔有机聚合物，用于气相和液相中碘的有效捕获

IF 4.7 3区材料科学

Microporous and Mesoporous Materials Pub Date : 2025-09-11 DOI: 10.1016/j.micromeso.2025.113836

Jia Luo , Ao Zhou , Lesen Ma , Xiangfei Kong , Zhenguang Hu , Fuxin Zhong , Peipei Zhang , Haijun Tan

{"title":"A novel anthracene-scaffolded triazine-based porous organic polymer for efficient capture of iodine in gaseous and liquid phases","authors":"Jia Luo , Ao Zhou , Lesen Ma , Xiangfei Kong , Zhenguang Hu , Fuxin Zhong , Peipei Zhang , Haijun Tan","doi":"10.1016/j.micromeso.2025.113836","DOIUrl":"10.1016/j.micromeso.2025.113836","url":null,"abstract":"<div><div>The uncontrolled release of gaseous iodine species (I<sub>2</sub>, organic iodides) under nuclear accident conditions is increasingly causing severe regional ecological disasters, creating an urgent need for the development of highly efficient iodine adsorbents for nuclear waste treatment. In this study, we designed and synthesized an anthracene-scaffolded triazine-based porous organic polymer (POP-W) via Friedel-Crafts alkylation reaction. This polymer exhibits a straightforward synthesis, outstanding environmental stability, and distinctive pore structure characteristics. Nitrogen sorption characterization revealed that POP-W possesses mesoporous characteristics, exhibiting a Brunauer-Emmett-Teller (BET) specific surface area of 307.96 m<sup>2</sup> g<sup>−1</sup>, a total pore volume of 0.174 cm<sup>3</sup> g<sup>−1</sup>, and a Barrett-Joyner-Halenda (BJH) adsorption average pore diameter of 2.95 nm. In iodine vapor adsorption tests at 75 °C, POP-W achieved a maximum uptake capacity of 4.29 g g<sup>−1</sup>. Furthermore, Langmuir model fitting indicated a Theoretical maximum adsorption capacity of 509.47 mg g<sup>−1</sup> for iodine in n-hexane solution. The outstanding performance of POP-W demonstrates significant potential for application in the immobilizati0on and recovery of radioactive iodine isotopes (e.g., <sup>129</sup>I, <sup>131</sup>I) from nuclear waste streams.</div></div>","PeriodicalId":392,"journal":{"name":"Microporous and Mesoporous Materials","volume":"399 ","pages":"Article 113836"},"PeriodicalIF":4.7,"publicationDate":"2025-09-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145060905","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