Journal of Porous Materials最新文献_第10页

Tailoring the chemical environment of Co in hierarchical Silicalite-1 for selective aerobic oxidation of cyclohexane 分层硅石-1中Co的化学环境对环己烷选择性好氧氧化的影响

IF 3.2 4区材料科学

Journal of Porous Materials Pub Date : 2025-09-23 DOI: 10.1007/s10934-025-01851-5

Xinwu Cao, Chenlong Xue, Junjun Mei, Chunhua Lin, Xiaomeng Liu, Shucong Zhou, Baorong Wang

{"title":"Tailoring the chemical environment of Co in hierarchical Silicalite-1 for selective aerobic oxidation of cyclohexane","authors":"Xinwu Cao, Chenlong Xue, Junjun Mei, Chunhua Lin, Xiaomeng Liu, Shucong Zhou, Baorong Wang","doi":"10.1007/s10934-025-01851-5","DOIUrl":"10.1007/s10934-025-01851-5","url":null,"abstract":"<div>Heterogeneous cobalt materials were important catalyst for the development of a more efficient cyclohexane oxidation process, however the catalytic performance of which should further be improved. Herein, hierarchical Silicalite-1 confined with cobalt as the active centers was hydrothermally synthesized, the chemical environment of Co and intracrystalline porosity were tuned, and the influences of which on cyclohexane oxidation was detailed studied. The cobalt in conventional Silicalite-1 was mainly four-coordinated. In the hierarchical catalyst prepared by silanization, intracrystalline mesopores in the 4.52–5.92 nm range were created, and the mesopore volume ranged from 0.127 to 0.193 cm3/g. More importantly, although the cobalt cations were usually in the tetra- and octahedral state, Si–O-Co bonds characterized with cobalt coordination number of 2.1–2.3 have been generated. The Si–O-Co bonds can further be recrystallized to Co3O4 nanoclusters under extended crystallization condition, and the coordination number of cobalt increased to 3.7. In cyclohexane oxidation, the activation energy (Ea) over cobalt decreased with the coordination number, the intracrystalline diffusion limitation was released by mesopores, and notably enhanced cyclohexane conversion (8.8%) and selectivity of cyclohexanol and cyclohexanone (KA oil, 91.2%) was achieved over the hierarchical Silicalite-1 with two-coordinated Co. Moreover, cyclohexyl hydroperoxide (CHHP) can in-situ be decomposed, and much more cyclohexanone can be produced with decreasing coordination number of cobalt, the CHHP selectivity decreased from 50% to less than 2.5%, while the ratio of cyclohexanol to cyclohexanone decreased from about 1.1 to 0.7. The catalytic stability was good, the KA oil selectivity and ratio of cyclohexanol to cyclohexanone remained almost the same after recycling seven times.</div>","PeriodicalId":660,"journal":{"name":"Journal of Porous Materials","volume":"32 6","pages":"2455 - 2466"},"PeriodicalIF":3.2,"publicationDate":"2025-09-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145493405","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Eco-friendly synthesis of carbon nanomaterials from pumpkin waste 利用南瓜废料环保合成碳纳米材料

IF 3.2 4区材料科学

Journal of Porous Materials Pub Date : 2025-09-22 DOI: 10.1007/s10934-025-01844-4

Scarlett Allende, Yang Liu, Muhammad Adeel Zafar, Mohan V. Jacob

{"title":"Eco-friendly synthesis of carbon nanomaterials from pumpkin waste","authors":"Scarlett Allende, Yang Liu, Muhammad Adeel Zafar, Mohan V. Jacob","doi":"10.1007/s10934-025-01844-4","DOIUrl":"10.1007/s10934-025-01844-4","url":null,"abstract":"<div>Waste management remains a major environmental challenge in the food sector, making the recovery and reuse of organic waste essential. This study presents a novel and optimised approach to converting pumpkin peel waste into high-quality carbon material using microwave-assisted pyrolysis (MAP), without the use of chemical additives or metal doping. The resulting carbon nanomaterial exhibits desirable characteristics, including crystalline to semicrystalline carbon nanoparticles (lattice spacing of 2.29 Å), microporosity of 29.1 m²/g, and a pore diameter of 3.7 nm, along with enhanced electron transfer kinetics (Rct = 563 Ω). This carbon material was employed to modify a screen-printed carbon electrode (SPCE) for the electrochemical detection of nitrite. The modified electrode shows a significant improvement in electrochemical response, with an increase in current output from 20 µA to 30 µA, resulting in higher conductivity, a broader Linear detection range, and a lower detection Limit of 10 µM. This work demonstrates a promising result for upcycling food waste into functional nanomaterials, offering both environmental benefits and practical applications in electrochemical sensing technologies.<h3>Graphical abstract</h3><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":660,"journal":{"name":"Journal of Porous Materials","volume":"32 6","pages":"2443 - 2453"},"PeriodicalIF":3.2,"publicationDate":"2025-09-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s10934-025-01844-4.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145493335","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Template-free synthesis of low-silica chabazite zeolite aggregates in K+/Sr2+ system by in situ hydrothermal growth 原位水热生长法在K+/Sr2+体系中无模板合成低硅钙辉石沸石聚落

IF 3.2 4区材料科学

Journal of Porous Materials Pub Date : 2025-09-18 DOI: 10.1007/s10934-025-01849-z

Yi Qian, Qingqing Jiang, Shimeng Xiang, Zhenhao Lu, Xiaowen Xu, Jing Yang, Guoliang Dai, Ruifeng Song, Ji Jiang

{"title":"Template-free synthesis of low-silica chabazite zeolite aggregates in K+/Sr2+ system by in situ hydrothermal growth","authors":"Yi Qian, Qingqing Jiang, Shimeng Xiang, Zhenhao Lu, Xiaowen Xu, Jing Yang, Guoliang Dai, Ruifeng Song, Ji Jiang","doi":"10.1007/s10934-025-01849-z","DOIUrl":"10.1007/s10934-025-01849-z","url":null,"abstract":"<div>Separating CO2 and N2 from CH4 is crucial for energy production and environmental protection. This study showed the rapid synthesis of CHA zeolites with different morphologies using an in situ growth method, without the assistance of organic structure directing agents (OSDA) or fluoride media. The crystallization behavior of CHA zeolites was studied in terms of synthesis gel composition (including water content, silicon and aluminum content, alkalinity and Sr2+ concentration), synthesis temperature and duration. The results suggested that pure phase CHA zeolite nano-aggregates could be synthesized with broad precursor conditions at 150 °C for only 4 h. Then, K-CHA zeolite was ion-exchanged to Na-CHA and Ca-CHA and the adsorption properties of CHA zeolites with different morphologies and ions were studied. The results suggested that Na-CHA exhibited highest CH4, CO2 and N2 adsorption capacity and showed higher ideal selectivity for N2/H2; Although Ca-CHA zeolites exhibited relative lower CO2 and CH4 adsorption capacity, it exhibited the highest ideal selectivity for CO2/CH4; Simultaneously, K-CHA zeolite exhibited high CH4 adsorption capacity and high adsorption separation ability of CH4/N2. Furthermore, breakthrough experiments have confirmed the practical feasibility of separating CO2 from CH4.</div>","PeriodicalId":660,"journal":{"name":"Journal of Porous Materials","volume":"32 6","pages":"2427 - 2441"},"PeriodicalIF":3.2,"publicationDate":"2025-09-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145493332","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Sustainable waste Biomass-Derived porous carbons with superior hierarchical porosity for High-Performance CO2 capture 可持续废弃物生物质衍生多孔碳，具有优越的分层孔隙度，用于高性能二氧化碳捕获

IF 3.2 4区材料科学

Journal of Porous Materials Pub Date : 2025-09-17 DOI: 10.1007/s10934-025-01859-x

Fumin Shen, Shunyang Yao, Yuanchao Pei, Rubin Sun

{"title":"Sustainable waste Biomass-Derived porous carbons with superior hierarchical porosity for High-Performance CO2 capture","authors":"Fumin Shen, Shunyang Yao, Yuanchao Pei, Rubin Sun","doi":"10.1007/s10934-025-01859-x","DOIUrl":"10.1007/s10934-025-01859-x","url":null,"abstract":"<div>The increasing levels of carbon dioxide (CO2) emissions driven by industrial activities highlight the urgent need for the development of efficient and sustainable CO2 capture technologies. Biomass-derived porous carbons have emerged as promising candidates for CO2 adsorption due to their low cost, high surface area, and adjustable pore structure. In this study, hierarchically porous carbons (HPCs) were synthesized from waste acer truncatum wood through pre-carbonization and subsequent KOH activation. The synthesis conditions, including activation temperature and activating agent concentration, were optimized to precisely tailor the pore architecture. The resulting HPC exhibited excellent CO2 adsorption capacities of 7.56 mmol·g⁻1 at 0 °C and 4.29 mmol·g⁻1 at 25 °C under ambient pressure. Notably, ultramicropores (< 0.7 nm) exhibited a dominant role in CO2 capture at low pressures, while narrow micropores (< 1.0 nm) contributed significantly across a range of low-pressure conditions. The hierarchical pore structure enhanced CO2 uptake at higher pressures. Furthermore, the material demonstrated exceptional CO2/N2 selectivity, reaching up to 112 at 0.15 bar and 0 °C, along with good cyclic stability, highlighting its potential in post-combustion CO2 capture. This work provides a sustainable strategy for converting waste biomass into high-value adsorbents, offering a solution that addresses both environmental concerns and economic feasibility.</div>","PeriodicalId":660,"journal":{"name":"Journal of Porous Materials","volume":"32 6","pages":"2413 - 2425"},"PeriodicalIF":3.2,"publicationDate":"2025-09-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145493611","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Organic acid-induced preparation of ordered mesoporous carbon assisted by TMB and its hydrodesulfurization performance TMB辅助有机酸诱导有序介孔碳的制备及其加氢脱硫性能

IF 3.2 4区材料科学

Journal of Porous Materials Pub Date : 2025-09-16 DOI: 10.1007/s10934-025-01852-4

Hailiang Yin, Tongna Zhou, Zhonglan Shen, Huanhuan Li, Guangyan Zhang, Lingxiao Guo, Chenguang Liu

{"title":"Organic acid-induced preparation of ordered mesoporous carbon assisted by TMB and its hydrodesulfurization performance","authors":"Hailiang Yin, Tongna Zhou, Zhonglan Shen, Huanhuan Li, Guangyan Zhang, Lingxiao Guo, Chenguang Liu","doi":"10.1007/s10934-025-01852-4","DOIUrl":"10.1007/s10934-025-01852-4","url":null,"abstract":"<div>A new strategy has been developed for the preparation of ordered mesoporous carbon materials (OMCs) using weak organic acid induction assisted by 1,3,5-Trimethylbenzene (TMB). The type of acid, reaction temperature, TMB addition amount, and salt type all have different significant effects on the microstructure and morphology of carbon materials. In the absence of salt as a pore forming agent and inducing phase separation, OMCs was prepared by acetic acid induction at a reaction temperature of 100 °C and a TMB addition of 1 ml. The specific surface area and pore volume of mesoporous carbon are as high as 927 m2/g and 0.78 cm3/g, respectively, with a high mesoporous proportion of 72%. The catalyst obtained by loading MoO2 and NiO nanoparticles on OMCs shows a higher specific surface area and a higher proportion of easily reducible octahedral molybdenum species compared to the catalyst obtained by loading metal on alumina. In the hydrodesulfurization (HDS) experiment of dibenzothiophene, the catalysts showed better HDS catalytic performance and higher hydrogenolysis activity.</div>","PeriodicalId":660,"journal":{"name":"Journal of Porous Materials","volume":"32 6","pages":"2399 - 2411"},"PeriodicalIF":3.2,"publicationDate":"2025-09-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145493330","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Green synthesis and adsorption performance of ZSM-5 and mordenite zeolites for methanol removal ZSM-5和丝光沸石的绿色合成及其对甲醇的吸附性能

IF 3.2 4区材料科学

Journal of Porous Materials Pub Date : 2025-09-08 DOI: 10.1007/s10934-025-01839-1

Nadjat Chouat, Boumediéne Bensafi, Haroun Houicha, Chahrazed Bakhtaoui, Hafsa Boudinar, Fatiha Djafri

{"title":"Green synthesis and adsorption performance of ZSM-5 and mordenite zeolites for methanol removal","authors":"Nadjat Chouat, Boumediéne Bensafi, Haroun Houicha, Chahrazed Bakhtaoui, Hafsa Boudinar, Fatiha Djafri","doi":"10.1007/s10934-025-01839-1","DOIUrl":"10.1007/s10934-025-01839-1","url":null,"abstract":"<div>The development of effective adsorbents for methanol removal is critical for purification processes and environmental purposes. In this study, ZSM-5 and mordenite zeolites were synthesized using a green hydrothermal approach without organic structure-directing agents, with the goal of optimizing synthesis parameters such as Si/Al ratio, crystallization time, and temperature. The physicochemical optimized properties of the zeolites were thoroughly investigated utilizing XRD, XRF, FTIR, TGA, BET, and SEM. The impact of synthesis factors on the crystallinity, porosity, and adsorption performance of zeolites was carefully investigated. Methanol adsorption tests demonstrated that adsorption capacity is highly influenced by textural qualities and framework composition. Mordenite adsorbed more methanol than ZSM-5, owing to increased microporosity and stronger contact with methanol molecules. ZSM-5, on the other hand, had a quicker saturation rate due to steric hindrance and diffusion limits within its medium-pore structure. Adsorption isotherm and kinetic simulations indicated a physisorption-dominated mechanism for both zeolites. The findings demonstrate the effect of synthesis optimization on zeolite performance and suggest a long-term strategy for developing high-efficiency adsorbents for methanol separation and purification.</div>","PeriodicalId":660,"journal":{"name":"Journal of Porous Materials","volume":"32 6","pages":"2373 - 2397"},"PeriodicalIF":3.2,"publicationDate":"2025-09-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145493334","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Manipulation of Niobium Dopant concentrations on TiO2 nanotube arrays film via dual-steps electrochemical method for humidity sensor 双步电化学方法控制湿度传感器用TiO2纳米管阵列膜上铌掺杂物浓度

IF 3.2 4区材料科学

Journal of Porous Materials Pub Date : 2025-09-05 DOI: 10.1007/s10934-025-01853-3

N. E. A. Azhar, N. H. Sulimai, M. J. Salifairus, M. H. Mamat, S. S. Shariffudin, A. Shuhaimi, M. F. Malek, K. A. Eswar, M. Rusop

{"title":"Manipulation of Niobium Dopant concentrations on TiO2 nanotube arrays film via dual-steps electrochemical method for humidity sensor","authors":"N. E. A. Azhar, N. H. Sulimai, M. J. Salifairus, M. H. Mamat, S. S. Shariffudin, A. Shuhaimi, M. F. Malek, K. A. Eswar, M. Rusop","doi":"10.1007/s10934-025-01853-3","DOIUrl":"10.1007/s10934-025-01853-3","url":null,"abstract":"<div>Titanium dioxide (TiO2) material is suitable for sensing applications due to higher electron mobility, stability, high sensitivity to water vapor and more easily desorb physisorbed water molecules. However, the non-homogeneous formation of TiO2 nanotube arrays due to cracking structure is a common issue. Cracking during the preparation of TiO2 nanotube arrays (TiO2 NTAs) films can lead to the deterioration and malfunction of the nanotubes. The work presented here describes the niobium-doped TiO2 NTAs (Nb-doped TiO2 NTAs) films prepared by the dual-step electrochemical methods at different doping concentrations (1 to 7 at%). It was found that the film doped at 3 at% and annealed at 500 °C showed excellent conductivity with a value of 0.52 S. cm−1. Results showed that the TiO2 NTAs exhibited a humidity sensitivity of 239.85. The humidity sensing performance of the fabricated TiO2 NTAs has been enhanced to 602.15 by doping with 3 at% of Nb. The enlargement of the area facilitated a slight increment of humidity sensitivity of Nb-doped TiO2 NTAs films. This phenomenon was induced by reducing the average diameter of NTAs in TiO2 film when the Nb dopant occupied the TiO2 structure (59 to 48 nm). Nb is commonly combined with TiO2 material as its regarded as a promising dopant for modifying crystalline structure. The Nb-doped TiO2 NTAs shows high sensor stability since the Nb ions widen the host TiO2 lattice thus improving the conductivity of TiO2. The optimized Nb-doped TiO2 NTAs films using the electrochemical cathodization method shows it is applicable for humidity sensor.</div>","PeriodicalId":660,"journal":{"name":"Journal of Porous Materials","volume":"32 6","pages":"2349 - 2372"},"PeriodicalIF":3.2,"publicationDate":"2025-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145493553","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Properties of CrOx(inc)/MCM-41 catalysts obtained by chromium incorporation and its catalytic activity in the reaction of propane dehydrogenation in the presence of CO2 研究了铬掺杂制备的CrOx(inc)/MCM-41催化剂的性能及其在CO2存在下丙烷脱氢反应中的催化活性

IF 3.2 4区材料科学

Journal of Porous Materials Pub Date : 2025-09-02 DOI: 10.1007/s10934-025-01850-6

Omvir Singh, Marina A. Tedeeva, Maria S. Igonina, Petr V. Pribytkov, Konstantin B. Kalmykov, Gennadiy I. Kapustin, Vera D. Nissenbaum, Igor V. Mishin, Sergey F. Dunaev, Leonid M. Kustov, Alexander L. Kustov

{"title":"Properties of CrOx(inc)/MCM-41 catalysts obtained by chromium incorporation and its catalytic activity in the reaction of propane dehydrogenation in the presence of CO2","authors":"Omvir Singh, Marina A. Tedeeva, Maria S. Igonina, Petr V. Pribytkov, Konstantin B. Kalmykov, Gennadiy I. Kapustin, Vera D. Nissenbaum, Igor V. Mishin, Sergey F. Dunaev, Leonid M. Kustov, Alexander L. Kustov","doi":"10.1007/s10934-025-01850-6","DOIUrl":"10.1007/s10934-025-01850-6","url":null,"abstract":"<div>The oxidative dehydrogenation of propane (ODP) using CO2 offers a promising route to propylene production, as CO2 acts as a milder oxidant than O2. This study focuses on the synthesis and characterization of CrOx/MCM-41 catalysts prepared by co-precipitation of chromium nitrate and tetraethyl orthosilicate (TEOS) in the presence of the C16TMABr template. The resulting MCM-41-supported catalysts, along with the initial MCM-41 support, were characterized by N2 physisorption, TG-DTG-DTA, XRD, FT-IR spectroscopy, SEM-EDS, UV-Vis DRS, XPS, TPR-H2, and small-angle X-ray scattering. Analysis revealed that Cr in the 1-5Crinc/MCM-41 samples primarily exists as Cr6+, while in the 7-9Crinc/MCM-41 samples, both Cr3+ and Cr6+ are present, with Cr3+ being the dominant species. Catalytic testing conducted at an atmospheric pressure in the temperature range of 550–750 °C showed that the 5Crinc/MCM-41 and 3Crinc/MCM-41 catalysts achieved the highest propylene selectivity (68% at 575 °C with a 19% propane conversion and 69% at 600 °C with a 13% propane conversion, respectively). Notably, the incorporated Crinc/MCM-41 catalysts exhibited a 1.5–2.5 times higher productivity compared to supported Cr/MCM-41 catalysts.</div>","PeriodicalId":660,"journal":{"name":"Journal of Porous Materials","volume":"32 6","pages":"2329 - 2348"},"PeriodicalIF":3.2,"publicationDate":"2025-09-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145493456","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Influencing factors and mechanisms in the magnetic silica molecular sieves Preparation process 磁性硅分子筛制备过程中的影响因素及机理

IF 3.2 4区材料科学

Journal of Porous Materials Pub Date : 2025-09-02 DOI: 10.1007/s10934-025-01838-2

Lei Zhang, Haocheng Zhao, Qi Wang, Lei Zhang, Ruikang Song

{"title":"Influencing factors and mechanisms in the magnetic silica molecular sieves Preparation process","authors":"Lei Zhang, Haocheng Zhao, Qi Wang, Lei Zhang, Ruikang Song","doi":"10.1007/s10934-025-01838-2","DOIUrl":"10.1007/s10934-025-01838-2","url":null,"abstract":"<div>Magnetic silica molecular sieves have garnered significant attention for their combined molecular sieving properties and magnetic responsiveness, offering promising applications in catalysis and environmental remediation. This study systematically investigates the hydrothermal synthesis of silicalite-1 composites incorporating transition metal ferrites (Mg, Zn, Ni, Co) to develop magnetically separable molecular sieves. Through controlled variation of synthesis parameters including template concentration, water-to-silicon ratio, crystallization temperature and duration, we established optimal conditions yielding well-defined crystalline materials with preserved framework integrity. Comprehensive characterization through vibrating sample magnetometry, X-ray diffraction, and electron microscopy revealed that the incorporated magnetic nanoparticles (12–18 nm) maintain their spinel structure while causing only minimal distortion to the host molecular sieve matrix. The optimized composites demonstrated tunable soft magnetic properties with saturation magnetization values spanning 0.52–16.13 emu/g, dependent on ferrite composition and loading. Notably, the synthesis protocol achieved precise control over particle size (400–600 nm) and crystallinity while enabling efficient magnetic separation. This work provides fundamental insights into the structure-property relationships of magnetic zeolite composites, establishing a robust platform for their rational design in advanced separation and catalytic applications.</div>","PeriodicalId":660,"journal":{"name":"Journal of Porous Materials","volume":"32 6","pages":"2313 - 2327"},"PeriodicalIF":3.2,"publicationDate":"2025-09-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145493550","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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 modified hydrophobic hybrid biopolymer alginate/soy protein isolates aerogels via scCO2 drying for oil removal scCO2干燥脱油法制备海藻酸盐/大豆蛋白改性疏水杂化生物聚合物

IF 3.2 4区材料科学

Journal of Porous Materials Pub Date : 2025-08-26 DOI: 10.1007/s10934-025-01836-4

Hannah Sofiah Roslan, Ana Najwa Mustapa, Ahmad Naqiuddin Muhamad Tajuddin, Suhaiza Hanim Hanipah, Ángel Martín, María José Cocero

{"title":"Synthesis of modified hydrophobic hybrid biopolymer alginate/soy protein isolates aerogels via scCO2 drying for oil removal","authors":"Hannah Sofiah Roslan, Ana Najwa Mustapa, Ahmad Naqiuddin Muhamad Tajuddin, Suhaiza Hanim Hanipah, Ángel Martín, María José Cocero","doi":"10.1007/s10934-025-01836-4","DOIUrl":"10.1007/s10934-025-01836-4","url":null,"abstract":"<div>Oil pollution poses significant environmental challenges, necessitating the development of effective and sustainable solutions for oil absorbents. In this work, sodium alginate (ALG) and soy protein isolate (SPI) were combined via a sol–gel method, followed by surface functionalization using methyltrimethoxysilane (MTMS) and tetraethyl orthosilicate (TEOS) and dried by supercritical carbon dioxide (scCO2) to produce a hybrid aerogel oil absorbent. ALG concentration was varied from 1 to 3% w/w, while SPI concentrations were constant at 0.5 and 1.5% w/w. Results showed that the one-step surface modification successfully changed the ALG/SPI aerogel to hydrophobic. ALG/SPI aerogels are capable of absorbing model pollutants (i.e., waste engine oil, heavy-duty oil and chloroform) ranging from 1.34 to 10.3 g/g, with the highest absorption efficiency reaching 91%. Notably, ALG/SPI 1_1.5 appears as the most effective, absorbing waste oil at temperatures from 40 to 80 °C, has a high surface area (210 m2∙g−1), lightweight (0.107 g·cm−3), thermally stable over 196 °C, and is reusable up to four times. ALG/SPI aerogel remains afloat, retaining absorbed pollutants and is biodegradable, hence reducing post-use environmental impact. This study demonstrated that the hybrid ALG/SPI aerogels are promising materials as oil absorbents in the oil/water separation industry.</div>","PeriodicalId":660,"journal":{"name":"Journal of Porous Materials","volume":"32 6","pages":"2293 - 2311"},"PeriodicalIF":3.2,"publicationDate":"2025-08-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s10934-025-01836-4.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145493552","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0