{"title":"High-efficiency removal of ammonia nitrogen from aqueous solutions using NaCl-microwave co-modified natural zeolite","authors":"Penghu Zheng, Xin Wang, Li Cui, Kai Cui","doi":"10.1007/s10934-026-01931-0","DOIUrl":"10.1007/s10934-026-01931-0","url":null,"abstract":"<div><p>To address the low ammonia nitrogen adsorption capacity of natural zeolite, NaCl-microwave co-modification was employed to improve its adsorption performance. Surface characterization of zeolite samples clarifies how modification alters its structural makeup and surface properties. Process parameters were optimized systematically through single-factor and orthogonal experiments, allowing exploration of the adsorption mechanism and relative importance of influencing factors for the NaCl-microwave co-modified zeolite, as well as the underlying regulatory principles. Results demonstrate that NaCl-microwave co-modified zeolite delivers substantially higher adsorption efficiency and removal performance relative to natural zeolite. Modification unblocks pore structures, increasing specific surface area from 46 m<sup>2</sup>·g<sup>− 1</sup> to 70 m<sup>2</sup>·g<sup>− 1</sup>, while promoting deeper Na<sup>+</sup> diffusion into zeolite channels and significantly raising Na<sup>+</sup> content. At near-neutral pH, ion exchange dominates ammonia nitrogen adsorption, with selectivity following the sequence Na<sup>+</sup>> Ca<sup>2+</sup>> K<sup>+</sup>> Mg<sup>2+</sup>. Under optimal adsorption conditions, the ammonia nitrogen removal efficiency from 100 mg·L<sup>− 1</sup> wastewater reaches 94.2%, 2.09 times that of natural zeolite. Langmuir modelling indicates a maximum adsorption capacity of 25.92 mg·g<sup>− 1</sup> at 313 K for the NaCl-microwave co-modified zeolite, eight times that of natural zeolite (3.23 mg·g<sup>− 1</sup>). These results highlight the strong potential of NaCl-microwave co-modified zeolite for ammonia nitrogen pollution remediation.</p></div>","PeriodicalId":660,"journal":{"name":"Journal of Porous Materials","volume":"33 4","pages":"1147 - 1161"},"PeriodicalIF":3.0,"publicationDate":"2026-06-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148781973","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}
Nezahat Arzu Kayar, Hasan Hüsnü Eren, Bayram Ilkhan, Ahmet Yilmaz Coban
{"title":"Physicochemical characterization and in vitro evaluation of natural clinoptilolite zeolite on proliferation and migration of fibroblast and epithelial cell lines: Implications for periodontal wound healing","authors":"Nezahat Arzu Kayar, Hasan Hüsnü Eren, Bayram Ilkhan, Ahmet Yilmaz Coban","doi":"10.1007/s10934-026-01925-y","DOIUrl":"10.1007/s10934-026-01925-y","url":null,"abstract":"<div><p>This study aimed to characterize a natural clinoptilolite-type zeolite and evaluate its effects on proliferation and migration in L929 (fibroblast) and HEK293T (epithelial) cell lines. XRD analysis confirmed the material's high purity, with clinoptilolite as the dominant phase (72.9%). XRF and ICP-MS analyses demonstrated that the Si/Al ratio (4.8–5.4) and cation exchange capacity (CEC: 2.38 meq/g) were consistent with typical clinoptilolite. SEM revealed irregular, aggregated particles (7–10 µm) with high porosity. Cell proliferation (MTT assay) and migration (Scratch Wound Assay) were assessed. The zeolite showed a significant dose- and time-dependent proliferative effect on both cell lines. Notable increases in proliferation were observed at 500 µg/mL in L929 cells at 72 h (<i>p</i> < 0.0001) and at 600 µg/mL in HEK293T cells (<i>p</i> < 0.0001). Cell migration was also enhanced, particularly at 200 µg/mL in L929 ( <i>p</i> < 0.01) and 100 µg/mL in HEK293T ( <i>p</i> < 0.001). Overall, these results indicate that this high-purity clinoptilolite zeolite possesses the potential to support the proliferation and migration of key cell types involved in wound healing and thus holds great promise as a bioactive material for biomedical applications.</p></div>","PeriodicalId":660,"journal":{"name":"Journal of Porous Materials","volume":"33 4","pages":"1119 - 1132"},"PeriodicalIF":3.0,"publicationDate":"2026-06-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s10934-026-01925-y.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148782389","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}
{"title":"Enhanced lanthanum adsorption using MOF-199 biopolymer hybrid beads: a comprehensive study on synthesis, characterization, and adsorption performance","authors":"Anushka Rawat, Isha Riyal, Himani Sharma, Charu Dwivedi","doi":"10.1007/s10934-026-01929-8","DOIUrl":"10.1007/s10934-026-01929-8","url":null,"abstract":"<div><p>Lanthanum contamination in the aquatic environment has become a critical environmental concern that calls for creative and effective treatment techniques. A hybrid adsorption material was prepared here by embedding MOF-199 into sodium alginate beads for the effective removal of lanthanum from an aqueous solution. Composite beads were prepared using the gelation method, which proved to be simple and scalable, and allowed the uniform dispersion of MOF-199 within the alginate matrix. FESEM analysis showed a rough morphology favorable for adsorption, while FTIR confirmed interaction between MOF-199 and alginate matrix. XPS verified the elemental composition and involvement of active binding sites during the adsorption of La<sup>3+</sup> ion, and XRD revealed the successful integration of the MOF structure into the polymeric framework. The MOF-199@SA beads showed 99.78% (49.80 mg/g) adsorption capacity. The findings herein demonstrate that the MOF-199@SA beads are a highly efficient, structurally stable, and environmentally friendly adsorbent for the abatement of lanthanum contamination in the water system.</p></div>","PeriodicalId":660,"journal":{"name":"Journal of Porous Materials","volume":"33 4","pages":"1133 - 1145"},"PeriodicalIF":3.0,"publicationDate":"2026-06-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148782388","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}
{"title":"A green steam‑assisted fabrication of binder‑free shaped ZSM‑5 for n‑hexane‑to‑olefins reaction","authors":"Guomei Ren, Yaquan Wang, Lingzhen Bu, Muhan Wen","doi":"10.1007/s10934-026-01930-1","DOIUrl":"10.1007/s10934-026-01930-1","url":null,"abstract":"<div><p>A green synthesis strategy was proposed to address the industrial shaping challenge of powdered ZSM-5 zeolites. Tetrapropylammonium hydroxide was employed as both extrusion promoter and template to prepare shaped precursors. Subsequently, a series of binder-free ZSM-5 zeolites with adjustable SiO<sub>2</sub>/Al<sub>2</sub>O<sub>3</sub> ratios (SARs) from 25 to 130 were successfully synthesized via a facile steam-assisted crystallization process with minimal water consumption. XRD, XRF, SEM, N<sub>2</sub> physisorption, Py-IR, NH<sub>3</sub>-TPD and TGA were employed to investigate the physicochemical properties of the as-obtained ZSM-5. It was found that, compared to binder-containing ZSM-5 zeolite, the binder-free zeolite exhibited high crystallinity, well-developed porosity and suitable acidic properties. In addition, the acid density, acid strength and acid distribution of binder-free ZSM-5 could be tuned by regulating SAR. Compared with the traditional binder-containing zeolite (NKZ5-40), the binder-free zeolite (Z5-40) prepared by this method demonstrated significantly superior performance in the n-hexane cracking: Z5-40 maintained 98.5% conversion over 500 min, which was 15% longer than that of NKZ5-40. Its yield of light olefins remained at 50.1%, much higher than the latter (34.8%), while the coke deposition rate was only 1.78 mg·gcat<sup>− 1</sup>·h<sup>− 1</sup>, approximately one-third of that of NKZ5-40. This method eliminates the use of organic extrusion promoters during the shaping process and cuts water usage, thereby conserving water resources and simplifying post-treatment. These features contribute to a more environmentally benign synthetic route, and this work establishes a foundation for future studies on extending the method to other zeolite frameworks and scaling it up for practical industrial use.</p></div>","PeriodicalId":660,"journal":{"name":"Journal of Porous Materials","volume":"33 4","pages":"1107 - 1117"},"PeriodicalIF":3.0,"publicationDate":"2026-06-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148782111","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}
Jasim I. Humadi, Liqaa I. Saeed, Amer T. Nawaf, Saad A. Jafar, Ahmad A. Aabid, Mustafa M. Hathal
{"title":"Photocatalytic diesel desulfurization using Fe-modified Beta zeolite in a UV-assisted stirred slurry photoreactor: performance and dynamic analysis","authors":"Jasim I. Humadi, Liqaa I. Saeed, Amer T. Nawaf, Saad A. Jafar, Ahmad A. Aabid, Mustafa M. Hathal","doi":"10.1007/s10934-026-01928-9","DOIUrl":"10.1007/s10934-026-01928-9","url":null,"abstract":"<div><p>The paper has examined photocatalytic oxidative desulfurization of diesel fuel using a modified Beta zeolite catalyst (5 wt% Fe) in a UV-based stir slurry photoreactor. The objective was to determine the effect of operating conditions on the efficiency of sulphur-removal as well as to support the experimental results by the use of Computational Fluid Dynamics (CFD) to analyse the internal flow and mixing patterns. The synthesis of catalysts was done via wet impregnation, and the catalysts were characterised using X-ray diffraction (XRD), N <sub>2</sub> adsorptiondesorption analysis, NH 3 -TPD, and UV-Vis diffuse reflectance spectroscopy; the iron loading was determined using ICP-OES. Sulphur removal was systematically investigated with regard to the temperature (40–80 <sup>o</sup> C), reaction time (40–100 min), and the stirring speed (300–700 rpm). Within the ranges of temperature, contact time, and stirring speed, the removal of sulphur rose with temperature, length of contact time, and stirring speed. The highest reported sulphur-removal efficiency was 95.45 per cent at 80 <sup>o</sup> C, 100 min, and 700 rpm. The CFD findings showed that the increase in desulfurization performance was in line with the experimentally observed increase in the hydrodynamic behaviour and mixing at high stirring speeds. The results indicate that Fe-modified Beta zeolite is a potential catalyst to be used in photocatalytic desulfurization of diesel under relatively mild operating conditions, which is an alternative approach to deep sulphur removal less harsh than hydrodesulfurization.</p></div>","PeriodicalId":660,"journal":{"name":"Journal of Porous Materials","volume":"33 4","pages":"1093 - 1106"},"PeriodicalIF":3.0,"publicationDate":"2026-05-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148783462","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}
Letian Yang, Haokun Ti, Weihao Yan, Qingzhen Xu, Danyang Wang, Xuegu Zhang, Zidie Zhang, Shi Li
{"title":"Study on MOFs selection for TCM adsorption and adsorptive mechanisms via descriptor guidance and molecular simulation","authors":"Letian Yang, Haokun Ti, Weihao Yan, Qingzhen Xu, Danyang Wang, Xuegu Zhang, Zidie Zhang, Shi Li","doi":"10.1007/s10934-026-01926-x","DOIUrl":"10.1007/s10934-026-01926-x","url":null,"abstract":"<div><p>As trichloromethane (TCM) is classified as a Group 2B carcinogen by the World Health Organization (WHO), adsorption using high-performance metal-organic frameworks (MOFs) has become a commonly employed control technique for TCM mitigation. To efficiently select suitable MOFs for TCM adsorption from a vast array of available materials, this study first applied machine learning to establish a dataset, identify key descriptors, and develop a MOF screening model using a decision tree (DT) algorithm guided by these descriptors. The screening model achieved an accuracy of 89.41%, ultimately identifying MOF-5 as suitable candidates for TCM adsorption from over 14,000 MOFs. Further, molecular simulation techniques were used to construct molecular models of five MOF-5 materials: MOF-5, MOF-5-NH<sub>2</sub>, MOF-5-Cl, MOF-5-F, and MOF-5-OH. The adsorption isotherms, interaction energies, adsorption density distribution, energy density distribution, electrostatic potential, radial distribution function (RDF), and diffusion coefficients were thoroughly examined to elucidate the microscopic adsorption mechanisms of MOF-5 based materials for TCM. This work provides valuable insights for the efficient, targeted optimization and selection of MOFs in adsorption applications, particularly for the adsorption and control of TCM.</p></div>","PeriodicalId":660,"journal":{"name":"Journal of Porous Materials","volume":"33 3","pages":"1073 - 1091"},"PeriodicalIF":3.0,"publicationDate":"2026-05-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148292314","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}
Daniele S. Oliveira, Adriana P.F. Paulista, Jean-Dominique Comparot, Anne G.D. Santos, Tiago P. Braga, Alexander Sachse, Sibele B.C. Pergher, Vinícius P.S. Caldeira
{"title":"Improved glycerol dehydration through hierarchical beta zeolite","authors":"Daniele S. Oliveira, Adriana P.F. Paulista, Jean-Dominique Comparot, Anne G.D. Santos, Tiago P. Braga, Alexander Sachse, Sibele B.C. Pergher, Vinícius P.S. Caldeira","doi":"10.1007/s10934-026-01924-z","DOIUrl":"10.1007/s10934-026-01924-z","url":null,"abstract":"<div>\u0000 \u0000 <p>The increasing production of biodiesel has led to a surplus accumulation of glycerol as a byproduct, making its valorization essential for the sustainable development of the biodiesel industry, aiming for economic and environmental benefits. The dehydration of glycerol represents a promising alternative in the quest for higher value-added products, such as acrolein and acetaldehyde. Innovatively, hierarchical beta zeolite with uniform mesopores is reported in glycerol dehydration. The use of ammonium hydroxide (NH<sub>4</sub>OH) as an alkaline agent combined with the cetyltrimethylammonium bromide (CTAB) surfactant efficiently promoted the generation of uniform mesopores. Variations in the concentration of NH<sub>4</sub>OH and amount of CTAB significantly impacted the textural properties of the zeolitic materials and allowed for increasing the amount of Lewis acid sites. Hence, hierarchical beta zeolite allows to achieve superior specific activity in the dehydration of glycerol, reaching 93% of conversion, with acrolein (70%) and acetaldehyde (22%) as the main products.</p>\u0000 </div>","PeriodicalId":660,"journal":{"name":"Journal of Porous Materials","volume":"33 3","pages":"1059 - 1072"},"PeriodicalIF":3.0,"publicationDate":"2026-04-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s10934-026-01924-z.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148292260","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}
{"title":"Oxalic acid-based covalent triazine framework for efficient, rapid, and simultaneous adsorption of anionic and cationic dyes from water","authors":"Somayeh Nasrian, Massoumeh Bagheri","doi":"10.1007/s10934-025-01908-5","DOIUrl":"10.1007/s10934-025-01908-5","url":null,"abstract":"<div><p>Considering the increasing release of carcinogenic dyes into aquatic environments, there is an urgent need to develop effective adsorbents. This research addresses the issue by synthesizing novel melamine-based covalent triazine frameworks (CTFs) containing oxalic acid (MOX), adipic acid (MAD), and a diacids mixture (MOX/MAD) under simple one-pot conditions. Fourier-transform infrared spectroscopy (FT-IR), thermal gravimetric analysis (TGA), X-ray diffraction (XRD), scanning electron microscopy with energy dispersive X-ray spectroscopy (SEM-EDS), transmission electron microscopy (TEM), Brunauer Emmett Teller (BET), and zeta potential (ZP) measurements were used to characterize CTFs, elucidating their morphology, composition, and physicochemical properties. The CTFs synthesized under optimized conditions (in DMSO at 150<sup>°</sup>C for 6 days) exhibited amorphous structure, high thermal stability, and an isoelectric point around pH 7. BET results for MOX indicated a high surface area and total volume of 530.66 m<sup>2</sup> g<sup>− 1</sup> and 0.93 cm<sup>3</sup> g<sup>− 1</sup>, respectively, making it a selected candidate for adsorption studies. Batch experiments demonstrated highly efficient removal of model dyes Congo red (CR) and Methylene blue (MB), achieving maximum adsorption capacities of 322.58 and 263.19 mg g<sup>− 1</sup>, respectively, at initial pH 6, and contact time of 10 min. The adsorption isotherm and kinetic data were best fitted by the Langmuir model for CR and the Freundlich model for MB, with the pseudo-second-order model describing the kinetics for both dyes. Thermodynamic data indicated that dye adsorption was endothermic and spontaneous, that it was mainly a physisorption-controlled process. Moreover, MOX showed remarkable efficiency for simultaneous removal of CR and MB, achieving almost 100% removal within 1 min over a wide pH range.</p></div>","PeriodicalId":660,"journal":{"name":"Journal of Porous Materials","volume":"33 3","pages":"1035 - 1057"},"PeriodicalIF":3.0,"publicationDate":"2026-04-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148292258","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}
Musawira Iftikhar, Mohd Hafiz Dzarfan Othman, Imran Ullah Khan, Nurul Jannah Ismail, Siti Hamimah Sheikh Abdul Kadir, Muhammad Nidzhom Bin Zainol Abidin, Zaib Jahan, Ahmad Fauzi Ismail, Juhana Jaafar, Mukhlis A. Rahman
{"title":"Tailoring ZIF-8 surface chemistry via amine modification for efficient p-Cresol adsorption","authors":"Musawira Iftikhar, Mohd Hafiz Dzarfan Othman, Imran Ullah Khan, Nurul Jannah Ismail, Siti Hamimah Sheikh Abdul Kadir, Muhammad Nidzhom Bin Zainol Abidin, Zaib Jahan, Ahmad Fauzi Ismail, Juhana Jaafar, Mukhlis A. Rahman","doi":"10.1007/s10934-026-01923-0","DOIUrl":"10.1007/s10934-026-01923-0","url":null,"abstract":"<div><p>To effectively remove p-Cresol from blood, adsorbents with high adsorption efficiency need to be designed and developed. Due to their unique textual properties, wide surface area, and chemical stability, metal-organic frameworks (MOFs) have attracted attention as promising materials for a variety of applications. However, their potential in adsorption processes, especially for removing uremic toxins like p-Cresol, remains underexplored. Zeolitic imidazolate frameworks-8 (ZIF-8) and its amine-functionalized derivative (A-ZIF-8) were synthesized in this study to evaluate their performance as p-Cresol adsorbents in aqueous solutions. To confirm the structural properties and successful amine modification of A-ZIF-8, various characterization techniques were used, such as Fourier Transform Infrared Spectroscopy (FTIR), X-ray Diffraction (XRD), Field Emission Scanning Electron Microscopy (FESEM), and Brunauer-Emmett-Teller (BET) analysis. The results revealed that A-ZIF-8 exhibited enhanced crystallinity, surface area, and pore volume compared to pristine ZIF-8. Zeta potential measurements showed a shift from − 3.47 mV for ZIF-8 to + 35 mV for A-ZIF-8, significantly improving its adsorption capacity of the negatively charged p-Cresol. Experimental Adsorption studies demonstrated that A-ZIF-8 achieved the maximum experimental adsorption of p-Cresol at 432 mg g⁻¹, substantially outperforming ZIF-8, which achieved 289 mg g⁻¹. Thermogravimetric analysis and adsorption-desorption isotherms further indicated enhanced thermal stability and microporosity in A-ZIF-8. These findings underscore the effectiveness of amine modification in enhancing the adsorption capabilities of ZIF-8, positioning A-ZIF-8 as a superior candidate for uremic toxin removal, particularly in p-Cresol adsorption.</p><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":"33 3","pages":"1015 - 1033"},"PeriodicalIF":3.0,"publicationDate":"2026-03-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s10934-026-01923-0.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148292251","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}
{"title":"Experimental investigation on hygroscopic kinetics and regeneration behavior of silica gel-modified molecular sieve composite desiccant","authors":"Feng Jiang, Wusheng Luo, Yihua Liu, Yimin Chen, Qi’ao Li, Shengfei Yu","doi":"10.1007/s10934-026-01922-1","DOIUrl":"10.1007/s10934-026-01922-1","url":null,"abstract":"<div>\u0000 \u0000 <p>To address the stringent humidity control requirements of high-end manufacturing sectors such as lithium batteries and biopharmaceuticals, which demand dew point temperatures below -40 °C, this study investigates the moisture adsorption characteristics and regeneration mechanisms of silica-based composite 5A molecular sieve (SG-5A MS) under high-humidity inlet conditions through experimental and theoretical analysis. Utilizing scanning electron microscopy (SEM), nitrogen adsorption–desorption, and thermogravimetric analysis, combined with static adsorption, dynamic mass transfer, and cyclic regeneration experiments, the study systematically elucidates the influence of the material’s microstructure on its deep dehumidification performance. Results demonstrate that SG-5A MS achieves an ultra-low dew point temperature output of -81.68 °C under high-humidity inlet conditions through synergistic interaction between silica gel and molecular sieve. Its dynamic adsorption rate reaches 30.6622%, significantly outperforming either silica gel or molecular sieve alone. After 10 regeneration cycles at 118 °C, it maintained high adsorption capacity, meeting industrial-grade humidity control requirements. The study investigated the relationships between pore structure, moisture absorption performance, and regeneration stability as variables changed. It proposed material selection and process optimization strategies suitable for deep dehumidification in high-humidity environments, providing theoretical support for designing low-dew-point rotary desiccant dehumidification systems in fields such as lithium battery electrode sheet production and pharmaceutical freeze-drying.</p>\u0000 </div>","PeriodicalId":660,"journal":{"name":"Journal of Porous Materials","volume":"33 3","pages":"999 - 1014"},"PeriodicalIF":3.0,"publicationDate":"2026-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148292313","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}