Journal of Porous Materials最新文献

{"title":"Bio-sourced mesoporous silica (MCM-41) derived from nettle leaves for efficient adsorption of 17α-ethinylestradiol (EE2): A sustainable approach to pharmaceutical pollutant removal","authors":"Nabil Ait Ben Hammou,&nbsp;Naima Bouchenafa-Saib,&nbsp;Redouane Chebout,&nbsp;Souad Boumad,&nbsp;Imane Moulefera","doi":"10.1007/s10934-025-01888-6","DOIUrl":"10.1007/s10934-025-01888-6","url":null,"abstract":"<div><p>This study presents a new environmentally friendly approach to synthesizing highly ordered mesoporous silica (MCM-41) using nettle leaves (Urtica dioica), an abundant but undervalued plant biomass that grows rapidly, requires no fertilizers or pesticides, and can be harvested several times a year. These characteristics make it a renewable and low-cost resource, offering an alternative to conventional silica source The proposed green synthesis involves alkaline extraction of silica, yielding a high-purity amorphous silica powder (confirmed by X-Ray diffraction and X-Ray Fluorescence), which is then used to synthesize MCM-41. Comprehensive characterization reveals that the resulting material (Bio-MCM-41) possesses a well-defined hexagonal mesostructure (X-Ray Diffraction, Transmission Electron Microscopy), a high specific surface area of 856 m² g^-1, a (Brunauer–Emmett–Teller analysis). The adsorption performance of Bio-MCM-41 was evaluated for the removal of the endocrine-disrupting pharmaceutical 17α-ethinylestradiol (EE2) from aqueous solutions. The material demonstrated a high adsorption capacity of 16.3 mg g^-1, achieving 92% removal within 45 min under neutral pH conditions. Adsorption isotherm data were best described by the Freundlich model, indicating a heterogeneous, multilayer adsorption mechanism. A comparison of the properties of Bio-MCM-41 with commercial MCM-41 and other bio-based variants demonstrated its advantages and performance. The results obtained underscore that Bio-MCM-41, derived from a renewable resource, is not only a cost-effective and environmentally benign adsorbent but also exhibits performance comparable to conventionally synthesized MCM-41. This work highlights the significant potential of biomass valorization in creating advanced porous materials for water remediation.</p></div>","PeriodicalId":660,"journal":{"name":"Journal of Porous Materials","volume":"33 2","pages":"481 - 503"},"PeriodicalIF":3.2,"publicationDate":"2025-11-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147743651","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":"Sm₂O₃-modified MoS₂/rGO nanocomposites: cost-effective and durable electrocatalysts for hydrogen evolution","authors":"A. Senthilkumar,&nbsp;B. Arivu Selvam,&nbsp;S. Vimala,&nbsp;K. A. Arokiaraj,&nbsp;M. Ramasamy,&nbsp;S. Sevvanthi","doi":"10.1007/s10934-025-01892-w","DOIUrl":"10.1007/s10934-025-01892-w","url":null,"abstract":"<div><p>The pursuit of efficient and cost-effective electrocatalysts for the hydrogen evolution reaction (HER) is critical to advancing sustainable hydrogen energy technologies. In this study, we report the fabrication of nanosheet-like samarium oxide–decorated MoS₂ supported on reduced graphene oxide (Sm₂O₃–MoS₂/rGO) nanocomposites via a facile hydrothermal method. Structural and surface characterizations, including X-ray diffraction, scanning electron microscopy, and X-ray photoelectron spectroscopy, confirm the successful integration of Sm₂O₃ nanoparticles with MoS₂ and rGO. The optimized Sm₂O₃–MoS₂/rGO electrocatalyst exhibits remarkable HER activity in 0.5 M H₂SO₄, delivering an onset potential of ~ 6.7 mV, a low overpotential of 13.6 mV at 10 mA cm⁻², and a Tafel slope of 48.7 mV dec⁻¹. Furthermore, the Sm₂O₃@MoS₂/rGO catalyst demonstrated outstanding stability during 25 h of continuous HER operation, showing minimal current loss. Its robust architecture and strong interfacial interaction among Sm₂O₃, MoS₂, and rGO facilitated efficient electron transport and preserved structural integrity, confirming excellent long-term electrocatalytic durability. This work highlights a practical strategy for developing earth-abundant, durable, and high-performance HER electrocatalysts.</p></div>","PeriodicalId":660,"journal":{"name":"Journal of Porous Materials","volume":"33 2","pages":"469 - 480"},"PeriodicalIF":3.2,"publicationDate":"2025-11-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147743691","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":"Multiple controlled delivery of doxorubicin through magnetically targetable hollow mesoporous silica nanoparticles","authors":"Enes Berksoy,&nbsp;Sezer Erdem,&nbsp;Beyhan Erdem","doi":"10.1007/s10934-025-01883-x","DOIUrl":"10.1007/s10934-025-01883-x","url":null,"abstract":"<div><p>In this study, it was aimed to prepare a drug delivery system that combines pH sensitivity and magnetic targetability, as well as controlled drug release by changing the loading capacity, in a single structure. Magnetically targetable hollow mesoporous silica nanocomposite (MT-HMSN) was synthesized by using cationic surfactant based selective etching method and investigated as drug carrier for the loading and release of anticancer drug Doxorubicin (DOX). Remarkably high adsorption capacities were achieved with 25, 50 and 75 mg/L DOX loading (50.32, 85.18 and 103.15 mg/g for MT-HMSN/DOX-25/50/75, respectively). After being followed by in vitro release study during 48 h, MT-HMSN/DOX-25 had the highest release percentages with 29.27% and 83.46% at pH 7.4 and 5.5, respectively, while MT-HMSN/DOX-75 exhibits the lowest release performances with 16.53% and 38.73% at these pH values, respectively. In this context, MT-HMSN could increase the drug release in cancerous regions where it is magnetically targeted depending on pH activation. Moreover, through the increase in capacity, the blocked situation in the porous structure causes difficulty in diffusion at the time of release, and thus, without the need for any functional agent or gatekeeper, the drug release rate can be delayed by loading only a high amount of drug, while it can be accelerated at low loadings. Korsmeyer-Peppas model based on Fickian diffusion effectively explained the release behavior of DOX from MT-HMSN/DOX in both acidic and neutral pH media with the correlation coefficient greater than 0.98, supporting that MT-HMSN can also exhibit a controlled release depending on the loading quantity.</p></div>","PeriodicalId":660,"journal":{"name":"Journal of Porous Materials","volume":"33 2","pages":"435 - 446"},"PeriodicalIF":3.2,"publicationDate":"2025-11-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147743702","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":"Microwave-assisted synthesis of A novel modified polyacrylonitrile fiber and its adsorption performance for Cr(Ⅵ)","authors":"Jionghui Li,&nbsp;Weiquan Zhang,&nbsp;Qing Chen,&nbsp;Chunhua Xiong","doi":"10.1007/s10934-025-01889-5","DOIUrl":"10.1007/s10934-025-01889-5","url":null,"abstract":"<div><p>Polyacrylonitrile-2-aminopyridine (PAN-TAP) is a novel chelating fiber rapidly prepared by microwave-assisted synthesis method. The optimal synthesis conditions are microwave power of 800 W, reaction at 140 ℃ for 20 min. Fourier transform infrared spectroscopy (FT-IR) shows nucleophilic addition reaction between cyanide and 2-aminopyridine in PAN fibers. thermogravimetric analysis (TGA) shows that the synthesized material is stable within 200 ℃. Scanning electron microscopy (SEM) shows that synthetic materials have a larger diameter and a very rough surface compared to PAN fibers. The synthesized materials were also characterized by elemental analysis, energy dispersive X-ray spectroscopy (EDS), X-ray diffraction (XRD) and X-ray photoelectron spectroscopy (XPS). Meanwhile, the adsorption characteristics and mechanism of PAN-TAP for Cr(Ⅵ) were evaluated. When the pH of the solution is 2, the adsorption capacity of Cr (Ⅵ) is the highest and it has good separation ability, with a maximum separation coefficient of <i>β</i>_<i>Cr/Ni</i> = 357.75. The adsorption process conforms to the Langmuir isothermal adsorption model and the pseudo-second-order kinetic model, indicating that the adsorption mechanism is a chemisorption of monolayer adsorption. Cr(Ⅵ) is reduced to Cr(Ⅲ) by the amino groups on the fiber and then adsorbed. The maximum theoretical adsorption capacity is 287.1 mg/g (at 298 K), and the adsorption equilibrium can be reached within 1 h. The thermodynamic parameter Δ<i>H</i> &gt; 20 kJ·mol^− 1 indicates that adsorption is a spontaneous endothermic process. PAN-TAP fibers can be eluted with hydrochloric acid and reused. Overall, PAN-TAP is a cost-effective and rapid adsorbent, which has broad application prospects for the removal of Cr(Ⅵ) in water.</p></div>","PeriodicalId":660,"journal":{"name":"Journal of Porous Materials","volume":"33 2","pages":"447 - 467"},"PeriodicalIF":3.2,"publicationDate":"2025-11-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147743690","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":"Fine-tuning the aperture size of Co-ZIF-67 via dehydration, demethylation, and Co-Zn hybridization","authors":"Hu Sik Kim,&nbsp;Ga Eon Song,&nbsp;Hyeon Uk Choo,&nbsp;Woo Taik Lim","doi":"10.1007/s10934-025-01882-y","DOIUrl":"10.1007/s10934-025-01882-y","url":null,"abstract":"<div><p>Co-ZIF-67 (Zeolitic Imidazolate Framework) is a porous material in which cobalt (Co) metal ions are tetrahedrally coordinated with organic ligands. It exhibits unique properties by combining the advantages of both zeolites and metal–organic frameworks (MOFs), including high surface area and structural tunability. Due to these characteristics, Co-ZIF-67 is widely studied for applications such as gas separation, making it an important target for research. A large single crystal of Co-ZIF-67 was successfully synthesized using a simple solvothermal method. Dehydration and demethylation of the 2-methylimidazole in Co-ZIF-67, as well as altering the central metal, change the aperture size and affect the types of gases that can be separated. Therefore, dehydrated, demethylated, and hybrid Co-ZIF-67s containing cobalt (Co) and zinc (Zn) were prepared in this work. These crystal structures were analyzed using single-crystal synchrotron X-ray diffraction techniques. In the untreated Co-ZIF-67 single crystal, water molecules were located at two sites opposite the 6-ring, with eight molecules per unit cell. Heat treatment at 673 K completely removed the water molecules without loss of crystallinity, and demethylation began at 683 K. As the temperature increased, the number of carbon atoms at C3 per unit cell decreased, indicating the gradual removal of methyl groups. Measurement of the 6-ring aperture size revealed that heat-treated crystals had larger aperture sizes compared to untreated Co-ZIF-67 (crystal 1). However, at 753 K, single-crystal X-ray diffraction data could not be obtained due to the loss of Co-ZIF-67 crystallinity. In the case of Co/Zn-ZIF-67 single crystals synthesized with different molar ratios, the structures were similar to those of Co-ZIF-67 single crystals, with Co exhibiting higher occupancy rates compare to Zn. Additionally, the Co/Zn-ZIF-67 demonstrated smaller unit cell parameters compared to Co-ZIF-67 (crystal 1). Consequently, the aperture size of the Co/Zn-ZIF-67 with tuning of the amount of Co and Zn was smaller than that of Co-ZIF-67 (crystal 1).</p></div>","PeriodicalId":660,"journal":{"name":"Journal of Porous Materials","volume":"33 2","pages":"421 - 433"},"PeriodicalIF":3.2,"publicationDate":"2025-11-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s10934-025-01882-y.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147743680","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":"Ball-milling synthesis of SBA-15-Tuned CuO supported Au NPs for efficient glycerol oxidation to dihydroxyacetone","authors":"Weidong Xie,&nbsp;Xingyu Zhang,&nbsp;Jiali Huang,&nbsp;Yuewen Chen,&nbsp;Hai Liu,&nbsp;Zhile Xiong,&nbsp;Yimin Wang,&nbsp;Xiya Zhang","doi":"10.1007/s10934-025-01881-z","DOIUrl":"10.1007/s10934-025-01881-z","url":null,"abstract":"<div><p>Catalytic conversion of glycerol to dihydroxyacetone (DHA) has significant advantages, including abundant raw material sources (as glycerol is a by-product of biodiesel) and high added value of the product. Although CuO-based catalysts are currently the most widely used materials in this field, existing catalyst modification strategies are insufficient, and their activity still needs to be improved. In this work, for the first time, a template-induced Au/CuO catalyst with zeolite molecular sieve SBA-15 as the template was prepared via the mechanochemical method, achieving a new breakthrough in the performance of CuO catalysts. The obtained catalyst is characterized by the fact that the introduction of SBA-15 alters the morphology and physical properties of CuO, resulting in smaller gold nanoparticles (Au NPs) and a stronger interaction between the active centers and the support. Under the preparation conditions of a ball-to-powder ratio of 1:15, a milling time of 0.5 h, addition of 0.4 g SBA-15, and an Au loading of 1%, and under the reaction conditions of 100 ℃, a glycerol-to-Au ratio of 100:1, and a reaction time of 2 h, the catalyst achieves a glycerol conversion of 97.65% and a DHA selectivity of 90.47%, outperforming most catalysts reported so far. This work provides new insights for the efficient modification of CuO-based catalysts and the development of high-performance catalytic materials.</p></div>","PeriodicalId":660,"journal":{"name":"Journal of Porous Materials","volume":"33 1","pages":"373 - 385"},"PeriodicalIF":3.2,"publicationDate":"2025-11-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146090992","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":"Surfactant-Assisted intercalation of quintozene into layered zinc hydroxide nitrate for controlled release applications","authors":"Sharifah Norain Mohd Sharif,&nbsp;Norhayati Hashim,&nbsp;Illyas Md Isa,&nbsp;Maizatul Najwa Jajuli,&nbsp;Norlaili Abu Bakar,&nbsp;Wan Rusmawati Wan Mahamod,&nbsp;Mohamad Syahrizal Ahmad,&nbsp;Mohamad Idris Saidin,&nbsp;Tumirah Khadiran,&nbsp; Suyanta","doi":"10.1007/s10934-025-01868-w","DOIUrl":"10.1007/s10934-025-01868-w","url":null,"abstract":"<div><p>In this research, a fungicide, namely quintozene (QZ) fungicide, was successfully intercalated into zinc hydroxide nitrates (ZHN) with sodium dodecyl sulphate (SDS) surfactant by using a co-precipitate and direct reaction method to form new nanomaterials, ZHN-SDS-QZ. PXRD analysis indicated the successful intercalation with the basal spacing of 33.6 Å. The presence of QZ fungicides in the interlayer space of zinc layered hydroxide is also supported by FTIR and elemental analysis. The thermal analysis confirmed that ZHN-SDS-QZ nanomaterials had good thermal stability compared to the pure QZ. The intercalation of QZ leads to important changes in the morphology, porosity and surface area. Nitrogen adsorption-desorption isotherms reveal that the adsorption isotherm types according to BET analysis for ZHN–SDS are Type IV, while for ZHN-SDS-QZ are Type III. The release into aqueous solution of Na₃PO₄ and Na₂CO₃ was governed by pseudo-second order, while for the aqueous solution of NaCl was the Fickian diffusion model. Overall, this nanomaterial is a promising material to develop pest control solutions in the agriculture sector that are effective, yet promote minimal risk to human health and the environment, ensuring food security, safety and ecological sustainability. This study demonstrates that ZHN-SDS-QZ exhibits enhanced stability and controlled release behaviour, making it a promising nanocarrier for sustainable agrochemical delivery.</p></div>","PeriodicalId":660,"journal":{"name":"Journal of Porous Materials","volume":"33 1","pages":"401 - 418"},"PeriodicalIF":3.2,"publicationDate":"2025-11-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s10934-025-01868-w.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146090998","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":"One-pot synthesis of polyhydroquinolines using GO/Fe3O4/ZIF-67 magnetic nanocatalyst","authors":"Reyhaneh Zargartalebi,&nbsp;Zahra Rafiee","doi":"10.1007/s10934-025-01885-9","DOIUrl":"10.1007/s10934-025-01885-9","url":null,"abstract":"<div><p>A new magnetic nanocomposite, GO/Fe₃O₄/ZIF-67 was constructed and analyzed using various methods such as FT-IR, XRD, FE-SEM, EDS, STA, and BET. The integration of GO/Fe₃O₄ and ZIF-67 has been developed through a straightforward procedure to indicate the benefits of both materials and to demonstrate their synergistic effects. The fabricated nanocomposite is utilized as a novel reusable magnetical nanocatalyst for the production of polyhydroquinoline derivatives. The corresponding products were fabricated in short times (5–20 min.) without the use of solvent with outstanding yields (87–97%). The experiments presented multiple advantages, including exceptional yields, quick reaction time, and straightforward separation. The present method was clean and convenient, requiring just 10 mg of GO/Fe₃O₄/ZIF-67 to carry out the reaction. The findings indicate the development of a promising nanocatalyst with outstanding performance. Additionally, because of the nanocomposite’s magnetic separability and excellent stability, GO/Fe₃O₄/ZIF-67 can be retrieved and reused multiple times with minimal decrease in effectiveness.</p></div>","PeriodicalId":660,"journal":{"name":"Journal of Porous Materials","volume":"33 1","pages":"359 - 372"},"PeriodicalIF":3.2,"publicationDate":"2025-11-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146090945","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":"Mesoporous yarn ball-like MgWO4 for cyclohexanone B-V oxidation to ε-Caprolactone","authors":"Ke Chen,&nbsp;Jun Zhang,&nbsp;Dongxiang Shi,&nbsp;Zhiwei Zhou,&nbsp;Hui Xie,&nbsp;Wenliang Wu","doi":"10.1007/s10934-025-01890-y","DOIUrl":"10.1007/s10934-025-01890-y","url":null,"abstract":"<div><p>A novel mesoporous magnesium tungstate (MgWO₄) catalyst with a yarn ball-like morphology using cetyltrimethylammonium bromide (CTAB) as a structure-directing agent was pioneered the design and successfully prepared via a solvothermal method in this work, and the catalytic performance was subsequently investigated in the Baeyer-Villiger (B-V) oxidation of cyclohexanone to ε-caprolactone within an O₂/benzaldehyde co-oxidation system. The physicochemical and structural properties of MgWO₄ were thoroughly characterized using a suite of analytical techniques, including X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), Nitrogen adsorption-desorption isotherms, X-ray photoelectron spectroscopy (XPS), Fourier-transform infrared spectroscopy (FT-IR), Inductively coupled plasma (ICP) and Hammett indicator methods. The engineered pore structure can enhance oxygen adsorption capacity to promote the oxidation of cyclohexanone and alleviate mass transfer constraints. The Y-MgWO₄(22%) catalyst, exhibiting a 1.9-fold increase in specific surface area, a 3.1-fold larger pore volume, and moderate basicity, achieved catalytic activity approximately 179% higher than the CTAB-free MgWO₄ substrate. The catalyst maintained stable performance over more than eight reuse cycles, indicating its viability for industrial application.</p></div>","PeriodicalId":660,"journal":{"name":"Journal of Porous Materials","volume":"33 1","pages":"387 - 399"},"PeriodicalIF":3.2,"publicationDate":"2025-11-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146091000","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":"Ceramic fibrous aerogels with hierarchical structure for noise reduction and fire-resistance","authors":"Mengmeng Yang,&nbsp;Wei Hu,&nbsp;Lihao Liu,&nbsp;Min Li,&nbsp;Shouling Wang,&nbsp;Rongbing Zhai,&nbsp;Zhaofeng Chen","doi":"10.1007/s10934-025-01884-w","DOIUrl":"10.1007/s10934-025-01884-w","url":null,"abstract":"<div><p>The rapid development of industry and transportation has given rise to serious noise pollution, which posing serious threats to the social economy and human physical and mental health. However, commonly existing fiber sound-absorbing materials are difficult to dissipate noise at low frequencies due to their single-pore structure. Herein, a hierarchical pore-structured elastic ceramic fibrous aerogel with fire-resistance was successfully designed and constructed through directional freeze-casting technology. The self-assembled nano-network and hierarchical pore structure by ceramic nanofiber improved noise injection and acoustic contact area. The noise reduction coefficient of the obtained ceramic fibrous aerogel reaches 0.49, and the maximum value of the sound absorption coefficient can be close to 1. In addition, the hydrophobic groups of the binder endow the fiber aerogel with superhydrophobic properties and bond adjacent fibers together to prevent slipping during deformation, imparting it with excellent compression resilience. Moreover, this ceramic aerogel can resist temperatures up to 600 °C, exhibiting excellent compression resilience under the flame of an alcohol lamp, safe guarding building occupants. The successful construction of lightweight, hydrophobic, fire-resistant gradient structure aerogel will provide a new prospect for the upgrading of the next generation noise absorber.</p></div>","PeriodicalId":660,"journal":{"name":"Journal of Porous Materials","volume":"33 1","pages":"349 - 358"},"PeriodicalIF":3.2,"publicationDate":"2025-11-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146090944","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}