Microporous and Mesoporous Materials最新文献

{"title":"Synthesis of spherical mesoporous silica beads with tunable size, stiffness and porosity","authors":"M. Milani ,&nbsp;K. Ahmad ,&nbsp;E. Cavalletti ,&nbsp;C. Ligoure ,&nbsp;L. Cipelletti ,&nbsp;M. Kongkaew ,&nbsp;P. Trens ,&nbsp;L. Ramos","doi":"10.1016/j.micromeso.2025.113534","DOIUrl":"10.1016/j.micromeso.2025.113534","url":null,"abstract":"<div><div>We present an innovative template-free water-based sol–gel method to produce uniform mesoporous silica beads of millimeter size, which have tunable size, stiffness and porosity, and could be used for adsorption applications. Our protocol exploits an in-situ enzymatic reaction to produce spherical beads of hydrogel from a charge-stabilized suspension of silica nanoparticles confined in a millimetric drop suspended in a non-miscible oil. Once the gelation step is complete, the spherical bead of gel is cleaned from oil and deposited onto a hydrophobic surface and let dry. Separating the gelation to the drying steps ensures a spatially uniform gel and allows us to perform a solvent exchange before drying. For all beads, we observe a crack-free drying process leading to the formation of stiff quasi-spherical beads with diameter in the range 1 to 5 mm and Young modulus in the range <span><math><mrow><mrow><mo>(</mo><mn>0</mn><mo>.</mo><mn>1</mn><mo>−</mo><mn>2</mn><mo>)</mo></mrow><mspace></mspace><mi>GPa</mi></mrow></math></span> and narrow pore size distribution, centered around 10 to <span><math><mrow><mn>25</mn><mspace></mspace><mi>nm</mi></mrow></math></span> depending on the experimental conditions. Finally, to demonstrate the potentiality of these materials, we graft on the bead surface aminosilane molecules, and quantify their CO<span><math><msub><mrow></mrow><mrow><mn>2</mn></mrow></msub></math></span> adsorption efficiency. Overall, the production method we have developed is simple, readily adaptable, and offers promising materials for adsorption, storage, catalysis and chromatography.</div></div>","PeriodicalId":392,"journal":{"name":"Microporous and Mesoporous Materials","volume":"387 ","pages":"Article 113534"},"PeriodicalIF":4.8,"publicationDate":"2025-02-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143372305","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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":"Influence of the amount of sulfur supported on sustainable ordered mesoporous carbons from tannin for high-performance electrodes in lithium‒sulfur batteries","authors":"Rubens Lucas de Freitas Filho ,&nbsp;Keiliane Silva Santos ,&nbsp;Rayane Cristian Ferreira Silva ,&nbsp;Lucas Coelho de Oliveira ,&nbsp;Igor Bolonezi Gomes ,&nbsp;Fernanda Gabrielle Gandra ,&nbsp;Luan Teixeira Cardoso ,&nbsp;Danielle Diniz Justino ,&nbsp;Paula Sevenini Pinto ,&nbsp;Ana Paula de Carvalho Teixeira ,&nbsp;João Paulo Campos Trigueiro ,&nbsp;Paulo Fernando Ribeiro Ortega ,&nbsp;Rodrigo Lassarote Lavall ,&nbsp;Glaura Goulart Silva","doi":"10.1016/j.micromeso.2025.113530","DOIUrl":"10.1016/j.micromeso.2025.113530","url":null,"abstract":"<div><div>Technological options for batteries are currently in great demand, and among them, lithium-sulfur batteries (Li-S) are promising. The low electrical conductivity of sulfur, the large volume variation, and the formation of soluble lithium polysulfides are the main challenges facing Li-S. This work proposes addressing these challenges by using sustainable ordered mesoporous carbon as a support for the sulfur in the cathode. The study showed how different contents of incorporated sulfur impact the electrochemical properties. Mesoporous carbons were obtained from tannins with a distribution of micro- and mesopores, and after the introduction of sulfur, the micropores were occupied. The sulfur contents in the MCS0.7, MCS1, and MCS2 composites obtained from the TG curves were 29 wt%, 39 wt%, and 61 wt%, respectively. XPS results indicated that the presence of S₈ atoms infiltrated into the mesopores, and in smaller quantities, S₂_{_-}₄ atoms infiltrated into the interior of the micropores due to spatial constraints. The specific capacity at 0.1C was 1033 mA h g_S⁻¹ for MCS0.7, 830 mA h g_S⁻¹ for MCS1, and 666 mA h g_S⁻¹ for MCS2. The capacity values are greater for composites with lower sulfur contents, which favors charge transfer. This behavior can be explained by considering that a greater fraction of the elemental sulfur is in direct contact with the surface of the carbon matrix in these cases, as observed by the characterization of the materials. Furthermore, the MCSs showed an excellent rate capability due to their mesoporous structure. MCS1 was chosen for the cyclic stability tests, and a coulombic efficiency close to 99 % was observed during the test. The performance of these materials is among the best for Li-S batteries based on biomass-derived carbon. The results highlight the great potential of sustainable mesoporous carbon materials from biomass as efficient and environmentally friendly components for high-performance lithium‒sulfur batteries.</div></div>","PeriodicalId":392,"journal":{"name":"Microporous and Mesoporous Materials","volume":"387 ","pages":"Article 113530"},"PeriodicalIF":4.8,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143163913","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}

{"title":"Enhanced ion pairing of calcium, zinc, and lanthanum with acetate in silica nanopores","authors":"Bidemi T. Fashina ,&nbsp;Anthony P. Baldo ,&nbsp;Heath Watts ,&nbsp;Kevin Leung ,&nbsp;James D. Kubicki ,&nbsp;Anastasia G. Ilgen","doi":"10.1016/j.micromeso.2025.113538","DOIUrl":"10.1016/j.micromeso.2025.113538","url":null,"abstract":"<div><div>The well-established intrinsic properties and reactivity of molecules in aqueous environments are influenced when confined in pores, cages, channels, or slits. Nanoconfined chemical systems are common in the environment, such as in soils and sedimentary rocks. In this study, the impact of nanoscale confinement on the ion pairing involving Ca²⁺, Zn²⁺, and La³⁺ with CH₃COO⁻ anions was investigated. The concentrations of free (uncomplexed) CH₃COO⁻ and the Mⁿ⁺–CH₃COO⁻ species (acetate complexed with a cation, M = Ca²⁺, Zn²⁺, or La³⁺) were quantified using Raman spectroscopy performed on bulk aqueous solutions and on the same solutions confined within 4 nm amorphous silica nanopores. The calculated equilibrium constants increased by 0.09, 1.70, and 2.5 units for Ca²⁺–, Zn²⁺–, and La³⁺–CH₃COO⁻, respectively, when compared to analogous constants measured for bulk solutions. These shifts in the equilibrium constants correspond to the free energy of formation of contact ion pairs in confinement becoming more favorable by 0.11, 0.77, and 0.40 kJ⸳mol⁻¹ compared to bulk solution phase. In support of the experimental findings, molecular dynamics and density functional theory calculations predict the stabilization of contact ion pairs in confined systems compared to bulk aqueous environment. The observed increase in the equilibrium constants of contact ion pairing is attributed to the lower desolvation cost in the silica nanopore compared to unconfined aqueous solution.</div></div>","PeriodicalId":392,"journal":{"name":"Microporous and Mesoporous Materials","volume":"387 ","pages":"Article 113538"},"PeriodicalIF":4.8,"publicationDate":"2025-01-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143163917","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}

{"title":"ZSM-5/PEG/DOX nanocarrier for pH-responsive doxorubicin release: Kinetic, isothermal, and cytotoxic studies","authors":"Mahin Broukanlou ,&nbsp;Seyed Ali Hosseini ,&nbsp;Yaghub Pazhang","doi":"10.1016/j.micromeso.2025.113531","DOIUrl":"10.1016/j.micromeso.2025.113531","url":null,"abstract":"<div><div>The application of ZSM-5/PEG nanoparticles as a drug carrier for the adsorption and release of doxorubicinas an anti-cancer drug was investigated. ZSM-5 zeolite was pegylated at different ratios, and ZSM-5/PEG with a mass ratio of (10:4) exhibited the best drug loading and loading efficiency of 83 % (14 mg/g). The carrier showed pH-responsive behaviour, releasing 65 % of the drug at pH 5.6 and 21 % at pH 7.4. The differential scanning calorimetry (DSC) approved the thermal stability of ZSM-5/PEG carrier under body conditions. The absorption models revealed that drug absorption onto ZSM-5/PEG followed the Freundlich model (<span><math><mrow><msup><mi>R</mi><mn>2</mn></msup></mrow></math></span> = 0.93), indicating multilayered absorption of DOX on ZSM-5/PEG nanoparticles. Moreover, the results of kinetic studies confirmed that among the different kinetic models, the Korsmeyer-Peppas model effectively described the release behaviour from the carrier. The values of n and K for the Korsmeyer-Peppas model resulted in 0.22 and 0.36, respectively, indicating that doxorubicin release from ZSM-5/PEG nanocarrier had a slow releasing rate and followed Fick's law. MTT assay showed that loading the DOX on the ZSM-5/PEG nanoparticles increased their cytotoxic effects on the HCT-116 cell line by almost 10 times with the lowest IC₅₀ values(38.1, 10.4, and 2.33 μg/ml for 24 h, 48 h, and 72 h after treatment, respectively). The study found that ZSM-5/PEG/DOX has the potential to treat cancer as a pH-sensitive and slow-releasing drug.</div></div>","PeriodicalId":392,"journal":{"name":"Microporous and Mesoporous Materials","volume":"387 ","pages":"Article 113531"},"PeriodicalIF":4.8,"publicationDate":"2025-01-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143163920","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}

{"title":"Amino-functionalized yolk-shell magnetic silica nanoparticles for the selective removal of heavy metal ions","authors":"Haiyu Li ,&nbsp;Yuqian Jia ,&nbsp;Yuan Chen ,&nbsp;Qingyang Ye ,&nbsp;Lichen Xian ,&nbsp;Jieshu Qian","doi":"10.1016/j.micromeso.2025.113535","DOIUrl":"10.1016/j.micromeso.2025.113535","url":null,"abstract":"<div><div>Heavy metals in natural waters exist in both anionic and cationic forms, posing significant risks to ecological safety and human health. However, the selective and efficient removal of these ions remains a considerable challenge. In this study, we synthesized amino-functionalized yolk-shell magnetic silica nanocomposites and evaluated their adsorption performance for heavy metal anions and cations. The nanocomposites exhibited high adsorption capacities of 210 mg/g for Pb(II) and 57.8 mg/g for Cu(II) cations, while the protonated nanocomposites achieved an adsorption capacity of 52.6 mg/g for As(V) anions. Notably, the nanocomposites maintained strong specific adsorption capabilities for heavy metal ions even in the presence of competing ions, along with excellent reusability and operational convenience. This work presents a methodically designed strategy for functionalizing magnetic solid nano-adsorbents for the selective removal of heavy metal ions from water, offering new insights into the potential applications of yolk-shell nanoparticles.</div></div>","PeriodicalId":392,"journal":{"name":"Microporous and Mesoporous Materials","volume":"387 ","pages":"Article 113535"},"PeriodicalIF":4.8,"publicationDate":"2025-01-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143163916","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}

{"title":"The hierarchical porous material HP-UiO-NH2-X was prepared by an environmentally friendly method using water as a modulator and used for adsorption of ofloxacin","authors":"Qingxin Lu,&nbsp;Jiaxin Zheng,&nbsp;Yaoyao Zhang,&nbsp;Wenjuan Lu","doi":"10.1016/j.micromeso.2025.113532","DOIUrl":"10.1016/j.micromeso.2025.113532","url":null,"abstract":"<div><div>Hierarchical Porous Metal-Organic Frameworks (HP-MOFs) are widely recognized for their broad applications in adsorption, owing to their structural tunability and diverse pore types. However, existing synthesis methods often face challenges, including prolonged synthesis times, high energy consumption, and complex procedures. In this study, we utilized water, an environmentally friendly modulator, to successfully synthesize hierarchical porous UiO-series materials via a one-step solvothermal method. HP-UiO-66-NH₂-X with varied pore structures was synthesized by adjusting the H₂O/Zr⁴⁺ ratio in the precursor. The adsorption performance of the resulting materials for ofloxacin (OFL) was subsequently evaluated. Characterization results demonstrated that this approach effectively modulated the coordination between organic ligands and metal centers, leading to ligand defects and the precise tuning of the UiO-66-NH₂ framework's pore structure. When the H₂O/Zr⁴⁺ ratio was 22.2 (M/M), the synthesized HP-UiO-66-NH₂-2 material exhibited optimal adsorption performance (233.1 mg/g) and excellent selectivity. The adsorption process involved multiple interactions, including electrostatic interactions, pore filling, metal coordination, hydrogen bonding, and π-π interactions. In adsorption-desorption cycling tests, HP-UiO-66-NH₂-2 maintained over 90 % removal efficiency after 10 cycles, demonstrating its excellent reusability and stability. Therefore, this study proposes an environmentally friendly and simplified synthesis strategy, successfully producing HP-UiO-66-NH₂-X materials with remarkable performance in removing OFL. This approach offers a novel perspective for improving the performance and applicability of environmentally friendly materials.</div></div>","PeriodicalId":392,"journal":{"name":"Microporous and Mesoporous Materials","volume":"388 ","pages":"Article 113532"},"PeriodicalIF":4.8,"publicationDate":"2025-01-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143378206","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}

{"title":"Development of mesoporous biocatalysts synthesized from a biomass surfactant for flavorings production","authors":"Germán Carrillo,&nbsp;Eliana G. Vaschetto,&nbsp;Gabriel O. Ferrero,&nbsp;Griselda A. Eimer","doi":"10.1016/j.micromeso.2025.113536","DOIUrl":"10.1016/j.micromeso.2025.113536","url":null,"abstract":"<div><div>Obtaining flavorings industrially requires extreme conditions such as high temperatures and pressures, operation of toxic solvents, and use of acids as catalysts. Given these limitations, more eco-friendly alternatives like enzymatic catalysts are being investigated. However, the enzymes stability in organic reagents and reuse are the main drawbacks; therefore, the use of immobilization techniques on novel inorganic supports would allow combining the enzymatic selectivity and the properties of these matrices to increase their catalytic performance. In the present work, the transesterification reaction of vinyl acetate with isoamyl alcohol to produce isoamyl acetate was conducted at 40 °C and atmospheric pressure using a mesoporous biocatalyst synthesized from a biomass-derived molding agent. The synthesized materials were characterized by N₂ adsorption and desorption isotherm, Transmission Electron Microscopy (TEM), Scanning Electron Microscopy (SEM) and Infrared Spectroscopy (FT-IR). For the biocatalyst synthesis, the enzyme-support contact times and the enzyme loading were evaluated. The best catalytic performance was obtained with a material prepared with 96 h of immobilization and with a theoretical loading of 400 mg_lipase/gsupport. High vinyl acetate conversion (86 %) and isoamyl acetate yields (62 %) were achieved at 40 °C after 20 h of reaction. The results suggest that the lipases immobilization on renewable mesoporous silica offers a promising alternative route for the sustainable fragrances production under mild operating conditions.</div></div>","PeriodicalId":392,"journal":{"name":"Microporous and Mesoporous Materials","volume":"387 ","pages":"Article 113536"},"PeriodicalIF":4.8,"publicationDate":"2025-01-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143162775","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}

{"title":"Influence of cation exchange on the selective CO2 adsorption performance of Zeolite-Y over CH4 and N2","authors":"Geetanjali Bhati,&nbsp;Naga Phani Sai Kumar Dharanikota,&nbsp;Ramagopal V.S. Uppaluri,&nbsp;Bishnupada Mandal","doi":"10.1016/j.micromeso.2025.113537","DOIUrl":"10.1016/j.micromeso.2025.113537","url":null,"abstract":"<div><div>Carbon dioxide capture from a post-combustion process is challenging and henceforth adsorbents with high adsorption capacities are required. For such applications, cation-loaded zeolites offer significant carbon dioxide capture potential. In this article, the cations (Li⁺, Na⁺, and K⁺) were loaded onto Zeolite-Y with the wet-impregnation method and the synthesized adsorbents were characterized using FTIR, XRD, BET, FETEM, and XPS, and were analyzed with the gravimetric adsorption system. The effect of cation, pressure, and temperature was particularly targeted and assessed. Accordingly, for a 5 wt% cation loading, the CO₂ adsorption capacity reduced from 2.89 to 0.79 mmol g⁻¹ for the temperature alteration from 303 to 343 K, highlighting the impact of temperature on adsorption performance for the synthesized adsorbents. The adsorption data was analyzed with two distinct modeling approaches for the visualization of the adsorption behavior. Additionally, the Ideal Adsorbed Solution Theory (IAST) has been applied to determine the selectivity of the cation-loaded zeolites for CO₂ with respect to other gases. The analysis provided valuable insights into the adsorbents’ potential for gas separation applications. Among the synthesized adsorbents, KYZC with 10 wt% potassium loading exhibited the highest CO₂ adsorption capacity of 2.89 mmol g⁻¹ at 303 K and 1 bar, which was higher than NaYZC (2.74 mmol g⁻¹), LiYZC (2.37 mmol g⁻¹), and HYZC (2.19 mmol g⁻¹). KYZC also demonstrated superior selectivity for CO₂/CH₄ (219.59) and CO₂/N₂ (140.62) gas mixtures compared to the other adsorbents, highlighting its potential for gas separation applications. The study confirmed that the Zeolite-Y was loaded with alkali metal cations and has been effective for carbon dioxide capture. Adsorbents for CO₂ capture in real-world industrial processes have been developed with the mentioned simple yet effective methodology.</div></div>","PeriodicalId":392,"journal":{"name":"Microporous and Mesoporous Materials","volume":"387 ","pages":"Article 113537"},"PeriodicalIF":4.8,"publicationDate":"2025-01-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143163921","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}

{"title":"Advanced Ni(II)-Doped -ZIF-8 Nanoscale crystals: A breakthrough in efficient dihydropyrimidine synthesis and catalyst reusability with comprehensive structural characterization","authors":"Dara Muhammad Aziz,&nbsp;Dilshad Karim Hama","doi":"10.1016/j.micromeso.2025.113533","DOIUrl":"10.1016/j.micromeso.2025.113533","url":null,"abstract":"<div><div>Nickel(II) ions (Ni(II)) doped within the zinc-based metal-organic framework ZIF-8 have been demonstrated as highly effective heterogeneous catalysts for the three-component Biginelli condensation reaction. The Ni(10)-ZIF-8 catalyst achieved impressive yields of 96.16 % in ethanol within 100 min, demonstrating excellent selectivity under mild reaction conditions. The incorporation of Ni(II) ions into the ZIF-8 framework was accomplished via a room-temperature synthesis method, with optimal catalytic performance observed at a 10 % Ni doping level. The catalyst was characterized using XRD, SEM, FTIR, and TGA, confirming its high crystallinity and structural stability. Ni(10)-ZIF-8 displayed remarkable reusability, maintaining its catalytic efficiency over five consecutive cycles, with only a 20 % decrease in activity. These findings indicate that Ni(10)-ZIF-8 is not only a highly efficient and sustainable catalyst but also a promising candidate for large-scale applications in green chemistry. Additionally, the study highlights the impact of Ni doping on the catalytic efficiency and the importance of optimizing doping levels for enhanced performance.</div></div>","PeriodicalId":392,"journal":{"name":"Microporous and Mesoporous Materials","volume":"387 ","pages":"Article 113533"},"PeriodicalIF":4.8,"publicationDate":"2025-01-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143162774","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}

{"title":"Insight into the adsorption behaviors of siloxane on activated carbon fibers","authors":"Linhong Wen ,&nbsp;Jiahao Liu ,&nbsp;Junhao Wang ,&nbsp;Mengyan Wang ,&nbsp;Jianxiao Yang ,&nbsp;Yue Liu ,&nbsp;Xin Zhang","doi":"10.1016/j.micromeso.2025.113527","DOIUrl":"10.1016/j.micromeso.2025.113527","url":null,"abstract":"<div><div>A series of activated carbon fibers (ACFs) are employed to evaluate the adsorption capacity of octamethylcyclotetrasiloxane (D4). The pore structure and surface chemistry properties are well characterized, and the effects on D4 adsorption are explored. The results suggest that the viscose-based ACFs exhibit the highest dynamic adsorption capacity of 933 mg/g and static adsorption capacity of 656 mg/g at 25 °C. In particular, the D4 adsorption capacity on ACFs is related to the micropore structure of ACFs. In addition, the phenolic hydroxyl group of ACFs also play an important role in the adsorption process. Furthermore, the adsorption behavior obeyed the Freundlich model and that the diffusion of D4 in the pores rather than external diffusion is the rate-determining step during the mass transfer process at low temperature and low D4 concentration. More importantly, ACFs have abundant active sites, and the adsorption kinetics are dominated by adsorption onto active sites.</div></div>","PeriodicalId":392,"journal":{"name":"Microporous and Mesoporous Materials","volume":"387 ","pages":"Article 113527"},"PeriodicalIF":4.8,"publicationDate":"2025-01-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143162777","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}