Silicon最新文献

{"title":"Investigation of Solidification Behavior and Strengthening in Al-Si Based Hybrid Composites Fabricated Through In-Situ Stir Casting Route","authors":"Sudhir Ranjan,&nbsp;Pradeep Kumar Jha","doi":"10.1007/s12633-025-03280-0","DOIUrl":"10.1007/s12633-025-03280-0","url":null,"abstract":"<div><p>The development of Al-Si based composites are widely recognized as an advance engineering material for potential light weight applications in automotive and aerospace industries, enhancing fuel efficiency and sustainability. The present study aims to develop and investigate the microstructure, solidification kinetics and strengthening mechanism for Al-12wt%Si-(TiB₂ + Al₂O₃) hybrid composite with 7.5%, 10.5%, 12.5% and 15% weight percentage of reinforcements. Processing parameters were optimized by calculating the molar Gibbs free energy and reinforcements were synthesized via salt-metal reactions in the stir casting method. The composite exhibited bimodal TiB₂ particles at nano and microscale and Al₂O₃ particles at nanoscale clustered with TiB₂. Addition of the reinforcements to the Al-Si melt alters the microstructure from globular eutectic to divorced eutectic with the diffusion and interface-controlled growth as governed by the Avrami kinetics. At a constant cooling rate of 127.35 °C/s, the grain size refinement was governed by the increasing percentage of TiB₂ particles. Increase in the reinforcement percentage from 7.5% to 15% refined the TiB₂ and Al₂O₃ particle size from 0.75 µm to 0.54 µm and 0.42 µm to 0.31 µm respectively. This enables significant contribution of the Orowan strengthening mechanism (11.32%-17.70%) leading to improvement in the tensile strength from 214.57 MPa to 309.83 MPa. Coefficient of thermal expansion mismatch was observed to be the key strengthening mechanism with a contribution of 31.44%-42.16%. Fractographic analysis revealed a complex fracture surface with a mixed ductile–brittle failure mode, featuring dimples and large voids indicative of ductile behaviour, alongside cracked silicon particles, highlighting brittle fracture.\u0000</p></div>","PeriodicalId":776,"journal":{"name":"Silicon","volume":"17 6","pages":"1381 - 1402"},"PeriodicalIF":2.8,"publicationDate":"2025-03-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143918999","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":"Acid and Alkaline Activations of Raw Laterites Cured at Ambient Temperature: A Comparative Study","authors":"Monique Michèle Ngo Bitty,&nbsp;Jean Baenla,&nbsp;Vivien Igor Banzouzi Samba,&nbsp;Jean Jacques Madiba Mboka,&nbsp;Marchand Joseph Manga Dika,&nbsp;Antoine Elimbi","doi":"10.1007/s12633-025-03279-7","DOIUrl":"10.1007/s12633-025-03279-7","url":null,"abstract":"<div><p>This study assesses comparison between acid and alkaline activations of powders of two raw laterite samples denoted as B and P respectively for Compressed Earth Blocks (CEB) issue. For this purpose, phosphoric acid solutions of P₂O₅ / H₂O molar ratio 0.06, 0.09, 0.12 and 0.15 and alkaline solutions in which NaOH molarities were 6,8,10 and 12 M were used as activators. Depending on both the raw materials and activated products, the following analytical techniques and characteristics were performed: chemical and thermal analyses, FTIR spectroscopy, XRD, SEM, particle size distribution, plasticity, linear shrinkage, flexural strength, and durability. Raw laterite (B) at the laterization stage was found to be more reactive than at the kaolinization stage (P) in both media. No matter the lateritic sample, increase in either NaOH concentration or P₂O₅ / H₂O molar ratios caused high dissolution of reactive entities. However, increase in flexural strength (3.19 to 5.23 and 3.24 to 3.92 MPa for samples B and P respectively) for alkali activated CEB and decrease in flexural strength (3.43 to 2.61 and 2.02 to 1.76 MPa for samples B and P respectively) for acid activated CEB are achieved due to water content. Moreover, both activated CEB were found to be stable in water after 24 h of immersion. Hence, raw laterites activated with either acid or alkaline solution can be used for the production of Compressed Earth Blocks for engineering purposes.</p></div>","PeriodicalId":776,"journal":{"name":"Silicon","volume":"17 6","pages":"1365 - 1379"},"PeriodicalIF":2.8,"publicationDate":"2025-03-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143918997","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":"Exploring Next-Generation TMDC Materials: A Comprehensive Review of Their Classifications, Properties, and Applications","authors":"Vydha Pradeep Kumar,&nbsp;Pratikhay Raut,&nbsp;Deepak Kumar Panda,&nbsp;Ahmed Nabih Zaki Rashed","doi":"10.1007/s12633-025-03274-y","DOIUrl":"10.1007/s12633-025-03274-y","url":null,"abstract":"<div><p>In the field of nanotechnology, the emergence of TMDC materials has paved the way for the exploration and advancement of various innovative two-dimensional TMDC materials. The distinct physical and chemical characteristics of these materials outperform those of conventional bulk materials, opening up new avenues for study into a range of applications. The key electrical characteristics of TMDC materials are thoroughly covered in this work. Through comparative analysis, it investigates their performance, synthesis, and applications. Additionally, by analysing research trends and possible breakthroughs, the report emphasizes upcoming prospects. The results highlight how widely used TMDCs are in electrical engineering, electronics, and other fields. We have compared their electrical characteristics and performances, consolidating this information for easy reference in future research and analysis. Importantly, we have demonstrated a novel method of proving our theoretical studies with simulation results using a TCAD simulator that, a material behaviour cannot be attributed to a single parameter but rather to a combination of factors including layer thickness, crystal structure, mechanical strain, photon energy, doping, environmental conditions, interactions with other 2D materials, and gate voltage. It is observed from simulation that, the Ion/Ioff current ratio of MoS₂, WSe₂ and MoTe₂ as 2.25e9, 8.11e8 and 4.93e7. Based on these results and material properties, it is understood these materials can be employed for a variety of purposes due to their distinct features. For example, the direct bandgap and increased electron mobility of MoS₂ material make it suited for optoelectronic applications and high-speed electrical devices. MoTe₂ materials with variable bandgap and anisotropic conductivity, on the other hand, are appealing for flexible electronics, wearable devices, and devices needing directional charge transport. Based on their great compatibility we emphasize the possibility of finding new materials, such as heterostructures with improved properties, by carrying out in-depth research. These developments could have major positive effects on industry and society. By providing a cohesive study of TMDC electrical behaviour and useful simulation techniques, this review fills in gaps in the body of literature and serves as a useful resource for future research.</p></div>","PeriodicalId":776,"journal":{"name":"Silicon","volume":"17 6","pages":"1199 - 1221"},"PeriodicalIF":2.8,"publicationDate":"2025-03-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143919223","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 Bioactivity and Mechanical Strength of Strontium-Doped Calcium Silicate Bioceramic Prepared Through Sol–Gel Combustion Synthesis","authors":"Soundhariyaa Thirumagal Nedunchezhian,&nbsp;Santhakumar Kannappan","doi":"10.1007/s12633-025-03275-x","DOIUrl":"10.1007/s12633-025-03275-x","url":null,"abstract":"<div><p>The field of material science is increasingly focused on developing advanced biomaterials for hard tissue engineering, addressing the growing prevalence of bone diseases and injuries. Calcium silicate bioceramics, known for their exceptional bioactivity, osteoconductivity, and mechanical stability, have emerged as a cornerstone in orthopedic applications. Strontium (Sr²⁺) doping has further emerged as a transformative approach for enhancing these properties. This study investigates the bioactivity and mechanical properties of strontium-doped rankinite (Ca_3-xSr_xSi₂O₇), synthesized via sol–gel combustion method. Strontium ions (Sr²⁺) were incorporated at the calcium (Ca²⁺) site in three concentrations: 1, 2, and 3 mol%. A single-phase rankinite structure was successfully achieved after calcination at 1200 °C for 6 h, as confirmed by XRD. XPS analysis further validated the effective incorporation of Sr²⁺ into the rankinite lattice. Bioactivity was evaluated by immersing rankinite pellets in stimulated body fluids (SBF) for nine days, during which the formation of hydroxyapatite was confirmed via XRD. Mechanical testing revealed that increasing Sr²⁺ concentrations enhanced compressive strength (ranging from 232 to 243 MPa) and Young’s modulus (from 2.35 to 2.88 GPa), indicating improved mechanical stability. These findings suggest that strontium-doped rankinite exhibits excellent bioactivity and mechanical strength, making it a promising candidate for load-bearing bone regeneration applications.</p><h3>Graphical Abstract</h3>\u0000<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":776,"journal":{"name":"Silicon","volume":"17 6","pages":"1351 - 1363"},"PeriodicalIF":2.8,"publicationDate":"2025-03-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143919222","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":"Impact of Process Variation on DC and Analog Characteristics of 2 nm Forksheet FET","authors":"Sai Lakshmi Prasanth Kannam,&nbsp; Shubham,&nbsp;Rajan Kumar Pandey","doi":"10.1007/s12633-025-03273-z","DOIUrl":"10.1007/s12633-025-03273-z","url":null,"abstract":"<div><p>As semiconductor technology advances from MOSFET to gate-all-around FETs, new structures such as Nanosheet FET (NSFET) and Forksheet FET (FSFET) are gaining attention for sub-5 nm technology nodes. These devices offer superior gate control and high packing density. FSFET features nFET and pFET devices on either side of a dielectric wall, which is compatible with the existing CMOS lateral integration process. In this work, the junctionless FSFET, with bottom dielectric isolation (BDI) is used in studying the DC and RF performance. Additionally, we vary the sheet width and dielectric wall material (SiO₂ and SiN) to observe the effects on the performance of FSFET. Furthermore, the impact of the variation of dielectric wall width on the terminal characteristics is studied. Results reveal that increasing the sheet width enhances ON current (<span>({I}_{ON})</span>), transconductance (<span>({g}_{m})</span>), output conductance (<span>({g}_{ds})</span>), unity current gain frequency (<span>({f}_{T})</span>), and maximum oscillation frequency (<i>f</i>_<i>max</i>), while intrinsic gain (<span>({A}_{vo})</span>) and intrinsic delay (<i>τ</i>) are negatively affected. Silicon oxide, used as the dielectric wall material, demonstrates lower leakage currents and better performance when compared to silicon nitride as the dielectric wall material. It is found that leakages are substantially controlled in FSFET and also have lower subthreshold swing and DIBL compared to NSFET at the same technology node. These findings provide valuable insights into optimizing FSFETs for high-speed and analog applications.</p></div>","PeriodicalId":776,"journal":{"name":"Silicon","volume":"17 6","pages":"1323 - 1333"},"PeriodicalIF":2.8,"publicationDate":"2025-03-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143918985","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":"Silicon-Based Polymer Carriers in Delivering Natural Plant Extracts for Ulcerative Colitis Treatment","authors":"Caidi Zhao,&nbsp;Wei Wu","doi":"10.1007/s12633-025-03270-2","DOIUrl":"10.1007/s12633-025-03270-2","url":null,"abstract":"<div><p>Ulcerative colitis (UC) is a chronic inflammatory bowel disease characterized by recurrent inflammation in the colon and rectum. Compound 1, a bioactive component extracted from Coix seed (Coix lacryma-jobi), is known for its anti-inflammatory, immunomodulatory, and antioxidant properties, making it a promising candidate for UC treatment. However, its clinical application is hindered by poor stability, rapid enzymatic degradation, and limited bioavailability in the gastrointestinal tract. To address these challenges, a novel metal–organic framework (MOF), [Zn(L)(bipy)]·H₂O (CP1), was synthesized using Zn(II) ions and organic ligands (H₃L = 2,6-dioxopiperidine-4-carboxylic acid; bipy = 4,4'-bipyridine) as a biocompatible drug carrier. Characterization via single-crystal X-ray diffraction (SCXRD), powder X-ray diffraction (PXRD), FT-IR spectroscopy, BET surface area analysis, and elemental analysis confirmed its high porosity (260 m²/g), mesoporous structure, and pH stability, ensuring efficient encapsulation and controlled release of compound 1. To further improve biocompatibility and mitigate potential cytotoxicity from transition metal ions, CP1 was functionalized with 3-aminopropyltriethoxysilane (L-APTES), forming a 1@CP1@L-APTES composite system. Drug loading was validated by a reduction in surface area and pore volume after encapsulation. In UC models, this MOF-based drug delivery system significantly enhanced compound 1 stability, protected it from premature degradation, and facilitated targeted release at the inflammatory site. The composite exhibited notable anti-inflammatory effects, reducing colon inflammation and improving therapeutic efficacy. These findings suggest that 1@CP1@L-APTES serves as an efficient nanocarrier for Coix seed-derived compound 1, offering a novel strategy for enhanced UC treatment.</p></div>","PeriodicalId":776,"journal":{"name":"Silicon","volume":"17 6","pages":"1335 - 1349"},"PeriodicalIF":2.8,"publicationDate":"2025-03-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143918986","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":"Roasting of Potassium Feldspar with Sodium Hydroxide and Sodium Carbonate Mixed Additives to Extract Silica","authors":"Liu Jianan,&nbsp;Wu Siqi,&nbsp;Zhang Yingjian,&nbsp;Huang Jiandi,&nbsp;Zhang Qiuju,&nbsp;Wang Jiayao,&nbsp;Zhai Yuchun","doi":"10.1007/s12633-025-03277-9","DOIUrl":"10.1007/s12633-025-03277-9","url":null,"abstract":"<div><p>A new process for the extraction of SiO₂ by low-temperature roasting with potassium feldspar as raw material and sodium hydroxide and sodium carbonate (NaOH-Na₂CO₃) as auxiliaries was investigated. Under the optimal conditions, the silica extraction rate reached 99.59%. Through the design of alkali ore ratio, NaOH-Na₂CO₃ molar ratio, roasting temperature, roasting time four factors and three levels of orthogonal experiment. The primary and secondary relationships of the effects of various factors on SiO₂ extraction were obtained. The kinetics of SiO₂ extraction from potassium feldspar in NaOH-Na₂CO₃ mixed alkali system was systematically studied. According to the Arrhenius formula, the apparent activation energy of the two reaction stages was calculated, and the reaction equation was determined. It was determined that the front section of the reaction was controlled by the diffusion of the liquid boundary layer and the combination of surface chemistry. As the reaction proceeds, the chemical reaction rate is transformed into surface chemical reaction control. Finally, the chemical composition, phase structure and micro-morphological characterization of the slag showed that the original ore structure was almost destroyed and small holes were formed on the surface of the slag. It is proved again that the SiO₂ in the ore is extracted.</p></div>","PeriodicalId":776,"journal":{"name":"Silicon","volume":"17 6","pages":"1303 - 1321"},"PeriodicalIF":2.8,"publicationDate":"2025-03-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143919204","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 the Etching Solution Composition on the Properties of Nanoporous Black Silicon Fabricated Via Aluminium-Assisted Chemical Etching","authors":"Shahnawaz Uddin,&nbsp;Md. Roslan Hashim,&nbsp;Mohd Zamir Pakhuruddin","doi":"10.1007/s12633-025-03259-x","DOIUrl":"10.1007/s12633-025-03259-x","url":null,"abstract":"<div><p>Aluminium-assisted chemical etching (AACE) process employs Al catalyst to synthesize nanoporous black silicon (b-Si). In this paper, the composition of the etching solution (hydrofluoric acid (HF) + hydrogen peroxide (H₂O₂) + deionized water (H₂O)) is varied to control the etching rate and hence the properties of the as-fabricated nanoporous b-Si. There is a significant variation in the surface morphology, the optical and electrical characteristics of the b-Si nanopores by varying the volume concentration of H₂O₂ (1–10 ml) in a fixed volume concentration (10 ml) each of HF and deionized water (H₂O). The b-Si nanopores exhibit an average depth of 436 nm, surface coverage of 45.2% and root mean square surface roughness of 35.7 nm when the nanoporous b-Si is fabricated by using Al catalyst thickness of 24 nm and chemical composition of HF-H₂O₂-H₂O (10–1-10 ml). The lowest value of average reflection (R_avg) from the surface of the as-fabricated nanoporous b-Si is 5.7% within 300–1100 nm wavelength range. The electrical parameters such as the sheet resistance, the hole mobility and the hole concentrations are 279.6 Ω/sq, 170 cm²/V.s and 3.33 × 10¹⁵ cm⁻³ respectively. A lower value of R_avg for the nanoporous b-Si is vital for photovoltaic (PV) cells and photosensor applications.</p></div>","PeriodicalId":776,"journal":{"name":"Silicon","volume":"17 6","pages":"1289 - 1301"},"PeriodicalIF":2.8,"publicationDate":"2025-03-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143919200","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":"Attenuation Nature of Optical Fibers with Oxygen-Deficit Silica Core after γ-Irradiation with 1 MGy Dose","authors":"Mikhail A. Eronyan,&nbsp;Elizaveta L. Klyuchnikova,&nbsp;Marina K. Tsibinogina,&nbsp;Alexander A. Untilov,&nbsp;Vera E. Sitnikova,&nbsp;Ekaterina Yu Shatskaya","doi":"10.1007/s12633-025-03272-0","DOIUrl":"10.1007/s12633-025-03272-0","url":null,"abstract":"<div><p>The present work aims to investigate the nature of γ-irradiation induced attenuation in the near-infrared spectral region for single-mode optical fibers with a core made of oxygen-deficit silica glass and a fluorine-doped cladding. The optical fibers were fabricated by the MCVD method. After the irradiation with a dose of 1 MGy the optical fiber attenuation in the spectral range 1200–1600 nm was measured after 2 h, 3 and 10 months. The radiation induced attenuation in the 1600 nm region is higher and more stable than at 1300 nm. The silica glass phonon spectrum change is indicated by the measurements of the spectral dependence of absorption in the region of 1400–700 cm⁻¹ when silica glass grains are irradiated with a dose of 1 MGy. The increased oxygen content in the glass enhances the destruction of its network. The nature of radiation-induced attenuation of fibers in the 1900 nm spectral region is justified by the change in the intensity of the silica glass fundamental band fourth overtone. The attenuation at γ-irradiation with an increasing wavelength in such single-mode fibers is also related to the penetration of optical radiation into the cladding, the radiation resistance of which is less than that of the core material.</p></div>","PeriodicalId":776,"journal":{"name":"Silicon","volume":"17 6","pages":"1267 - 1272"},"PeriodicalIF":2.8,"publicationDate":"2025-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143919013","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":"Comparative Studies on CO2 Adsorption Performance of Different Morphologies of Silicalite-1 Zeolites Synthesized from Fly Ash","authors":"Xianglian Wu,&nbsp;Aisha Nulahong,&nbsp;Changmin Tuo,&nbsp;Jian Li,&nbsp;Fei Xu,&nbsp;Tiezhen Ren,&nbsp;Abulikemu Abulizi","doi":"10.1007/s12633-025-03269-9","DOIUrl":"10.1007/s12633-025-03269-9","url":null,"abstract":"<div><p>Solid waste fly ash has a great impact on the environment and pollutes water, air and soil to different degrees. Therefore, it is of great significance to realize the high-value utilization of fly ash. In this paper, high purity SiO₂ was successfully extracted from fly ash by high temperature calcination, alkali fusion activation and pickling. Then silicalite-1 zeolite molecular sieves with different morphologies were synthesized using SiO₂ extracted from solid fly ash as silicon source. The influencing factors such as crystallization time, crystallization temperature, NaOH dosage, TPAOH dosage and different hydrosilica ratios were investigated separately. The results show that under the conditions of crystallization time of 12 h, crystallization temperature of 180 ℃ and molar ratio of water–silicon of 42, the prepared P-S (plate-like silicalite-1) has good morphology, high relative crystallinity and adsorption capacity of CO₂ of 1.89 mmol/g.When the molar ratio of TPA⁺/ SiO₂ was 0.28, the relative crystallinity of the prepared S–S (spherical-like silicalite-1) reached the highest and the adsorption capacity of CO₂ was 1.34 mmol/g.When the molar ratio of NaOH / SiO₂ was 0.11, C-S (cross-type Na-silicalite-1) can be prepared, and the adsorption capacity of CO₂ is only 1.06 mmol/g. The CO₂ adsorption capacities follow P-S &gt; S–S &gt; C-S. The research results can not only pave the way for high-value utilization of fly ash, but alao provide a valuable reference for zeolite-based adsorbents in the adsorption removal or recovery of CO₂.</p><h3>Graphical Abstract</h3>\u0000<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":776,"journal":{"name":"Silicon","volume":"17 6","pages":"1273 - 1288"},"PeriodicalIF":2.8,"publicationDate":"2025-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143919015","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}