CLAY MINERALS
·
2026
·
IF 2.1
Sisi Hu,Xiangwei Zhang,Jielong Cao,Qingze Chen,Runliang Zhu
The reduction of volatile organic compounds (VOCs), especially the oxidation of highly toxic and chemically resistant toluene, remains a challenge in environmental catalysis. In this research, a porous TiO2/SiO2 support was initially fabricated through titanium pillaring of montmorillonite and then calcined and acid-leached as an efficient platform for Pt nanoparticle immobilization to yield Pt–TiO2/SiO2. The experimental data showed that the catalyst loaded with 0.37 wt.% Pt (0.37Pt–TiO2/SiO2) exhibits superior toluene oxidation performance, reaching a T90 of 190°C. Moreover, the catalyst exhibited remarkable water resistance, maintaining high efficiency even in the presence of 10% water vapour and outstanding long-term stability, with no substantial deactivation after 48 h of continuous operation. The performance improvement is explained by the high dispersion of Pt nanoparticles on the support and the metal–support interaction between Pt and TiO2, characterized by electron transfer from TiO2 to Pt. This interaction facilitates the adsorption and activation of reactant molecules. In situ diffuse reflectance Fourier-transform infrared spectroscopy explained the catalytic mechanism: toluene is sequentially transformed into benzyl alcohol, benzaldehyde and benzoate intermediates, which are subsequently converted to maleic anhydride by opening the ring and eventually mineralized into CO2 and H2O. This work developed a high-performance, durable catalyst using cost-effective and abundant natural minerals, offering promising prospects for practical abatement of industrial VOCs.
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高影响因子
Nanoscale Advances
·
2026
·Vol. 8
·期 18
·5342
·
IF 6.3
Sendong Zhou,Huihe Chen,Zekun Cheng,Yuan Gao,Meng Zhao,Yu Wang,Qingli Xue,Zujing Feng,Shuting Hou,Yuanyuan Zhang,Rui Xu,Yahan Pang,Jianfeng Zhang,Hui Wu,Sen Lin
Blood analysis is essential for managing critically ill patients, yet plasma/serum separation in point-of-care testing (POCT) remains centrifugation-dependent, hindering utility in resource-limited settings. Conventional filtration materials suffer from poor mechanical strength, fragile structures, and suboptimal separation performance. Herein, we fabricate a silica microfiber sponge (Turb-SiO 2 ) with a 3D disordered network via a turbulence spinning technique. The material exhibits exceptional flexibility, retaining >64% initial stress after 2500 compression cycles, and superior breathability (99.51% air permeability, 0.12 mm H 2 O pressure drops) under compression. The Turb-SiO 2 achieves efficient plasma separation with filtrate hemoglobin at 15.7 mg dL −1 , matching centrifugation efficacy and outperforming commercial filters. Its crimped fiber structure minimizes hemolysis by eliminating sharp tips that can damage red blood cells. With advantages in weight, volume, cost and operability, the Turb-SiO 2 offers a high-performance solution for portable low-cost POCT blood separation. A highly curved, flexible SiO 2 fiber sponge produced by turbulence spinning enables rapid, portable plasma separation from whole blood.
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高影响因子
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
·
2025
·
IF 3.8
Sheng Li,Junjie Shi,Yuchao Qiu,Yongyi Zhou,Xiaoyu Gong,Hongjian Tang,Dong Li,Xiao Sai,Jianzhang Li
Phase relationships in the Yb 2 O 3 –Al 2 O 3 –SiO 2 system are critical for the design and corrosion protection of environmental barrier coatings (EBCs), the available data remain scarce and primarily limited to studies from the 1990s. The isothermal phase diagram of the Yb 2 O 3 –Al 2 O 3 –SiO 2 system at 1600°C was conducted using a classical high-temperature equilibrium quenching technique, followed by XRD, SEM, and EPMA phase analysis. The data were reported in the form of liquidus projections and an isothermal phase diagram at 1600°C, with one single-phase region, six two-phase regions, and seven three-phase regions. A comparison of the liquid phase regions at 1550°C and 1600°C revealed a systematic expansion with increasing temperature, consistent with thermodynamic expectations. The experimental results from the present work are essential for the development of a thermodynamic database for rare earth oxides, providing vital guidance for designing next-generation EBCs.
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ACS Omega
·
2025
·
IF 4.3
Hushuan Huo,Zihang Shao,Xiangwei Meng,Shiyu Lv,Tao Li,Xudong Huang,Zengxi Wei,Qian Sun,Shuangliang Zhao
Pesticides are widely used to ensure crop yields and quality in agriculture. However, most pesticides are easily decomposed, leading to the overuse of pesticides for long-lasting control of pests and diseases, which pose serious hazards to the environment and human health. Herein, we propose a strategy to prepare hollow porous silica nanoparticles (SiO2 NPs) using 1,3,5-trimethylbenzene (TMB) as a pore-expanding agent and CaCO3 NPs as templates. The hollow SiO2 NPs obtain an average particle size of 121 nm and a shell thickness of approximately 15 nm and can be easily prepared with adjustable pore sizes ranging from 1.4 to 4.6 nm without using any surfactants. More importantly, these SiO2 NPs can be used for pesticide encapsulation and controlled release, achieving an encapsulation efficiency of 47% for avermectin and 38% for pyraclostrobin as well as outstanding ultraviolet shielding abilities. Based on the above results, a new release model is built to precisely predict and analyze the pesticide release of SiO2 NPs, showing that the experimental results are consistent with the predicted outcomes, which are further verified by the release performance by the SiO2 NPs with various BET surface areas. Our release model is promising for accurately predicting the drug release performance of hollow porous materials.
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高影响因子
Journal of Materials Chemistry C
·
2025
·
IF 5.1
Enfeng Yang,Xiaotao Yang,Dezhao Hao,Haitao Deng,Jianning Yu,Ye Tian,Lei Jiang
Antireflective (AR) coatings are indispensable for optimizing light energy capture in transparent materials and mitigating glare-induced hazards. However, current nanoporous coatings suffer from small pore sizes (2–10 nm) that are prone to blockage by atmospheric moisture and organic pollutants, limiting their practical performance. Herein, we report a scalable, low-cost fabrication method for robust meso-macroporous (~46 nm) SiO2 coatings with transmittance as high as 99.3% on glass, featuring superhydrophilicity for effective antifogging. By utilizing a sol–gel phase separation approach, polyacrylic acid acts as a dynamic template in an ethanol-water cosolvent system to enable precise size control. The resulting coatings exhibit remarkable adhesion (grade 5B), exceptional scratch resistance (over 100 cycles), and stable performance under humid heat treatment for 15 days. When applied to transparent conductive glass and solar cells, these coatings improve light transmittance by over 8.7% and solar cell relative efficiency by ~7.7%. Moreover, a simple dip-coating technique exhibits exceptional scalability for fabricating a relatively large-area (75 cm²) AR coatings. This approach offers a versatile platform for designing durable, high-performance porous AR coatings, with transformative potential in solar energy, optical devices, and architectural applications.
研究领域:
材料科学
·
太阳能技术
·
光学工程
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高影响因子
Pigment & Resin Technology
·
2024
·Vol. 54
·期 2
·198-207
·
IF 1.3
Qing Jiang,Yuhang Wan,Xiaoqian Li,Xueru Qu,Shengnan Ouyang,Yi Qin,Zhenyu Zhu,Yushu Wang,Hualing He,Zhicai Yu
PurposeThis study aims to evaluate the thermal performance of sodium alginate (SA) aerogel attached to nano SiO2and its radiative cooling effect on firefighting clothing without environmental pollution.Design/methodology/approachSA/SiO2aerogel with refractory heat insulation and enhanced radiative cooling performance was fabricated by freeze-drying method, which can be used in firefighting clothing. The microstructure, chemical composition, thermal stability, and thermal emissivity were analyzed using Fourier transform infrared spectroscopy, scanning electron microscopy, thermogravimetric analyzer and infrared emissivity measurement instrument. The radiative cooling effect of aerogel was studied using thermal infrared imager and thermocouple.FindingsWhen the addition of SiO2is 25% of SA, the prepared aerogel has excellent heat insulation and a high radiative cooling effect. Under a clear sky, the temperature of SA/SiO2aerogel is 9.4°C lower than that of pure SA aerogel and 22.1°C lower than that of the simulated environment. In addition, aerogel has more exceptional heat insulation effect than other common fabrics in the heat insulation performance test.Research limitations/implicationsSA/SiO2aerogel has passive radiative cooling function, which can efficaciously economize global energy, and it is paramount to environment-friendly cooling.Practical implicationsThis method could pave the way for high-performance cooling materials designed for firefighting clothing to keep maintain the wearing comfort of firefighters.Originality/valueSA/SiO2aerogel used in firefighting clothing can release heat to the low-temperature outer space in the form of thermal radiation to achieve its own cooling purpose, without additional energy supply.Graphical abstract
研究领域:
材料科学
·
热能工程
·
纺织科学
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高影响因子
JOURNAL OF COLLOID AND INTERFACE SCIENCE
·
2025
·
IF 9.7
Jiannan Sun,Pan Zhang,Ke Yan,Aizhao Pan,Christophe Len,Weiyi Ouyang,Chengyu Shi,Xinyi Shi,Jun Hong
Quantum dots (QDs) with dual-emission property have garnered significant attention as prototype platforms for temperature measurement due to their self-calibration capabilities and high sensitivity. The assembly and property modulation of this materials hold great research value. In this work, we propose a strategy to utilize dendritic mesoporous SiO 2 core–shell spheres to encapsulate dual QDs, enabling the constructing of dual-emission fluorescent temperature sensing system. By encapsulating CsPbBr 3 and CdTe QDs in SiO 2 core–shell spheres, we developed a dual-emission temperature probe that employs two thermometry modes: peak wavelength spacing variation and fluorescence intensity ratio. This probe offers advantages such as high thermal stability, excellent fit, and high sensitivity. Additionally, inspired by the concept of series sliding resistors, we introduced a novel approach to adjust the probe’s sensitivity by treating the fluorescence intensity and peak wavelength of the dual QDs as the “sliding resistor”. This innovation results in a temperature fluorescence sensing system with tunable sensitivity. We also explored the potential applications of these probes in temperature measurement, light-emitting diodes, and fluorescent anti-counterfeiting. Our research presents an effective strategy for the rational design of high-performance dual-emission fluorescence temperature sensing systems with customizable sensitivity.
研究领域:
材料科学
·
纳米技术
·
光学工程
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高影响因子
Advanced Fiber Materials
·
2022
·Vol. 4
·期 5
·1069-1080
·
IF 12.958
Wang Caihong,Liu Ke,Wang Dong,Wang Guomin,Chu Paul K.,Meng Zheyi,Wang Xuefen
Hierarchical CuO–ZnO/SiO 2 (CZS) nanofibrous membranes are designed and fabricated to remove Congo red and 4-nitrophenol two common small molecular pollutants in water. The electrospun SiO 2 fibrous membrane is serves as the substrate for hydrothermal depositing CuO–ZnO nanosheets. The CZS nanofibrous membrane shows good adsorption characteristics for Congo red due to the hierarchical morphology and the adsorption kinetics where isotherm follows the pseudo-second-order model and Langmuir model, respectively. The maximum adsorption capacity for Congo red is 141.8 mg/g. Moreover, the membrane exhibits excellent catalytic reduction activity for 4-nitrophenol under mild conditions and over 96% of the pollutants are degraded within 90 s. The CZS nanofibrous membrane has promising prospects in applications in water treatment and environmental protection because of the good flexibility, easy fabrication, excellent adsorption, and catalytic activity. Graphical abstract
研究领域:
材料科学
·
环境科学
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Polymers
·
2023
·Vol. 15
·期 2
·394
·
IF 5
Xuan Liu,Wanning Mao,Jie Gong,Haiyu Liu,Yanming Shao,Liyu Sun,Haihua Wang,Chao Wang
In order to enhance the electrochemical performance and mechanical properties of poly(ethylene oxide) (PEO)-based solid polymer electrolytes, composite solid electrolytes (CSE) composed of single-ion conducting polymer-modified SiO2, PEO and lithium salt were prepared and used in lithium-ion batteries in this work. The pyridyl disulfide terminated polymer (py-ss-PLiSSPSI) is synthesized through RAFT polymerization, then grafted onto SiO2via thiol-disulfide exchange reaction between SiO2-SH and py-ss-PLiSSPSI. The chemical structure, surface morphology and elemental distribution of the as-prepared polymer and the PLiSSPSI-g-SiO2nanoparticles have been investigated. Moreover, CSEs containing 2, 6, and 10 wt% PLiSSPSI-g-SiO2nanoparticles (PLi-g-SiCSEs) are fabricated and characterized. The compatibility of the PLiSSPSI-g-SiO2nanoparticles and the PEO can be effectively improved owing to the excellent dispersibility of the functionalized nanoparticles in the polymer matrix, which promotes the comprehensive performances of PLi-g-SiCSEs. The PLi-g-SiCSE-6 exhibits the highest ionic conductivity (0.22 mS·cm−1) at 60 °C, a large tLi+of 0.77, a wider electrochemical window of 5.6 V and a rather good lithium plating/stripping performance at 60 °C, as well as superior mechanical properties. Hence, the CSEs containing single-ion conducting polymer modified nanoparticles are promising candidates for all-solid-state lithium-ion batteries.Keywords:composite solid electrolyte;single-ion conducting polymer grafting;SiO2modification;RAFT polymerization;all-solid-state battery
研究领域:
材料科学
·
电化学
·
聚合物化学
·
电池技术
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高影响因子
JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
·
2025
·
IF 3.1
Jin Jiafei,Cai Xiaoming,Zhang Zhiwu,Zhao Ziming,Fu Han,Tang Junwen,Xiao Weiqi,Qin Ming,Cai Jinming
As the power density of electronic devices continues to increase, traditional coolants (e.g., water and ethylene glycol) are unable to meet the demand for efficient heat dissipation. This study prepared graphene oxide (GO)/aminated iron (III) oxide (Fe 3 O 4 @SiO 2 –NH 2 ) nanofluids (NFs, abbreviated as GF NFs) with different mass fractions, and systematically investigated their stability, thermophysical properties, and heat transfer enhancement (HTE) mechanism under magnetic field modulation. Experimental results show the following: The viscosity of NFs increases with rising particle concentration and decreases with increasing temperature; Conductivity increases with increasing concentration and temperature. For heat transfer performance, the convective heat transfer coefficient (h) of the NFs increased significantly with flow rate. Adding 0.05 mass% GF to the base fluid, the maximum HTE of GF NFs reached 120%. reducing the device temperature by 2.2 °C. Under a 1460 G magnetic field, the 0.1mass% GF NF reduced the device temperature by 2.6 °C compared to the base fluid. Combined with numerical simulations, this study reveals that the Brownian motion of nanoparticles (NPs) and magnetically induced micro-convection synergistically disrupt the thermal boundary layer, thereby enhancing the heat transfer performance of NFs. This study provides novel functionalized NF materials and regulation strategies for the intelligent thermal management of high-power electronic devices.
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高影响因子
Materials Today Chemistry
·
2025
·
IF 6.7
Peng Jin,Xinyi Li,Liya Zhang,Wei Wang,Yuhong Zhang,Yi Wu,Zhengguang Sun,Yuan Zhan
Room temperature phosphorescent (RTP) materials have promising application in display lighting, environmental monitoring, and information encryption. In this study, a series of RTP halogen doped carbon dots/SiO 2 composites (RTP X-CDs/SiO 2 , X = F, Cl, Br, I) with long lifetime and tunable particle size were successfully prepared by two-step process involving solvothermal and calcination. The effects of various halogen dopants on the phosphorescence properties and morphologies of the RTP X-CDs/SiO 2 composites were thoroughly investigated. Among them, RTP F-CDs/SiO 2 exhibit an ultra-long lifetime of 1.28 s, a phosphorescence quantum yield of 19.76 %, and remarkable stability against temperature variations, acid and alkali conditions, and exposure to polar solvents. Therefore, RTP F-CDs/SiO 2 were further incorporated into silicone resin to fabricate phosphorescent films, and optical and hydrophobic properties of films with varying RTP F-CDs/SiO 2 mass fractions (2.5 %–15.0 %) were systematically explored. The films demonstrate excellent fluorescence and RTP performance, highlighting their potential for advanced anti-counterfeiting and information encryption.
研究领域:
材料科学
·
光学材料
·
纳米技术
·
信息安全
·
化学合成
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高影响因子
Coatings
·
2025
·Vol. 15
·期 9
·985
·
IF 2.8
Jie Fang,Rongqing Dong,Meng Zhou,Lishan Liang,Mingna Yang,Huakun Xing,Yongluo Qiao,Shuai Chen
Poly (3,4-ethylenedioxythiophene):polystyrene sulfonate (PEDOT:PSS) stands out as a renowned commercial conducting polymer composite, boasting extensive and promising applications in the realm of film electronics. In this study, we have made a concerted effort to overcome the inherent drawbacks of PEDOT:PSS films (especially, high moisture absorption, mechanical damage vulnerability, insufficient substrate adhesion ability, etc.) by uniformly blending them with polydimethylsiloxane polyurea (PDMS-PUa) and silica (SiO2) nanoparticles through a feasible mechanical stirring process, which effectively harnesses the intermolecular interactions, as well as the morphological and structural characteristics, among the various components. The Si−O bonds within PDMS-PUa and the −CH3groups attached to Si atoms significantly enhance the hydrophobicity of the composite film (as evidenced by a water contact angle of 132.89° under optimized component ratios). Meanwhile, SiO2microscopically modifies the surface morphology, resulting in increased surface roughness. This composite film not only maintains high conductivity (1.21 S/cm, in contrast to 0.83 S/cm for the PEDOT:PSS film) but also preserves its hydrophobicity and electrical properties under rigorous conditions, including high-temperature exposure (60–200 °C), ultraviolet (UV) aging (365.0 nm, 1.32 mW/cm2), and abradability testing (2000 CW abrasive paper, drag force of approximately 0.98 N, 40 cycles). Furthermore, the film demonstrates enhanced resistance to both acidic (1 mol/L, 24 h) and alkaline (1 mol/L, 24 h) environments, along with excellent self-cleaning and de-icing capabilities (−6 °C), and satisfactory adhesion (Level 2). Notably, the dried composite film can be re-dispersed into a solution with the aid of isopropanol through simple magnetic stirring, and the sequentially coated films also exhibit good surface hydrophobicity (136.49°), equivalent to that of the pristine film. This research aims to overcome the intrinsic performance drawbacks of PEDOT:PSS-based materials, enabling them to meet the demands of complex application scenarios in the field of organic electronics while endowing them with multifunctionality.
研究领域:
材料科学
·
高分子科学
·
电气工程
·
表面工程
·
纳米技术
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危险品化学品经营许可证（带存储）