European Journal of Wood and Wood Products
·
2026
·Vol. 84
·期 2
·48
·
IF 2.7
Qi Feicui,Huang Quanfei,Huang Yanhui,Sun Xiaoting,Liu Zhi,Zhang Zongling,Liu Liyan,Yan Xueying,Tian Jun,Huang Luyi
Bamboo is a naturally-optimized composite material, but it is prone to deformation, cracking, mildew, and decay. The application of coatings with both mildew and decay resistance can provide long-term protection for bamboo, but bamboo lacks transverse cells and contains few fiber cell cavities and pits, leading to poor coating adhesion. This study subjected Phyllostachys edulis ( P. edulis ) and Neosinocalamus affinis ( N. affinis ) substrates to hygrothermal pretreatment to enhance the adhesion of coatings applied to them. A novel nano-Ag/SiO 2 -modified water-based coating with excellent dispersibility and thermal stability was applied to the surface of the pretreated bamboo strip substrates. The adhesion of the coating reached the highest level (Grade 0, no coating detachment), and its initial and maximum peel forces increased by 53.8% and 41.1% after hygrothermal pretreatment, respectively. Upon increasing the nano-Ag/SiO₂ content, the thickness, adhesion, hardness, scratch resistance, resistance to heating-cooling cycles, and mildew/decay resistance of the water-based coating improved. After the mildew resistance tests, the infection level of the samples decreased from Grade 3 (1/2–3/4 of the surface) to Grade 0 (No visible hyphae), while the discoloration level decreased from Grade 4 (severe surface and internal discoloration) to Grade 1 (minor surface discoloration) after soil burial tests. The weight loss rate, gloss reduction, and color difference of the surface also decreased after both tests. The results showed that the water-based coating modified with 2 wt% nano-Ag/SiO 2 exhibited the best dispersion uniformity, abrasion resistance, and minimal color difference, providing the best decorative and protective performance for the bamboo. The coating extended the service life of bamboo and enhanced its applicability in high-humidity indoor environments and harsh outdoor conditions.
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产品关联
DOI
高影响因子
Journal of Environmental Chemical Engineering
·
2026
·Vol. 14
·期 6
·125412
·
IF 7.5
Huaqing Liu,Yujian Hu,Wenjuan Liu,Mengcheng Zhang,Wenrui Zhang,Yanlong Wang
A spatially regulated Fe⁰@SiO₂@nCaO₂ nanocomposite was rationally designed. • A multifunctional material integrates oxidation, precipitation, and flocculation. • Fe loading regulates ROS generation and pollutant-specific removal pathways. • Sequential activation of oxidation, precipitation, and flocculation pathways was revealed. The simultaneous removal of coexisting organic and inorganic contaminants remains a major challenge for wastewater treatment because conventional technologies fail to integrate oxidative degradation with inorganic immobilization in a single reaction system. Herein, a spatially regulated Fe 0 @SiO 2 @nCaO 2 multifunctional nanocomposite was developed to achieve synergistic purification of representative organic pollutants (sulfamethoxazole and atrazine) and inorganic contaminants (As(III) and phosphate). Batch experiments showed that the optimized Fe 0 @SiO 2 @nCaO 2 composite (Fe loading of 170.2 mg g −1 , 1 g L −1 ) removed 97.9% of sulfamethoxazole and 99.9% of atrazine, As(III), and phosphate within 24 h at an initial concentration of 20 mg L −1 for each contaminant. Radical–quenching experiments combined with electron paramagnetic resonance analysis revealed the involvement of 1 O 2 and •O 2 - , with a possible contribution from •OH. Notably, 1 O 2 showed the strongest apparent influence on sulfamethoxazole oxidation under the present alkaline conditions. Arsenic removal involved an initial As(III) oxidation step, followed by adsorption onto Fe-based sites and final immobilization through Fe/Ca–Si flocculation, rather than direct precipitation. Phosphate was primarily immobilized through rapid calcium-induced precipitation followed by incorporation into Fe/Ca–Si flocs. In the ternary sulfamethoxazole–As(III)–phosphate system, phosphate precipitation, organic oxidation, and arsenic immobilization exhibited distinct temporal separation. Matrix-effect experiments further showed that humic acid mainly inhibited As immobilization. Nevertheless, in a real-water matrix, 24-h removal efficiencies remained 92.1%, 99.5%, and 97.0% for SMX, phosphate, and As, respectively. These results demonstrated that Fe 0 @SiO 2 @nCaO 2 integrated complementary oxidation, precipitation, and immobilization pathways while maintaining effective performance under complex water-matrix conditions.
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高影响因子
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
·
2026
·
IF 5.4
Feng Wei,Anjun Shi,Guangxing Huang,Haidong Gu,Yinsi Gan,Jianan Song
Ice-templated assembly can organize two-dimensional and one-dimensional fillers into oriented networks, providing an effective strategy for constructing thermally conductive pathways in polymer composites. However, conventional two-dimensional fillers, such as graphene and MXene, are prone to curling, restacking, and aggregation, which compromises network continuity and thermal transport efficiency. In contrast, Al flakes possess high thermal conductivity, a high aspect ratio, and resistance to curling, but their surface oxidation and poor water dispersibility limit their application in ice-templated assembly. Herein, surface modification with silicon dioxide (SiO 2 ) was first introduced onto Al flakes to improve their dispersibility in water and mitigate surface oxidation. The resulting flakes (Al@SiO 2 ) were then combined with silicon carbide nanowires (SiCNWs) to form oriented hybrid filler networks in silicone rubber (SR) through ice-templated assembly, followed by interfacial modification using a polysiloxane-based modifier. The best-performing composite achieved a through-plane thermal conductivity of 4.49 W·m −1 ·K −1 at an Al@SiO 2 /SiCNW loading of 6.54 wt% (2.60 vol%). Theoretical modeling evaluated the contribution of Al@SiO 2 flakes and SiCNWs to thermal transport, while finite-element simulations confirmed that the oriented hybrid networks promoted continuous heat transfer. The composites also exhibited excellent heat-dissipation capability and thermal stability. This work provides an effective strategy for constructing highly efficient thermally conductive networks in polymer composites. Download: Download high-res image (223KB) Download: Download full-size image
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高影响因子
POLYMER ENGINEERING AND SCIENCE
·
2026
·
IF 3.6
Xiaoji Fu,Feng Zhou,Yu Song,Hui Chen,Dan Fang,Yating Chen,Xiri Chen,Dong Lu,Xianyan Ren
At low temperatures, the performance of polymeric adsorbents in remediating oil spills and organic-solvent leakage can be severely compromised by restricted segmental mobility within the polymer network. To address this limitation, an acrylate-based oil-adsorption resin with a low glass-transition temperature ( T g ) was prepared through solution polymerization by regulating the solvation environment of the growing polymer chains. An ethyl acetate/isopropanol mixture (3:1 v/v) was used as the polymerization medium, with stearyl methacrylate and butyl methacrylate as comonomers and divinylbenzene as the crosslinker. KH570-modified SiO 2 nanoparticles were incorporated in situ to construct an organic–inorganic network, denoted PSDB@SiO 2 . The PSDB@SiO 2 exhibited a T g of −29.35°C and a static water contact angle of 109.73°, providing a favorable basis for low-temperature segmental responsiveness and organic-liquid wetting. PSDB@SiO 2 maintained a high chloroform adsorption capacity of 40.75–51.60 g·g −1 from room temperature to −40°C. At −20°C, 82.92% of the initial adsorption capacity was retained after 10 adsorption–desorption cycles. Moreover, the material retained 99% of the adsorbed chloroform after centrifugation at 12000 rpm for 5 min and exhibited selective capture of organic liquids under simulated application conditions. Highlights Solvation-regulated polymerization enables high-capacity adsorption at low temperatures. PSDB@SiO 2 combined a T g of −29.35°C with solvent-induced relaxation. Adsorption capacity remained 40.75–51.60 g·g −1 from −40°C to 20°C.
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高影响因子
MICROPOROUS AND MESOPOROUS MATERIALS
·
2026
·
IF 4.5
Jingxiao Liu,Ruiqi Hou,Zixuan Wang,Jiaxiang Wan,Peng Zhou,Yefan Jia,Wei Wang,Fei Shi
Highly porous VO 2 -SiO 2 composite aerogels were in-situ prepared via CO 2 supercritical drying. • The VO 2 -SiO 2 aerogel films exhibited high sunlight modulation and thermal insulation performance. • The VO 2 -SiO 2 aerogel can be used for smart windows due to its thermochromism/thermal insulation synergy and good durability. Vanadium dioxide (VO 2 ) shows great potential for applications in smart windows due to its reversible metal-insulator phase transition and unique thermochromism, but its low visible transparency and poor stability require further improvement, and low thermal conductivity is vital for energy-saving windows. Herein, a thermochromic VO 2 -SiO 2 composite aerogel with high thermal insulation and high stability was in-situ synthesized via sol-hydrothermal and CO 2 supercritical drying process. The results demonstrate that the VO 2 -SiO 2 composite aerogels possess a highly porous structure, with a large pore volume ranging from 1.44 to 2.15 cm 3 /g and an average pore diameter of 11.24-19.00 nm. The as-prepared VO 2 -SiO 2 aerogel/PMMA composite films with V/Si molar ratio of 3 exhibit the highest solar modulation ability (Δ T sol = 12.84%) and at 90°C, exhibits a surprising increase in visible light transmittance, reaching the highest value of 48.87%, which is 4.49% higher than that at 20°C. Moreover, the thermal insulation performance test results indicate that all the composite aerogel films exhibit good thermal insulation performance, and maintain excellent thermal stability after 30 cycles of thermal insulation tests. This study presents a novel strategy for fabricating VO 2 -SiO 2 composite aerogels, which can fully exploit the synergistic effect between VO 2 and SiO 2 aerogels, showing great application potential for energy-saving windows. Download: Download high-res image (365KB) Download: Download full-size image
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DOI
高影响因子
MICROCHIMICA ACTA
·
2026
·Vol. 193
·期 10
·676
·
IF 5.4
He Yi-Juan,Zhu Yu-Lan,Zhao Yun-Qiao,He Ren-Xiu,Xie Sheng-Ming,Wang Bang-Jin,Zhang Jun-Hui,Yuan Li-Ming
A facile one-pot strategy was developed to construct a core-shell UMOP-S-2-Ppa@SiO 2 composite using (S)-2-phenylpropionic acid as chiral selector. The prepared UMOP-S-2-Ppa@SiO 2 composite was utilized as a novel chiral stationary phase (CSP) for HPLC enantioseparation. Under normal-phase HPLC conditions, the packed column afforded effective enantioseparation for 18 racemates including alcohols, aldehydes, esters, ketones, amines, and epoxy compounds, among which 11 pairs of enantiomers achieved baseline resolution. Compared with the widely used Chiralpak AD-H and Chiralcel OD-H columns, the developed chiral column exhibited good chiral separation complementarity. It can efficiently resolve some racemates that fail to be separated by the above commercial columns. The column also demonstrated satisfactory repeatability and stability, and the relative standard deviations of retention time and peak area remained below 1.0% after 250 consecutive injections. These results demonstrate that chiral metal-organic cages(MOC)@SiO 2 core-shell composites prepared via a post-synthetic modification strategy hold great promise for HPLC enantioseparation, offering new insights into the development of MOC-based materials for chromatographic applications. Graphical
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高影响因子
JOURNAL OF ALLOYS AND COMPOUNDS
·
2026
·
IF 6.7
Ou Hai,Jiaxin Qin,Peng Li,Xin An,Keke Guan,Hulin Liu,Yuanting Wu
Achieving diverse persistent colors is an important strategy for the application of long persistent phosphors in anti-counterfeiting. Utilizing the light conversion of perovskite quantum dots is an important approach. However, achieving rapid, in-situ, and green fabrication of perovskite quantum dots (QDs) on the surface of long persistent phosphors remains a key challenge. This work proposes a strategy: adsorbing an aqueous CsPbI 3 solution into the porous silica layer on the surface of Sr 2 MgSi 2 O 7 :Eu 2+ ,Dy 3+ (SMS), followed by rapid drying to generate CsPbI 3 QDs in situ. This approach enables efficient fabrication of the nanocomposite Sr 2 MgSi 2 O 7 :Eu 2+ ,Dy 3+ @CsPbI 3 -SiO 2 (MISNs) while preserving the crystallinity of CsPbI 3 QDs. Interestingly, MISNs exhibit differential luminescence under excitation with light of varying wavelengths, even after removal of the excitation source, CsPbI 3 QDs can absorb long persistent luminescence (LPL) energy from SMS and convert it into their own fluorescent (FL) emission, thereby enhancing the concealment capability for advanced anti-counterfeiting. MISN-based luminescent inks can be deposited on common substrates (e.g., glass, aluminum foil, rubber) to form stable multicolor anti-counterfeiting marks. This study offers novel insights into the multicolor development of long persistent phosphors and the advancement of anti-counterfeiting technologies.
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DOI
高影响因子
Surfaces and Interfaces
·
2026
·
IF 6
Hui Zhou,Bingxin Zhu,Xiang Li,Baolei Liu,Zhigang Liu,Shihua Yu
To recover the high value-added pharmaceutical intermediate tenofovir from wastewater efficiently and conveniently, a tailored magnetic composites of Fe 3 O 4 @SiO 2 @La(OH) 3 have been prepared via solvothermal and in-situ reduction methods. It exhibits the ability to remove tenofovir with high efficiency and easily separated from matrix. Batch sorption experiments demonstrated that Fe 3 O 4 @SiO 2 @La(OH) 3 can remove tenofovir with the maximum adsorption capacity of 64.53 mg/g, the largest removal of 93.07%, and fast equilibrium time of 5 min. The kinetics of tenofovir adsorption on the magnetic composite is in line with the pseudo-second-order model, while the isotherm is fitted well by the Langmuir model, and thermodynamic parameters represent that adsorption process is spontaneous and endothermic. Moreover, the saturated Fe 3 O 4 @SiO 2 @La(OH) 3 have been desorbed by mechanical stirring with the high desorption rate of 93.02%, and the adsorption capacity maintaining 47.72 mg/g after five cycles. Importantly, the composites can be used for tenofovir removal from crude extracts of pharmaceutical wastewater, with an adsorption capacity of 51.61mg/g in 5 min. Finally, the adsorption mechanisms are explored by pH experimental evidence and XPS analysis, which show that mainly involve electrostatic attraction and the inner-sphere complexation between La(OH) 3 and phosphate groups of tenofovir via ligand exchange. All the results prove that the proposed tenofovir recovery technique, providing new ideas for the recovery of high value-added substances and waste resources rationalization of the application of development. A magnetic Fe 3 O 4 @SiO 2 @La(OH) 3 was synthesized and realized the recovery of tenofovir with high economic value in pharmaceutical wastewater crude extracts. Download: Download high-res image (249KB) Download: Download full-size image
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高影响因子
CHEMICAL ENGINEERING SCIENCE
·
2026
·
IF 5.1
Peixin Hong,Fengyue Yin,Rongkai Cui,Yongsheng Lin,Xiaoyan Chen,Ting Qiu,Jie Chen
Sec -butyl alcohol (SBA) is a crucial chemical intermediate and solvent in organic synthesis. The transesterification of sec -butyl acetate (SBAC) with methanol (MeOH) is a key SBA production process due to straightforward reaction conditions and raw materials easily available, but conventional catalysts suffer from high corrosivity and poor recyclability, increasing costs. Herein, we report a series of novel heterogeneous catalysts of TEOS-[Ch][Im]- x with differential loading amount of choline imidazolate ([Ch][Im]) supported on SiO 2 . [Ch][Im], for the first time, is employed not only as a basic catalyst to facilitate the formation of SiO 2 , but also as a catalytic moiety immobilized on the SiO 2 matrix via H-O hydrogen bonds, thus enabling the fabrication of efficient SiO 2 -based catalysts through a one-pot reaction. By optimization of catalytic conditions for optimal catalyst TEOS-[Ch][[Im]-12, over 50% SBAC conversion is achieved in 60 min, and the conversion rate reaches 61.58% under the reaction temperature of 67 ℃ , nMeOH: nSBAC = 8.8:1, and catalyst dosage 9 wt% conditions after response surface methodology (RSM) optimization. More importantly, the catalyst exhibits excellent reusability and cycling stability without any noticeable deactivation over five consecutive reaction cycles. Density functional theory (DFT) calculations and in situ diffuse reflectance infrared Fourier transform spectroscopy ( in situ DRIFTs) results further confirm that the functionalized [Im] − anions could activate methanol to form the key adsorbed CH 3 O* intermediate, which then undergoes a nucleophilic reaction with SBAC to yield SBA. This facile synthetic strategy thus endows the catalyst with considerable application potential for green catalytic transesterification processes.
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DOI
高影响因子
ChemistrySelect
·
2026
·Vol. 11
·期 15
·e07225
·
IF 2.3
Feng Zhou,Danquan Bi,Xinzhi Liu,Suhaidi Shafie,Xiongtao Yu,Danfeng Qin
Environmental analysis and food safety control still depend on quick, precise nitrite monitoring. In response, the current work uses a one-step hydrothermal process to create a hollow SiO 2 @C core-shell material, which is then integrated into an electrochemical nitrite sensor. X-ray diffraction, high-resolution transmission electron microscopy, and scanning electron microscopy all confirm the homogeneous carbon coating and hollow structure, creating a strong foundation for charge transfer. The SiO 2 @C-modified electrode maintains linearity between 0.5 and 4650.0 µM and achieves a detection limit of 0.17 µM. Strong operational stability is demonstrated by the high repeatability (RSD = 1.23%) and the retention of 90.66% of the initial signal after 17 days at 4°C. Reliable performance in complex food matrices is confirmed by standard-addition assays in sausage and fermented bean curd, which provide recoveries of 95.53–100.03% and 98.15–99.83%, respectively. These findings establish the hollow SiO 2 @C sensor as a useful, highly sensitive instrument.
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DOI
高影响因子
CORROSION SCIENCE
·
2026
·
IF 10.3
Hui Huang,Xiaowu Chen,Liang Zhou,Jinshan Yang,Xiangyu Zhang,Yanmei Kan,Ping He,Hao Qin,Han Luo,Xiao You,Shaoming Dong
Despite the excellent mechanical properties of SiC f /SiC composites, the extremely harsh corrosion limits their durability as structural materials for high-temperature applications. Here, we propose a synergistic Al 3+ /Y 3+ stabilization strategy to achieve highly durable SiC f /SiC composites with enhanced mechanical stability. This is realized by constructing an Al/Y co-diffused SiC matrix, which can form a robust YAlSi x O y glass network under high-temperature atmospheric (40% H 2 O & 60% O 2 ) corrosion. The Al/Y co-diffused SiC f /SiC composites (SiC f /SiC-Al40Y) exhibit high bending strength retention of 98.5% after corrosion at 1200 ℃, as well as 78.9% up to 1300 ℃, significantly exceeding those of the counterparts without diffusion treatment. The improved mechanical stability is primarily attributed to the synergistic Al 3+ /Y 3+ stabilization of corrosion-induced SiO 2 glass network, which can suppress the matrix cracking and thus mitigate the corrosion. This work demonstrates the strategy of synergistic Al 3+ /Y 3+ stabilization for constructing SiC f /SiC composites with enhanced durability, offering an innovative concept to develop SiC f /SiC composites applicable at higher temperatures for thermo-structural applications.
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DOI
高影响因子
CERAMICS INTERNATIONAL
·
2026
·
IF 6
Leibo Deng,Tianyi Li,Yahui Zhou,Wenjing Zhang
The harmless treatment of Cr-containing solid waste remains a critical environmental challenge. Herein, Cr 2 O 3 -doped CaO–MgO–Al 2 O 3 –SiO 2 glass-ceramics with varying Na 2 O contents were prepared via a melting method. The study focuses on how Na 2 O regulates the glass network, crystallization behavior, and Cr immobilization efficiency. With increasing Na 2 O content, the degree of depolymerization (DOD) of the parent glass increases from 1.76 to 1.99, while the crystallization activation energy decreases accordingly. The optimal formulation is achieved at 1 wt% Na 2 O combined with a two-stage heat treatment (nucleation at 720 °C for 2 h, followed by crystallization at 850 °C for 2 h). Under these conditions, the glass-ceramic exhibits the lowest Cr leaching concentration of 0.031 mg/L, far below the regulatory limit of 5 mg/L. The dominant crystalline phases are diopside and a spinel solid solution, where Cr 3+ is stably incorporated into the spinel. These findings demonstrate that controlled Na 2 O addition provides an effective compositional lever for optimizing both crystallization kinetics and heavy metal immobilization, offering a sustainable pathway for valorizing Cr-containing wastes into high-performance glass-ceramics.
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DOI
高影响因子
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