Fire-Switzerland
·
2026
·Vol. 9
·期 2
·88
·
IF 3.2
Xiaodong Pei,Jiahui Chen,Huafeng Liu,Liang Wang,Zhendong Miao,Yujie Yuan,Jialin Xi,Chenglin Li,Chenhao Tian,Yanzhao Liu
To effectively prevent and control coal spontaneous combustion, a novel heat-sensitive hydrogel for mine fire prevention and extinguishment was developed using hydroxypropyl methylcellulose (HPMC) and the organic flame-retardant, sodium alginate (SA). The hydrogel was prepared through single-factor variable control and material compounding. First, the optimal formulation of the hydrogel was determined using analytical instruments and techniques, including a viscometer, vacuum drying oven, and the inverted test tube method. Subsequently, its microstructural characteristics were examined using scanning electron microscopy (SEM) and infrared spectroscopy (FTIR). Finally, a fire suppression test platform was established to perform comparative experiments, verifying the hydrogel’s fire prevention, extinguishing, and cooling performance. Experimental results demonstrated that the optimal hydrogel formulation consists of 2.5 wt% HPMC and 0.3 wt% SA. At this ratio, the hydrogel exhibits excellent fluidity and water retention, ensuring prolonged coverage and wetting of coal surfaces. The gel undergoes a sol–gel phase transition at 58 °C, enabling it to fill voids, bind and reinforce coal particles, and reduce exposed surface area. After drying, the hydrogel forms a uniformly smooth surface capable of both coating the coal body and encapsulating individual coal particles. Following the hydrogel treatment, the coal sample retains its original functional groups, indicating that no chemical reactions occur during mixing. Compared with traditional inhibitors, the hydrogel demonstrates superior fire suppression performance, more effectively covering and encapsulating burning coal. It rapidly reduces the temperature to 28 °C by the cooling effect of water evaporation from the hydrogel, and it maintains thermal stability, achieving outstanding fire-extinguishing efficiency.
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Coatings
·
2026
·Vol. 16
·期 1
·89
·
IF 2.8
Hao Liu,Haoyue Shi,Qianyu Ma,Liwen Yin,Yuxin Li,Wei Wang,Huijun Yu,Zuoli He
HighlightsWhat are the main findings?A simple and environmentally friendly preparation method for CoZn-ZIFs was proposed.The novel PMS activator Co-CNTs@NC was successfully obtained via pyrolysis of CoZn-ZIFs.What are the implications of the main findings?The Co-CNTs@NC/PMS system achieved efficient degradation of TCH over a wide pH range.The degradation mechanism dominated by1O2for TCH degradation was confirmed.Zeolite imidazolate frameworks (ZIFs)-derived carbon materials have garnered widespread attention as peroxymonosulfate (PMS) activators in removing antibiotics because of their excellent catalytic performance. However, most carbon materials derived from ZIFs exhibit limited efficacy in treating high-concentration (>10 ppm) antibiotic wastewater, and their synthesis methods are environmentally unfriendly. Herein, we develop a simple and environmentally friendly preparation method to synthesize a new type of nitrogen-doped carbon-supported carbon nanotubes coated with cobalt nanoparticle (Co-CNTs@NC) composites via high-temperature calcination of cobalt–zinc bimetallic ZIFs. The material characterization results confirm the successful preparation of Co-CNTs@NC composites featuring a high specific surface area (512.13 m2/g) and a Co content of 5.38 wt%. Across an initial pH range of 3.24–9.00, the Co-CNTs@NC/PMS catalytic system achieved over 84.17% degradation of 20 mg/L tetracycline hydrochloride within 90 min, demonstrating its favorable pH tolerance. The singlet oxygen-dominated degradation mechanism was confirmed by quenching experiments and electron paramagnetic resonance characterization. This work can provide technical guidance and reference significance for the preparation of metal–carbon materials derived from ZIFs with excellent efficiency of removal of high-concentration antibiotics.
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Water
·
2026
·Vol. 18
·期 3
·321
·
IF 3
Xueying Li,Asfandyar Shahab,Jinxiong Chen,Wei Li,Hua Zhang,Dunqiu Wang,Xinyu Tang,Mingxin Bin,Licheng Peng,Abubakr M. Idris
The widespread use of antibiotics has taken a heavy toll on the environment, which cannot be ignored. Tetracycline antibiotics (TCs), as representative pharmaceutical contaminants, have emerged as a growing environmental concern due to their persistence and potential ecological risks. This study utilized 1,3,5-benzenetricarboxylic acid (BTC) as a functionalizing reagent to synthesize magnetic nanoparticles NiFe2O4-COOH. These were then combined with Zr-MOF to create the magnetic adsorbent designated as NCF@Zr-MOF (where NCF represents carboxyl-functionalized nickel ferrite). Magnetic solid-phase extraction (MSPE) technology was employed to remove two representative tetracycline antibiotics, tetracycline (TC) and chlortetracycline (CTC) from the environment. The Langmuir model fitting revealed maximum adsorption reached 190.85 and 196.32 mg/g for TC and CTC, respectively, both of which conformed to the pseudo-second-order model during the adsorption process with spontaneous, heat-absorbing and entropy-increasing properties. Furthermore, following five cycles of adsorption and desorption, the removal rate for TCs was found to have decreased by 30%, yet the removal of CTCs remained at 95.32%. This adsorbent enables rapid separation via an external magnetic field. With its excellent stability and reusability, NCF@Zr-MOF shows great potential for removing antibiotics from water.
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PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
·
2026
·Vol. 123
·期 3
·e2519305123
·
IF 9.1
Yujie Yang,Huasheng Tian,Aixin Song,Lu Xu,Jingcheng Hao
Assembly of liquid droplets into ordered patterns and architectures has gained great interests in recent years in view of its tremendous prospects in achieving advanced biological, biochemical, and biomimetic functions. Nevertheless, current assembly techniques using lipids or colloidal particles are generally of complicated preparations, long periods, and limited droplet sizes. Here, we develop a simple and ultrafast route to assemble macroscopic water droplets into three reconfigurable structures defined as “connection”, “arrest coalescence”, and “total coalescence”, respectively, in dodecane using jammed nanoparticle surfactant films (termed as “POSS surfactants”) with tunable interfacial properties. Further with the POSS surfactants facilitating a sturdy and nearly instant connection between the macrodroplets, they can act as one kind of compartmentalized 3D printing inks for constructing all-liquid patterns and more integrated, sophisticated architectures capable of functioning as microreactors for transporting cargo molecules over controlled macroscale distances and dimensions. Our study can serve as a useful complement to conventional approaches that are normally used for assembling microsized droplets.
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PubMed
高影响因子
Materials
·
2026
·Vol. 19
·期 3
·554
·
IF 3.2
Naveed Karim,Tin Kyawoo,Saeed Ahmed,Weiliang Tian,Huiyu Li,Yongjun Feng
A carbon-modified attapulgite composite (C-AATP@CTAB) was synthesized via the hydrothermal method using citric acid as the carbon source and cetyltrimethylammonium bromide (CTAB) as a surface modifier for efficient rhodamine B (Rh-B) removal. Carbon modification elevated the composite’s specific surface area (212 m2/g) and negative surface charge (−38.21 mV), significantly enhancing dye adsorption capacity to 666.66 mg/g—nearly double that of unmodified ATP variants (360.4–386.8 mg/g). Kinetic studies confirmed pseudo-second-order adsorption kinetics, attributed to hydrogen bonding and van der Waals interactions between Rh-B and the composite. Under photo-Fenton conditions, C-AATP@CTAB achieved 99.8% Rh-B degradation within 20 min, demonstrating superior catalytic performance in heterogeneous Fenton/photo-Fenton systems. This work establishes a low-cost, high-efficiency adsorbent-catalyst hybrid derived from low-grade attapulgite, offering promising avenues for sustainable wastewater treatment.
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高影响因子
Sustainability
·
2026
·Vol. 18
·期 4
·1870
·
IF 4.1
Guodong Wan,Jiaqi Ding,Ruixin Zeng,Zhenbin Chen,Hua Li,Yujie Cheng,Zongping Wang,Pengchao Xie,Hongwei Zhang
Naproxen (NPX) is a widely occurring, refractory organic contaminant that cannot be removed by conventional water treatment processes. In response to the growing environmental pollution caused by NPX, an innovative and highly efficient green degradation method has been developed, designed on the principles of sustainability to promote long-term ecosystem health and advance a circular economy. In this study, using zero-valent molybdenum as a catalyst in combination with trivalent iron (Fe3+) and hydrogen peroxide (H2O2), we constructed a Mo/Fe3+/H2O2system to treat NPX-contaminated water. The effects of solution pH, H2O2concentration, Fe3+concentration, Mo dosage, and co-existing water-matrix constituents (Cl−, HCO3−, PO43−, NO3−, and humic acid (HA)) on NPX removal were investigated; reactive species were identified; and the reusability of Mo as well as its performance under the continuous-flow condition were evaluated. The results showed that the optimal pH was 3 and the appropriate Fe3+dosage is 100 µM. With 500 µM H2O2, 87.9% of NPX was removed within 7 min, and a moderate increase in Fe3+concentration, together with a suitable H2O2level, enhanced the removal efficiency. HCO3−, Cl−, and HA exerted slight inhibition, whereas PO43−markedly suppressed NPX degradation. Recycling tests and the 6 h continuous-flow treatment demonstrated excellent reusability and stability of Mo. Quenching experiments revealed that HO•and Fe(IV) were the dominant reactive species responsible for NPX degradation.
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MOLECULES
·
2026
·Vol. 31
·期 3
·568
·
IF 5.1
Long Lu,Hongbin Wang,Junfeng Zhao,Mei Zhang,Xuying Zheng,Dapeng Luo,Yongliang Sun,Jinyan Yang
Bamboo powder waste generated from bamboo processing serves as an ideal feedstock for biochar (BC). This study employed potassium hydroxide (KOH) to modify biochar derived from bamboo powder waste, activating it at different temperatures (700 °C, 800 °C, and 900 °C) to yield samples designated KBC-700, KBC-800, and KBC-900, respectively. The physicochemical properties and pore structures of the modified biochar were characterized using SEM, specific surface area and pore size analysis, FT-IR, Raman spectroscopy, XRD, and zeta potential measurements. The adsorption performance of the modified biochar toward PFOA was investigated using kinetic and thermodynamic models, examining the effects of the solution pH, adsorbent dosage, and temperature. Results indicate that KBC-900 exhibits a significantly enhanced specific surface area (up to 2924.7 m2g−1), reduced surface oxygen-containing functional groups, increased carbon skeleton aromatization, and expanded mesoporous channels. Under initial conditions of pH = 3 and reaction temperature of 298 K, KBC-900 achieved a PFOA adsorption capacity of 366.7 mg g−1with a removal efficiency of 91.67%. The adsorption process conformed to pseudo-first-order and pseudo-second-order kinetic models as well as the Freundlich model. The adsorption equilibrium was reached within 12 h, indicating multi-layer adsorption dominated by chemisorption on a heterogeneous surface. Thermodynamic parameters indicate the adsorption reaction is an exothermic process. After five cycles of regeneration, KBC-900 maintained a removal efficiency of 75.69%. This study provides an efficient and reliable solution for removing PFOA from water.
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高影响因子
Crystals
·
2026
·Vol. 16
·期 2
·132
·
IF 2.9
Bo Li,Jiao Sun,Yuxing Lei,Tingting Jiang,Haitao Yang
Flexible dielectric composite materials capable of converting power frequency electric fields into measurable electrical signals are of great significance in the field of non-contact electric field sensing in power systems. In this paper, graphene/nitride heterojunction powders were prepared using three representative nitrides (AlN, BN, and Si3N4) and embedded in polydimethylsiloxane (PDMS) to prepare flexible composite films with a fixed filler content of 5.0 wt%. Scanning electron microscopy (SEM) and energy dispersive spectroscopy (EDS) confirmed the successful formation of the heterojunctions. The results showed that the nitride-related elements (Al, Si and N) were spatially correlated with the graphene-rich regions, thus providing abundant interfacial contact sites. Dielectric spectroscopy (50 Hz–50 kHz) showed that all samples exhibited typical dispersive behavior, with the real part of the dielectric constant decreasing monotonically with increasing frequency, and the loss tangent also decreasing smoothly. Under a 50 Hz parallel-plate electric field, the normalized induced voltage amplitude (PDMS = 1) increases to 1.070 (≈7.0%) for G/PDMS, and further to 1.0723–1.07447 (≈7.23–7.45%) for AlN–G/PDMS, BN–G/PDMS, and Si3N4-G/PDMS. DFT calculations confirm that the graphene/nitride interface has a stable structure with negative binding energies (−2.241, −1.773, and −3.062 eV for AlN–G, BN–G, and Si3N4–G, respectively). Significant charge redistribution and Mulliken charge transfer (0.0538, 0.2047, and 0.0244 eV, respectively) are present at the interface, accompanied by Fermi level density of states modulation and a small bandgap opening (~0.101 eV) in BN–G. These results collectively support the interfacial polarization-driven mechanism and provide a comparative basis for selecting nitride components in graphene-based heterojunction fillers in flexible dielectric electric field-sensing layers.
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高影响因子
Foods
·
2026
·Vol. 15
·期 3
·460
·
IF 5.1
Zhangqin Lai,Mi Tang,Hai Chen,Xiaoyi Tan,Yuhao Zhang
The edible and sensory quality of fermented fish products, particularly the formation of garlic clove-structured muscle flakes (GCMF), play critical roles in consumer acceptance and consumption. Herein, aiming to obtain the optimal technical process, this study systematically explored the generation and dynamic evolution of GCMF structure of fermented mandarin fish, especially the integrity and peeling properties of GCMF, which would profoundly determine the textural properties of fish flesh. Meanwhile, flavor profiles were also concentrated during the formation of GCMF. Specifically, our results showed that the optimal fermentation conditions were 3% salt concentration and 7 days of fermentation at 7 °C. Under these conditions, the physicochemical indicators (moisture, pH, TVB-N) of the fermented fish remained within reasonable ranges and the sensory score; peeling integrity of GCMF and the texture properties reached the highest values. In addition, with the increase in fermentation time, the content of undesirable flavor compounds, especially nonanal and 1-octen-3-ol, gradually decreased. Overall, these findings provide a theoretical framework for the evaluation of GCMF structure and for understanding flavor development in fermented mandarin fish, thereby laying a foundation for improved quality control of fermented fish products.
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高影响因子
RSC Advances
·
2026
·Vol. 16
·期 10
·9085-9091
·
IF 6.1
Yuling Li,Depeng Ma,Fanzhen Kong,Yuanrong Wang,Lianfeng Wu,Zhihui Yang,Haifeng Lu
Schiff base compounds have garnered considerable research interest due to their promising fluorescence properties. In this work, we successfully synthesized two Schiff base compounds as aggregation-induced emission (AIE)-active luminescent agents using a simple and efficient one-step method. The molecular design of these compounds effectively combines the dual advantages of Schiff base structures and AIE effects, retaining the chemical stability and tunable optical properties of Schiff base compounds while exhibiting the unique AIE property of significantly enhanced fluorescence in the aggregated state. Owing to these AIE characteristics, the synthesized compounds show potential for application in biomedicine, including bioimaging, fluorescence sensing, and information security.
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高影响因子
Biochar
·
2026
·Vol. 8
·期 1
·56
·
IF 15.1
Lyu Peng,Huang Xiaoya,Li Lianfang,Jiao Yan
The aging mechanisms of modified biochar for arsenic (As) immobilization at micro/nano-interfacial scales in diverse soils remain poorly understood. Herein, we employed three aging treatments, including natural aging (NA), freeze–thaw cycles (FT), and dry–wet alternation (DW), to simulate the aging behavior of cerium-manganese modified biochar (CMBC) in two As-contaminated field soils. Results indicated that CMBC amendment significantly reduced soil pH by 7.5–16.7%, while simultaneously increasing dissolved organic carbon contents by 10–45%, available phosphorus levels by 11–43%, and the activities of four soil enzymes by 30–320% in comparison to unamended soils. These improvements proved to be most effective under FT-aging, followed by DW-aging and NA-aging. FT-aging also led to the most pronounced reduction in water-soluble As concentrations ranging from 94 to 99%, as well as a decrease in As mobilization coefficients of 38% to 59% in CMBC-amended soils when compared to DW-aging and NA-aging. The superior As immobilization under FT-aging can be attributed to adhesion mediated by Ce–Si crystal nano-bridge between soil microparticles and CMBC matrix, whereas such adhesion was not observed in NA/DW-aged samples. This unique interfacial configuration promoted Ca/Fe-oxide intercalation and amorphous Ce-oxides formation within CMBC, which facilitated the development of As–Fe/Ce crystalline phases. Meanwhile, the synergistic enrichment of metallic and oxygen-containing groups on FT-aged CMBC surface induced the formation of stable As–Ce/Fe–O species and triggered dual redox transformations: (1) Ce/Mn reduction drove bulk As(III) oxidation to As(V), and (2) Fe(0) oxidation mediated partial reduction of As(V)/As(III) to inert As(0). Notably, CMBC-amended red soil exhibited preferential As immobilization during aging due to the tighter adhesion between nano-CMBC and soil colloids. This enhanced adhesion strengthened the bonding of Ce/Fe-oxides with As and intensified the oxidation of As(III) to As(V) through increased Ce/Mn reduction. This study provides innovative microscale mechanistic insights into the aging behavior of modified biochar for remediating diverse soils contaminated with potentially toxic elements. Graphical
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JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
·
2026
·Vol. 46
·期 9
·118237
·
IF 6.3
Can Jin,Danyang Shen,Youjie Hua,Lei Gu,Guanbo Yao,Hongping Ma,Chenxia Li,Degang Deng,Renguang Ye,Shiqing Xu
Ceramic-composite phosphor-in-glass films (PiGFs) are excellent candidates for high-power and stable Laser-driven (LD) lighting due to their excellent thermal management. However, the high temperatures in existing PiGF in-situ crystallization processes can damage the phosphor structure, limiting their development for high color rendering index (Ra) applications. In this study, a novel ceramic-composite tricolor PiGF system is co-sintered at a low temperature of 600 °C using a ZnO-Li 2 O-SiO 2 (ZLS) sintering matrix and incorporates β-Zn 2 SiO 4 glass-ceramic as a functional phase. This process achieves enhanced light scattering and thermal management while preserving the integrity of the tricolor phosphors. Through process optimization, the PiGF achieved bright white light with a luminous flux (LF) of 1361 lm @7.08 W and an Ra of 84.5. Finally, the PiGF was assembled into a laser lighting prototype, exhibiting an optimal balance between luminous intensity and color quality, rendering this color converter highly promising for high-quality laser lighting applications.
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危险品化学品经营许可证（带存储）