SEPARATION AND PURIFICATION TECHNOLOGY
·
2026
·
IF 9
Yi Xu,Gao Liu,Fukun Liu,Yurun Zhao,Qichao Ran
Accidental spills of hazardous and flammable liquids, such as aviation kerosene and industrial lubricants, pose severe environmental and safety risks, especially under extreme temperature conditions where conventional cleanup materials fail. Existing adsorbents are plagued by a performance trilemma, lacking the combined mechanical resilience, high adsorption capacity, and thermal stability required for effective remediation. Here, inspired by the human capillary system, we developed a biomimetic polyimide/polybenzoxazine (PI/PBOZ) aerogel with a layered “fiber-node-pore” structure. Among them, flexible PI nanofibers constitute the continuous scaffold (fibers, mimicking the compliant vascular walls), while rigid crosslinked PBOZ domains selectively localize at fiber junctions to function as “chemical rivets” (nodes, formed via strong intermolecular hydrogen bonding between phenolic hydroxyl groups on cured PBOZ and carbonyl groups on PI). The large interconnected voids between these riveted fibers form open macropores (pores, emulating the luminal channels for fluid transport). The optimized aerogel demonstrates an unprecedented combination of ultralow density (5.2 mg cm −3 ), super-resilience (98% recovery after 90% strain), and massive oil uptake (up to 276 g/g for high-viscosity oils). Crucially, it maintains functionality after direct flame exposure and in cryogenic environments (−140 °C), with a low thermal conductivity of 0.0248 W m −1 K −1 . The material's reusability is demonstrated through combustion-based regeneration, enabling complete oil removal without generating secondary liquid waste. This strategy establishes a robust and generalizable route to high-performance porous materials for mitigating hazardous oil spills and managing thermal risks in extreme industrial and aviation environments.
✓ 已验证
产品关联
DOI
高影响因子
PHYSICS AND CHEMISTRY OF THE EARTH
·
2026
·
IF 4.6
Zuhur J.Q. Ali,Tawfik A. Saleh,Abbas A. Abdullahi
Polyamide/graphene oxide nanocomposite membrane developed for wastewater treatment.Newly synthesized and modified with graphene oxide. • Achieved >90% rejection of heavy metals and ∼99% removal of hydrocarbons. • Promising membrane for sustainable purification of complex wastewater streams. The contamination of wastewater with heavy metals poses significant environmental and health risks, necessitating the development of effective filtration technologies. While existing membrane filtration methods have shown promise, there remains a gap in the efficient removal of pollutants, particularly in complex wastewater mixtures. In this study, a novel polyamide-functionalized graphene oxide (GO) nanocomposite membrane was developed to address this challenge. The membrane was synthesized by integrating GO nanoparticles onto a substrate, followed by surface functionalization. The filtration performance was comprehensively evaluated through various techniques, including Fourier-transform infrared spectroscopy (FT-IR), transmission electron microscopy (TEM), atomic force microscopy (AFM), field emission scanning electron microscopy (FE-SEM), and X-ray diffraction (XRD). The results demonstrated exceptional removal efficiencies for heavy metals, with rejection rates exceeding 90% for cadmium, barium, and chromium ions. The study also explored the membrane's performance for separating salts, such as carbonate and sulfate ions, and organic pollutants showing a good performance for the rejection of multipollutants. These findings demonstrate the potential of the developed membrane for efficient heavy metal removal in complex wastewater systems. A visual representation of various contaminants found in industrial wastewater and their removal using the reported membrane. Download: Download high-res image (319KB) Download: Download full-size image
✓ 已验证
产品关联
DOI
高影响因子
Journal of Environmental Chemical Engineering
·
2026
·Vol. 14
·期 5
·124157
·
IF 7.5
Junyi Shi,Hongjuan Wang,Peng Liu,Dehai Yu,Dandan Ji
PLA-based composite aerogels with high oil selectivity, good reusability, and gravity-driven transport capability are promising materials for oily-water treatment and spill remediation. However, many high-performance oil/water separation aerogels still rely on non-degradable matrices or fluorinated surface modifiers. Herein, ZIF-71 nanoparticles were incorporated into a polylactic acid (PLA) aerogel to construct a hydrophobic capillary-gating network through solution blending, water-assisted thermally induced phase separation, liquid-nitrogen freezing, and freeze-drying. The chlorinated imidazolate framework contributed hydrophobic/oleophilic domains, polyhedral roughness, and textural porosity, while the PLA matrix provided a lightweight biodegradable skeleton. Compared with pristine PLA, the optimized PZ71–3 aerogel increased the water contact angle from 114° to 136°, tensile strength from 0.088 to 0.166 MPa, elongation at break from 10% to 25%, and total pore volume from 0.0066 to 0.0091 cm³ g⁻¹ , while showing a BJH average pore diameter of 10.8 nm. The aerogel resisted a water head of 14.5 cm, selectively captured both floating heptane and sinking CCl₄, achieved oil recovery efficiencies of 98.2–99.2% with gravity-driven oil fluxes of 5300–17,200 L m⁻² h⁻¹ , and retained stable oil sorption capacity and flux over 20 cycles. Comparative benchmarking shows that PZ71–3 offers a balanced performance profile among MOF/polymer and biodegradable-polymer aerogels. This work demonstrates ZIF-71-induced hydrophobic capillary gating as an effective fluorine-free strategy for recyclable PLA-based sorbents for oil/water separation.
✓ 已验证
产品关联
DOI
高影响因子
POLYMER DEGRADATION AND STABILITY
·
2026
·
IF 8.1
Yong-Qi Liang,Yu-Quan Chen,Ting Wang,Sheng-Xu Zhao,Wenli An,Zhi-Cheng Fu,Jinni Deng,Ming-Jun Chen
Rigid polyurethane foam (RPUF), a widely used building insulation material, is intrinsically flammable. Adding flame retardants or fillers can address this issue, yet the key challenge lies in improving flame retardancy without sacrificing thermal insulation and mechanical properties. Here, chemically cross-linked and self-intumescent aerogel beads were designed and incorporated into RPUF via an in-situ packing and foaming method. In this method, the RPUF matrix firmly bonds the aerogel beads, resulting in “sea-island” structures. Notably, enabled by rigid crosslinked aerogel beads with excellent compatibility, G 5 M 2 P 1 /RPUF achieves a compression modulus of 15.62 MPa and strength of 3.29 MPa. These values represent increases of 101.3% and 265.6% over neat RPUF, surpassing most flame-retardant RPUF. Besides, benefitting from the “sea-island” structures, the G 5 M 2 P 1 /RPUF exhibits a thermal conductivity value of 28.1 mW -1 -1 , which is 21.5% lower than that of the pure RPUF. Compared to neat RPUF, G 5 M 2 P 1 /RPUF exhibits superior heat and smoke suppression with a 36.2% reduction in peak heat release rate and a 43.2% reduction in smoke production rate. Even after 3 days at 100% relative humidity, the density, mechanical modulus, strength, and LOI of the composite show almost no change, demonstrating good performance durability. This simple packing foaming strategy effectively overcomes the trade-off between fire safety and thermal performance, holding great application potential.
✓ 已验证
产品关联
DOI
高影响因子
Small
·
2026
·
IF 11.8
Hancong Zheng,Zhefeng Liu,Tianhao Chen,Yongbin Zhao,Aihua Chen
Driven by the rapid development of portable and miniaturized electronics, flexible polymer-based piezoelectric nanogenerators (PENGs) have attracted significant attention for stable energy harvesting and self-powered sensing. However, developing materials that simultaneously combine high elasticity with superior piezoelectric output remains fundamentally challenging, owing to the intrinsic trade-off between mechanical compliance and electromechanical coupling. Herein, we demonstrated a sandwich-structured piezoelectric elastomer (STPPE) featuring a porous thermoset polyurethane (TSPU)/P(VDF-TrFE)/PZT core (TPP) and solid TSPU/P(VDF-TrFE) skin layers through a combined approach of physical foaming and laminated structural engineering. By tuning the foaming agent content and curing temperature, the porous morphology can be effectively modulated to optimize the porosity, electroactive phase (β-phase) content, and mechanical properties. The STPPE exhibited a substantially enhanced piezoelectric performance, achieving a V oc of 62.1 V, a Q of 11.6 nC, a sensitivity of 3.82 V·kPa −1 under 13 N. At 100 N, the output surged to 80.1 V and 44.7 nC, respectively. A power density of 2.6 µW·cm −2 was achieved, alongside a highly stable electrical output over 10 000 cycles, demonstrating the promising potential for practical applications. This work presents a robust strategy for fabricating high-performance, lightweight, and elastic piezoelectric composites for next-generation wearable electronics and self-powered sensors.
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Advanced Optical Materials
·
2026
·
IF 7.2
Boxi Meng,Yunqi Wang,Yan Fang,Ke Cheng,Xiaohong Jiang,Zuliang Du
A high-quality quantum dots (QDs) layer is crucial for the commercialization of quantum dot light-emitting diode (QLED) devices. However, current fabrication techniques cannot simultaneously achieve monolayer coverage, ordered arrangement, and large-area scalability. Herein, we develop a novel strategy of continuous stepwise self-assembly for QDs monolayer integrated the air-liquid interfacial assembly technology with continuous line-ink-supply and Langmuir-Schaefer (LS) technology, which the QDs can be finely to assemble into large area ordered and dense QDs monolayer film at the trailing edge of the flow. The ordered QD monolayers can be repeatedly transferred and stacked to accurately control the thickness of the luminescent layer in QLED devices. Green QLED based on this monolayer film reaches a high EQE of 23.85%. Furthermore, the optimized trilayer device exhibits negligible efficiency roll-off, retaining an EQE above 18% and a luminous efficacy of 60 lm W −1 at a luminance of 200 000 cd m −2 . This methodology also shows preliminary scalability potential. We achieved a trial fabrication of large-area QD films of 210 cm 2 and further constructed corresponding QLED devices with an emission area of 1.5 cm × 1.5 cm as an initial exploration.
✓ 已验证
产品关联
DOI
高影响因子
Materials Horizons
·
2025
·
IF 10.7
Guang Yang,Yixuan Su,Ying Liu,Hanbing Ma,Vitali Lipik,Jing Yan,Xupin Zhuang
Self-healing flexible triboelectric generators (TEGs) are emerging as promising candidates for sustainable wearable electronics due to their inherent ability to recover from damage. However, precise interlayer alignment in multilayer TEGs to achieve complete functional recovery is challenging. Herein, a bioinspired durable and self-healing TEG with a dynamic layer-to-layer realignment capability is developed, which is self-driven by a reversibly actuated polyurethane (PU) substrate integrated with a healable electrode and triboelectric layers. By precisely regulating its multiphase network, the PU achieves not only an exceptional self-healing capability but also a two-way shape actuation (16.5% in reversible strain). Under the synergistic effect of dual functionalities, the PU substrate can generate reversible force to realign different functional layers and trigger geometric restoration in the TEG device, thereby maximizing both structural and functional recoveries exceeding 97%. Such aligning–healing effect maintains good repeatability in multiple healing cycles due to reversible actuation, significantly superior to that using manual alignment. Combined with mechanical robustness and high electrical outputs, the potential of the TEG as a durable self-powered sensor is demonstrated, which maintains reliable electrical performance even under complex deformations and damage. This work opens a new avenue for developing self-healing multilayer electronics with stable functional recovery.
✓ 已验证
产品关联
DOI
PubMed
高影响因子
FLUID PHASE EQUILIBRIA
·
2025
·
IF 2.7
Tao Jia,Jinpeng Yang,Jia Yu
Knowledge of the accurate pρTx behavior of hydrocarbon mixtures at different temperatures and pressures is indispensable for simulating reservoir behavior, optimizing recovery processes, and predicting the thermodynamic properties. The compressed liquid densities of n -pentane(1) + n -decane(2) binary mixtures with mole fraction x 1 = 0.1024, 0.2978, 0.5145, 0.7036, and 0.9113 were measured using a vibrating tube densimeter at temperatures from 283 K to 363 K, and pressures up to 100 MPa. The relative uncertainty for density measurement of n -pentane + n -decane binary mixtures of 0.99 mole fraction purity is 0.1%. The densities of binary mixtures were correlated with the modified Tait equation, and the absolute average deviations of the experimental and calculated values were 0.005%, 0.005%, 0.006%, 0.008%, and 0.009%, respectively. In addition, the isothermal compressibility, the isobaric thermal expansivity, and excess molar volume were calculated from experimental densities.
✓ 已验证
产品关联
DOI
高影响因子
Small
·
2025
·
IF 12.1
Qiong Zuo,Lingyu Zhao,Zengbai Ouyang,Jiaxin Guo,Yongzhi Liang,Jinsong Leng
Solvent-responsive shape memory polymers (SR-SMPs) are smart materials that can retain their original shape when exposed to solvents. However, most reported SR-SMPs show slow shape recovery and lack multi-solvent responsiveness, which greatly limits their practical use. Here, a novel SR-SMP is introduced by creating a dual-component network comprising aliphatic polyurethane acrylate (AUA) and polystyrene-block-polyisoprene-block-polystyrene (SIS). The AUA phase provides mechanical stability and prevents excessive swelling, while the SIS phase, compatible with low-polarity solvents, promotes plasticization and speeds up shape recovery. This results in excellent shape memory performance when exposed to various solvents. The incorporation of carbon nanotubes (CNTs) and carbon black (CB) further accelerates shape recovery to about 20 s, which is over an order of magnitude faster than previously reported SR-SMPs. Based on these properties, a dual-mode sensor is developed using the SR-SMP, capable of providing both visual and electrical responses when exposed to petroleum ether vapor. The visual shape change offers an intuitive indication, while the electrical signal delivers a more accurate output, with a detection limit of 0.013 g·L −1 and a sensitivity of 1519.8 L·g −1 . The as-developed SR-SMP exhibits great promise in the creation of next-generation solvent-driven smart materials.
✓ 已验证
产品关联
DOI
PubMed
高影响因子
REACTIVE & FUNCTIONAL POLYMERS
·
2025
·
IF 5.1
Yuntong Li,Long Li,Caiying Bo,Lihong Hu,Xiaohui Yang,Yonghong Zhou
Phenolic foam (PF) has gained extensive applications in architectural insulation, petrochemical industries, and aerospace engineering due to its exceptional thermal resistance. However, its practical implementation was hindered by inadequate mechanical strength, pronounced brittleness, and reliance on non-renewable petroleum-derived precursors. The substitution of lignin and its derivatives for phenol represented a sustainable innovation that synergistically enhanced foam performance and cost-effectiveness, while significantly minimizing environmental pollution and fostering the high-value conversion of renewable biomass resources. In this study, enzymatic hydrolysis lignin was functionalized by introducing nitrogen (N), phosphorus (P), and silicon (Si) moieties into its side chains, yielding an intrinsic lignin-based flame retardant (NPSi-L). Subsequent partial replacement of phenol with NPSi-L enabled the fabrication of NPSiLPFX composites. The modified lignin exhibited elemental compositions of 4.26 % N, 4.25 % P, and 6.65 % Si, with its char residue rate increasing to 69.18 %. The comparative study demonstrated that NPSiLPFX exhibited significantly enhanced fire resistance, with its LOI reaching up to 58.5 % and compressive strength attaining 0.22 MPa. Furthermore, peak heat release rate (PHRR) and total heat release (THR) were reduced by 28.68 % and 51.54 %, respectively, while fire growth index (FIGRA) and total smoke production (TSP) decreased by 55.14 % and 99.26 %, respectively. The composite exhibited remarkable improvements in fire safety. Analytical characterization of char residues through morphological and elemental composition studies elucidated the cooperative flame-retardant mechanism of the N-P-Si ternary system. This study established an eco-friendly paradigm for developing high-performance phenolic foams that synergistically addressed fire hazards and structural deficiencies in engineering applications.
✓ 已验证
产品关联
DOI
高影响因子
ACS Applied Polymer Materials
·
2026
·
IF 5.2
Jianfeng Li,Ping Wang,Jin Zhang,Jiajia Jiang,Shujun Li,Wenjing Xiang,Mingjun Chen,Shuang Xia,Guoxing Sun,Zhicheng Fu,Ting Wang,Wenli An,Jinni Deng
Flexible polyurethane foam (FPUF), with low cross-linking density and open-cell structure, is intrinsically hydrophilic and prone to structural collapse. This inherent vulnerability is exacerbated by the incorporation of hydrophilic flame retardants like melamine (MEL), rendering FPUF vulnerable to water erosion and chemical attack, with a rapid loss of both flame retardancy and mechanical integrity. To address these challenges, a surfactant (F4) with both hydrophobicity and flame retardancy was prepared, which not only could be used as a foam stabilizer in FPUF but also can serve as a durable hydrophobic shield to the foam surface, owing to the low surface energy of its fluorinated groups and hydrogen bonds formed by phosphorus in surfactant F4. Furthermore, blocked isocyanate (BI), as a post-cross-linker, enhances chemical cross-linking density to improve water resistance, effectively reinforcing the FPUF structure while preserving its open-cell architecture. Therefore, with the combined effect of stable hydrophobic protection and enhanced chemical cross-linking, 1F4–30MEL-3BI-FPUF, with just 0.53 wt % of F4, demonstrates optimal comprehensive performance in flame retardancy (limiting oxygen index = 26.5%), hydrophobicity (water contact angle = 122.5°), and mechanical properties (compressive strength = 14.8 kPa), as well as good absorption capability and excellent oil–water separation. Notably, the retention of these properties after 24 h of immersion in water, strong acid, strong alkali, saturated NaCl, and EtOH confirms its exceptional short-term stability under harsh conditions. This study proposes a straightforward and scalable strategy for fabricating high-performance FPUF.
✓ 已验证
产品关联
DOI
高影响因子
FOOD CHEMISTRY
·
2026
·
IF 10.4
Hongyuan Zhao,Siyuan Wang,Meixi Zhong,Jiayi Xiao,Wenjie Guan,Haiwei Ren,Yuan Liu,Xiaoxiao Feng
This study demonstrates flavor compound variation and the stable pattern of Xanthoceras sorbifolium Bunge Black Tea (XSBT) at different processes through multi-omics techniques. The dominant aroma compounds were identified as alcohols, aldehydes, esters, and ketones during processing and correlation analysis preliminarily shows that fermentation is the decisive stage for quality formation, as evidenced by the contents of tea polyphenols (84.98 ± 0.39 mg/g), total flavonoids (7.30 ± 0.06%) and water extracts (32.57 ± 0.45%). The flavor evolution of XSBT was mainly formed through lipid oxidation and the Maillard reaction during fermentation stage by the content alternations of aldehydes and ketones. Metabolomic interrogation of the fermentation stage further disclosed that α-linolenic acid metabolism constitutes the pivotal pathway, yielding 1-penten-3-ol and 1-penten-3-one (ROAV = 57.11) as key volatile metabolites, which reveals a stable and active lipid metabolism during fermentation. These findings could provide material, pathway and key component support for improving XSBT fermentation quality.
✓ 已验证
产品关联
DOI
PubMed
高影响因子
危险品化学品经营许可证（带存储）