JOURNAL OF COLLOID AND INTERFACE SCIENCE
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2026
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IF 9.7
Yinuo Dong,Xu Zhang,Haoguo Yue,Libo Wang,Jinsheng Zhao,Fei Zhao,Zhengrong Wei,Junhong Zhang
Donor-π-acceptor (D-π-A) conjugated polymers are promising photocatalysts for water splitting. Their π-bridges promote intramolecular charge transfer (ICT), leading to better charge separation and enhanced activity. However, further improvements can be achieved by carefully choosing donor units and optimizing building block combinations. In this study, five conjugated porous polymers (CPPs) were synthesized via Still/Suzuki coupling reactions, including ternary polymers with varying donor-to-acceptor ratios and binary polymers for comparison. Photocatalytic hydrogen production (PHP) tests showed that the ternary polymer TATTS-1 achieved the highest hydrogen evolution rates (HER) of 130.56 and 172.75 mmol g −1 h −1 under visible light and full arc irradiation, respectively. Kelvin probe force microscopy (KPFM) and femtosecond transient absorption (fs-TA) spectroscopy measurements confirmed that the adoption of the D-π-A configuration can facilitate charge separation, suppress recombination, and enhance transfer efficency, which was also confirmed by theoretical calculations. These findings underscore the superior performance of the D-π-A configuration over conventional Donor-acceptor (D-A) systems in designing efficient polymer-based photocatalysts, and highlighting the synergy of triazatruxene (TAT) donor, thiophene π-bridge, and dibenzothiophene sulfone (BTDO) acceptor in building efficient hydrogen evolution photocatalysts.
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PubMed
高影响因子
SEPARATION AND PURIFICATION TECHNOLOGY
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2026
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IF 9
Min Yin,Lihua Chen,Yanyu He,Shaopeng Chen,Wenyu Zheng,Qi-Meige Hasi
Solar-driven interfacial evaporation holds significant potential for treating oily wastewater. Traditional evaporators may become clogged due to residues or contamination caused by the release of volatile organic compounds (VOCs). We have developed a novel evaporator that combines oil-water interfacial evaporation with photocatalytic removal of VOCs. In experiments using simulated seawater, oily wastewater, phenol (PNP), and p-nitrophenol (PhOH)-contaminated water, we evaluated water evaporation efficiency and VOCs degradation. The temperature gradient on the aerogel surface, combined with interfacial evaporation and photocatalysis, enhanced evaporation efficiency. The oil-modified surface prevents oil blockage, while the photocatalytic coating effectively removes VOCs and enhances thermal regulation. Under 1 kW m −2 solar irradiance, the O-PPy/PTh-PI/MXene aerogel treated 10% oil-contaminated wastewater with an evaporation rate of 1.37 kg m −2 h −1 and an evaporation efficiency of 89.75%. Interface evaporation desalination treatment of source water contaminated with PNP and PhOH achieved a TOC removal rate exceeding 98%. An expanded aerogel evaporator array produced approximately 9.21 kg/(m 2 ·d) of pure water under actual sunlight. This successful demonstration highlights the evaporator's efficient evaporation potential at the interface for treating oily wastewater, showcasing its broad application prospects.
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SENSORS AND ACTUATORS B-CHEMICAL
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2026
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IF 7.7
Wenjing Zhao,Zhongyu Xiao,Xin Liu,Yuanyuan He,Nianbing Zhong
A reflective optical fiber sensor coated with zeolitic imidazolate framework-8/nitrogen-doped porous carbon (ZIF-8/NPC) is developed in this study for the online, rapid, and selective detection of acetone vapor. The sensor includes an optical fiber and an acetone-sensitive unit. The sensing unit is constructed on a polymethyl methacrylate substrate with a linear groove, where inner groove walls are coated with a Ag film and ZIF-8/NPC composite layer, which forms a light transmission channel. A theoretical sensing model is established on the principle that acetone absorption increases the refractive index of the sensing film, and this leads to enhanced light absorption at 256 nm. Effects of the ZIF-8/NPC composition, coating thickness, and number of light reflections on sensor performance are investigated systematically. The sensor achieved selective and accurate acetone detection under optimized conditions of ZIF-8/NPC coating thickness of 20 μm, three reflection cycles within the sensing channel, ambient temperature of 20–30 °C, and relative humidity of 50–60 %. This sensor exhibited a sensitivity, detection limit, response time, and maximum relative error of 0.000544 AU/ppm, 5.5 ppm, 250 s, and 2.6 %, respectively. The sensor demonstrated high selectivity toward acetone and long-term stability. This study provides a new approach for in situ and rapid acetone monitoring in environmental applications and contributes to advancing optical fiber sensing technology.
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POLYMER DEGRADATION AND STABILITY
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2026
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IF 7.4
Xiaolu Sun,Shilin Wang,Siyuan Dong,Xi Chen,Xinbo Dong,Yang Wang,Xigao Jian,Cheng Liu
With the rapid development of the aerospace field, higher requirements have been put forward for the heat resistance of thermosetting resins. In this study, an asymmetrical phthalonitrile monomer containing Schiff base moiety (SchB-PN) was synthesized by a two-step method with N -4′-hydroxybenzylidene-4-hydroxyaniline (N-hy) and 4-nitro- o -phthalonitrile. The structure and properties of SchB-PN were characterized by ¹H NMR, 13 C NMR, 1 H- 1 H gCOSY, HRMS, FTIR, XRD, differential scanning calorimetry (DSC), thermogravimetric analysis (TGA), and rheology. SchB-PN had a relatively low viscosity of 0.179 Pa·s when molten, and due to the presence of imine and cyano groups, SchB-PN resin exhibited self-curing characteristics. Furthermore, SchB-PN resins were cured with different curing agents and curing processes. It was found that SchB-PN-APn-400 resin cured by SchB-PN and p -aminobenzonitrile (APn) at 400 °C demonstrated excellent thermal stability and thermal oxidative stability, with the temperature of 5% weight loss ( T 5% ) of 530 °C in nitrogen and 534 °C in air, and the residual carbon rate was 74.9% at 800 °C in nitrogen atmosphere. The curing mechanism of SchB-PN-APn resin and the cooperative curing mechanism of imine bonds and cyano groups were studied and clarified through FTIR, in-situ infrared technology, SEM and EDS. In addition, the thermal stability and pyrolysis mechanism of SchB-PN were systematically investigated by TGA and TG-FTIR techniques, as well as the compensatory effect of the Schiff base bond breaking and reconnection during the degradation process. The relevant data and analysis results highlight the potential application prospects of SchB-PN-APn resin in aerospace and high-performance engineering fields.
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Journal of Future Foods
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2026
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IF 7.2
Yixiu Tian,Yaru Duan,Tianhua Bai,Rongyan An,Zhaozhaoyang Yang,Bo Zhang,Di Zhang,Yunwei Zhang,Wen Ma
Sulfur dioxide (SO 2 ) has long been an effective additive in winemaking, yet its use raises health concerns for sensitive individuals. While oenological tannins are increasingly recognized for their color-stabilizing and antioxidant effects, their potential to replace SO₂ throughout the winemaking process and their broader impacts on wine quality and safety have not been systematically studied. In this work, we present the first comprehensive evaluation of grape and oak tannins as SO₂ alternatives at multiple stages of both white and red wine production. By adding specific doses of tannins before alcoholic fermentation (0.3 g/L), after alcoholic fermentation(0.4 g/L), and after malolactic fermentation (0.4 g/L), we assessed their effects on wine chemistry, sensory attributes, and health-related parameters. Our findings demonstrated that tannin addition effectively reduced the need for SO 2 , supported a smooth fermentation process, and significantly decreased the production of volatile acidity ( p < 0.05). Wines treated with tannins showed no significant differences in redox potential compared to those treated with SO 2 ( p > 0.05). Notably, the addition of grape tannins to pre-alcoholic fermentation in red wines significantly enhanced the aroma profile (ethyl esters and higher alcohols) and reduced the formation of methionol. Sensory analysis revealed no significant differences in palate attributes between the tannin and SO 2 -treated wines ( p > 0.05). Importantly, the concentration of methanol, a health-related byproduct, was not significantly affected by tannin treatment ( p > 0.05). Overall, these results highlighted the potential of oenological tannins as a viable alternative to SO 2 in winemaking. And it was the first time to establish the feasibility and benefits of using 0.3 g/L grape tannins as practical SO₂ substitutes, with pre-fermentation grape tannin addition emerging as the most promising strategy for further development.
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高影响因子
Nature Catalysis
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2026
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IF 44.6
Wang Luqi,Hao Yixin,Pan Jinliang,Bi Suwan,Hung Sung-Fu,Peng Kang-Shun,Wang Ai-Yin,Chen Tsung-Yi,Li Shaoxiong,Ling Chongyi,Zhang Ying,Li Linlin,Hu Feng,Zhou Xiong,Chen Han-Yi,Wu Kai,Wang Jinlan,Wu Yuping,Peng Shengjie
Developing Earth-abundant anode electrocatalysts for proton-exchange-membrane water electrolysis (PEMWE) to replace iridium is crucial for reducing hydrogen production costs but their poor acid stability remains a major challenge. Here we prepare a lanthanum and calcium co-doped Co 3 O 4 catalyst, which can tune water–surface interactions to suppress cobalt dissolution, thereby enhancing stability. Lanthanum with weak water affinity is introduced onto the Co 3 O 4 surface to construct atomic sites with specific water–molecule interactions (CoLa-SWMI). The CoLa-SWMI reconstructs the interfacial water environment and moderately alleviates the polarization of the metal–oxygen bond induced by hydrogen bonding with water molecules, thereby extending catalyst lifetime. Moreover, the leaching of surface calcium species creates highly active coordinatively unsaturated cobalt sites, which enhance catalytic activity (CoLaCa-SWMI). PEMWE using a CoLaCa-SWMI anode operates stably for 830 h at 1.0 A cm −2 . This study provides an approach to designing non-noble-metal electrocatalysts, potentially reducing reliance on rare metals in PEMWE.
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APPLIED CATALYSIS B-ENVIRONMENTAL
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2026
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IF 21.1
Qi Zhou,Jiale Wang,Jiaojiao Song,Hao Yan,Ruiyan Wang,Tiantian Luo
A mesoporous N-doped carbon bearing atomically dispersed Fe (Fe 1 -N-Cv) was created that uniquely couples carbon-vacancy and pore engineering to switch the electron spin state of highly accessible Fe sites from low-spin (t 2 g 5 e g 0 ) to high-spin (t 2g 3 e g 2 ), thereby unlocking superior Fenton-like activity. The material was synthesized by pyrolyzing Fe-encapsulated ZIFs under negative pressure, whereby the built-in pressure gradient simultaneously enlarged pores and generated carbon vacancies. Fe 1 -N-Cv degrades pollutants 3.89-fold faster than conventional Fe 1 -N-C, maintains > 99 % tetracycline removal and > 95 % mineralization during 240 min of continuous flow operation, operates over a pH range of 3.0–9.0, and shows stable recyclability and strong resistance to coexisting matrix constituents. Mechanistic analysis identifies a non-radical regime dominated by singlet oxygen, assisted by high-valent Fe-oxo and electron-transfer pathways, while DFT calculations show that carbon defects accelerate interfacial charge transfer and lower the free-energy barrier for PMS activation. Synergistic engineering of carbon vacancies and pores thus emerges as a powerful lever to modulate both the geometric accessibility and electronic spin state of single-atom Fe centers, directly translating into markedly enhanced Fenton-like performance. This strategy offers a promising approach for boosting single-atom-catalyst activity and robustness, advancing their practical deployment in continuous environmental remediation technologies.
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高影响因子
POLYMER
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2026
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IF 4.5
Menglin Wu,Meng Jia,Bo Xu,Lijie Qu,Yuhao Li,Lei Yang,Lijun Qian
Conventional thermosets are difficult to reprocess, recycle and reshape due to their permanent covalent cross-linking, and their flammability limits a wide range of applications. Herein a novel thermally switchable polymer, capable of transitioning from a thermo-reversibly self-healing polymer (re-PO-co-UPR) into an irreversibly cross-linked polymer (i-PO-co-UPR) with higher flame-retardancy, has been built through forming covalent adaptable networks (CANs) by Diels-Alder (DA) reaction between the unsaturated double bonds of polyester (UPR) and furan groups of the synthesized flame retardant cross-linker (POFA). Re-PO-co-UPR presents excellent self-healing properties and reprocess-ability owing to DA/rDA reactions which proceeds in the melt, with no need for any solvent, catalyst or additive. At higher temperatures, irreversible alkene addition reactions of UPR are triggered, forming irreversibly cross-linked conventional thermosets i-PO-co-UPR, which shows outstanding flame retardancy with 29.6% limiting oxygen index (LOI) and UL-94 V-0 rating. Such a convenient preparation and flexible structure design of CANs has successfully broken the boundary between thermoplastic and thermoset materials, so that they acquired self-healing properties and can be recycled through de-crosslinking process after being discarded. A prime example for the development of renewable thermoset materials has been presented.
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高影响因子
CHEMICAL ENGINEERING SCIENCE
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2026
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IF 4.3
Zhijun Zhou,Weilong Zhang,Dun Wang,JieQiong Wang,Zhongxin Liu
Achieving flame retardancy together with high transparency and mechanical integrity remains difficult for epoxy resins (EP), particularly when polymeric flame retardants trigger phase separation and light scattering. Here, a DOPO-derived macromolecule (HEPOMA-DPMEA) was synthesized via solution copolymerization and used to modify EP. At 10 wt% loading, EP/HEPOMA-DPMEA achieves UL-94 V-0 and an LOI of 36.8% while retaining high optical clarity (92.5% transmittance at 800 nm for 3.0 mm specimens) and markedly improving tensile strength by 62.5% to 155.4 MPa. Cone calorimetry further shows a 42.3% reduction in peak heat release rate, accompanied by an increased water contact angle (97.0°). TG-FTIR and char analyses support a dual-phase flame-retardant action involving phosphorus-containing volatiles in the gas phase and the formation of a more protective char layer in the condensed phase. This work provides a macromolecular flame-retardant strategy to mitigate the transparency–mechanical–fire-safety trade-off, enabling durable transparent epoxy materials for protective coatings and electronic encapsulation.
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高影响因子
SENSORS AND ACTUATORS B-CHEMICAL
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2026
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IF 7.7
Li Chen,Ya-Jie Wang,Xiao-Qian Kuang,Yu-Qing Zhang,Tian-Yu Yang,Min Li,Zheng Guo
Benzene, toluene, ethylbenzene, and m-xylene (BTEX) are typical volatile organic compounds (VOCs) that pose serious threats to human health. However, their inherent chemical stability and low reactivity render selective and sensitive detection particularly challenging. Herein, we report a p–n heterostructured gas sensing material comprising hollow Co 3 O 4 nanocubes embedded in porous ZnO nanotubes (Co 3 O 4 /ZnO NTs), fabricated via coaxial electrospinning and Metal-organic frameworks (MOFs)-derived pyrolysis. The engineered architecture combines the large surface area and porosity of ZnO nanotubes with the abundant active sites of Co 3 O 4 , facilitating efficient gas diffusion and charge transport. The resulting sensors exhibit markedly enhanced responses to BTEX gases, particularly ethylbenzene. At 50 ppm, the responses to benzene, toluene, ethylbenzene, and m-xylene are 2.3, 12.2, 46.5, and 30.9 times higher, respectively, than those of pristine ZnO nanotubes. In addition, the sensor demonstrates excellent selectivity for ethylbenzene and stable long-term operation. This work demonstrates an effective strategy for tuning oxide heterojunctions toward high-sensitivity, selective detection of aromatic VOCs, offering practical value for environmental monitoring.
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高影响因子
Journal of Energy Storage
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2026
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IF 9.8
Hui Li,Jinyi Liu,Jiaming Liu,Wenke Lu,Lan Yang,Zihui Feng,Yue Liu
The increasing demand for fast, efficient, and durable energy storage systems highlights the need for electrode materials that can simultaneously deliver high energy and power densities. Here, we report a NiMo 3 S 4 /Ti 3 C 2 T x MXene composite synthesized through a two-step hydrothermal strategy, which couples the high pseudocapacitance of NiMo 3 S 4 with the excellent electrical conductivity and layered structure of Ti 3 C 2 T x MXene. The composite delivers a remarkable specific capacitance of 1443.6 F·g −1 , more than twice that of pristine NiMo 3 S 4 , benefiting from accelerated charge-transfer kinetics and the exposure of abundant electroactive sites. When assembled into an asymmetric supercapacitor, the device operates stably within a 1.5 V window and retains 82.84 % of its capacitance after 10,000 cycles. Furthermore, it achieves a notable high energy density of 46.85 Wh·kg −1 at a power density of 786.16 W·kg −1 . Density functional theory calculations reveal an increased density of electronic states near the Fermi level and a lowered K + diffusion energy barrier, corroborating the improved electrochemical kinetics. This work demonstrates a synergistic hybrid design that narrows the performance gap between batteries and supercapacitors, offering a promising pathway toward high-energy, high-power energy storage technologies.
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高影响因子
POLYMER
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2026
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IF 4.5
Xinyu Ma,Xiujun Shi,Qiurui Lin,Yimiao Zhou,Dongqin Xiao,Xianru He
Injectable gels exhibit advantages in bone repair due to their minimally invasive nature, adaptability to irregular defects, and in situ formation capability. However, their mechanical strength is frequently insufficient. Strategies such as introducing chemical crosslinking, incorporating nanofillers, or inducing phase separation via poor solvents have been employed to enhance gel strength. Nevertheless, these approaches often suffer from drawbacks such as the use of toxic small-molecule crosslinkers, reaction heat, or compromised injectability due to excessive rigidity. In this study, a physically crosslinked gel based on multiple hydrogen bonds was constructed using a polyhydroxy system—poly(hydroxyethyl acrylate/methyl acrylate) and bioactive glass. The compressive modulus of the gel reached 649 kPa, surpassing the typical limit of 420 kPa for purely physically crosslinked injectable hydrogels in bone repair. To ensure injectability, the unique cosolvent effect and lower critical solution temperature (LCST) transition of this copolymer system were leveraged, enabling simultaneous improvement in both injectability and mechanical strength through synergistic effects. Moreover, the hydrogel also exhibited electrical conductivity, a property that plays a crucial role in enhancing bone repair. Finally, experimental validation in a rat calvarial defect model demonstrated the great potential of this hydrogel for bone regeneration applications.
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高影响因子
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