FOOD CHEMISTRY
·
2026
·
IF 10.4
Zihan Xu,Ziyi Guo,Shengran Yu,Xinyi Shen,Yanqing Cong,Tong Wei,Wenming Pei,Shi-Wen Lv
Herein, a novel porous S-CoO/C composite with spatial confinement effect is synthesized. Notably, doped sulfur can have the reaction with Co site of CoO and trigger the d-p orbital hybridization between 3p orbital of sulfur and 3d orbital of cobalt. The d-p orbital hybridization effect can not only increase the content of oxygen vacancy, but also drive the transformation of Co sites from low to high spin states. Benefitting from these changes, more unpaired electrons are generated in S-CoO/C. As a result, the S-CoO/C exhibits moderate oxidase-like property and excellent peroxidase-like activity. In view of the superb peroxidase-like activity of S-CoO/C, a colorimetric assay is proposed for detecting H 2 O 2 and hydroquinone using TMB as the substrate, and developed detection methods have great advantage being a low LOD, a high recovery and a broad linear range. Furthermore, established colorimetric assay displays excellent analysis performance even in real samples.
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JOURNAL OF COLLOID AND INTERFACE SCIENCE
·
2026
·
IF 9.6
Yue Wu,Haiyan Song
Visible light-driven hydrogen peroxide (H 2 O 2 ) production from natural seawater over covalent organic frameworks (COFs) is becoming a challenge. In this work, a polarization strategy via incorporating oxo-ether ( O ) functional groups into COFs architecture was attempted and demonstrated to significantly enhance photocarriers separation. The strategy interestingly transformed the COFs morphology from rod-like flower clusters to sheet-like flower clusters. Furthermore, the monomer 4,4′-oxydianiline (OD) of the oxo-ether functionalized COFs (TpOD-COF) obtained a cost efficiency that was about 1794 times higher than the monomer benzidine (BD) formed non-functionalized COFs (TpBD-COF). TpOD-COF in real seawater achieved 4598 μmol·g −1 ·h −1 of H 2 O 2 productivity, and 10.2% of apparent quantum yield (AQY) without electron-proton donors and pure oxygen (O 2 ), which was 1.91 times higher than TpBD-COF. Mechanism studies revealed that TpOD-COF not only satisfies the thermodynamic requirement for the 2e − oxygen reduction reaction, but also indirectly enhances H 2 O 2 production through water oxidation, thereby establishing a cycle system that goes from water (H 2 O) to O 2 and then indirectly to H 2 O 2 , which promotes the overall reaction kinetics. More importantly, the catalyst did not deactivate in seawater; instead, the presence of ions further promoted electron transfer. Furthermore, the polar oxygen atoms served as additional hydrogen bond acceptors, enhancing the hydrogen-bonding network architecture. The system suggested a powerful functional-groups-mediated polarization engineering for the development of highly efficient metal-free photocatalysts.
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PROGRESS IN ORGANIC COATINGS
·
2026
·
IF 7.9
Jinqiu Jiang,Xinhui Cao,Meng Sun,Xujie Guo,Junhao Shen,Hui Zhang,Liying Zhang,Jianyong Yu
With the rapid development of detection technologies, including visible (VIS) imaging and infrared (IR) sensing, the detectability of targets in complex environments has been significantly enhanced, driving the urgent demands on coating systems capable of simultaneously achieving VIS and IR stealth. Conventional coatings that use metallic fillers for low IR emissivity often exhibit high lightness ( L* ), impairing visual camouflage. Conversely, incorporating pigments to regulate visual features usually increases IR emissivity, making it challenging to balance both VIS and IR stealth performance. To address this challenge, we developed a bilayer low- L* VIS-IR compatible stealth coating system (C S ) that synergistically combined spectral modulation with thermal management. SiO 2 -coated Al composite fillers (SiO 2 @Al) were employed in the upper layer to reduce L* while maintaining low IR emissivity, and Cr 2 O 3 pigments were introduced for precise chromaticity regulation to achieve effective color matching with a standard forest green background. The lower layer consisted of a silica aerogel (SA) based thermal-insulating coating, which effectively blocks heat transfer, thereby reducing thermal radiation. The resulting C S achieved an IR emissivity below 0.4 across the 8–14 μm spectrum, a low L* of 33.0, and a color difference of 2.1 relative to the target. Moreover, the IR emissivity and ΔE of C S remained nearly unchanged after environmental durability tests and demonstrated excellent adhesion (grade 0), providing a practical and engineering-feasible strategy for VIS-IR compatible stealth.
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POLYMER
·
2026
·
IF 5.1
Yongliang Ding,Lieshun Cai,Siyu Liu,Jindong Li,Qihao Huang,Yu Fang,Qingmin Yang,Xi Li,Zhongkai Wang,Xiankun Wu
The design of sustainable polymers that combine high strength, ductility, and compatibility with existing bioplastics remains a critical challenge. Here we report a castor-oil-derived sulfur-containing copolyamide (PAS-X) synthesized via thiol-ene click reaction followed by melt polycondensation, providing a scalable route for high-performance bio-based materials. The incorporation of flexible thioether linkages and strongly hydrogen-bonding amide motifs enables precise control over chain mobility, crystallinity, and mechanical response. The optimized copolymer, PAS-50, exhibits a tensile strength of ≈39.8 ± 2.4 MPa and a work-to-fracture of ≈120.7 ± 8.0 MJ m −3 . When blended with polylactic acid (PLA) at low loadings (≤5 wt%), PAS-50 forms robust hydrogen-bond-mediated interfaces that induce a brittle-to-ductile transition, increasing fracture toughness from 9.2 MJ m −3 to 60.7 MJ m −3 without sacrificing yield stress. This work establishes a chemically simple and industrially viable approach to transform renewable plant-oil derivatives into multifunctional polyamides, offering a general framework for hydrogen-bond-assisted design of strong and tough bio-based polymers.
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NEW JOURNAL OF CHEMISTRY
·
2026
·
IF 2.6
Tahseen Ahmed,Ling Zhang,Runzhi Wang,Yiling Bai,Xuehua Zhang,Yu Sun,Lili Fu,Bin Li,Menglei Yuan,Guangjin Zhang
Electrocatalytic nitrate reduction to ammonia (NO3⁻RR) provides a promising approach for converting nitrate pollutants to ammonia under mild conditions. Metal phthalocyanine-based conjugated polymers, with their well-defined structures and tunable functionality, are emerging as efficient two-dimensional (2D) catalysts for this reaction. Herein, we report a 2D-conjugated nickel phthalocyanine polymer (NiPcP) that demonstrates high efficiency and selectivity towards NO3⁻RR. The material features high-density, well-defined Ni–N4 sites and the nitrogen-bridged tetra-isoindole structures create a hydrophobic microenvironment and electron-rich Ni centers, which facilitate nitrate adsorption and electron transfer, and suppress the hydrogen evolution reaction (HER). As a result, NiPcP achieves a maximum Faradaic efficiency of 99.7% and an NH3 yield rate of 14.2 g h⁻1 gcat⁻1, maintaining over 80% efficiency across a broad potential window (from −0.5 to −0.9 V vs. RHE) and wide nitrate concentration range (from 10.0 mmol L⁻1 to 2.0 mol L⁻1). It is the first noble metal-free Ni-based catalyst that exhibits such high FE in such a broad potential window and wide nitrate concentration range simultaneously. This work offers an effective molecular design strategy for developing metal–organic electrocatalysts toward sustainable ammonia synthesis and nitrate pollution remediation.
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DESALINATION
·
2026
·
IF 9.9
Luheng Jing,Siping Ding,Tinglue Zhang,Yang Tong,Tonghui Zhang,Zheyi Meng,Xuefen Wang
Traditional hydrophobic membranes are susceptible to membrane fouling and wetting of membrane pores, limiting the application of membrane distillation (MD) technology in water recovery under increasingly complex water conditions. To address these challenges, we designed a structural integrated hydrophilic-omniphobic Janus membrane via synchronous fluorination/reverse interfacial polymerization (SF/R-IP) based on roughening modified polyvinylidene fluoride (PVDF) nanofibrous membrane. During the SF/R-IP process, not only piperazine (PIP) from the upper aqueous phase solution reacted with trimethylchloroform (TMC) from the lower organic phase solution to form polyamide layer (PA) through IP reaction, the modified PVDF substrate would also be fluorinated synchronously by 1H,1H,2H,2H-perfluorotriethoxysilane (PFDTES) in organic phase. As a consequence, a novel Janus membrane with an ultrathin hydrophilic PA surface layer partially inter-embedded onto an omniphobic substrate was featured, and this special inter-embedding adhesion endowed the Janus membrane excellent structural integrity. The optimized Janus membrane combined the anti-wetting performance of an omniphobic membrane with the oil contamination resistance of the hydrophilic layer and the high permeability of nanofibrous substrate, demonstrating considerable vapor flux (31.1 kg m −2 h −1 ) and complete salt rejection (99.99%) during a long-term (80 h) DCMD experiments using surfactant sodium dodecyl sulfate (SDS)-stabilized oil-in-water (O/W) saline emulsion as the feed solution, and could fully recover optimal flux and continue stable operation after flushing. This study would provide a new strategy in designing high-performance MD membranes and enable robust applications of MD facing the challenges of membrane fouling and wetting.
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CHEMICAL ENGINEERING JOURNAL
·
2026
·
IF 12.5
Mengnan Liu,Zhilong Zhou,Heqi Gao,Jiangfei Li,Jiayu Wang,Haitian Zhao,Zhongjun Cheng,Weihong Lu
Antimicrobial packaging has received extensive attention due to its significant role in ensuring food safety. However, direct contact between liquid foods and antibacterial surfaces often causes food residue and affects the release of antibacterial agents, ultimately deteriorating antibacterial performance. Here, we report a strategy to overcome this imperfection by grafting PDMS molecular brushes onto the thymol-loaded polylactic acid (PLA) films. The PDMS molecular brushes provide the surface with low adhesion to various food droplets (e.g., cola, milk, and vinegar). The sliding angles (SA) for these food droplets are all less than 30°. Meanwhile, it does not affect the release of the antibacterial agent (thymol). Based on these advantages, the film shows enhanced stability in its antibacterial properties, with bactericidal rates against E. coli and S. aureus reaching nearly 100%. The excellent antibacterial performance can be maintained even after contact with liquid foods, as evidenced by the nearly unchanged inhibition zones against E. coli and S. aureus (e.g., the diameter of the inhibition zone against S. aureus is slightly changed from 1.87 nm to 1.83 nm). Moreover, the optimal conditions to fabricate the film were also discussed in detail, such as the content of thymol, the alkaline hydrolysis time, the temperature and time for grafting PDMS molecular brushes. The work reports a strategy to guarantee stable release of the antibacterial agent through grafting PDMS molecular brushes onto packaging films, thereby effectively prolonging the shelf life of liquid foods.
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CHEMICAL ENGINEERING JOURNAL
·
2026
·
IF 12.5
Jian Duan,Kun Wang,Xiaoqiang Shu,Lianhao Zhao,Changhui Chen,Shifang Fei,Min Xi,Xiang Chen,Diankai Wang,Kaihuan Zhang,Sijia Xie,Bo Liu,Chang Chen,Zheng Deng
Rapid and timely nucleic acid detection through polymerase chain reaction (PCR) is an urgent demand in epidemic prevention and control. However, conventional Peltier-based PCR instruments are too slow to meet this requirement. Herein, an ultra-fast photothermal real-time quantitative PCR (qPCR) system that integrates a metal-organic framework (MOF)-based photothermal membrane with a silicon-based microfluidic chip is constructed for rapid SARS-CoV-2 detection. After optimization of the synthesis temperature of zirconium-ferrocenyl (Zr-Fc) MOFs and the thickness of Zr-Fc MOF/SWCNTs (ZFC) membranes, the resultant ZFC-22 membrane exhibits excellent and robust photothermal performance with an ultra-fast heating rate of 60.3 °C/s, enabling a rapid heat generation rate. Subsequently, the ZFC-22 membrane is integrated into a custom-designed silicon-based microfluidic chip that not only enhances heat conduction but also effectively confines heat in the PCR microchannel via thermal-isolation grooves, thereby reducing heat loss. Finally, a photothermal real-time qPCR system consisting of photothermal modules, microfluidic chips, control modules, and fluorescence imaging modules is constructed, which completes 40 nucleic acid amplification cycles within 10 min with an excellent amplification efficiency (98.6%), a low limit of detection (10 copies/μL), and an extremely low average optical power (1 W/well).
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Nature Communications
·
2026
·
IF 18.1
Yu Yang,Zhou Wei,Yuan Junshu,Zhou Xiaohan,Zhang Xuewei,Li Xuhan,Xia Xiao,Zhang Liqiang,Chen Yingjian,Meng Xiaoxiao,Wang Xingxing,Sun Fei,Gao Jihui,Zhao Guangbo
From the perspective of sustainable energy and green hydrogen, the critical challenge in seawater electrolysis lies in suppressing competitive chloride oxidation and corrosion at the anode. Despite the proposed protection mechanism based on surface reconstruction-derived anion repellence, a fundamental question of selectivity remains: why does the protective layer exclude Cl - but not the formally equivalent OH - ? We now redefine the connection between reconstruction and interfacial protection in NiFeS anodes to elucidate the origin of underlying selectivity. In-situ Raman, in-situ X-ray absorption spectroscopy, and molecular dynamic calculations further confirm that the reconstructed SO 4 2- establishes an enhanced hydrogen-bond network. This network significantly weakens the hydrogen-bonding strength of Cl - relative to H 2 O, thereby enhancing the discrimination between OH - and Cl - . In practical application, NiFeS demonstrates energy-saving seawater splitting performance (261.8 mV @ 100 mA·cm -2 ), long-term durability (2000 h @ 1.0 A·cm -2 ), and enables stable intermittent electrolysis (1500 start-stop cycles @500 mA·cm -2 ). When integrated into an anion exchange membrane cell, it shows promising electrolysis performance for industrial applications (1.970 V @ 1.0 A·cm -2 ).
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RSC Advances
·
2026
·Vol. 16
·期 12
·11158
·
IF 6.1
Wenli Qin,Xinyi Zhang,Gaofeng Chen,Zhaoting Ji,Zengling Ma
The increasing influx of nutrients ( e.g. , nitrogen and phosphorus) into freshwater systems is exacerbating eutrophication in natural waterways. To address this issue, a novel magnetic photocatalyst composed of a carbon nanotube core and a titanium dioxide coating (denoted as C–TiO 2 –Fe 3 O 4 and C–TiFe 2 O 4 ) is successfully synthesized. Microcystis aeruginosa and microcystin-LR (MC-LR) in eutrophicated water can be efficiently inactivated by the composite via visible light photocatalysis. The incorporation of magnetic Fe significantly enhances cyanobacteria capture and improves the photocatalytic efficiency for algal inactivation and MC-LR breakdown. C–TiFe 2 O 4 exhibits the highest adsorption-photocatalysis performance with an inactivation efficiency of 77.9% after 7 hours. Under optimal conditions (7 h of reaction time, a catalyst dosage of 0.39 g L −1 , and an initial algae density of 1 × 10 6 cells per mL), the MC-LR removal rate is 89.1%. Notably, C–TiFe 2 O 4 maintains exceptional stability and reusability even after five cycles. The composite demonstrates promising potential for treating harmful algal blooms (HABs) across diverse environmental conditions. These findings highlight the viability of C–TiFe 2 O 4 as a sustainable and scalable technology to mitigate HABs and degrade MC-LR in contaminated water systems. The prepared magnetic photocatalysts, C–TiO 2 –Fe 3 O 4 and C–TiFe 2 O 4 , are sustainable and scalable technologies to mitigate HABs and degrade MC-LR in contaminated water systems.
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FOOD CHEMISTRY
·
2026
·
IF 10.4
Xuejie Liu,Wenshen Jia,Zeshan Ali,Jianrong Li,Yawen Lin,Xuepeng Li
Nemipterus virgatus surimi gel fabricated by continuous microwave heating (CMH) was characterized for the addition of a Tremella polysaccharide/soy protein isolate Pickering emulsion (TSPE), using free soybean oil (SO) and a physical mixture of TSPE as controls. Compared to free SO, TSPE could significantly ( P < 0.05) improve palatability, with increased mechanical properties, including 21.95% gel strength, 12.67% chewiness, and 6.93% adhesiveness. Addition of 3% TSPE effectively filled the network structure with reduced gel porosity of up to 52.09%, improved water-holding capacity, and minimized cooking loss by converting free water to immobilized water, likely due to a more highly-ordered molecular arrangement with increased β-sheet content. Furthermore, molecular docking analysis showed that Tremella polysaccharide in TSPE could act as an effective emulsifier through binding interactions via carbonyl and hydroxyl groups. The findings above demonstrate the great potential of Tremella polysaccharide-incorporated Pickering emulsions in enhancing the quality of surimi gel.
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Nature Communications
·
2026
·
IF 18.1
Jin Yiqi,Wu Bo,Li Wenzheng,Wang Chunlei,Fan Li,Wen Lixian,Li Jiawei,Wang James,Lei Jinggui,Fan Jiantao,Li Hui
Cation degradation in ionomers critically limits the durability of pure-water-fed anion exchange membrane water electrolysis, particularly at the anode where high overpotentials and near-neutral pH induce harsh oxidative stress. However, prevailing cation design remains rooted in alkali-stability frameworks, which fall short under these oxidative conditions. Here, a multiscale approach combining molecular degradation and operando diagnostics identifies electrochemical oxidation as the dominant anodic cation degradation pathway in anion exchange membrane water electrolysis, prompting a shift toward oxidation-resistant cation design. Electrolyzers incorporating oxidation-tolerant trimethylammonium-functionalized ionomers achieve 360-hour stability at 1 A cm⁻ 2 , doubling the durability of alkali-stable N , N -dimethylpiperidinium-based ionomers. Mechanistic studies under simulated anode conditions reveal electrochemical oxidative degradation pathways of cations, establishing a molecular-level evaluation framework. Operando diagnostics with reference-integrated electrolyzers reveal that cation oxidation elevates ohmic and ionic transport resistances. This multiscale study directly traces device failure to cation oxidation, redefining cation design around oxidative stability to enhance durability in pure-water-fed anion exchange membrane water electrolysis.
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