POLYMER
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2026
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IF 5.1
Haotong Qu,Danhui Wang,Chen Zhuo,Han Jiang,Xiuchen Li,Linfeng Lan,Wenzhuo Jia,Yiping He,Shouhai Zhang,Xigao Jian
The growing demand for efficient separation technologies has spurred research into advanced materials. This study fabricates polyethersulfone (PES)/bisphenol S copoly (phthalazinone ether sulfone) (PPESS) hollow fiber membranes via solution blending to overcome performance-cost trade-offs in traditional single-material membranes. The compatibility of the two components was confirmed by DSC. The effects of different component contents in the formula on the thermodynamic stability, phase separation kinetics of the casting liquid and final membrane morphology were systematically investigated. Increasing the PPESS ratio, polymer concentration, or polyvinylpyrrolidone (PVP) additive content reduced the thermodynamic stability of the system and delayed phase separation to varying extents. This consequently led to a decrease in membrane pore size and increased the bovine serum albumin (BSA) rejection rate to above 95%. Considering permeability-selectivity trade-off, under a suitable spinning process, the blended membrane prepared with a PES/PPESS ratio of 8:2, a polymer content of 18 wt%, and a PVP content of 4 wt% exhibited the best overall performance, achieving a pure water flux of 109.5 L m −2 h −1 and a BSA rejection rate of 91.9%.
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ACS Photonics
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2026
·
IF 6
Yujia Luo,Yikun He,Yuyao Feng,Wanzhong Gu,Wanling Mao,Yixuan He,Liang Ke,Yuhui Dong,Yousheng Zou
Eco-friendly Ag–In–Ga–S (AIGS) quantum dots (QDs) are potential alternatives in white light-emitting diodes (WLEDs) due to their high photoluminescence quantum yield (PLQY) and tunable emission. The conventional stacked-film structure using multicomponent QDs suppresses reabsorption losses among different color QDs, but inevitably introduces interfacial optical losses and manufacturing complexity and cost. In this study, a single color-conversion blended film with uniform and excellent luminescence is fabricated using high-PLQY red-emitting (85%) and green-emitting (91%) AIGS QDs simultaneously incorporated into a PMMA matrix. This deliberately utilizes reabsorption governed by the relative ratio between red and green QDs rather than solely suppressing it, thereby eliminating interfacial losses and enhancing luminance, which results in higher photoluminescence emission while maintaining a nearly identical low blue-light transmittance. Furthermore, the blended-film WLED fabricated by integrating the blended film with a blue LED chip exhibited a higher luminance (532.3 cd/m2), representing a greater than 25-fold increase over the conventional stacked-film device (21.0 cd/m2). The blended-film WLED achieved CIE chromaticity coordinates of (0.31, 0.32) and a color rendering index (CRI) of 87.3. The study provides a better understanding of reabsorption in single-layer multicolor QD films and promotes the development of simple and efficient I–III–VI QD backlight films for white-light display applications.
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Journal of Environmental Chemical Engineering
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2026
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IF 7.5
Yang Li,Yaling Zeng,Zhendong Ouyang,Yunxiao Wen,Jian Yang,Ximei Fan
The complete mineralization of aromatic VOCs via photocatalysis remains a grand challenge, limited by severe photogenerated carrier recombination and the easy formation of toxic refractory phenolic intermediates. Here, we demonstrate a solvent-mediated crystal facet engineering strategy to construct a Bi 2 WO 6 -BiOCl S-scheme heterojunction with oriented exposure of high-activity facets and abundant surface hydroxyl sites. The facet-tailored heterojunction achieves efficient spatial separation of photogenerated carriers via a strong built-in electric field, while retaining the strong redox capacity to generate abundant reactive oxygen species. The optimal catalyst delivers over 95% gaseous toluene removal and 94.9% mineralization efficiency within 1 h irradiation, with 99.7% of removed toluene converted to CO 2 , exceeding the aqueous-synthesized control, pure-phase counterparts, and most reported bismuth-based photocatalysts. In-situ diffuse reflectance infrared Fourier transform spectroscopy combined with theoretical calculations reveals that facet-induced surface hydroxyl sites act as specific adsorption and activation centers for toluene molecules, steering the degradation toward a benign benzyl alcohol-benzaldehyde-benzoic acid pathway and inhibiting the generation of toxic phenolic byproducts. This work clarifies the critical role of crystal facet engineering in coordinating heterojunction charge transfer and surface reaction pathway modulation, providing a new avenue for designing high-performance photocatalysts for the complete mineralization of aromatic VOCs.
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Foods
·
2026
·Vol. 15
·期 16
·2886
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IF 6
Luyao Wang,Xuelian Wu,Yizi Mahai,Wenjing Ma,Lin Zhou,Jing Zhang,Xinhui Wang,Jing Li
Monitoring dopamine (DA) in pork can provide useful information for assessing meat freshness and quality deterioration. In this work, an Fe@N-S-O-C nanocomposite was fabricated as an electrode modifier for DA determination. The Fe@N-S-O-C nanocomposite was synthesized via precipitation followed by calcination using melamine and ferrous sulfate as precursors. The crystal structure, surface chemical composition, and morphology were characterized by XRD, XPS, SEM, and TEM. The Fe@N-S-O-C-modified glassy carbon electrode (Fe@N-S-O-C/GCE) was then evaluated for its electrocatalytic performance toward DA. Under the optimized conditions (pH 6.0), the sensor showed linear responses to DA over 1–65 and 65–220 μM. The sensitivities for these two ranges were 4.357 and 1.685 μA μM−1cm−2, respectively, with an LOD of 40 nM. In addition, the Fe@N-S-O-C/GCE showed excellent reproducibility, good repeatability, and strong anti-interference capability against common coexisting substances. After 30 days of storage, 82.74% of the initial current response was retained by the same electrode. Practical applicability of the sensor was verified in pork samples, with recoveries of 95.97–106.73%. These results demonstrate that the Fe@N-S-O-C/GCE sensor offers a reliable and effective platform for DA detection in complex food matrices.
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STAR Protocols
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2026
·Vol. 7
·期 2
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IF 1.4
Shuai Zhao,Xiaoyuan Chen,Wei Wang
Protein S-glutathionylation is a redox-sensitive post-translational modification that regulates proteostasis and signaling during oxidative stress. However, its in vivo detection is challenging due to labile disulfide bonds and ex vivo oxidation artifacts. Here, we present a protocol for detecting protein glutathionylation in Arabidopsis thaliana using a non-transgenic toolkit. We describe steps for using propargyl glycine (PG) metabolic labeling and click chemistry. We detail workflows for global quantification, target enrichment for western blotting or liquid chromatography-tandem mass spectrometry (LC-MS/MS), and in situ spatial visualization. For complete details on the development, use and execution of this protocol, please refer to Zhao et al. 1 1. Zhao, S. ∙ Xie, Z. ∙ Chen, X. ... Duet between stress granules and glutathionylation regulates cytosolic redox state to maintain proteostasis in Arabidopsis Mol. Plant. 2026; 19 :606-628 Google Scholar
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INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
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2026
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IF 3.9
Yunhong Wang,Shuang Wang,He Cui,Xiaoqian Feng,Huan Wang,Xuelan Hou,Yongfang Yang,Yonghua Zhao
Doxycycline hydrochloride (DH), a persistent antibiotic frequently detected in aquatic environments, remains challenging to eliminate because conventional photocatalysts often suffer from limited visible-light utilization and rapid charge recombination, which suppress reactive oxygen species generation and slow DH transformation. Herein, we develop a visible-light-responsive BaTiO3–In2S3 photocatalyst by constructing an S-scheme heterojunction that steers oxygen-mediated electron transfer for accelerated photocatalytic degradation of DH. Ferroelectric BaTiO3 provides a polarization-associated driving force for carrier separation, whereas In2S3 broadens light harvesting and supplies reductive electrons for oxygen activation. Their work-function mismatch establishes an interfacial electric field that promotes directional carrier migration and suppresses interfacial charge recombination, as evidenced by ex situ/in situ XPS analysis and further supported by DFT analysis. As a result, the BaTiO3–In2S3 heterojunction delivers 59.1% DH conversion with a pseudo-first-order rate constant of 0.02606 min–1, 2.15 times higher than pristine BaTiO3. Quenching and EPR experiments identify ·O2– and h+ as the dominant reactive species, consistent with an S-scheme charge-transfer pathway that preserves high-energy electrons in In2S3 and oxidative holes in BaTiO3. LC-MS analysis suggests three feasible degradation routes, and ECOSAR prediction indicates an overall reduction in aquatic toxicity for several low-molecular-weight intermediates.
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JOURNAL OF MATERIALS SCIENCE
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2026
·Vol. 61
·期 27
·19662-19672
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IF 4.4
Zhang Qiuping,Ran Mengyuan,Cui Kun,Yang Xiaojie,Zhang Hao,Xiao Lina,Wu Yanling,Wang Zhuosen
In the lithium–sulfur (Li–S) batteries, developing catalytic materials to accelerate polysulfide redox kinetics and effectively mitigate the shuttle effect is crucial, as nonpolar carbon materials provide only physical confinement without offering catalytic activity. In this work, a novel functional interlayer is constructed by uniformly anchoring silver quantum dots (AgQDs) onto a MXene substrate, forming an AgQDs@MXene composite. This engineered interlayer is introduced into Li–S batteries to simultaneously address the challenges of polysulfide shuttle and sluggish redox kinetics. The abundant surface functional groups and high conductivity of MXene, coupled with the strong chemisorptive interactions and catalytic activity of AgQDs, enable effective immobilization of soluble lithium polysulfides and accelerated conversion reactions during cycling. As a result, Li–S batteries assembled with the AgQDs@MXene interlayer exhibit remarkable electrochemical performance, including enhanced capacity retention, prolonged cycling stability, and excellent rate capability. These improvements significantly outperform cells with conventional polypropylene (PP) separators, highlighting the potential of AgQDs@MXene as a multifunctional interface for high-energy–density and long-life Li–S batteries. Graphical abstract The alternative text for this image may have been generated using AI.
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CHINESE JOURNAL OF CATALYSIS
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2026
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IF 17.2
Hao Wu,Xinyu Zeng,Wang Wang,Bei Cheng,Jingzhao Cheng,Jingsan Xu,Shaowen Cao
Photocatalytic hydrogen production coupled with value-added chemical synthesis has attracted extensive research interests as a promising route to realize efficient conversion of solar energy to chemical energy. However, the rapid charge recombination hinders the improvement of conversion efficiency. Herein, a pyrene-based conjugated polymer (PyDF)/Mn 0.2 Cd 0.8 S (MCS) organic-inorganic S-scheme heterojunction photocatalyst (PMCS) was reported. The incorporation of large delocalized π -conjugation system and formation of the S-scheme heterojunction significantly enhanced the charge separation and transfer. As a result, the optimal PMCS 0.5 composite exhibited a hydrogen evolution rate of 16.3 mmol h –1 g –1 with ascorbic acid as sacrificial agent. In the coupled system for benzylamine (BA) oxidation and hydrogen production, it delivered a hydrogen evolution rate of 3.72 mmol h –1 g –1 , with nearly 100% conversion of 358.8 μmol BA to N -benzylidene benzylamine (NBBA) within 4 h. To elucidate the charge transfer mechanism within the S-scheme heterojunction, density functional theory calculations, in-situ X-ray photoelectron spectroscopy, and in-situ irradiated Kelvin probe force microscopy were conducted. In addition, in-situ diffuse reflectance infrared Fourier transform spectroscopy was employed to monitor the stepwise transformation of amines to imines during the photocatalytic process. This work offers a promising approach for bifunctional photocatalyst design toward simultaneous energy conversion and green synthesis.
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APPLIED SURFACE SCIENCE
·
2026
·
IF 6.6
Yunxu Yang,Xiaoxi Huang,Yong Shen Chua,Hooi Ling Lee
Fe–SnO 2 @NiO–NF removed 96.85% CIP within 150 min under solar light. • S-scheme heterojunction promotes charge separation and photocatalytic activity. • 3D NiO–NF support enables easy recovery and abundant active sites. • Over 94% degradation activity was retained after four cycles. • DFT and HPLC–MS reveal charge transfer and CIP degradation pathways. Photocatalysis is effective for antibiotic degradation but limited by poor charge separation and difficult recovery of powder catalysts. In this work, a macroscopic p–n heterojunction photocatalyst (Fe–SnO 2 @NiO–NF) was prepared on pre-oxidized nickel foam through in situ growth and microwave-assisted synthesis. XRD confirmed the coexistence of SnO 2 and NiO phases, while HRTEM and XPS analyses verified the successful construction of the Fe–SnO 2 /NiO heterojunction with intimate interfacial contact and interfacial electronic interaction. UV–vis DRS, PL, TRPL, EIS, and photoelectrochemical measurements demonstrated markedly improved light absorption, charge separation and transfer behavior, with a narrowed band gap of 2.92 eV and a prolonged average carrier lifetime of 1.2226 ns. Owing to the enhanced charge separation and the conductive 3D NiO–NF framework, Fe–SnO 2 @NiO–NF exhibited significantly improved photocatalytic activity for ciprofloxacin degradation under solar irradiation, reaching 96.85% removal within 150 min, while the immobilized catalyst could be readily separated from the aqueous solution. ESR and scavenging test identified •O 2 – and h + as the main reactive species, with •O 2 – playing the dominant role, while HPLC–MS revealed the degradation intermediates and pathways. Band structure analysis and DFT calculations demonstrated that the p–n heterojunction follows an S-scheme charge transfer mechanism, promoting efficient charge separation while preserving strong redox capability. The composite retained over 94% of its initial activity after four cycles, showing excellent stability and recyclability. This study provides a practical way to develop efficient and reusable photocatalysts for antibiotic wastewater treatment. Download: Download high-res image (182KB) Download: Download full-size image
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BIOORGANIC CHEMISTRY
·
2026
·
IF 5.1
Xue Zhang,Peng Hou,Qi Zhang,Haijun Wang,Hongxia Cui,Likun Liu,Pengfei Qi,Haoqing Ren,Huiling Hou,Song Chen
Hydrogen sulfide (H 2 S) is a gas with dual roles in both environmental and biological systems. Although it is a natural atmospheric constituent and an enzymatically produced signaling molecule, elevated levels of H 2 S are associated with air pollution, cytotoxicity, and various diseases. Current methods for detecting H₂S are often limited by complex sample preparation, low sensitivity, and inadequate selectivity. To address these challenges, we report the development of a novel dual-channel and dual-responsive fluorescent probe HAR-H₂S , which enables rapid, sensitive, and selective detection of H₂S in both environmental and biological contexts. This probe employs coumarin and naphthalimide derivatives as fluorescent reporters and incorporates dual recognition sites for specific H₂S detection. Upon interaction with H₂S, the probe generates distinct blue and green fluorescent signals, facilitating bicolor imaging. The probe demonstrated excellent selectivity, low detection limits (26.4 nM and 35.1 nM), a relatively large spectral separation (126 nm) and rapid response times (within 3 min). HAR-H 2 S was successfully applied to quantify H 2 S in water samples (tap, river, and lake water) and to image H 2 S in various biological systems, including HeLa cells, HepG2 cells, zebrafish embryos, the ferroptosis model and mouse liver tissue sections. Our results highlight the potential of HAR-H 2 S as a versatile tool for H 2 S detection and imaging in both analytical and biological applications, thereby advancing the field of H 2 S research.
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JOURNAL OF ELECTROANALYTICAL CHEMISTRY
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2026
·
IF 4.6
Shaolong Liu,Zhifeng Su,Zhiming Qiu,Xitao Guo,Minghua Liu,Yurong Yan
Biomass-derived porous carbon holds great promise as an electrode material for supercapacitors due to its low cost and sustainability. However, single-activator strategies typically fail to achieve microporous-mesoporous structure with high specific surface area (SSA) and micropore volume of such carbon materials, thereby limiting their capacitive performance. Therefore, inspired by the pyrolysis behavior of sodium lignosulfonate, we innovatively propose a novel activation system for preparing N/O/S co-doped biomass microporous-mesoporous carbon (SLCA): utilizing chitosan carbon and sodium lignosulfonate as self-doping carbon sources, potassium hydroxide as the primary activator, and sodium lignosulfonate as the self-templating activator. The microporous volume is a key factor influencing specific capacitance. Specifically, the SLCA-700 (activated at 700 °C) has a microporous-mesoporous structure with abundant N/O/S heteroatoms doping and a SSA of 2378.7 m 2 ·g −1 , and achieves a high micropore volume of 0.84 cm 3 ·g −1 , which is 0.24 cm 3 ·g −1 higher than that of the KOH activation system alone. Furthermore, the SLCA-700 electrode exhibits an outstanding specific capacitance of 305.9 F·g −1 at 0.5 A·g −1 , and supercapacitor shows excellent cycling stability (97.0% capacitance retention after 10,000 cycles). This study proposes a dual activation mechanism for preparing microporous-mesoporous carbon with a high SSA, providing a viable strategy for producing high-performance supercapacitor electrode materials.
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JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY
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2026
·
IF 6.7
Jiaxing Yang,Shouchun Xiao,Pengxi Li,Bingxue Li,Bingying He,Xueke Liu,Donghui Liu,Zhiqiang Zhou,Peng Wang
Penthiopyrad, a chiral fungicide with a riskier S-enantiomer, exhibited poorly understood stereoselective behaviors in mammals. This study investigated the enantioselective accumulation and metabolism of penthiopyrad enantiomers in mammals using in vivo, in vitro, and in silico approaches. Penthiopyrad accumulated in the liver and kidneys at concentrations over 10-fold higher than those in the blood. S-penthiopyrad showed preferential absorption with 1.6-fold higher bioavailability than the R-enantiomer. Twenty-three metabolites (12 novel) were identified, with CYP-mediated N-demethylation as the dominant pathway. S-penthiopyrad was preferentially metabolized in mouse liver microsomes with a 1.5-fold shorter half-life, while human liver microsomes favored the R-enantiomer. CYP2E1, CYP2C (mouse), and CYP3A4 (human) mediated stereoselective metabolism, with the preferential metabolism of the R-enantiomer by human CYP3A4 attributed to its low binding energy and favorable conformation. This study comprehensively clarified the stereoselective behavior and metabolic pathway of penthiopyrad in mammals, providing valuable metabolic insights for further toxicological evaluation of penthiopyrad.
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