OPTICAL MATERIALS
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2026
·
IF 4.3
Cong Zhang,Huidong Xiong,Zhonghao Zhao,Xiaoyu Sun,Jingliang Cheng,Chaxiu Guo,Huadong Liu
In response to the need for efficient elimination of methylene blue (MB) from dye-containing wastewater, a Mo, N-co-doped carbon quantum dot-modified BiVO 4 (5% Mo, N-CQDs/BiVO 4 ) composite photocatalyst was developed. Pristine BiVO 4 suffers from rapid charge carrier recombination and limited visible-light utilization. Introduction of Mo, N-CQDs establishes a synergistic enhancement mechanism: (1) Mo, N-CQDs act as electron mediators, improving interfacial charge separation and migration, as evidenced by reduced charge transfer resistance. Mo doping introduces impurity energy levels that trap electrons and retard recombination, while nitrogen doping enhances electron tunneling and reduces interfacial resistance. (2) UV-Vis DRS confirms bandgap narrowing and enhanced visible-light absorption. (3) Photoelectrochemical analysis reveals significantly enhanced photocurrent response and reduced charge transfer resistance, confirming improved charge separation efficiency. Under visible light, the composite achieved a degradation rate constant of 0.04089 min −1 toward MB, a 3.31-fold enhancement over pure BiVO 4 , with >95% removal within 80 min. Radical trapping identified superoxide radicals (·O 2 − ) and holes (h + ) as the predominant active species, with h + contributing ∼62% of the activity. The catalyst retained 88.65% of its initial efficiency after four cycles, demonstrating good stability. This study provides a viable charge-regulation strategy using multi-element co-doped carbon quantum dots for semiconductor modification, highlighting its potential in dye wastewater treatment.
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DESALINATION
·
2026
·
IF 9.9
Zhouxiao Zhai,Jingce Bi,Linshan Wang,Ningning Liu,Yi Wang,Xia Zhang,Zhuopeng Wang,Yide Han
A g-C 3 N 4 /Bi 2 MoO 6 /Bi 2 WO 6 ternary heterojunction was constructed via simple mechanical grinding and thermal treatment. • GBMW follows a dual Z -scheme charge-transfer pathway, preserving strong redox capability for enhanced photocatalysis. • U(VI) acts as an electron acceptor to promote charge separation and improve photocatalytic performance. Due to the difficulty of conventional photocatalytic systems in simultaneously achieving strong oxidation and reduction processes, the treatment of wastewater containing coexisting uranium and organic pollutants remains a critical challenge in the field of photocatalysis. Herein, a novel g-C 3 N 4 /Bi 2 MoO 6 /Bi 2 WO 6 (GBMW) ternary photocatalyst with a dual Z -scheme heterojunction architecture was rationally constructed for the removal of U(VI) and tetracycline (TC) under visible-light irradiation. The dual Z-scheme heterojunction extends the visible-light response range and accelerates interfacial charge transfer, while preserving strong redox potentials. Within 100 min, GBMW achieves a U(VI) reduction efficiency of 91.6% and a TC degradation efficiency of 97.6%, with corresponding k obs values of 0.02332 and 0.03664 min −1 , respectively, which are significantly superior to those of BiMO, BiWO, GCN and GBW. Notably, U(VI) can act as an efficient electron acceptor to promote the separation of electrons and holes in GBMW, which significantly facilitates the degradation of TC. Moreover, GBMW demonstrates excellent stability and anti-interference performance in various real water matrices. This work not only provides a feasible strategy for constructing high-efficiency dual Z -scheme heterojunctions photocatalysts, but also offers an effective solution for treating complex wastewater containing coexisting organic pollutants and radioactive contaminants. Download: Download high-res image (264KB) Download: Download full-size image
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APPLIED SURFACE SCIENCE
·
2026
·
IF 6.6
Jiao Lu,Yihua Cui,Jinqing Lu,Xuejun Liang,Mingjie Chen,Zhenkun Xue,Xiaoying Wen,Jinping Peng
Thiol/MCMs-Ni microspheres synthesized via green aqueous epoxy-thiol grafting. • Microspheres are uniform 2 μm spheres with superparamagnetism, enabling rapid magnetic separation within 30 s. • Achieves high BSA adsorption capacity of 77.37 mg/g, fitting Langmuir isotherm and pseudo-second-order kinetics. • More than 91.5% elution efficiency and 67.56 mg/g capacity after five cycles, demonstrating excellent recyclability. In this study, cellulose was epoxy-functionalized with glycidyl methacrylate (GMA), and sodium hydrosulfide (NaHS) was further introduced to successfully prepare thiol-modified magnetic cellulose microspheres (Thiol/MCMs-Ni) for protein separation research. This green and scalable strategy addresses the pressing demand for efficient adsorbents in downstream bioprocessing, where rapid magnetic separation can circumvent conventional centrifugation and filtration bottlenecks, reducing operational complexity and cost. The material was systematically characterized by FTIR, XRD, SEM, VSM, and XPS. The results indicated that the Thiol/MCMs-Ni microspheres exhibited a regular spherical shape with a particle size of approximately 2 μm, while also demonstrating good magnetic responsiveness and thermal stability. Adsorption experiments using bovine serum albumin (BSA) as a model protein showed that the adsorption behavior conformed to the pseudo-second-order kinetic model and the Langmuir isotherm adsorption model, with a maximum adsorption capacity of 77.37 mg/g. Thermodynamic analysis indicates that the adsorption is a spontaneous and endothermic process, and the material still maintains a high elution efficiency of more than 91.5% after five cycles of use. This study provides a novel approach for developing efficient and green materials for protein separation. Download: Download high-res image (140KB) Download: Download full-size image
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POLYMER TESTING
·
2026
·
IF 6.4
Shaodong Wang,Xiaoxiao Duan,Jianbing Wu,Chunxuan Li,DeJun Gao,Quan Yuan,Shiwei Xu
P/N-functionalized nano-CaCO 3 with improved dispersibility was prepared using atwo-step SHMP/ATMP strategy. • The synergistic nano-CaCO 3 /IFR enabled UL 94 V-0 rating at reduced flame-retardant loading while improving tensile ductility. • Dense char formation induced by gas-condensed phase synergy enhanced thermal stability and flame retardancy. Polypropylene (PP) is a commonly used non-metallic material in automotive lightweighting. To meet the requirements of carbon neutrality and green environmental policies and to promote energy conservation and emission reduction in the automotive sector, this study focuses on balancing the flame retardancy and mechanical properties of PP composites. To this end, nano-CaCO 3 was synergistically modified with phosphorus and nitrogen using three routes: a one-step sodium hexametaphosphate (SHMP)/urea method, a two-step SHMP/Urea method, and a two-step SHMP/aminotrimethylene phosphonic acid (ATMP) method. After subsequent hydrophobic modification, the P/N-modified nano-CaCO 3 was blended with an intumescent flame retardant (IFR) and PP to prepare flame-retardant PP composites. The results indicate that the modification successfully introduced phosphorus- and nitrogen-containing groups onto the surface of nano-CaCO 3 without altering its calcite crystal structure. Among these methods, the SHMP/ATMP two-step route showed the highest modification efficiency, resulting in superior dispersibility and thermal stability. With the appropriate incorporation of modified nano-CaCO 3 into the PP/IFR system, the composites exhibited a marked synergistic flame-retardant effect. When the IFR content was 20 wt%, the UL 94 rating was improved from V-1 to V-0, while the elongation at break was significantly increased. Concurrently, the modified nano-CaCO 3 promoted the formation of a dense and stable char layer, increasing the char yield at 600°C from 12.9% to 23.0%. These results indicate that modified nano-CaCO 3 serves as a highly effective synergistic additive that combines both flame-retardant and toughening properties. This study provides an effective strategy for simultaneously enhancing both the flame-retardant and mechanical properties of PP composites in low-additive flame-retardant systems.
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Advanced Healthcare Materials
·
2026
·
IF 11
Lili Zhao,Hongbo Li,Yutong Yue,Dan Xu,Zhenbin Liu,Lishan Yao,Lu Tian,Yangyang Jia,Haizhen Mo,Liangbin Hu
Seborrheic dermatitis (SD) is a chronic relapsing inflammatory dermatosis closely associated with Malassezia furfur overgrowth. Given the growing interest in metal-based antimicrobials, copper compounds were investigated here as potential anti-Malassezia agents for SD treatment. CuSO 4 showed the strongest antifungal activity against M. furfur at 1 mM and rapidly reduced fungal viability. Mechanistic analyses revealed intracellular copper accumulation, elevated Fe 2+ levels, increased reactive oxygen species generation, and enhanced lipid peroxidation, collectively suggesting an oxidative damage pattern with ferroptosis-like features. Based on its potent anti-Malassezia activity, a CuSO 4 -loaded xanthan gum/hyaluronic acid hydrogel (HG-Cu) was further developed for integrated local treatment of seborrheic dermatitis. HG-Cu exhibited viscous-flow behavior, high structural stability, and favorable biocompatibility. In a guinea pig model of M. furfur -induced seborrheic dermatitis, HG-Cu effectively suppressed fungal proliferation in lesions through sustained copper release. Histopathological analysis showed that HG-Cu markedly ameliorated skin lesions, reduced inflammatory infiltration, and promoted matrix reconstruction and skin repair by upregulating type III collagen (COL III) at the early stage and enhancing type I collagen (COL I) deposition at the later stage. Taken together, HG-Cu offers a promising localized therapeutic approach for seborrheic dermatitis by integrating sustained antifungal activity, inflammation control, and skin barrier restoration.
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TALANTA
·
2026
·
IF 6.7
Yu Liu,Qizheng Bi,Xiaoning Chu,Zhihao Dang,Junmin Hui,Zhuo Liu,Congkui Tian
The detection of leucine aminopeptidase (LAP) activity is essential for diagnosing liver cancer and liver injury. This study presents a novel fluorescence-based method designed for the sensitive detection of LAP through cascade catalytic reactions. Leucine-histidine (LeH) was synthesized using histidine and leucine as substrates for LAP. Notably, histidine (His) effectively inhibited the Cu 2+ -catalyzed oxidation of o-phenylenediamine (OPD) to fluorescent 2,3-diaminophenazine (oxOPD), resulting in a diminished fluorescence signal. Given that LAP hydrolyzes LeH to release His, which subsequently inhibits the Cu 2+ -OPD system, LAP activity can be quantitatively assessed by measuring fluorescence changes during the hydrolysis process. The exceptional performance of the Cu 2+ -OPD system in quantifying His allowed for highly sensitive LAP detection, achieving a detection limit as low as 0.05 U/L. Furthermore, the strategy was successfully implemented to evaluate LAP activity in cells.
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JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY
·
2026
·Vol. 74
·期 28
·22312-22323
·
IF 6.7
Peng Huajie,Gao Di,Xiao Zhengyue,Yue Zhixiang,Xu Peng,Qiu Ping
Compared with natural-enzyme-based detection strategies,
nanozymes
offer notable advantages in stability, environmental tolerance, and
cost-effectiveness. In this study, we designed and synthesized a Pt@Fe-MIL-88
composite with both oxidase (OXD)-like activity and intrinsic fluorescence.
The material efficiently catalyzes 3,3 ′ ,5,5 ′ -tetramethylbenzidine
(TMB) oxidation, generating a color change while quenching its fluorescence.
Glyphosate (Gly) specifically inhibits the OXD-like activity of Pt@Fe-MIL-88,
reducing oxTMB production and thereby alleviating fluorescence quenching,
enabling dual colorimetric and fluorometric signal readout. The inhibition
mechanism was elucidated through FTIR, XRD, XPS characterization,
molecular dynamics simulations, and DFT calculations. Accordingly,
a natural-enzyme-free, colorimetric-fluorometric dual-mode sensing
platform for Gly was established. The platform exhibits high sensitivity,
excellent selectivity, and strong anti-interference capability, with
accuracy and reliability validated by spike recovery tests in real
samples. This work presents a new strategy for developing stable,
rapid, and low-cost multimodal detection methods for pesticide residues.
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Nature Communications
·
2026
·
IF 18.1
Zhang Guiru,Ji Ning,Luo Liuxuan,Li Xiangrui,Shen Peng,Xue Rui,Yuan Shu,Huang Junyi,Zhao Congfan,Bi Tianzi,Cheng Xiaojing,Guo Yangge,Yan Xiaohui,Su Xiaozhi,Shen Shuiyun,Zhang Junliang
Single-atom catalysts (SACs) are favored owing to their well-defined motifs and notable CO selectivity in electrochemical CO 2 reduction. However, the dynamic coordination evolution under working conditions and the structure-activity relationships remain highly puzzling. Herein, we suggest that flexible Zn–P 3 nanodomains with weak-bond interactions may exhibit a potential-dependent structural modulation under working conditions compared to Zn–N 4 configurations. A possible metastable state with reduced Zn–P x -like coordination may be formed from the Zn–P 3 structure under CO 2 reduction working conditions. Based on in situ spectroscopy analysis, deuterium isotope kinetic analysis, and theoretical calculations, the low-coordination Zn and the possibly perturbed P sites may serve as efficient active sites for the first step of sequential proton–electron transfer in the CO 2 electroreduction. The collaborative assignments within this dynamic catalytic nanodomain, rather than at individual metal site, may contribute to the improved the intrinsic activity, which delivers a high turnover frequency (47,690 h −1 ) and a CO production rate (213 mL h −1 cm −2 ) at 500 mA cm −2 for 100 h. Our work elucidates the dynamic coordination-governed mechanisms of SACs and underscores the necessity of probing their structural basis under operating conditions.
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Nature Communications
·
2026
·
IF 18.1
Ding Fan,Li Fu-Kui,Hu Yan-Wei,Song Shi-Yu,Zhao Wen-Bo,Cao Qing,Shan Chong-Xin,Liu Kai-Kai
Red phosphorescent materials with long-lived triplet excitons are highly desirable for optoelectronic and bio-related applications but remain limited by short emission lifetime. Here we show ultralong red phosphorescent carbon nanodots, which exhibit minute-scale phosphorescence. Through combining excited-state engineering assisted by machine learning optimization, the obtained red carbon nanodots achieve the phosphorescence lifetime of 353 second, with emission persistence exceeding 4000 second. Spectroscopic analysis reveals the coexistence of a fast radiative transition channel from 3 ( n , π * ) to 1 n 2 and a slow transition channel from 3 ( π , π * ) to 1 ( π , π * ), where the latter dominates the ultralong phosphorescence. As a proof of concept, a wearable passive light-emitting-diode indicator based on the carbon nanodots is demonstrated, enabling visual signaling in time-limited environments after power-off.
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CHEMICAL ENGINEERING JOURNAL
·
2026
·
IF 12.5
Enxiu Liu,Jing Zhao,Shixuan Wang,Yanzhuo Zhang,Xueting Song,Jinghua Lv,Xiaozhuan Zhang,Jianbiao Peng,Alexandr V. Bildyukevich
N/NS co-doping boosts PAA activation, removing 97.5% sulfonamides in 30 min. • EPR and electrochemistry verify dual-channel degradation dominated by 1 O 2 . • DFT confirms 1 O 2 -induced N-S scission and ring opening mitigate toxicity. • DOM-antibiotic complexation negligibly impacts degradation efficiency. Element-doped biochar has emerged as an effective catalyst for activating peracetic acid (PAA) toward antibiotic degradation. However, the electron transfer processes occurring at the biochar interface remain insufficiently understood. In this study, N-doped biochar (NBC) and N/S co-doped biochar (NSBC) are employed to efficiently degrade sulfonamide antibiotics through PAA activation. Active sites, including pyridinic N, thiophene S, and graphitic defects, synergistically promote PAA activation, preferentially generating singlet oxygen ( 1 O 2 ) accompanied by •OH and O 2 •− . Radical and non-radical pathways operate simultaneously, resulting in an average removal efficiency of 97.45% for the target sulfonamides within 30 min. Quenching experiments, electron paramagnetic resonance, and electrochemical analyses collectively confirm the dual-pathway activation mechanism. Liquid chromatography-mass spectrometry combined with density functional theory calculations reveals that the main transformation pathways involve S N bond cleavage, aromatic ring opening, and hydroxylation reactions. Toxicity prediction and plant growth assays further demonstrate a significant reduction in the overall toxicity of the degradation intermediates. In addition, dissolved organic matter released during the biochar reaction process forms complexes with sulfonamide antibiotics, although these interactions are insufficient to substantially affect antibiotic degradation efficiency. Overall, this study not only elucidates the multi-channel activation mechanism of the NBC/NSBC-PAA system but also provides experimental support for the practical application of biochar-based catalytic systems in water purification. Download: Download high-res image (110KB) Download: Download full-size image
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Nature Communications
·
2026
·
IF 18.1
Li Yuxiang,Xie Junliang,Weng Tingyi,Lu Zhenjie,Yan Xing,Liu Yanhui,Lu Shuaishuai,Zhang Shengli,Chen Huan,Jiang Fang
Despite the short-term industrial landscape remaining unchanged, green synthesis technologies for ammonia (NH 3 ) and hydroxylamine (NH 2 OH) are critical for carbon neutrality. Alternatively, electrocatalytic nitrate reduction (NIRR) can be integrated with membrane separation technology via a modular design, simultaneously achieving pollution control and resource recovery. However, the microscopic mechanism of NIRR remains ambiguous given the complex dynamic catalytic interface, hindering advanced catalyst development. Here, we propose a three-step synergistic mechanism at dynamic catalytic interface, which integrates interfacial microenvironment regulation, OH species cycle, and reverse hydrogen spillover for efficient NH 3 and NH 2 OH synthesis across different scenarios. Notably, dual-site heterostructure catalyst exhibits almost 100% NH 3 -Faradaic Efficiency (FE NH3 ) across a wide nitrate concentration range, reaching a maximum NH 3 yield of 10.27 mmol h −1 cm −2 . The simultaneous NH 3 synthesis-recovery system maintains almost 100% FE NH3 and NH 3 recovery efficiency over 120 h, accompanied by long-term durability and negligible performance degradation. Additionally, cyclopentanone-mediated NIRR process delivers a satisfactory NH 2 OH-Faradaic Efficiency (83.48%), and the assembled zinc-nitrate battery achieves a high peak power density (57.6 mW cm −2 ).
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ADVANCED FUNCTIONAL MATERIALS
·
2026
·
IF 19.9
Yue An,Na Tian,Wenying Yu,Xiaolei Zhang,Yiwei He,Haitao Liu,Yihe Zhang,Hongwei Huang
The efficient synthesis of hydrogen peroxide (H 2 O 2 ) through piezo-photocatalysis is a promising yet challenging sustainable route, primarily limited by inefficient charge separation and sluggish surface reaction kinetics. This study introduces an innovative bi-ionic (K + /Ca 2+ ) co-doping strategy to engineer graphitic carbon nitride, creating a high-performance catalyst for H 2 O 2 production. The bi-ionic doping structure, combined with introduced cyano groups, constructs multi-charge transfer channels and significantly enhances the piezoelectric polarization field, which dramatically promotes the directional separation and migration of photogenerated charge carriers. More importantly, the Ca 2+ sites and adjacent N-cyano groups form synergistic Frustrated Lewis pairs, which simultaneously facilitate spontaneous ethanol dissociation to supply protons and strongly adsorb and activate O 2 molecules. Consequently, the optimized catalyst shows an exceptional piezo-photocatalytic H 2 O 2 production rate of 24.95 mmol g −1 h −1 under visible light and ultrasound, significantly outperforming most reported analogues. Furthermore, we fabricated shape-tunable hydrogels by integrating the catalyst with Sil-MA, which not only facilitates catalyst recovery but also creates a beneficial gas-solid interface when coated on floating substrates. The floating hydrogel system maintains stable H 2 O 2 production, demonstrating great potential for practical applications. This work provides valuable insights into designing efficient piezo-photocatalytic systems for sustainable chemical synthesis.
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