CHEMICAL ENGINEERING JOURNAL
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2026
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IF 12.5
Xueyan Chen,Hua Deng,Min Chen,Xiaoxiao Qin,Ling Wang,Changbin Zhang
Supports play a pivotal role in noble metal-supported catalysts by regulating the dispersion, electronic structure, and interfacial interactions of active species, as well as influencing the adsorption and activation of reactants. Herein, we demonstrated that the coordination structure of oxide supports critically dictates the catalytic performance of Ag-based catalysts in formaldehyde (HCHO) oxidation. Although Ag/Al 2 O 3 and Ag/TiO 2 possessed comparable Ag particle sizes, oxidation states, and redox properties, their activities differed substantially: Ag/Al 2 O 3 achieved complete HCHO conversion at 80 °C, while Ag/TiO 2 required 170 °C under identical conditions. In situ DRIFTS results revealed that HCHO was transformed into formate intermediates on both supports, but Al 2 O 3 stabilized two distinct formate configurations, whereas TiO 2 favored a single adsorption mode. More importantly, formates on Ag/Al 2 O 3 decomposed at much lower temperatures than those on Ag/TiO 2 , suggesting enhanced intermediate reactivity. Density functional theory (DFT) calculations confirmed that the diverse coordination environments of surface Al atoms enable multiple formate adsorption modes with lower C H bond dissociation barriers compared to Ti sites. These results establish that the support coordination structure governs intermediate configurations and their transformation kinetics, offering mechanistic insights into the superior oxidation activity of Ag/Al 2 O 3 and providing guidance for the rational design of efficient Ag-based catalysts for HCHO purification.
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SEPARATION AND PURIFICATION TECHNOLOGY
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2026
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IF 9.1
Dongcheng Li,Shenghu Wang,Huanji Song,Xianying Xu,Shihao Yang,Yuyang Dong,Yan Luo,Weiyang Lv
Efficient and sustainable Fenton-like systems are highly desired for degrading persistent pollutants. However, their development is often hindered by the slow redox kinetics and poor durability of single active sites in conventional metal-based catalysts. Herein, we developed a bimetallic Fe/Cu catalyst (FeCu-BN) with highly dispersed metal sites anchored on boron nitride (BN), which offered boosted activity and stability via the cooperative redox cycles between Fe and Cu sites. The FeCu-BN catalyst achieved nearly 100% removal of sulfamethoxazole (SMX) within 20 min through activating peroxymonosulfate (PMS), with a rate constant of 0.421 min − 1 significantly surpassing those of its monometallic counterparts and other advanced catalysts. Systematic experiments and theoretical calculations revealed that the Cu sites not only optimized the electronic structure of the Fe sites but also provided electrons extracted from pollutants to promote the Fe 2+ /Fe 3+ cycle, thereby triggering concerted radical and non-radical reactions for SMX elimination. Consequently, the FeCu-BN/PMS catalytic system operated stably over a wide pH range and exhibited exceptional tolerance to various inorganic ions and complex aqueous matrices. Furthermore, in a continuous flow membrane reactor, the system maintained efficient SMX removal over 20 h without significant performance loss. This work uncovered the synergistic redox cycling mechanism in bimetallic catalysts and offered valuable insights for designing dual-site catalysts for environmental remediation.
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CHEMICAL ENGINEERING JOURNAL
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2026
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IF 12.5
Sijie Yu,Taotao Qiang,Xiaoyong Dong,Congcong Lin,Xiaonan Ruan,Guannan Dong,Haiyang Hu,Fangfang Dong,Chen Mi,Tianlin Chen,Chen Zhang,Longfang Ren
In order to realize the multi-scenario application of flexible sensors, a multifunctional polyurethane with a dynamic reversible/conductive irreversible dual network structure (SHPU@CNT/Ag) was developed. Specifically, the self-developed amino-terminated triphenylboroxine (ATPB) and hydroxylated multi-walled carbon nanotubes (MWCNT-OH) were cross-linked with polyurethane prepolymer, and then mixed with Ag NPs to obtain SHPU@CNT/Ag. The rapid photothermal conversion of SHPU@CNT/Ag (67.8 °C in 5 min) promotes the reorganization of dynamic bonds, showing 93.6% of self-healing efficiency at 80 °C and 30% of humidity. On this basis, we fabricated a wearable flexible synthetic leather sensor by coating SHPU@CNT/Ag solution on the surface of nonwoven fabrics. The electromagnetic interference (EMI) shielding efficiency of the resulting SHPU@CNT/Ag synthetic leather sensor reaches 34.43 dB, and it can real-time monitor human movement signals during playing badminton, achieving an integrated construction of electromagnetic shielding protection, photothermal self-healing and motion sensing. It is noted that the SHPU@CNT/Ag synthetic leather sensor has excellent air permeability (11,321 mL/cm 2 ·h), abrasion resistance and antibacterial performance. This study provides a new way for the development of smart devices, showing broad application prospects in wearable electronics and medical rehabilitation.
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JOURNAL OF COLLOID AND INTERFACE SCIENCE
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2026
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IF 9.6
Yuwen Shen,Bohan Cheng,Bing Liu,Shuying Jiao,Xinhao Gao,Hongcui Dai,Jinling Lv,Deshui Tan,Zongxin Li
This study demonstrates how the packing parameter ( P ) of cationic surfactants governs the efficacy of organo-bentonites in stabilizing soil organic carbon (SOC). A series of organo-bentonites, synthesized with single- and double-chain surfactants (C12–C18), were evaluated for their capacity to stabilize labile SOC. Higher P values promoted denser hydrophobic domains, primarily on the external surface of the bentonite, which enhanced the adsorption capacity for potassium fulvate (FA, the proxy for SOC). Didodecyldimethylammonium bromide-modified bentonite (DDAB-Bent), with the highest packing parameter ( P = 0.5–0.6), achieved the highest FA equilibrium adsorption (428.93 mg/g). In soil incubation studies, DDAB-Bent reduced cumulative carbon mineralization by 40.18% compared to the control. In a 30-day pot experiment with Chinese cabbage, DDAB-Bent increased total SOC content by 35.42%, mineral-associated organic carbon (MAOC) by 51.76%, and plant biomass by 28%. Molecular dynamics simulations of the confined interlayer confirmed that higher P values lead to more compact surfactant aggregates and stronger FA adsorption. This study therefore validates the packing parameter as a key design tool for engineering organo-bentonites for enhanced SOC stabilization in agricultural soils.
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WATER RESEARCH
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2026
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IF 12.8
Huihui Peng,Mengchun Zhou,Yan Zhang,Ankang Wang,Chenying Zhou,Chuanshu He,Yongjia Lei,Peng Zhou,Bo Lai
The widespread discharge of phosphonates into aquatic ecosystems has triggered a wave of global environmental concerns, primarily due to their recognized persistence and significant ecological risks. In order to avoid the potential environmental risks associated with phosphate, the coupled strategy of oxidation and precipitation to mineralize phosphonates and immobilize the orthophosphate (o-PO 4 ) has become the main focus of current research. This strategy can be achieved through the morphological changes of iron species in the Fenton process. However, the conventional Fenton process is limited by the slow reduction rate of Fe(III), resulting in high iron-sludge output. Here, we use microscale zero-valent iron (mZVI) as an electron donor and exploit the strong iron-phosphorus coordination effect to develop a mZVI-based two-stage oxidation process (mZVI/air-Fenton). This process can achieve 75% to 100% removal of various phosphonates, and the iron sludge production is 49.6% lower than that of the Fenton process. The experimental results combined with theoretical calculations indicate that phosphonates coordinate with iron to form complexes, which induce electron redistribution on phosphonates through the ligand to metal charge transfer (LMCT) effect, reduce C-P bond energy, and form intermediates susceptible to radical attack. This coordination effect can dynamically remove the passivation layer on mZVI and promote the continuous activation and release of mZVI. In addition, this coordination effect reduces the redox potential of Fe(III)/Fe(II) by 0.14 V through intramolecular charge transfer, which greatly speeds up the cycle of iron, improves the utilization efficiency of iron electrons, and increases the yield of hydroxyl radical ( • OH) by 3.1 times. Therefore, this study provides an innovative improved Fenton oxidation process for the efficient treatment of organophosphorus wastewaters and significant iron-sludge reduction.
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APPLIED CATALYSIS B-ENVIRONMENTAL
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2026
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IF 19.7
Wenkang Miao,Ronghui Hao,Wanyin Xu,Zihan Wang,Wenxin Lin,Heguang Liu,Wei Ren,Qianqian Li,Runhai Ouyang,Anmin Nie,Jinsong Wu,Hongtao Wang
Single-atom catalysts (SACs) have shown exceptional performance in heterogeneous catalysis, yet their practical application remains hindered largely due to their susceptibility to sintering and subsequent deactivation under harsh reaction conditions. To address the instability, we focused on Cu SACs/Al 2 O 3 and developed a novel dynamic thermostability system by introducing the functional CeO 2 oxide that serves as oxygen reservoir to suppress the sintering. High stability of the Cu SACs was directly observed through in situ aberration-corrected environmental scanning transmission electron microscopy under both thermal oxidation and reduction conditions. Combining first-principles calculations, we revealed that the ultra-stable Cu SACs was achieved by the sustained lattice oxygen supply from reversible ultrasmall CeO 2 (2.25 nm) decomposition to form mobile O x -Cu species, which establishes a dynamic equilibrium between the catalytically active O-Cu and sintering-resistant O 2 -Cu monomers. We found this stabilization strategy by introducing the CeO 2 oxide as oxygen reservoir can be effectively extended to a broad range of SACs (Ag, Co, Pt, Fe, Ni) on 3 different oxide supports (ZnO, TiO 2 , SiO 2 ). We anticipate this strategy and insights can be helpful in designing highly active and stable SACs toward industrialization.
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FOOD CHEMISTRY
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2026
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IF 10.4
Jing Li,Huihui Tian,Miaomiao Dong,Yimeng Ren,Longzhu Zhou,Yujie Shi,Qingyu Zhao,Chaohua Tang,Junmin Zhang,Yueyu Bai
Intramuscular fat (IMF) content and lipid classes affect beef aroma, but their interindividual variations and impacts on aroma formation remain unclear. Here, we investigated the impact of divergent IMF/neutral lipid–phospholipid profiles on lipidomes and odorant profiles via absolute quantitative lipidomics and volatilomics. Lipidomic analysis revealed significant alterations in free fatty acids (FFAs), phosphatidylcholines (PCs), phosphatidylethanolamines (PEs), and triglycerides (TGs), collectively driving interindividual variations at both class and molecular levels. Moreover, unsaturated fatty acyl compositions of these lipids showed group-specific differences, with TGs, PCs, and FFAs dominated by C18:1 and C18:2 chains, while PEs were enriched in C18:2 and C20:4. Thirteen odor-active compounds were identified as critical to beef aroma, with hexanal, pentanal, 1-octen-3-ol, 1-octen-3-one, nonanal showing 74%, 27%, 54%, 38%, 34% inter-group differences in content, respectively ( p < 0.05). Specific fatty acyl-containing TGs, PCs, and PEs (C18:1, C18:2, and C18:1e) were critical for odorant generation and retention.
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JOURNAL OF CATALYSIS
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2026
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IF 6
Yuting Luo,Qingyi Lv,Huai Liu,Rui Zhang,Wenlong Jia,Lincai Peng
The structural reconstruction of Cu-based catalysts during the hydrodeoxygenation (HDO) process typically leads to the loss of active Cu + species and catalyst sintering, resulting in catalyst deactivation. Herein, we found that Pr-doped CuO x catalyst undergoes in-situ reconstruction to generate stable Cu + species during the HDO of vanillin (VAN) to 2-methoxy-4-methylphenol (MMP). This affords a high MMP yield of 85.5% using methanol as both the solvent and hydrogen donor, which is significant higher than that of pristine CuO x and previously reported catalysts for the HDO of VAN in MeOH. Electronic interactions between Pr dopants and the CuO x matrix strengthen the Cu–O bonds and stabilize Cu + species, thereby increasing the density of acidic sites and oxygen vacancies in the catalyst. This not only promotes MeOH decomposition for H 2 generation, but also facilitates VAN adsorption and activation, thereby boosting HDO activity. This work offers new insights for the in-situ construction of highly active and durable Cu + sites in Cu-based catalysts.
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SEPARATION AND PURIFICATION TECHNOLOGY
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2026
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IF 9.1
Huan Yan,Zhichao Liu,Qinlan Luo,Yangqiang Huang,Xiao Luo,Hao Chen
Because redox reactions involve electron transfer, modulating the electronic properties of catalysts can facilitate electron exchange between reactants and the catalyst surface, improving catalytic performance, especially for oxygen activation-based Fenton-like reaction. In this study, a series of boron nitride (BN) materials with varying nitrogen defect ratios were synthesized to modulate the electron distribution and transfer between the BN support and the Fe 2 O 3 anchored at defect sites. Combined characterizations of X-ray photoelectron spectroscopy (XPS), electron paramagnetic resonance (EPR), electrochemical impedance spectroscopy (EIS), and X-ray absorption fine structure spectroscopy (XAFS), we confirm that the interfacial electronic properties between Fe 2 O 3 and the support defects in Fe/BN-1 endow the Fe 2 O 3 with a relatively high local electron density. Specifically, the defect-rich BN-1 support donates electrons to the loaded Fe 2 O 3 , significantly enhancing the electron cloud density of the Fe active centers. Density functional theory (DFT) calculation further indicates that the Fe sites induced by N defects in h-BN are in an electron-rich state. This unique electronic structure facilitates electron transfer from the Fe sites to H 2 O 2 , thereby effectively promoting the subsequent activation of H 2 O 2 . As a result, Fe/BN-1 achieves an optimal Fenton-like catalytic activity for 96% tetracycline (TC) removal within 30 min, owing to its superior defect ratio and stronger interfacial interaction with Fe 2 O 3 . This work provides a foundation for the use of tunable defects in 2D materials to modulate the electronic properties of the metal supported on them for improved industrial redox reactions.
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IEEE SENSORS JOURNAL
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2026
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IF 4.5
Enyu Zhou,Dou Che,Yeshun Zhang,Hui Yan
Thiamethoxam (THI), a widely used neonicotinoid pesticide, is of crucial significance for the accurate detection of THI in terms of environmental and food safety. In this study, a portable fluorescent aptasensor was developed for the rapid and sensitive detection of thiamethoxam (THI). Based on the principle of fluorescence resonance energy transfer (FRET), the sensor system consists of THI-specific aptamers (UCNPs-apt) and upconversion nanoparticles (UCNPs) functionalized with graphene oxide (GO). Compared to conventional fluorophores, UCNPs exhibit minimal background fluorescence, thereby minimizing interference in complex matrices such as food samples. Key parameters, including GO concentration (0.15 mg/mL), UCNPs/GO incubation time (40 min), pH (7.4), and THI reaction time (30 min), were optimized to maximize fluorescence quenching and target-induced recovery. The sensor showed a linear detection range of 0.1–100 ng/mL and a limit of detection (LOD) of 0.088 ng/mL, with excellent selectivity and reproducibility. The method was validated using peach and mulberry leaf samples, yielding results consistent with ELISA (recoveries: 98.79–113.04%; relative standard deviations: 0.46–1.92%). The integrated portable system, leveraging aptamer specificity and compact instrumentation, enables on-site monitoring and addresses the urgent need for rapid field-deployable detection of THI residues.
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IEEE SENSORS JOURNAL
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2026
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IF 4.5
Hongqiang Li,Junqu Zhang,Xiaolin Li,Ming Han,Lizhen Zhang,Yueting Yang,Kangming Xu,Lu Cao,Enbang Li
Accurate monitoring of the blood glucose concentration is critically important for the diagnosis, treatment, and long-term management of diabetes. In this paper， an optical blood glucose sensing method is proposed on the basis of silicon-based waveguide Bragg grating (WBG). This method involves the reaction between glucose oxidase fixed on the cladding of the waveguide and glucose, which causes a local refractive index change, resulting in a shift in the WBG reflection center wavelength, enabling the quantitative detection of blood glucose concentration. Nevertheless, during measurement, optical blood glucose sensors are susceptible to spectral drifts caused by environmental temperature variations, leading to a decrease in sensing accuracy. To address this issue, a silicon-on-insulator (SOI) WBG sensor for glucose concentration measurement is proposed and implemented. Two types of WBG blood glucose sensors, namely, bilateral and slit sensors, are designed, incorporating an athermalization design to enhance system stability and environmental robustness. By employing a compensating material with a negative thermo-optic coefficient (TOC) and optimizing various waveguide structural parameters, temperature-induced drift is effectively suppressed, which enables the design of bilateral and slit WBG glucose sensors with both glucose sensing and temperature compensation capabilities. The experimental results show that the bilateral WBG glucose sensor exhibits a refractive index sensitivity of 161 nm/refractive index unit (RIU) and a temperature sensitivity of 7.27 pm/°C within a glucose concentration range of 0–2.6 mg/mL. The slit WBG glucose sensor has a refractive index sensitivity of 242.3 nm/RIU and a temperature sensitivity of 2.37 pm/°C within the 0–2.8 mg/mL glucose concentration range.
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WATER RESEARCH
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2026
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IF 12.8
Shujuan Guo,Nannan Zhang,Cuicui Wang,Yangyan Gao,Lixuan Ma,Maolian Guo,Jianfeng Li,Huazhang Zhao
Membrane fouling remains a critical barrier to the sustainable application of membrane distillation (MD) for organic wastewater treatment. To address this, we developed a superomniphobic membrane with switchable UV-cleaning and dark-healing capabilities. The 17F-STNRs/PVDF membrane was fabricated by grafting SiO 2 -supported TiO 2 nanoarrays (STNRs) onto a PVDF substrate via silane coupling followed by fluorination. It exhibited exceptional stability and anti-wetting performance, with water and ethylene glycol contact angles exceeding 153° and sliding angles below 10°. In 24-h MD tests using simulated wastewater containing humic acid (HA), sodium dodecyl sulfate (SDS), and bovine serum albumin (BSA), it showed significantly enhanced anti-fouling performance, achieving flux retention rates 40.2%, 62.9%, and 10.8% higher, respectively, than pristine PVDF while maintaining near complete salt rejection. In a 72-h MD test with 3.5 wt% NaCl solution, the modified membrane exhibited exceptional stability with an extremely low flux decay rate of merely 12.3%. Crucially, the membrane enabled efficient UV-triggered self-cleaning, removing foulants within 4 h of exposure, and fully recovered its initial superomniphobicity after 24 h in the dark, demonstrating stable multi-cycle (≥5) reusability. Mechanistic studies combining EDS, XPS experimental analysis and DFT calculations revealed that this switchable behavior was driven by UV-induced radical-catalyzed oxidation followed by dark-assisted wettability recovery. This work demonstrates how integrating photocatalytic cleaning with reversible surface regeneration enables in situ, energy-efficient membrane maintenance, providing a feasible strategy toward sustainable MD.
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