Small
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2026
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IF 11.8
Xue Long,Wendong Yang,Hua Jiang,Linfeng Wang,Yilin Zeng,Pei Liu,Xuan Cai,Yifan Zhang,Zuoxuan Gan,Huaiyu Ke,Jiabao Sun,Jiangjiang Duan
The ferricyanide/ferrocyanide ([Fe(CN) 6 ] 3− /[Fe(CN) 6 ] 4− ) redox couple is widely used in energy storage and catalysis because of its rapid electron-transfer kinetics and excellent reversibility. Yet its chemistry in highly alkaline media (pH ≥ 14) remains incompletely understood. In particular, [Fe(CN) 6 ] 3− displays unexpectedly strong oxidizing activity under alkaline conditions despite its moderate redox potential (∼0.45 V vs. SHE). Here, we show that this apparent contradiction arises from the redox-mediated generation of hydroxyl radicals (•OH). Spectroscopic analyses, ab initio molecular dynamics (AIMD) simulations, and density functional theory (DFT) reveal that OH − penetrates and reorganizes the primary solvation shell of [Fe(CN) 6 ] 3− through hydrogen bonding (HB), enabling interfacial electron transfer from hydrogen-bonded water-hydroxide clusters (H 2 O···OH − ) to [Fe(CN) 6 ] 3− . Guided by this mechanism, we develop a [Fe(CN) 6 ] 3− -mediated Fenton-like anodic reaction (FerroOR) as a low-energy alternative to the oxygen evolution reaction (OER). When coupled with the hydrogen evolution reaction (HER), a catalyst-free carbon felt (CF) anode delivers 100 mA cm −2 at 1.45 V. These findings resolve a long-standing mechanistic puzzle and establish alkaline [Fe(CN) 6 ] 3− as a low-cost redox mediator for energy-efficient electrochemical oxidation.
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Small
·
2026
·
IF 11.8
Ziqi Dong,Feng Niu,Zeqi Wu,Xiaofan Zhou,Junyan Li,Dilshod Nematov,Saidjafar Murodzoda,Huaizhou Jin,Da Chen
The activation of inert C(sp 3 )-H bonds is the rate-determining step in photocatalytic selective oxidation of toluene, and the easy over-oxidation of target products makes it a great challenge in green organic synthesis. Herein, we report a semi-heterogeneous CeCl x -NHPI complex, which is constructed via the coordination of CeCl 3 and N-Hydroxyphthalimide (NHPI) for the efficient visible-light-driven selective oxidation of toluene to benzaldehyde under ambient conditions. Impressively, the catalyst achieved a maximum benzaldehyde formation rate of up to 2 mmol·g −1 ·h −1 in 5 h, with a benzaldehyde selectivity of 80.6%. Mechanistic studies show that the chlorine radicals (Cl·) generated from the coordinated Ce─Cl bond via the ligand-to-metal charge transfer (LMCT) process, and the phthalimide-N-oxyl (PINO) radicals formed from NHPI via single-electron transfer jointly promote the efficient activation of the inert C(sp 3 )-H bond in toluene. In addition, the CeCl x -NHPI complex exhibits good recyclability and broad substrate tolerance for the selective oxidation of various toluene derivatives. This work provides a novel strategy for the design of efficient rare earth-based semi-heterogeneous photocatalysts for the activation of C(sp 3 )-H bonds.
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APPLIED CATALYSIS B-ENVIRONMENTAL
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2026
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IF 19.7
Haojie Feng,Ju Huang,Yuanyuan Wang,Shichao Du,Xiaolei Wang,Ying Xie,Yu Fu,Mingxia Li,Zhimin Chen,Zhiyu Ren
Effectively separates biomass oxidation from parasitic OER using cuprous-integrated spinel heterostructures. • Suppresses OER by thermodynamically elevating the energy barrier for *OH deprotonation. • Unlocks a record-broad anodic potential window for stable high-voltage electrosynthesis. • Sustains ampere-scale currents (>4 A) with near-unity FDCA selectivity (>90%). • Demonstrates exceptional stability up to 2200 mV in a high-flux flow electrolyzer. The industrial viability of electrochemical biomass valorization is fundamentally throttled by the parasitic oxygen evolution reaction (OER), which severely confines the stable operational window. Here, we report a strategy for expanding the operational horizon of ampere-scale biomass electrorefining using a cuprous-integrated NiCo-spinel heterostructure (Ni 1.5 Co 1.5 O 4 -Cu 2 O) that effectively decouples these competing pathways. By engineering a cuprous-integrated heterostructure, we establish a functional dichotomy wherein synergistic Ni/Co sites activate 5-hydroxymethylfurfural, while the Cu 2 O moiety selectively suppresses OER by thermodynamically elevating the *OH deprotonation barrier. This design unlocks a record-broad anodic window and, when integrated into a flow cell, delivers an exceptional 2,5-furandicarboxylic acid yield (> 90%) at industrial-scale currents (> 4 A) across an extended voltage range (up to 2200 mV). In situ spectroscopy and density functional theory calculations validate this mechanism, confirming that optimized interfacial coupling drives the selective 5-hydroxymethyl-2-furancarboxylic acid pathway. This work provides a generalizable electronic-structure engineering strategy for high-performance, scalable organic electrosynthesis. Download: Download high-res image (227KB) Download: Download full-size image Interfacial engineering of a Cu 2 O-integrated NiCo-spinel heterostructure enables a functional-dichotomy strategy to decouple 5-hydroxymethylfurfural oxidation from parasitic oxygen evolution. By thermodynamically suppressing water oxidation, this design unlocks a record-wide operational window for stable, ampere-scale 2,5-furandicarboxylic acid production with near-quantitative yield, significantly expanding the operational horizon of biomass electrorefining.
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MACROMOLECULAR CHEMISTRY AND PHYSICS
·
2026
·Vol. 227
·期 6
·e70241
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IF 2.8
Nianzhi Tao,Yin Liu,Shanhu Chen,Dandan Lv,Yangyang Zhou,Qiuyu Zhang
Magnetic hypercrosslinked polymers (MHBs) featuring high surface areas and tunable magnetic responsiveness were synthesized through a streamlined two-step strategy. Hypercrosslinked polymers (HBs) were first produced by Friedel-Crafts alkylation of benzyl alcohol (BA) and formaldehyde dimethyl acetal (FDA) under FeCl 3 catalysis, in which catalyst dosage was optimized to regulate the pore architecture. Subsequent thermal treatment of HBs with Fe(acac) 3 under nitrogen enabled the in situ growth of Fe 3 O 4 nanoparticles, yielding magnetic composites with adjustable porosity and magnetization. Among the obtained materials, MHB-1 possessed a high specific surface area of 616 m 2 /g and a saturation magnetization of 21.1 emu/g. Batch adsorption experiments demonstrated that aniline uptake by MHB-1 followed a pseudo-second-order kinetic model and conformed to the Langmuir isotherm with a maximum capacity of 553.72 mg/g at 20°C. Thermodynamic results further indicated a spontaneous and exothermic adsorption process, while regeneration tests confirmed excellent recyclability with 92.8% capacity retention after five cycles. These findings highlight MHB-1 as a cost-efficient, magnetically separable, and structurally robust adsorbent with strong potential for practical aniline removal from contaminated water.
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JOURNAL OF NANOBIOTECHNOLOGY
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2026
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IF 15
Wei Zhang,Yanan Zhou,Zijun Li,Zhaowen Wang,Fangzheng Zhu,Yaoyu Zou,Nianshuang Li,Cong He,Nonghua Lu,Xiaolei Wang,Yin Zhu
Helicobacter pylori (H. pylori) infection has emerged as a serious risk factor for global human health. Current antibiotic-based clinical eradication therapies still have many challenges, including inadequate drug permeability across the gastric mucus barrier, H. pylori biofilm-induced antibiotic resistance and recurrent infections, as well as gut dysbacteriosis. Herein, we report a probiotic-nanozyme hybrid system (LP@FeTA/CuPt), which is formed by coupling polyphenol-coated Lactobacillus plantarum (LP@FeTA) and CuPt nanozymes. LP@FeTA effectively penetrates the gastric mucus barrier via autokinetic movement, and facilitates the targeted delivery of CuPt nanozymes within H. pylori biofilms by "eating" extracellular polymeric substances (EPS). CuPt nanozymes respond to the acidic and H 2 O 2 -rich biofilm microenvironment to generate reactive oxygen species (ROS) and release Cu ions, thereby achieving multi-target eradication of biofilms by interfering with H. pylori flagellar self-assembly, urease activity, outer membrane function and energy metabolism. Importantly, LP@FeTA/CuPt can be degraded by transferrin at the infection site, allowing the released CuPt nanozymes to reactivate the antibacterial immune functions of macrophage, thus eliminating biofilm-escaped bacterioplankton to prevent recurrent infections. Notably, LP@FeTA/CuPt also modulates gut microbiota homeostasis. This study provides a promising non-antibiotic therapeutic strategy for H. pylori infection.
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APPLIED SURFACE SCIENCE
·
2026
·
IF 6.6
Xiang Li,Haocheng Gai,Zhaoxin Li,Jiyao Zhang,Xiaolong Ma,Dawei Liu,Long Xu,Xiaoxun Ma
The oxidative coupling of alcohols and amines to imines represents a green and atom-economical route for C=N bond formation. Nevertheless, the rapid and efficient synthesis of high-performance oxide catalysts for this transformation remains a significant challenge. Herein, we report a novel carbon nanotube-mediated, microwave-assisted solution combustion method for the fabrication of manganese-doped ceria catalysts. The optimized Ce 7 Mn 3 O δ -20CN catalyst exhibits exceptional performance in oxidative coupling of alcohols and amines, achieving 95% conversion of benzyl alcohol and 99% selectivity toward the corresponding imine, along with enhanced recyclability. Comprehensive characterization reveals that Mn incorporation effectively suppresses crystallite growth and significantly enhances oxygen vacancy concentration compared to pure CeO 2 . More importantly, the multiple interaction effect between carbon nanotubes and microwave fields not only amplifies these structural and electronic advantages but also strengthens Ce-Mn interactions. Furthermore, this catalyst also demonstrates broad substrate tolerance across diverse alcohols and amines. Notably, this carbon-mediated microwave combustion synthesis strategy has been successfully extended to the synthesis of Zr-, Co-, Ni-, Fe-, and Al-doped ceria catalysts. This work offers a versatile and robust platform for the rapid synthesis of high-performance doped ceria-based materials tailored for sustainable oxidation catalysis.
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JOURNAL OF CHROMATOGRAPHY B-ANALYTICAL TECHNOLOGIES IN THE BIOMEDICAL AND LIFE SCIENCES
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2026
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IF 2.5
Pu Zhang,Shuang Feng,Yuru Feng,Jingqiong Lu,Zhiwang Han,Maurizio Quinto,Tao Sun,Xu Jing
Several novel hydrophobic natural deep eutectic solvents were developed. • A vortex-assisted liquid–liquid microextraction method was established. • The simple and efficient method was successfully applied to various urine samples. • The enhanced greenness was confirmed using AGREEprep, AGREE, and GAPI. A novel, facile, and environmentally friendly analytical method was developed based on vortex-assisted liquid-liquid microextraction and high-performance liquid chromatography with diode-array detection for detecting pyrethroid pesticides (PPs) in urine. Natural deep eutectic solvents (NADESs) were prepared using plant essential oil-derived monoterpenoids (thymol, carvacrol, and menthol) combined with aromatic primary alcohols (benzyl alcohol, phenethyl alcohol, and phenylpropyl alcohol) as hydrogen bond donors and acceptors. These solvents served as environmentally benign extraction media, thereby avoiding the use of conventional volatile, toxic organic solvents. NADESs are naturally derived, easy to prepare, biodegradable, and environmentally friendly solvents. Hydrophobic and π-π interactions between the NADESs and PPs may contribute to enhancing the affinity of PPs toward the NADESs phase. Vortex technology, accelerating mass transfer between the sample and extractant phases, enables fast extraction of PPs. Under optimized conditions, the method achieved a low detection limit (0.002 mg L −1 ), satisfactory precision with relative standard deviations (0.3%–2.4%), and acceptable recovery (80.7%–86.2%). The method demonstrated excellent performance in urine analysis and was feasible as a facile and green strategy for monitoring the content of PPs in biological matrices and assessing exposure risk.
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MICROCHEMICAL JOURNAL
·
2026
·
IF 5.2
Chaojun He,Xiaohui Wang,Shanshan Zhang,Xiaoya Zhang
A sensomics-driven analytical platform was built for complex floral matrices. • Integrated HS-SPME-GC-O-MS and OAV mapping resolved 104 trace volatiles. • Omission tests successfully corrected discrepancies in independent OAV modeling. • Nine key chemometric markers were extracted to discriminate cultivar profiles. Quantifying and validating key odor-active compounds (OACs) in complex botanical matrices remains a significant challenge in modern analytical chemistry due to trace concentrations and complex matrix interferences. Traditional volatile profiling often relies solely on mass spectrometry (MS) or independent odor activity value (OAV) calculations, which fail to account for intermolecular synergistic or antagonistic effects. Applying this approach to Fengdan [FD] and Ziban [ZB] tree peony organs, 104 volatiles were mapped, revealing organ-specific metabolic tracks. PCA and HCA indicate significant differences in volatile compounds from different organs of peony. Through GC-O, OAV, aroma recombination, and omission experiments, 23 and 26 key aroma compounds were identified in ZB and FD petals, respectively, which contribute significantly to the formation of peony petals. Based on VIP > 1, nine key differential aroma compounds such as nonanal and geraniol were screened, which can be used to distinguish the petal aroma differences between FD and ZB. These findings provide a theoretical basis for the development of peony flower beverages and food. Download: Download high-res image (121KB) Download: Download full-size image
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JOURNAL OF COLLOID AND INTERFACE SCIENCE
·
2026
·
IF 9.6
Wang Lv,Shangkai Qiu,Lu Xiong,Zhiyong Yan,Hou Wang,Yan Wu
Mo 4d-S 3p orbital hybridization effectively reshapes the electronic band structure. • Sulfur vacancies shift from recombination centers to efficient charge-transfer channels. • Mo S Ni bridging orbital channels establish a robust built-in electric field. • Mo–Ni orbital synergy enables a highly selective 2e⁻ oxygen reduction pathway. This work addresses the fundamental dilemma between charge separation efficiency and surface reaction selectivity in heterogeneous photocatalysis through synergistic orbital engineering. By introducing Mo dopants and sulfur vacancies (V S ) into Zn 3 In 2 S 6 , the localized electronic states of isolated V S are transformed into delocalized charge channels via strong Mo 4d-S 3p orbital hybridization. This orbital-level modulation effectively suppresses charge recombination while optimizing the band structure for visible-light absorption. Coupled with in-situ grown Ni 4 S 3 , an interfacial Mo-S-Ni orbital bridge is constructed, which not only establishes a robust built-in electric field to direct electron flow toward Ni 4 S 3 but also tailors the local coordination environment for selective two-electron oxygen reduction. The resulting heterojunction photocatalyst achieves an exceptional H 2 O 2 production rate of 163.0 ± 2.1 μM h −1 in pure water without any sacrificial agent. Notably, the H 2 O 2 production rate of 252.1 ± 2.4 μM h −1 is attained at a tetracycline hydrochloride (TC) concentration of 20 mg L −1 , 1.5 times higher than that in pure water. This study demonstrates that precise orbital coupling can integrate carrier dynamics management with reaction pathway control, providing a new design paradigm for noble metal-free, high-performance and multifunctional photocatalytic systems. Download: Download high-res image (216KB) Download: Download full-size image
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JOURNAL OF COLLOID AND INTERFACE SCIENCE
·
2026
·
IF 9.6
Minjuan Zhao,Zizhong Chen,Qi Zhao,Lu Wang,Xiuling Jiao,Yuguo Xia,Dairong Chen
Two-dimensional layered vanadium-based oxides have garnered significant attention due to their multivalent electronic configurations, abundant surface-active sites, and exceptional photocatalytic stability. However, conventional layered architectures suffer from tight interfacial stacking, which impedes charge carrier mobility and limits visible-light absorption efficiency, thereby constraining further enhancement of catalytic performance. This study employed an ultrasonic-assisted intercalation strategy to precisely embed Keggin-type Al₁₃ ([Al 13 O 4 (OH) 24 (H 2 O) 12 ] 7+ , the structure is represented by twelve AlO 6 octahedra and one central AlO 4 tetrahedron. These octahedra are interconnected via edge sharing and bonded to the central AlO 4 unit through corner sharing.) into the interlayer framework of VO x (exfoliated V 2 O 5 , denoted as VO x ), thereby establishing a multiscale synergistic regulation mechanism encompassing structural morphology, electronic states, and photophysical properties. Experimental evaluation of the photocatalytic oxidation activity toward benzyl alcohol demonstrated that the exfoliated two-dimensional nanosheets (VO x -Al 13 ) exhibited remarkable catalytic efficiency with a conversion rate of 99.7% and over 99% product selectivity, outperforming VO x . Femtosecond transient absorption (fs-TA) spectroscopic analysis revealed a dominant internal charge separation (ICS) state with a prolonged lifetime of 1.5 ns in VO x -Al 13 , which significantly enhanced charge transfer efficiency and catalytic reactivity. This study not only provides an effective modification strategy paradigm for optimizing layered transition metal oxides but also establishes a robust theoretical and experimental foundation for developing cost-effective, high-performance visible-light-driven photocatalytic systems with environmental sustainability. Download: Download high-res image (109KB) Download: Download full-size image
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SEPARATION AND PURIFICATION TECHNOLOGY
·
2026
·
IF 9.1
Haiyang Xie,Yuhan Chen,Xianni Li,Xiaoling Lu,Hao Lin,Yanjuan Zhang,Zuqiang Huang,Huayu Hu,Tao Gan
The selective oxidation of benzyl alcohol (BzOH) to benzaldehyde (BzH) is one of the effective methods for synthesizing chlorine-free benzaldehyde, but developing an efficient catalytic system remains a challenge. The peroxymonosulfate (PMS) is an inexpensive and soluble solid oxidant that has been widely used in oxidation reactions in aqueous media, however, there are still difficulties in activating PMS using atomically dispersed metal catalysts based on non-free radical pathways. Herein, an atomically dispersed manganese catalyst (Mn 1 /NLC), featuring electron-deficient Mn–N 2 O 2 sites anchored on a nitrogen and oxygen co-doped carbon support, is synthesized through a combined process of ball milling and high-temperature pyrolysis. The Mn 1 /NLC catalyst exhibits outstanding performance in the selective oxidation of BzOH to BzH by efficiently activating PMS, achieving 98.5% BzOH conversion and 99.2% BzH selectivity with a high turnover frequency of 1470.6 h −1 within 3 h at a PMS dosage of 10 mg and 45 °C, which surpasses the majority of the reported catalysts. Electron paramagnetic resonance, radical quenching experiments, and electrochemical analysis collectively reveal that the Mn–N 2 O 2 reaction sites lead to the formation of a high-valent Mn species, which enhances the adsorption of C H bonds and activation of PMS to significantly promote the occurrence of non-radical oxidation pathway, including singlet oxygen ( 1 O 2 ) generation and electron transfer processes (ETP). The synergistic effect of 1 O 2 and ETP enables Mn 1 /NLC to perform efficient and selective C H oxidation of various aromatic alcohols under mild conditions, while also demonstrating excellent cycling stability. This study provides a novel strategy for the design of high-performance atomically dispersed metal catalysts for the selective oxidation of aromatic alcohols.
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LANGMUIR
·
2026
·
IF 4.4
Jiahui Wang,Jingbiao Ge,Huihui Xue,Yang Yang,Sujuan Zhang,Xiuzhen Zheng,Shifu Chen
Photocatalytic water splitting is an effective way to produce H2 and a key research direction in H2 energy development. In this paper, a Fe/FeP/ZnIn2S4 (Fe/FeP/ZIS) composite was prepared by a self-assembly method, with 2D Fe/FeP nanorods attached to the surface of 3D ZnIn2S4 (ZIS) microflowers. When the mass percentage of Fe/FeP loading was 5%, the Fe/FeP/ZIS heterojunction exhibited the best photocatalytic performance (4.56 mmol·g–1·h–1), much higher than that of Fe/FeP and ZIS. The significantly enhanced activity of Fe/FeP/ZIS was ascribed to the close interface contact formed between Fe/FeP and ZIS, which accelerated the separation and transfer of photogenerated charge carriers (PCCs). This study not only offers a reference for the design of novel non-noble cocatalysts but also promotes the improvement in the utilization efficiency of PCCs.
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危险品化学品经营许可证（带存储）