INORGANIC CHEMISTRY COMMUNICATIONS
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2026
·
IF 5.9
Ying-hong La,Wen-jia Ha,Yong-hu Ma,Zhi-qiang Wu,Hong-jian Zhao
In this work, an S-scheme heterojunction photocatalyst composed of Fe-MOF-NH 2 -modified BiOCl (denoted as BFN) was successfully prepared via a one-step hydrothermal technique for the efficient photocatalytic (PC) decomposition of tetracycline hydrochloride (TC-HCl). The morphology, crystal structure, composition, specific surface area, and photoelectric characteristics of BFN were systematically characterized using multiple techniques. XRD patterns confirm the successful fabrication of Fe-MOF-NH 2 /BiOCl (BFN) heterostructures. Introducing Fe-MOF-NH 2 shrinks BiOCl lattices via partial replacement of Bi 3+ with smaller Fe 3+ , which further exposes more active BiOCl (110) facets. SEM images display BiOCl nanosheets evenly grown on spindle hexagonal Fe-MOF-NH 2 to create compact heterointerfaces. This structure optimizes pore configuration and light capture. Owing to its elaborate heterojunction and regulated crystal texture, BET data confirm the optimal BFN possesses a high specific surface area of 116.2 m 2 ‧g −1 . UV–vis DRS further verifies a 420 nm red shift in its light absorption edge. XPS and EPR analyses reveal that the oxygen vacancy concentration in the heterojunction is significantly increased, 3 and 8 times higher compared to those of Fe-MOF-NH 2 and BiOCl, respectively. The compact S-scheme heterojunction constructs a directional charge-carrier transfer pathway. This structure strongly suppresses photocarrier recombination while preserving robust redox potentials. Higher photocurrent density and lower EIS impedance jointly confirm accelerated charge separation. PC experiments demonstrate that the 70% BFN sample achieves markedly higher degradation efficiency for TC-HCl under Light-emitting diode (LED) lamp irradiation compared with the individual components, and the degradation process involves multiple reactive species, including h + , ·O 2 − , and ·OH. LC-MS analysis revealed three possible degradation pathways, and hydroponic toxicity tests using mung bean as the model plant confirmed that the TC-HCl degradation products exhibit substantially reduced biotoxicity and even exert a certain growth-promoting effect. This study unveils the quadruple synergism of extended light absorption, S-scheme carrier migration, abundant oxygen vacancies and enhanced surface adsorption, offering experimental and theoretical support for bismuth/MOF photocatalysts in antibiotic wastewater remediation and agricultural ecological protection.
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JOURNAL OF POWER SOURCES
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2026
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IF 8.4
Guichao Zhang,Beibei Li,Hua Ning,Jiaxin Li,Wenkang Liu,Lanlan Li,Xinghua Zhang,Xiaojing Yang,Xiaofei Yu,Zunming Lu
The sluggish oxygen evolution reaction (OER) and oxygen reduction reaction (ORR) kinetics at the air cathode impede the performance of zinc-air batteries (ZABs). Although single-atom catalysts obtained from metal-organic frameworks (MOFs) exhibit impressive catalytic activities, metal species tend to aggregate during the pyrolysis, making it difficult to achieve highly dispersed atomic active sites. To address this issue, a dual-MOF strategy was employed to successfully synthesize Fe single-atom catalyst (Fe/NC-920) from ZIF-8@MIL-101(Fe)#20. During the pyrolysis, Zn volatilization from ZIF-8 generated anchoring sites, while Fe atoms from MIL-101(Fe) were stabilized at these sites, forming stable Fe-N 4 coordination. Due to the rich porous structure and the highly dispersed active sites, Fe/NC-920 exhibited superior OER (an overpotential of 310 mV at 10 mA cm −2 ) and ORR (a half-wave potential of 0.90 V) activities. Besides, the ZAB based on Fe/NC-920 demonstrated superior stability than the ZAB based on Pt/C + RuO 2 . This strategy provides a feasible approach for the development of effective ZAB catalysts.
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APPLIED CATALYSIS B-ENVIRONMENTAL
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2026
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IF 19.7
Jiaman Wang,Zekai Cui,Yuechang Wei,Zhiling Tang,Jing Xiong,Yingli Wang,Xiong Wang,Xuanzhen Li,Yunpeng Liu,Zhen Zhao
MOF-derived Ag 2 O/TiO 2 p-n heterojunction enhances charge separation. • Ag 2 O acts as a proton shuttle, enabling selective CO 2 reduction to CH 4 . • In-situ DRIFTS and DFT reveal the key role of *CO protonation. • Achieves 27.89 μmol g −1 h −1 CH 4 rate with 85.87% selectivity. The photocatalytic conversion efficiency of CO 2 with H 2 O to hydrocarbons is dependent on the simultaneous enrichment of protons and electrons. Herein, the composite photocatalyst of Ag 2 O/TiO 2 were constructed by anchoring Ag 2 O species onto the MOF-derived TiO 2 support via a laser deposition technique. The optimally engineered Ag 2 O/TiO 2 photocatalyst exhibited a remarkable CH 4 selectivity of 85.87% with a formation rate of 27.89 μmol g −1 h −1 in the photocatalytic reduction of CO 2 to CH 4 , surpassing the near-zero CH 4 yield of pristine MIL-125(Ti). By combining the results of in situ DRIFT spectra and density functional theory calculations, the photocatalytic mechanism is proposed: The catalytic interface effectively overcomes the kinetic bottleneck of *CO hydrogenation, by synchronously delivering enriched protons from the Ag 2 O sites and photogenerated electrons from the MOF-derived TiO 2 support. This targeted facilitation of the critical *CO protonation step suppresses intermediate desorption which dictates the selectivity toward CH 4 . This work unveils a universal strategy of coupling robust MOF-derived microenvironments with dynamic proton-electron delivery to overcome kinetic limitations in multi-step catalytic processes. Download: Download high-res image (277KB) Download: Download full-size image
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INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
·
2026
·
IF 3.9
Jundi Xiong,Jian Yu,Yuan Wang,Shaojun Yuan
Carbon aerogels are emerging as promising functional materials; however, their application in adsorption and energy storage is hindered by the inherently low density of active sites. Herein, ZIF-8/N-doped alginate-derived carbon aerogels (ZSCA) were synthesized via in situ growth of ZIF-8 on freeze-dried alginate aerogel precursors and subsequent treatment of pyrolysis and chemical activation for high-performance CO2 capture and supercapacitor applications. In this strategy, ZIF-8 served as a structural template, alginate provided a biomass-derived carbon source, polyethylenimine (PEI) acted as a nitrogen dopant and a costructure director, and potassium citrate functioned as the activating agent. The optimized ZSCA-550-1 (pyrolyzed at 550 °C with an activator-to-precursor mass ratio of 1:1) showed a high specific surface area of 811.34 m2/g, a micropore volume of 0.31 cm3/g, and a nitrogen content of 8.77 wt %. At 273.15 and 298.15 K (1 bar), ZSCA-550-1 achieved excellent CO2 adsorption capacities of 5.96 and 4.40 mmol/g, respectively, outperforming both SA-550-1 (2.79 mmol/g) and ZPC-550-1 (3.20 mmol/g). It also showed high CO2/N2 selectivity (35.0) and retained 94% capacity after 10 adsorption–desorption cycles. As a supercapacitor electrode, ZSCA-650-1 delivered 214 F/g at 1 A/g, with 88.6% capacitance retention over 5000 charge–discharge cycles at 10 A/g. This study introduces a sustainable strategy for the design and engineering of biomass-derived carbon aerogels with dual functionality in CO2 capture and electrochemical energy storage.
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ACS Biomaterials Science & Engineering
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2026
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IF 6
Yanpei Zou,Yining Huang,Chenyu Wang,Tianlong Zhang,Haocheng Xu,Hailong Li,Yitong Xue,Xiaosheng Ma,Linli Li,Fan Zhang,Feizhou Lyu
Bone regeneration is a multifaceted process that requires the coordinated interactions among osteoblasts, endothelial cells, and even osteoclasts. Current biomaterials, however, rarely combine the capacity for multicellular modulation with ease of fabrication and high biocompatibility. Herein, a simple strategy of introducing tannic acid (TA) and MgFe layered double hydroxide (MgFe-LDH), as metal-organic frameworks (MOFs), into silk fibroin (SF) hydrogel is developed to construct a highly biocompatible, multi-functional hydrogel (SF/TA/MgFeLDH) system. The MOFs structure not only enhances the mechanical properties but also avoids rapid degradation of conventional SF/TA hydrogel, providing a good match to bone regeneration. More importantly, the SF/TA/MgFeLDH hydrogel system exhibits good promotion of osteogenic differentiation and angiogenesis while simultaneously suppressing the osteoclastic differentiation in vitro, due to the sustained release of bioactive Mg2+ and Fe3+ ions. Mechanistically, bulk RNA sequencing (RNA-seq) revealed that the hydrogel promotes osteogenesis by upregulating endogenous bone morphogenetic protein-2 (BMP2), which subsequently activates the downstream BMP2/SMAD/RUNX2 signaling pathway. Finally, in multiple bone defect animal models, the system exhibits superior vascularized bone regeneration ability compared to SF/TA controls. This study provides a promising biomaterial with potential clinical application for targeting bone regeneration.
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PubMed
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ANALYTICAL AND BIOANALYTICAL CHEMISTRY
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2026
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IF 4.1
Zhao Zhenghong,Xu Shuzhen,Xu Yue,Liao Guoming,Pan Changbing,Zhang Lianming,Ye Fanggui,Li Jianping
Molecularly imprinted nanozymes (MINs) offer a compelling alternative to antibody-based assays by integrating specific molecular recognition with enzyme-like catalytic activity. Nevertheless, conventional molecular imprinting of glycoproteins remains technically challenging. In this work, employing CA19-9 as a model glycoprotein biomarker, we develop a surface-directed glycan imprinting strategy by integrating molecular imprinting technology with iron-based metal-organic framework (MIL-88B-NH 2 ) nanozymes. The characteristic glycan of CA19-9 (sialyl Lewis A, SLe a ) is pre-adsorbed onto the amino-rich MIL-88B-NH 2 surface via hydrogen bonding and boronic acid affinity, followed by sol-gel polymerization to grow an imprinted shell. After template removal, the recognition cavities are automatically positioned within nanometers of the intrinsic Fe catalytic sites. Upon specific binding of CA19-9, steric hindrance exerted by the protein backbone impedes diffusion of the chromogenic substrate 3,3′,5,5′-tetramethylbenzidine (TMB) to the surface of MOF, resulting in quantifiable suppression of color development. The developed sensor demonstrates sensitive detection of CA19-9 across a wide linear range from 0.001 to 50 U mL −1 , with a detection limit of 1.01 × 10 −4 U mL −1 (3σ/slope), and shows excellent selectivity in serum samples. This work provides a stable, cost-effective, and visual biosensing platform with significant potential for point-of-care biomarker testing. Graphical
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Food Analytical Methods
·
2026
·Vol. 19
·期 10
·274
·
IF 3
Wang Shiyi,Feng Kunyang,Zhao Minzhu,Wang Yusen,He Xin,Wang Qi,Wang Hanting,Li Jianbo
Organophosphorus pesticides (OPs) are extensively used for pest control in crops, yet their residues pose potential threats to food safety and human health. Therefore, this study developed a dual-ligand metal–organic framework with stable red fluorescence as a ratiometric fluorescent sensor for highly sensitive detection of omethoate (OMT). The sensor utilizes Eu 3 ⁺ as the metal node and employs 3,5-dicarboxyphenylboronic acid (BBDC) and 2-hydroxyterephthalic acid (BDC-OH) as mixed organic ligands. The introduction of OMT significantly quenches the red fluorescence of Eu-BBDC/BDC-OH through the inner filter effect (IFE), enabling the quantitative analysis of OMT. The sensor exhibits a good linear response within the ranges of 0.025–0.3 μg/mL and 0.3–0.9 μg/mL, with a detection limit of 7.35 ng/mL, and demonstrates excellent selectivity. Recoveries of OMT from strawberry and cucumber samples ranged from 95.74% to 101.1%, with relative standard deviations of 0.59%-5.91%, validating the reliability and practicality of the method. Moreover, a paper-based sensor integrated with smartphone RGB analysis was constructed, allowing rapid, real-time, and visual detection of OMT residues.
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FOOD CHEMISTRY
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2026
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IF 10.4
Wenzhi Zhang,Jinzhu Ma,Henggang Wang,Yunkai Lv,Zhuo Li,Zhenguang Wang
Discriminating structurally similar Aminoglycoside antibiotics (AG) subtypes is highly desired yet remains a challenge. In this study, we developed a colorimetric and fluorescent dual-channel sensor array based on the inhibition of acetylcholinesterase-like activity MOF-808-Al for the discrimination of four AGs. The sensor leverages the competitive binding of AGs to Lewis acid and metal–OH sites on MOF-808-Al, which inhibits its AChE-like activity and prevents the generation of thiocholine. This in turn modulates the oxidation of o -phenylenediamine by Cu 2+ , leading to concentration-dependent changes in absorbance at 416 nm and fluorescence at 560 nm. The sensor array, combined with pattern recognition methods (PCA and HCA), successfully discriminated AGs in individual, binary, and ternary mixtures, as well as in real food samples (milk, pork, honey) with high accuracy, recovery (100.0–109.6%), and low RSD (~2%). This work presents a sensitive, specific, and practical platform for AG discrimination in complex matrices.
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INORGANIC CHEMISTRY
·
2026
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IF 4.6
Han Yang,Huan Dai,Shimin Fan,Kaiwen Lei,Yunjie Luo,Fanjun Meng,Wei Xu
Metal–organic frameworks (MOFs) represent a prominent research direction for the heterogeneous catalytic conversion of carbon dioxide (CO2), with substantial implications for resource utilization and sustainable development. Herein, a bromine-functionalized lanthanide MOF (Eu-DBT) was synthesized via solvothermal reaction of Eu3+ ions with 2,5-dibromoterephthalic acid (H2DBT), constructing a bifunctional acid–base catalytic system. Eu-DBT exhibits excellent catalytic performance in two key CO2 fixation reactions. It achieves a 98.4% yield and 99.5% selectivity for the cycloaddition of CO2 with propylene oxide, and 99.8% conversion with a 99.4% target yield for N-methylaniline CO2 mediated N-formylation under optimized conditions. Additionally, Eu-DBT demonstrates broad substrate generality and robust recyclability, retaining high activity over five consecutive reaction cycles. Mechanistic investigations reveal that its superior performance originates from the synergistic effect of Eu3+ and −Br acid–base dual active sites, which effectively reduce reaction energy barriers. This work provides a ligand halogenation strategy for rational designing multifunctional Ln-MOFs, highlighting bromine-functionalized Ln-MOFs as efficient heterogeneous catalysts for sustainable CO2 resource utilization.
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INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
·
2026
·
IF 3.9
Hao Dong,Fengsheng Liu,Tao Wang,Yimeng Chen,Junlong Wei,Mengxiang Fang,Kun Yang,Xiang Gao
Solid amine-based adsorption using metal–organic frameworks (MOFs) has shown great potential in direct air capture (DAC) due to its excellent CO2 selectivity and adsorption capacity. Incorporation of amine functional groups into MOFs significantly enhances CO2 uptake, but the adsorption performance is highly dependent on the activity of surface amine groups, which are prone to irreversible degradation. This study systematically investigates the degradation behavior and structural evolution of MOF-based solid amine adsorbents under complex environmental conditions, elucidating the degradation products and underlying mechanisms. Thermal degradation leads to reduced crystallinity and pore structure collapse, while also inducing linear condensation reactions at amine sites that form urea-linkage fragments, thereby impairing adsorption performance. Oxidative degradation breaks C–N bonds in amine groups, generating carboxylic acids and releasing ammonia, accompanied by framework rearrangement and loss of active sites. A benefit from the topological protection provided by the three-dimensional MOF framework and strong coordination between metal centers and amine groups, which effectively inhibited the degradation behavior of N-(2-aminoethyl) ethanolamine (AEEA) (both thermal degradation and oxidative degradation) is enabling the MOF adsorbent to have better antidegradation performance compared to pure AEEA. After 5 weeks of high-pressure oxidative treatment, the amine utilization remains at 45.83%, representing a 30.9% improvement over AEEA and a 10.97% reduction in performance loss. A coupled reaction model was established to describe the synergistic effects of thermal and oxidative degradation, and a first-order kinetic equation was developed to predict long-term degradation behavior. This study provides both theoretical insight and practical guidance for the long-term stable operation of MOF-based solid amine adsorbents.
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Journal of Environmental Chemical Engineering
·
2026
·Vol. 14
·期 5
·124301
·
IF 7.5
Nan Sun,Hongxia Deng,Niya Ye,Yang Zhang,Yue Zhang
Efficient monitoring and controlling the fluoride content is of paramount significance for human health owing to the double-edged sword characteristic. Herein, a novel dual-functional Ce/Fe bimetallic MOF-derived mesoporous carbon (Ce/Fe@C) is engineered through competitive coordination polymerization and calcination for the selective detection and adsorption of fluoride. Attributed to unique oxygen vacancies, Ce/Fe@C could productively capture fluoride by forming specific Ce/Fe–F and C–F bonds, affording a high adsorption capacity of 146.57 mg g −1 . Harnessing the fluoride complex-mediated blocking of active sites promotes the deterioration of peroxidase-mimicking activity of Ce/Fe@C, facilitating the sensitive colorimetric detection of fluoride with a limit detection of 0.245 μmol L −1 . Most importantly, facile magnetic separation of Ce/Fe@C not only simplifies the operation for fluoride treatment but also improves the detection accuracy via background interference elimination, as well as excellent reusability. As functional nanozyme and adsorbent, Ce/Fe@C is successfully utilized for the specific detection and scavenging of fluoride in various complicated samples. This work furnishes a reliable “two in one” platform for alleviating fluoride contaminant stress and highlights the tremendous prospects of versatile bimetallic MOF-derived carbons for food analysis and environmental remediation.
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COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
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2026
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IF 5.4
Yiting Han,Yueyang Xu,Liming Kong,Guojun Shi,Yongping Zeng
Metal-organic frameworks (MOFs) have garnered significant attention in adsorption desulfurization due to their high density of adsorption sites and permanent porosity. However, despite the abundant adsorption sites in Zr-based MOF-808, its relatively large pore channels and volumes may limit the adsorption efficiency for smaller molecules such as thiophene. Incorporating room-temperature ionic liquids (rILs) into MOF structures offers a promising strategy to address a key limitation of rILs-their high viscosity at ambient conditions, which often restricts mass transfer rates during liquid-liquid extraction. In this study, an IL-modified MOF-808 was synthesized to assess its performance in desulfurization. Characterization results confirmed that the rILs successfully infiltrated the MOF-808 pores without changing its framework integrity. Adsorption properties for thiophene in ILs/MOF-808 composites were investigated through Grand Canonical Monte Carlo (GCMC) simulations alongside experimental adsorption measurements conducted at 298 K. Further Monte Carlo (MC) simulations demonstrated that the presence of ILs enhanced the affinity for thiophene and increased the number of accessible adsorption sites within the composite. The adsorption capacity of ILs/MOF-808–20 remained stable over four adsorption-regeneration cycles using n-octane as the solvent, providing a potentially feasible solution for deep desulfurization.
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