ANALYTICAL AND BIOANALYTICAL CHEMISTRY
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2026
·
IF 3.8
Bo Chunmiao,Han Xiaoyu,Tang Xiaofan,Zhao Weilong
Efficient adsorption and sensitive detection of baicalin (BAI) are essential for maximizing its medical value. In this work, a rhodamine B (Rb)-encapsulated metal–organic framework (MOF)@boric acid–modified covalent organic framework (COF) composite material (Rb-MOF@COF-BA) was designed for high-capacity adsorption and high-sensitivity detection of BAI. Specifically, the Zr-based MOF of UiO-66 was prepared with Zr 4+ and 2-aminoterephthalic acid, during which Rb was encapsulated, resulting in strong red fluorescence. The –NH 2 group on the Rb-MOF surface then reacted with 2,5-dimethoxyterephthalaldehyde and coupled with the ligand 1,3,5-tris(4-aminophenyl)benzene to integrate the COF. Subsequently, to enhance the recognition of cis -diol-containing BAI through boron affinity, Rb-MOF@COF was functionalized with (4-ethynylphenyl)boronic acid via aza-Diels–Alder cyclization, obtaining the Rb-MOF@COF-BA composite with blue fluorescence. For BAI, Rb-MOF@COF-BA demonstrated a high adsorption capacity of 114.2 mg g −1 and reached equilibrium within 200 min. Additionally, the Rb-MOF@COF-BA composite displayed dual emissions at 440 and 580 nm, enabling its use as a ratiometric fluorescence sensor for BAI detection, accompanied by a visible blue-to-red spectral transition. The resulting radiometric fluorescence method demonstrated linear ranges of 0.2−3.0 and 3.0−20.0 μmol L −1 with a low detection limit of 0.0173 μmol L −1 for BAI. This analytical method was employed to identify and quantify BAI in Yinhuang oral solution, yielding favorable results that confirmed the potential of this ratiometric detection for practical applications. Graphical
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PubMed
高影响因子
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
·
2023
·
IF 8.7
Yingang Gui,Shasha He,Yunfeng Wang,Jiacheng Yang
This study proposed a self-powered bio-sensing positioning system driven by MOF-derived porous Ni/C material-based hybrid nanogenerator. The porous structure of Ni/C nanoparticles provides a high specific surface area, increases the capacitance of the nano-composite, and traps more charges due to the formation of micro-capacitors, which boost the performance of TENGs. The as-fabricated enhanced TENG achieved a peak voltage of 820 V and a power density of 10.1 W/m 2 . An optimal bilayer structure was determined through experiments and simulations to obtain the maximum output performance. Flexible TENGs are placed on various parts of the body to achieve biomechanical energy harvesting and motion monitoring, and provide power sources for small electronics. By combining with electromagnetic generator (EMG), a wearable self-powered positioning system is constructed. This work provides a new idea to enhance the output of TENG, and broadens the application of TENG in self-powered wearable systems.
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CHEMICAL ENGINEERING JOURNAL
·
2026
·
IF 13.2
Zhuo Liu,He Lv,Mengli Yan,Shuang Li,Jiahui Fan,Yan Xu,Huanyu Cheng
Metal organic frameworks (MOFs) with a two-dimensional (2D) morphology exhibit more accessible active sites and efficient charge transfer for enhanced sensing performance. Herein, this work introduces a top-down dihydrogen phosphate (H 2 PO 4 − ) anion coordination blocking strategy to achieve dimensionality reduction of three-dimensional (3D) rigid MOFs. The reported strategy involves the substitution of partial ligands by H 2 PO 4 − anions in the 3D Cu-BTC (3DCuM) framework to form an axial Cu-O-P chemical bond and an intramolecular hydrogen bond within Cu 2 (COO) 4 − units, triggering a structural dimensional transition to 2D Cu-BTC nanoflakes (2DCuM) for the first time. Benefiting from the optimized electronic structure, a narrower bandgap, and shorter 2D in-plane charge transfer distance, the 2DCuM-4:1 sensor obtained from a 4:1 M ratio of pristine 3D Cu-BTC (3DCuM) to H 2 PO 4 − showcases excellent acetone sensing performance with good sensitivity, rapid response, and full recoverability at low temperature. Notably, the acetone sensor also exhibits excellent humidity resistance (i.e., only 3.6 % decrease with the increasing relative humidity from 25 % to 85 %) and long-term stability over 20 weeks, which is attributed to the occupancy effect of H 2 PO 4 − ions to effectively prevent water from coordinating with the open Cu sites. The current work provides a new strategy for achieving dimensionality reduction of rigid 3D MOFs, unleashing the potential to design different morphologies in MOF-based functional materials and enhance sensing performance parameters.
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高影响因子
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
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2026
·
IF 9.2
Zhenzhen Hui,Yiyao Song,Chensong Zhang,Xuzhong Zuo,Yanping Wang,Xiangju Ye,Jing Tang,Xiang Ke,Xuchun Wang,Lin Guo,You Yin,Zirong Li,Jie Yang
The metal-organic frameworks (MOFs) class of electrocatalysts is characterized by adjustable pore structure, design diversity, and homogeneous distribution of active metal sites. Due to the low conductivity of MOF class materials and high diffusion resistance in bulk crystalline MOFs, the transition metal nitride materials have the merits of outstanding conductivity, strong chemical stability, and high electrocatalytic activity, which can be used as a suitable to-site support material to grow the MOFs materials. Therefore, in this thesis, a MOF material for electrocatalysis was grown on transition metal nitride-like materials by optimizing the composition and constructing a reasonable structure. This research introduces an innovative design methodology for the fabrication of non-precious metal-based catalysts. These catalysts are characterized by their cost-effectiveness, high catalytic activity, and robust stability, thereby offering a promising alternative to traditional precious metal catalysts. The overpotential of the optimized NiFe-MOF@NiNCo 3 /NF sample is as low as 260 mV under a current density of 100 mA cm −2 . The NiFe-MOF@NiNCo 3 /NF||NiNCo 3 /NF alkaline electrolytic cell stands out for its low operating voltage of 1.66 V and high durability, maintaining stable performance even at a current density of 100 mA cm −2 over multiple cycles.
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高影响因子
CHEMICAL ENGINEERING SCIENCE
·
2026
·
IF 5.1
Xiaolei Zhang,Nan Gao,Zhen Li,Zong Tan,Shuqin Liang,Zhongmin Liu,Dongjun Lv,Fan Yang,Dongmei Xu,Peng Du,Jinyang Li,Jiahao Wang
Polyethylene (PE) microplastics are chemically inert, environmentally persistent, and difficult to remove or oxidize using conventional separation-based treatment processes. Here, we report an in situ capture–electro-Fenton degradation strategy that integrates microplastic enrichment and oxidative conversion within a dual-function ferrocene-based MOF electrode (ER-Fc-MOF@NiF). The electrode provides abundant interfacial binding sites that locally accumulate PE on the catalytic surface, enhancing the contact efficiency between reactive oxygen species and polymer chains during electro-Fenton operation. The electrode exhibits a high adsorption capacity of 150.8 mg·g −1 toward PE microplastics and enables progressive oxidative fragmentation of the polymer within 36 h under electro-Fenton conditions. Structural and spectroscopic analyses (SEM, XPS, TOC, and EDS) reveal the formation of oxygen-containing functionalities and surface erosion of the polymer. Electron paramagnetic resonance (EPR) measurements confirm the generation of •OH and 1 O 2 , indicating a cooperative radical/non-radical oxidation pathway. By integrating capture and oxidation within a single electrode, the system forms an interfacial capture–conversion microzone where microplastics are retained and subsequently undergo interfacial oxidative transformation and fragmentation. The ER-Fc-MOF@NiF electrode maintains stable adsorption performance across a wide pH range, tolerates common inorganic ions, and remains effective in real water matrices. This work provides a compact capture-to-degradation platform with practical potential for microplastic remediation and offers a transferable strategy for the treatment of other polymeric micropollutants.
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高影响因子
APPLIED CATALYSIS B-ENVIRONMENTAL
·
2026
·
IF 19.7
Wenda Chen,Shenghua Ye,Wei Zeng,Xin Wang,Yixiao Zou,Peng Cui,Kang Liao,Lirong Zheng,Yantong Xu,Qianling Zhang,Xiaopeng Han,Wenbin Hu
1,4-benzenedicarboxylate-modified Cu nanosheets were synthesized via 2D Cu-BDC MOF precursor and template. • Carboxyl groups on Cu surface enhance H 2 O accumulation for sustained proton supply. • Carboxylate-mediated proton transfer accelerates *NO → *NOH. Tailoring the interfacial microenvironment is essential for regulating proton-coupled electron transfer (PCET) dynamics, key processes governing the electrochemical nitrate reduction reaction (NO 3 − RR) for efficient ammonia (NH 3 ) synthesis. Herein, we design a metal-organic framework-derived Cu nanosheet architecture modified with 1,4-benzenedicarboxylate (BDC@Cu NSs), where BDC molecules serve as built-in “proton pumps” to boost electrocatalytic NO 3 − RR with higher NH 3 production. In situ spectroscopic characterizations, kinetic isotope effect measurements and theoretical calculations demonstrate that the carboxylate groups (−COO − ) of BDC 2− adsorbed on the Cu interface construct an enhanced interfacial hydrogen-bond network for facilitating H 2 O accumulation and dissociation, and capture and transfer protons to nitrogen-containing intermediates via a PCET pathway, which drastically lowers the energy barrier of the potential-determining step (*NO hydrogenation to *NOH), endowing BDC@Cu NSs with a high NH 3 yield, superior Faradaic efficiency, and outstanding operational durability. This study presents a design strategy for engineering electrocatalytic interfacial microenvironments and provides fundamental insight into proton transport within hydrogen-bonded networks at the interface. Download: Download high-res image (136KB) Download: Download full-size image Constructing built-in proton pumps on MOF-derived Cu nanosheets via surface-anchored carboxylate groups enables efficient electrocatalytic nitrate reduction. These groups establish an enhanced interfacial hydrogen-bond network, facilitating H 2 O dissociation and selective proton transfer to *NO intermediates, thereby drastically lowers the energy barrier for ammonia synthesis.
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高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2026
·
IF 12.5
Chaoying Zhang,Qian Jia,Guoqiang Li,Feng Li,Haitao Cui,Congming Li,Lei Li
An ultramicroporous variant of Mg-MOF-74 is synthesized through a mixed-linker strategy incorporating ethylenediaminetetraacetic acid (EDTA) as exotic linker. • An exclusive H 2 O adsorption site is created based on the uncoordinated oxygen atoms of EDTA. • The hydrogen-bonding network within EDTA-modified frameworks enhances CO 2 adsorption by 14.3 % via the formation of carbonates. • Incorporating EDTA molecules increases the CO 2 /N 2 selectivity by a factor of 2.28 compared to pristine Mg-MOF-74. • The EDTA-modified Mg-MOF-74 outperforms the pristine Mg-MOF-74 with a two-fold enhancement in CO 2 uptake under humid conditions. Mg-MOF-74 ([Mg 2 (DOBDC)]) represents a high-performance solid adsorbent for carbon capture, however, its CO 2 uptake decreases significantly under humid flue gas conditions due to competitive adsorption between H 2 O and CO 2 molecules. Herein, a mixed-linker modification strategy is employed by integrating ethylenediaminetetraacetic acid (EDTA) into the Mg-MOF-74 framework. This approach preserves the original one-dimensional pore structure while altering the coordination environment of Mg 2+ sites, reducing their coordination number to five. The resulting structure with uncoordinated oxygen atoms from EDTA serves as exclusive adsorption centers for H 2 O thereby protecting the CO 2 adsorption capacity. The optimized MOFs exhibits a high CO 2 adsorption capacity (6.4 mmol/g, at 1 bar) and outstanding CO 2 /N 2 selectivity (346). In humid CO 2 /N 2 (15:85, v:v, at 314 K, RH% = 86%) breakthrough experiment, the EDTA-modified frameworks maintain stable CO 2 uptake (3.92 mmol/g), consistent with dry performance, whereas the pristine Mg-MOF-74 shows a great reduction (2 mmol/g). In-situ FTIR further reveals that the incorporation of EDTA facilitates the formation of hydrogen bonding and carbonate species, synergistically enhancing the moisture resistance of MOF materials. Moreover, the modified material retains stable breakthrough times over six consecutive adsorption-desorption cycles under high-humidity conditions, demonstrating its great potential for scalable industrial carbon capture applications.
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高影响因子
NEW JOURNAL OF CHEMISTRY
·
2026
·
IF 2.6
Jingliang Wang,Xiaoyu Cheng,Dechao Chen,Jiaqi Yu,Zailai Xie,Changsheng Cao
The development of high-performance cathode materials is crucial yet highly challenging for aqueous alkaline zinc batteries (AZBs). Herein, hollow multi-shell NiCo2O4 spheres (NiCo2O4-HMSs) with three to four interconnected shells were prepared through controllable thermal treatment of a metal–organic framework (MOF) precursor. Benefiting from their high specific surface area and unique hollow multi-shell architecture, these nanostructured oxides facilitate efficient electrolyte penetration and rapid ion/electron transport, while simultaneously exposing abundant electrochemically active sites, thereby enabling a markedly enhanced capacity. When assembled into a NiCo2O4-HMSs//Zn battery, the cathode delivers a high specific capacity of 152.8 mAh g−1 at 2 A g−1 and outstanding cycling durability, retaining 121.1 mAh g−1 after 500 cycles at 6 A g−1, markedly outperforming its single-shelled NiCo2O4 counterpart. The resulting device further achieves an energy density up to 264.3 Wh kg−1 and a power density up to 24.7 kW kg−1, demonstrating a favorable balance between energy output and rate capability. Electrochemical analyses reveal reduced interfacial resistance and mixed capacitive/diffusion-controlled charge storage with a pronounced surface-controlled contribution at elevated scan rates, consistent with accelerated reaction kinetics enabled by the multi-shell architecture. This work highlights that rational multi-shell structural engineering provides an effective route to improve energy/power characteristics and cycling stability of NiCo2O4-based cathodes for alkaline aqueous Zn batteries.
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高影响因子
JOURNAL OF MEMBRANE SCIENCE
·
2026
·
IF 8.8
Zijun Chen,Chenyu Wang,Yongyu Wei,Feifan Yang,Yuanhang Jin,Yuyang Miao,Doudou Dong,Haipeng Zhu,Gongping Liu,Wanqin Jin
Efficient separation of aromatic/aliphatic hydrocarbon mixture represents a critical and challenging task in refinery and petrochemical industries. To date, the development of aromatic-selective membranes with superior separation efficiency has attracted increasing attention. In this work, we selected M-MOF-74 with different metal centers (M = Mn, Mg, Co) to incorporate into chitosan-polyvinyl pyrrolidone (CS-PVP) blends to fabricate aromatic-selective mixed-matrix membrane (MMM) for the improvement of aromatic/aliphatic separation performance. Among them, the Mn-MOF-74/CS-PVP MMMs displayed dramatically enhanced pervaporation performance toward benzene/cyclohexane separation, owing to the strong preferential adsorption affinity between Mn-MOF-74/CS-PVP membrane and benzene molecules via π-π interactions. Under the optimal conditions, the cross-linked membrane achieved a total flux of 129 ± 2 g m −2 h −1 and a separation factor of 15.4 ± 0.1 for separating a 50 wt% benzene/cyclohexane azeotrope at 50 °C, outperforming most state-of-the-art membranes. Long-term stability tests confirmed that the MOF-74/CS-PVP membrane possesses promising practical potential for benzene/cyclohexane azeotropic separation.
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高影响因子
Polymers
·
2026
·Vol. 18
·期 10
·1186
·
IF 5.8
Meng Sun,Meiyan Wu,Ping Wang,Bing Li,Guang Yu,Haishun Du,Tao Lou,Bin Li
Minimally invasive thread lifting has emerged as an effective strategy for soft tissue repositioning and facial rejuvenation; however, currently used absorbable threads generally lack intrinsic antimicrobial functionality, which may increase the risk of postoperative infection. Here, we report a biodegradable antibacterial lifting thread based on a nanocellulose/MOF composite system. The thread was fabricated via a green wet-spinning strategy using carboxymethylated cellulose nanofibrils (CCNF, prepared with cellulose derived fromAstragalusresidue) and sodium alginate (SA) as the structural matrix, while tetracycline hydrochloride-loaded ZIF-8 nanoparticles were incorporated to provide sustained antibacterial activity. The resulting antibacterial CCNF/SA thread (AB-CCNF/SA) exhibited a uniform morphology and a tensile strength of 80 MPa. The porous ZIF-8 carriers enabled efficient drug loading and controlled release, providing effective antibacterial activity againstStaphylococcus aureusandEscherichia coli. Meanwhile, the composite threads showed favorable biodegradability, with approximately 45% degradation within 56 days, together with excellent cytocompatibility as demonstrated by fibroblast viability above 90%. In vivo studies further revealed inflammatory responses comparable to those of commercial collagen threads, confirming the good biocompatibility of the system. Overall, this work establishes a strategy for integrating nanocellulose structural materials with MOF-enabled antibacterial drug delivery, providing a multifunctional platform that combines mechanical support, biodegradability, and sustained antibacterial activity for minimally invasive soft tissue lifting and related biomedical implant applications.
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PubMed
高影响因子
Advanced Healthcare Materials
·
2026
·
IF 11
Bei Liu,Jiayi Zhang,Wenfei Xu,Yuechen Liu,Nawei Wu,Hongshang Peng,Hongxia Li,Zhaogang Sun,Hongqian Chu
Combinational photodynamic and immune checkpoint blockade (PDT/ICB) therapy is a promising approach for oncotherapy. However, the tumor microenvironment (TME) poses multiple biological barriers that can critically undermine the treatment outcomes of PDT/ICB. To this end, a cascade-amplified photodynamic immunotherapy nanoplatform based on the core-shell structured metal-organic frameworks (MOFs) was elaborately constructed. This nanoplatform, termed PMA, was constructed by growing manganese oxide (MnO 2 ) layer on a porphyrinic MOF core, followed by conjugation with PD-L1-targeting aptamers. Upon reaching the tumor, the MnO 2 shell scavenges glutathione (GSH) while concurrently releasing O 2 for hypoxia alleviation and Mn 2+ ions as STING agonists. Simultaneously, MOF-based core was directly self-assembled from porphyrin photosensitizers (PSs) and metal clusters, resulting in high PSs loading capacity without self-quenching. More importantly, the liberated PD-L1 aptamers block immune checkpoint interactions, reversing local immunosuppression and activating cytotoxic T lymphocytes. Together, this multimodal strategy evokes robust antitumor immunity, offering a powerful and translatable approach to expand the scope of cancer immunotherapy.
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高影响因子
MOLECULES
·
2026
·Vol. 31
·期 17
·3096
·
IF 5.1
Haixia Wu,Dianheng Yu,Jinliang Hu,Fang Wang,Songtao Zhang,Kailu Guo,Huan Pang
Metal–organic frameworks (MOFs) have significant potential in electrochemical sensors, but the guest molecules and residual solvents in the pores often block the active sites and limit the reaction kinetics. One-dimensional nanostructures can provide direct conduction pathways and shorten ion diffusion distances, thereby enhancing electron transport and electrode contact. Meanwhile, fluorine-incorporated MOF materials leverage the high electronegativity of fluorine to substitute oxygen, suppress oxidation to widen the voltage window, and improve stability through enhanced hydrophobicity. In this work, 4-fluorosalicylic acid (4FSA) was used as the ligand and benzimidazole (Bim) was introduced to adjust the coordination environment, and one-dimensional Bim4FSA-MOF nanorods were successfully constructed. While the guest molecules were largely removed, the nickel sites were thereby activated and the pore size was enlarged. Due to the synergistic effect of one-dimensional nanostructure-promoted electron transport and the Ni(OH)2/NiOOH dynamic active center, the B-250 composite exhibited excellent performance in a glucose electrochemical sensor. The optimized sensor delivered a detection limit of 0.022 μM and a detection time of 0.9 s, along with a sensitivity value of 2986.45 μA mM−1cm−2, which provides a new strategy for the design of efficient MOF-based electrochemical sensor interface.
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