PETROLEUM CHEMISTRY
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2025
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IF 1.1
Jiang Ning,Mao Min,Wang Qingyin,Wang Gongying
MOF-5 is a classic metal-organic framework (MOF) crystal. However, synthesis of high-quality crystals usually requires an expensive N , N ′-diethylformamide (DEF) solvent, and a high molar ratio of a raw material (Zn 2+ : BDC 2– = 3‒5 : 1). More critically, its extreme instability against water vapor has caused researchers to do not use it. In this study, we achieved some important breakthroughs by using inexpensive N , N ′-dimethylformamide (DMF) solvent and meticulously optimizing synthesis parameters combined with a specialized micro-open solvothermal method. With a reduced molar ratio of a raw material (1.47 : 1), we successfully synthesized crystals exhibiting excellent phase structure and morphology, high surface area, out standing water vapor stability, and strong CO 2 adsorption capacity. The results show that the DEF replacement with DMF and reduction of the raw material molar ratio from 3 : 1 to 1.47 : 1 provides an increase of the BET surface area from ~935 to 2388 m 2 /g, and an improvement of the CO 2 adsorption capacity from ~0.8 to 2.5 mmol/g (298 K, 100 kPa). Breakthrough curves reveal that in simulated separation experiments for the flue gas and natural gas containing low CO 2 concentrations (10‒20%), the dynamic separation selectivity for CO 2 /N 2 reaches 22, while that for CO 2 /CH 4 remains stable at 4. Notably, the selectivity remained nearly unaffected by the pressure variation; this phenomenon is promising for enhancing the capture and purification of a low-concentration CO 2 from the flue gas and natural gas. It is important that the improved MOF-5 crystals prepared under optimal synthetic conditions maintained the stable phase structure and morphology even after 14-day exposure to humid air (relative humidity >70%), successfully overcoming the challenge posed by a water vapor.
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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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CHEMICAL PAPERS
·
2026
·
IF 2.7
Gao Jun-Tao,Qi Wen-Da,Dou Xi-Meng,Liu Zheng-Chun,Li Na,Cao Feng
Water scarcity and water pollution are two major environmental issues facing all over the world. Membrane technology is an efficient and advanced wastewater treatment technology that has unique advantages in removing particulate matter, organic matter, microorganisms, and other pollutants. The present work report a high performance nanofiltration membrane for recycling and utilization of energy resources. The membrane was prepared by co-deposition dopamine and PEI in the PES based membrane as the intermediate layer, then spraying with different content of MOF-801. Subsequently, interfacial polymerization was carried out through piperazine and 1,3,5-benzenetricarbonyl trichloride. The obtained membrane was evaluated by testing the separation performance of Na 2 SO 4 , MgSO 4 , MgCl 2 and NaCl aqueous solution. FTIR, CA, XPS, SEM, AFM were carried out to analysis the physical and chemical structures of membranes. The effects of dopamine co deposition, nanomaterial content, salt type, stability and anti-pollution were investigated. Results shown that the membrane exhibits excellent water flux and rejection after modified with MOF-801. The addition of 2% nanofiller could achieve the optimum performance. The water flux for Na 2 SO 4 , MgSO 4 , MgCl 2 and NaCl were 21.19 L m −2 h −1 bar −1 , 21.11 L m −2 h −1 bar −1 , 22.18 L m −2 h −1 bar −1 , 25.74 L m −2 h −1 bar −1 , respectively. The membrane present great stability for the continuous test of 70 h. Additionally, the performance of membrane maintain a high water flux after three rounds of pollution and cleaning. This is the first time that MOF-801 has been used as an intermediate layer to prepare nanofiltration membranes, which providing new route for the preparation of high performance membrane.
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LANGMUIR
·
2026
·
IF 4.4
Yong Li,He Wang,Tianhu Long,Jing Liu,Yulun Nie,Chao Yang,Jianbo Shi
Accurate and sensitive detection of pesticide residues is crucial for environmental safety and human health. Herein, a self-powered metal–organic framework nanozyme-based immunoassay was developed for selective and sensitive detection of isoprocarb by encapsulating calcium peroxide and heme into a Zn-MOF to construct the CaO2/heme@Zn-MOF composite. The prepared nanozyme exhibits intrinsic peroxidase-like activity and enables in situ H2O2 generation under acidic conditions, effectively eliminating the need for external oxidants. By coupling antibody–antigen specific recognition with catalytic signal amplification of CaO2/heme@Zn-MOF, a competitive nanozyme-linked immunosorbent assay was established for selective detection of isoprocarb. The fluorescence signal originating from o-phenylenediamine oxidation gradually decreases with an increase in isoprocarb concentration, allowing quantitative analysis with a detection limit of 0.017 μM. The entire competitive immunoassay can be completed within an optimal detection time of 90 min. Furthermore, the proposed method demonstrates excellent practical reliability and anti-interference capability in real water and agricultural products, achieving quantitative recovery rates ranging from 92.85% to 107.14% with relative standard deviations of less than 5.91%. Furthermore, a portable immunomagnetic bead with paper devices was fabricated for on-site analysis. This work provides a general strategy for integrating self-powered nanozymes with immunoassays, thereby expanding their potential for portable environmental monitoring.
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高影响因子
MICROCHEMICAL JOURNAL
·
2026
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IF 5.2
Mengyao Ma,Mengmeng Hu,Yifan Zhu,Renjie Wang,Tongliang Wang,Jinnan Gan,Runjing Cai,Nana Dai,Ting Gao,Qiaohuan Cheng,Qianqian Chen,Huijuan Ran,Fei Peng,Qingsong Zhu
In-situ growth of Ti-MOF@rGO improves dispersion, reduces agglomeration, and facilitates electron transport. • 0.3–400 μM linear range, 0.114 μM LOD (S/N=3), selective vs UA/AA, stable/reproducible. • Synergistic Ti-MOF@rGO boosts DA adsorption and electron transfer via 2e - /2H + redox. Electrochemical detection of dopamine (DA) is critically important for the diagnosis and monitoring of neurological disorders. In this study, we present a novel composite material, Ti-MOF@rGO, synthesized in-situ through the integration of titanium-based metal-organic frameworks (Ti-MOFs) with reduced graphene oxide (rGO). This hybrid material effectively combines the abundant redox-active sites of Ti-MOF with the excellent electrical conductivity and large specific surface area of rGO, thereby facilitating efficient charge transfer and enhanced DA adsorption. The Ti-MOF@10%rGO-modified glassy carbon electrode demonstrated outstanding electrocatalytic performance for DA oxidation, exhibiting a wide linear detection range of 0.3–400 μM and a low detection limit of 0.114 μM (S/N = 3). The sensor exhibited high selectivity against common interferents such as uric acid and ascorbic acid, along with excellent repeatability, reproducibility, and cycling stability. This work presents a promising strategy for the rational design of MOF-based composites and offers a robust platform for ultrasensitive and selective electrochemical biosensing applications.
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RARE METALS
·
2026
·Vol. 45
·期 8
·e70443
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IF 12.1
Weinan Yao,Wenzhuo Sun,Mengjiao Wu,Nana Li,Wenting Li,Xiaotian Guo,Bin He,Huan Pang
en This link goes to a English section zh This link goes to a Chinese section A facile coprecipitation-pyrolysis strategy was employed to fabricate Cu/Co nanoparticles (NPs) embedded in nitrogen-doped carbon matrices (Cu/Co@N-C) through the carbonization of CuCo-MOF precursors. Moreover, monometallic counterparts of Cu@N-C and Co@N-C were also prepared via carbonization of bimetallic CuZn-MOF and CoZn-MOF, respectively. Electrochemical tests confirm that Cu acts as the key active center for nitrite oxidation. By adjusting the Cu/Co molar ratios, a series of cubic Cu/Co@N-C composites with tunable sizes of 200–500 nm were achieved. The synergistic interaction between metallic Cu/Co NPs and the conductive N-C framework enhances catalytic activity and reduces overpotential compared to the monometallic Cu counterpart. The optimized Cu/Co@N-C/glass carbon electrode (GCE) sensor delivered a superior sensitivity as high as 0.461 μA μM −1 cm −2 and wide detection range of 2–10000 μM. The Cu/Co@N-C/GCE sensor also demonstrated superior selectivity, long-term stability of 92.5% retention after 21 days, and reproducibility. This work establishes a versatile approach for engineering various MOF-based catalysts, demonstrating promising potential for applications in environmental monitoring and food safety analysis. 摘要 en This link goes to a English section zh This link goes to a Chinese section 采用一种简便的共沉淀–热解策略 , 以 CuCo-MOF 前驱体为碳源进行碳化 , 成功制备了氮掺杂碳基质负载的 CuCo 双金属纳米颗粒复合材料(Cu/Co@N-C)。此外 , 还分别基于双金属CuZn- MOF和CoZn-MOF碳化制备了Cu@N-C和Co@N-C。电化学测试表明Cu是亚硝酸盐氧化的关键活性中心。通过调控 Cu/Co 摩尔比 , 获得了粒径可调、尺寸范围为 200–500 nm 的立方体 Cu/Co@N-C 复合材料。与单金属Cu@N-C相比 , 金属Cu/Co NPs与导电N-C框架之间的协同作用增强了催化活性并降低了过电位。优化后的 Cu/Co@N-C/玻碳电极(GCE) 传感器表现出优异的电化学传感性能 , 其灵敏度高达 0.461 μA μM −1 cm −2 , 检测范围宽达 2–10000 μM。Cu/Co@N-C/GCE 传感器还展现出优异的选择性、良好的重复性以及长期稳定性 , 在存放21天后仍可保持 92.5% 的电流响应。该工作为构筑各种MOF 基催化材料提供了一种通用策略 , 显示出其在环境监测与食品安全分析领域的广阔应用前景。
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FOOD CHEMISTRY
·
2026
·
IF 10.4
Qingyi Wei,Xiaojian Fei,Hongbin Pu
Allyl isothiocyanate (AITC) was effectively encapsulated within HKUST-1. • HKUST-1@AITC exhibits a humidity-responsive release mechanism. • The vapor released from HKUST-1@AITC inhibits microbial growth. • HKUST-1@AITC significantly prolonged the shelf life of strawberries. Allyl isothiocyanate (AITC), a volatile compound predominantly found in mustard essential oil, has attracted significant attention as a potent natural antimicrobial agent for postharvest preservation of horticultural products. However, its high volatility, hydrophobicity, and pungent odor limit its application. In this study, a water-unstable metal–organic framework, HKUST-1 (MOF-199), was fabricated using a solvothermal method and functioned as a carrier of AITC. AITC was successfully encapsulated into HKUST-1 via impregnation, yielding HKUST-1@AITC with excellent humidity-responsive release behavior. As the relative humidity (RH) increased from 43% to 98%, the cumulative release rate of AITC rose from 41.06% to 54.82%. Moreover, HKUST-1@AITC and vapor-phase diffusion of AITC released from HKUST-1@AITC have shown to exhibit superior antibacterial activity. Application in strawberries showed that HKUST-1@AITC reduced weight loss by 25.05%, alleviated firmness loss by 39.89%, and effectively extended the storage duration to 7 days. Overall, HKUST-1@AITC shows potential use in active packaging to improve preservation of horticultural products.
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高影响因子
MICROCHEMICAL JOURNAL
·
2026
·
IF 5.2
Yu Gan,Wenwen Lai,Mengbo Fan,Zhengchao Duan,Lianzhi Wang
A novel core–shell structured NH 2 -MIL-88(Fe)@TFPT-Tt-COF composite was successfully constructed via an in situ growth strategy, enabling intimate interfacial bonding and synergistic effects between the MOF core and the COF shell. • The composite exhibits dramatically enhanced fluorescence compared to the individual MOF or COF, and acts as a “turn-off” sensor for nitrofurantoin (NFT) with an ultralow detection limit of 0.18 μg·mL −1 based on the inner filter effect. • The sensing platform features rapid response (equilibrium within 1 min), excellent selectivity against common metal ions and antibiotics, and good applicability in real samples with recoveries of 84.3%–107.6% in soil and lake water. • Offers a new strategy for applying MOF@COF heterostructures to the on-site, rapid, and sensitive detection of trace antibiotic residues in complex environmental matrices. A core-shell structured NH 2 -MIL-88(Fe)@TFPT-Tt-COF composite was successfully constructed via an in situ growth strategy, using NH 2 -MIL-88(Fe) as the core and TFPT-Tt-COF as the shell. The structure, morphology, and thermal stability of the composite were systematically characterized by Fourier transform infrared spectroscopy, powder X-ray diffraction, scanning/transmission electron microscopy, thermogravimetric analysis, and nitrogen adsorption–desorption measurements. The results confirmed the intimate interfacial bonding between the MOF core and the COF shell. Compared with the individual components, the composite displayed significantly enhanced fluorescence intensity. A fluorescent sensing platform based on this composite was developed, which enabled highly sensitive and selective detection of nitrofurantoin (NFT). Preliminary mechanistic studies revealed that the quenching effect mainly originated from a photoinduced electron transfer (PET) mechanism. The proposed method was applied to the spike recovery analysis of NFT in real samples such as soil and lake water, yielding recoveries ranging from 84.3% to 107.6%, with a limit of detection as low as 0.18 μg·mL −1 , demonstrating that the sensor possesses satisfactory accuracy and practicality in complex environmental matrices. This work provides a new strategy for the application of MOF/COF composites in the rapid detection of antibiotic residues in the environment. Download: Download high-res image (167KB) Download: Download full-size image
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Molecular Catalysis
·
2026
·
IF 4.3
Xinyu Fu,Yufei Zhang,Yang Xu,Danjun Jin,Jinghuan Chen,Jiade Wang
Amino-ligand-assisted MOF derivation forms hierarchical Pt@CeO 2 microspheres. • -NH 2 groups anchor Pt species, preventing aggregation and maintaining pores. • The catalyst shows exceptional toluene oxidation, achieving a low T 90 of 177 °C. • In situ DRIFTS elucidates a sequential Mars-van Krevelen oxidation pathway. A novel amino-ligand-assisted MOF-derivation strategy was developed to fabricate hierarchically structured Pt@CeO 2 microspheres with highly dispersed Pt species (0.34 wt. %). The -NH 2 functional groups effectively anchored Pt precursors, preventing aggregation and preserving hierarchical porosity during calcination. The resulting catalyst exhibited exceptional toluene oxidation performance, achieving T 50 and T 90 values of 155 and 177 °C, respectively, significantly outperforming conventional impregnation-derived counterparts. Characterization revealed abundant surface oxygen vacancies, enhanced Ce 3+ concentration, and superior low-temperature reducibility due to strong metal-support interaction. In situ DRIFTS analysis confirmed a Mars-van Krevelen mechanism with sequential degradation pathway: toluene → benzyl alcohol → benzaldehyde → benzoate → anhydride → CO 2 and H 2 O. The superior catalytic performance arises from the synergistic effects of the hierarchically oriented mesoporous structure, inherently enlarged specific surface area, and the highly dispersed active Pt species confined within the CeO 2 matrix. This work establishes a versatile platform for designing high-performance catalysts with controlled metal dispersion and hierarchical porosity for VOC abatement and oxidation reactions. Download: Download high-res image (202KB) Download: Download full-size image
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ADVANCED FUNCTIONAL MATERIALS
·
2026
·
IF 19.9
Junhan Li,Chao Zhou,Shujia Wang,Jingwen Xu,Zhida Gao,Yong Zhang,Yan-Yan Song
Metal–organic frameworks (MOFs) offer unique chemical selectivity for surface-enhanced Raman scattering (SERS), yet their intrinsically weak light–matter coupling fundamentally limits sensitivity and has long hindered their practical deployment as plasmon-free SERS substrates. Here, we report a photonic-crystal strategy that fundamentally amplifies charge-transfer (CT)-mediated SERS in MOFs by exploiting slow photons at the photonic stop-band edge. Using UiO-66(Zr) nanocrystals as the model MOF, the assembled ordered MOF photonic crystals (PhCs) with tunable Bragg reflection are precisely aligned to the excitation wavelength. The resulting slow-light effect dramatically increases photon residence time and local electromagnetic field within the MOF pore domains. This slow-photon confinement synergistically couples with CT processes between MOFs and analyte molecules, resulting in a tenfold enhancement in SERS intensity compared with disordered MOF assemblies and an enhancement factor up to 5.15 × 10 8 without any plasmonic components. By leveraging the intrinsic band-structure tunability of MOFs, selective CT-SERS is further demonstrated across different molecular systems and environments. The optimized MOF-PhCs substrate enables ppb-level detection and multicomponent discrimination of lung-cancer-associated volatile organic compounds, which are digitally encoded into machine-readable Raman barcodes. This work establishes slow-photon-regulated MOF photonic crystals as a versatile platform for plasmon-free, chemically programmable, and functionally integrated SERS sensing.
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ELECTROCHIMICA ACTA
·
2026
·
IF 5.8
Xiaoxi Li,Xianyi Gou,Boon Tong Goh,Hong Du
Co-O-Fe electronic modulation lowers OER overpotential to 169 mV at 10 mA cm −2 . • Rapid interfacial charge transfer yields a low Tafel slope of 106.4 mV dec − ¹ mV dec −1 . • Fe-to-Co electron transfer optimizes the D-band center for OER intermediates. • Heterointerface prevents MOF aggregation and exposes abundant active sites. Overcoming the sluggish kinetics of the oxygen evolution reaction (OER) remains a primary bottleneck in advancing sustainable hydrogen generation technologies. Herein, a dual-metal-organic-framework (dual-MOF) heterostructure, ZnCo-ZIF@MIL-100 (denoted as ZM-3), was constructed via a one-step hydrothermal method, where MIL-100 frameworks were epitaxially grown on orthododecahedral ZnCo-ZIF templates. This core-shell heterostructure inherits the structural merits of both MOF phases, achieving 10 mA cm − ² at an overpotential of 169 mV with a Tafel slope of 106.4 mV dec − ¹ in 1.0 M KOH. Comprehensive characterisation (XRD, SEM/TEM, XPS, etc.) and electrochemical analysis verify that heterostructure formation triggers notable electron redistribution from Fe to Co centres, optimises interfacial charge transfer and boosts accessible catalytic sites. DFT calculations further confirm that interfacial Co-O-Fe bridge sites tune the adsorption energetics of oxygenated intermediates, reducing the energy barrier of the potential-determining step. This work offers an interfacial regulation strategy for developing advanced MOF-based oxygen evolution electrocatalysts. ZM-3 exhibits a low overpotential, a small Tafel slope (106.4 mV dec −1 ) and long-term stability for OER. Download: Download high-res image (202KB) Download: Download full-size image
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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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