INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
·
2026
·
IF 8.7
Wei-jia Li,Zhi-bo Zhang,Wan-jin Yan,Zhi Chen,Cong-ming Tang,Li Chang
Adsorption technology is essential for water remediation and resource recovery to reduce environmental pollution. Although Metal-organic frameworks (MOFs) exhibit outstanding adsorption capabilities, their high preparation cost hinders their wide application. Alternatively, chitosan (CS) hydrogels offer wastewater treatment at an affordable cost. Herein, polyethyleneimine-modified CS hydrogel coated with MOF (Ce-BTC/CS-PEI) was prepared as a high-capacity sorbent for methyl orange (MO) sequestration. A comprehensive characterization of the Ce-BTC/CS-PEI composite was carried out, involving morphological and elemental analysis (SEM-EDS), crystal phase identification (XRD), surface area and porosity measurements (BET), surface charge evaluation (zeta potential), molecular structure determination (FTIR), and surface chemical state analysis (XPS). The increased interfacial contact area and the positively charged zeta potential of Ce-BTC/CS-PEI enabled efficient adsorption of MO in MO/methylene blue mixtures. The experimental data demonstrated strong agreement with the Langmuir equilibrium isotherm and second-order rate equations. Ce-BTC/CS-PEI demonstrated exceptional uptake performance, reaching 819.67 mg·g −1 after 18 h. Thermodynamic analysis showed that adsorption was a natural exothermic procedure. After four cycles, the material retained 70% of its adsorption efficiency. Therefore, Ce-BTC/CS-PEI exhibits excellent capability as an excellent, ecologically friendly, and inexpensive adsorbent for selective MO removal.
✓ 已验证
产品关联
DOI
PubMed
高影响因子
ELECTROCHIMICA ACTA
·
2026
·
IF 5.8
Senyang Song,Fangfang Shang,Mengwei Yin,Qianqian Wang,Yi Liu,Ran Bi,Xiaoyan Ma
Gallic acid (GA) chelates with exposed metal active sites of Ni/Co-DABD MOF, effectively protecting metal ions and elevating MOF coordination stability. • The GA-modified Ni/Co-DABD MOF@NH₂-MXene composite electrode delivers a high specific capacitance of 2044 F g -1 at 1 A g -1 with superior rate capability and cycling durability. • GA modification strengthens the interfacial synergy between MOF and NH₂-MXene, significantly boosting charge transfer efficiency and structural stability of the composite. The limited active sites and poor electrochemical structural stability of metal-organic frameworks (MOF) severely limit their application in electrochemical energy storage. In this study, we used the acid properties of gallic acid (GA) as an etching agent to etch MOF surface active sites. Subsequently, the protonated GA is further chelated with the exposed metal active site, which can effectively protect the metal ions. At the same time, GA provides a large number of phenolic hydroxyl groups, which greatly improves the coordination stability of MOF. A new MOF@MXene composite electrode material was obtained by solvothermal synthesis of GA-modified MOF and aminated MXene. The electrochemical test results show that the new MOF@MXene composite electrode material synthesized by this scheme has high specific capacitance and high rate stability. The functional modification of MOF by GA greatly improves the synergistic binding performance between MOF and MXene, and thus significantly improves the electrochemical stability of composite electrode materials. The mechanism of the electrochemical reaction was investigated by in-situ X-ray diffraction and theoretical calculation. In this paper, the functional mechanism of polyphenols on MOF is described, which provides a new idea for the electrochemical application of MOF. The GA-modified Ni/Co-DABD MOF@NH₂-MXene composite electrode delivers a high specific capacitance of 2044 F g -1 at 1 A g -1 with superior rate capability and cycling durability. Download: Download high-res image (296KB) Download: Download full-size image
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF BIOMATERIALS APPLICATIONS
·
2026
·
IF 2.4
Xuejiao Ma,Yunhan Huang,Xinyu Wang,Jingrui Chang,Xiangru Xu,Aolin Chen,Bo Lu
Precisely targeting the site of bacterial infection while reducing harm to healthy tissues has turned into the primary aim of bacterial infection treatment. Based on this background, an acidity-triggered aggregation nanomaterial Cu2+/ZIF-8@PDA-GCS (CZPG) based on bimetallic doped metal-organic frameworks was designed. The zinc-based metal-organic framework doped with Cu2+, namely Cu2+/ZIF-8 (CZ), was first synthesized, followed by modification with polydopamine (PDA) and glycol chitosan (GCS) to endow the CZ with photothermal properties and pH-sensitive charge characteristics, respectively. Under normal physiological conditions, the potential value of CZPG is approximately neutral, and it shows poor affinity to normal tissue cells, but the surface potential of CZPG flips to positive potential at the site of acidic bacterial infection. This allows CZPG to aggregate and adhere on the surface of negatively charged bacteria to ensure the spatial accuracy of CDT/PTT and thus enhance the antibacterial effect.
✓ 已验证
DOI
PubMed
高影响因子
ANALYTICAL CHEMISTRY
·
2026
·
IF 7.3
Yong Li,Dongping Fang,Chao Yang,Xike Tian,Yulun Nie,Jianbo Shi
The detection of per- and polyfluoroalkyl substances (PFASs) in the environment is critical due to their adverse health effects, but it remains challenging because of the high cost and technical complexity of standard analytical methods. We developed a series of rare earth-based bimetallic metal–organic frameworks (MOFs) for the sensitive and efficient fluorescence detection of perfluorooctanoic acid (PFOA). By systematically modulating the ligand functional groups with amino (−NH2), hydroxyl (−OH), and fluorine (–F) moieties, the influence of ligand electronegativity on the PFOA recognition performance was evaluated. The experimental results demonstrated that the local electrostatic potential of the MOFs, governed by the functional groups, is a critical factor in determining the PFOA binding affinity and fluorescence sensitivity. Eu/UiO-66-NH2 demonstrated the highest sensitivity and selectivity for rapid fluorescence detection of PFOA, which was due to its strong positive electrostatic potential to facilitate binding via electrostatic attraction and synergistic hydrogen bonding. PFOA concentrations in actual water samples can also be determined by Eu/UiO-66-NH2. These findings provide theoretical insights and experimental support for the functional design of MOF-based sensors, paving the way for the sensitive and selective detection of PFASs.
✓ 已验证
DOI
PubMed
高影响因子
Journal of Environmental Chemical Engineering
·
2026
·Vol. 14
·期 5
·124617
·
IF 7.5
Jinyun Lyu,Yanqian Liu,Chanjuan Liu,Xiaohua Huang
Mixed matrix membranes (MMMs) combine the flexibility of polymer membranes and the excellent gas separation performance of porous materials, and have attracted extensive attention in the field of gas separation in recent years. In this work, a novel fluorinated non-coplanar diamine monomer 2,2-bis(4-(4-amino-2-methoxyphenoxy)phenyl)hexafluoropropane (AMPH) was synthesized through molecular design. Fluorinated non-coplanar copolyimide (AFPI) was fabricated by copolymerizing AMPH with 4,4′-(hexafluoroisopropylidene)diphthalic anhydride (6FDA) and 9,9-bis(4-amino-3-fluorophenyl)fluorene (FFDA). Subsequently, Zr-BTB, a zirconium-based metal-organic framework with high CO 2 affinity and structural stability, was incorporated into the AFPI matrix to fabricate AFPI/Zr-BTB MMMs with different mass loadings. Benefiting from the introduced fluorine groups, AFPI possesses enlarged free volume to accelerate gas permeation. Meanwhile, two-dimensional Zr-BTB facilitates selective CO 2 adsorption over N 2 through thermodynamic adsorption affinity for improved separation performance. Compared with the pristine membrane, the CO 2 and O 2 permeabilities of MMMs increase by 277% and 237% at 15 wt% Zr-BTB loading, and the ideal CO 2 /N 2 and O 2 /N 2 selectivities rise by 45% and 33% at 5 wt% loading. This confirms that embedding Zr-BTB into copolyimide to fabricate MMMs is a promising strategy for developing high-performance gas separation membranes.
✓ 已验证
产品关联
DOI
高影响因子
CARBON
·
2026
·
IF 12.7
Danqiang Huang,Xiangyun Zhang,Xianfei Xie,Yile Dai,Qing Wang,Jianfeng Dai,Zizhou Yuan
CoS/C nanofibers were constructed via MOF-template-assisted interfacial engineering. • Rich CoS/C interfaces and defect sites enable strong broadband microwave attenuation. • Gradient periodic structures further regulate multiband absorption and RCS reduction. Developing fibrous microwave absorbers with balanced electromagnetic attenuation, broad effective absorption bandwidth, and radar-scattering suppression capability is important for electromagnetic protection and stealth-related applications. Herein, CoS/C composite nanofibers were fabricated through electrospinning, surface-confined Co-MOF growth, carbonization, and subsequent sulfidation. The obtained one-dimensional composites consist of a PAN-derived conductive carbon framework decorated with CoS nanoparticles, producing CoS/C heterointerfaces and N/O/S-associated defect sites. By regulating the cobalt precursor content, the dielectric response and impedance matching of the composites were effectively tuned. The optimized CSN-6 sample achieves a minimum reflection loss of −61.33 dB at a thickness of 2.27 mm and an effective absorption bandwidth of 6.32 GHz at 2.31 mm, indicating a favorable balance between dielectric attenuation and impedance matching. Electromagnetic-parameter analysis suggests that the enhanced absorption mainly originates from conduction loss in the interconnected carbon-fiber network, CoS/C interfacial polarization, heteroatom/defect-induced dipolar relaxation, and possible multiple reflection/scattering within the fibrous architecture. CST simulations based on the measured electromagnetic parameters further show that the CSN-6-based absorber achieves a maximum simulated radar cross-section reduction of 17.53 dB relative to a perfect electric conductor at 14.56 GHz. Moreover, a simulation-guided gradient periodic unit cell was proposed as a proof-of-concept structural design, generating multiple absorption responses at 2.57, 7.56, and 13.47 GHz. This work provides an interface-regulation and structure-simulation strategy for developing dielectric-loss-dominated CoS/C fibrous microwave absorbers. Download: Download high-res image (390KB) Download: Download full-size image
✓ 已验证
产品关联
DOI
高影响因子
Micromachines
·
2026
·Vol. 17
·期 2
·247
·
IF 3.5
Xueqi Wang,Yu Hong,Guohui Wu,Yujie Hou,Shengnan Zhao,Binbin Dong,Jianchun Fan,Jun Yu
Gas sensors based on metal oxide semiconductors (MOS) have attracted significant attention in monitoring of methane emission and leakage monitoring due to their high sensitivity, fast response time, simple structure and low cost. However, the high power consumption caused by long-term high-temperature operation of MOS sensors restricts their application in mobile and portable devices. In this study, MOF-derived Co3O4dodecahedrons for low-concentration methane detection at room temperature was prepared using Zeolitic Imidazolate Framework-67 (ZIF-67) as a template and with various calcination temperatures. Among them, the Co3O4-350 calcined at 350 °C exhibited the optimal CH4sensing performance at room temperature, with a response of Rg/Ra= 1.53 to 2000 ppm CH4. This enhanced gas sensing performance is attributed to the highest Co3+proportions and the largest specific surface area in Co3O4-350 nanomaterials, which provided more active sites for gas adsorption and reaction. To address the challenge of slow response speed and irrecoverability during CH4detection at room temperature, the Co3O4nanomaterials were printed onto a micro-heater plate (MHP) to form a MEMS gas sensor. By introducing a pulse heating mode to the MEMS sensor, the response and recovery time were significantly reduced to 26 s and 21 s, respectively. This enhancement improves both the efficiency and reliability of the MEMS gas sensor for early-stage detection of CH4leaks in various industrial applications.
✓ 已验证
产品关联
DOI
PubMed
高影响因子
JOURNAL OF COLLOID AND INTERFACE SCIENCE
·
2026
·
IF 9.6
Yan Ge,Caiyi Fan,Qiyue Zhang,Hui Yang,Saisai Yuan,Bin Xu
In situ synthesis of S-scheme COF/Ce-MOF heterojunctions significantly enhances photocatalytic H 2 O 2 production under ambient conditions. The directional charge separation, precise band alignment, and synergistic dual active sites of the heterojunction enable efficient, stable, and selective H 2 O 2 generation. The CRM (Ce-MOF/COF) heterojunction delivers an H 2 O 2 yield that is 11.2-fold higher than pristine Ce-MOF and 3.1-fold higher than pure COF. Moreover, the CRM heterojunction maintains excellent productivity over a 6-h reaction period. In situ X-ray photoelectron spectroscopy (XPS) and density functional theory (DFT) analyses revealed not only the elemental composition and chemical states at the heterojunction interface but also the interfacial electronic redistribution and band alignment responsible for the enhanced photocatalytic performance. Specifically, the combined experimental and theoretical results confirmed the presence of strong interfacial coupling, the formation of an internal electric field, and the establishment of an S-scheme charge transfer pathway, all of which contribute to efficient charge separation and the preservation of high redox potentials, thereby enabling superior H 2 O 2 generation activity. Overall, this work not only deepens the understanding of MOF-based photocatalysts but also provides valuable design principles for constructing next-generation heterojunction materials with superior efficiency in photocatalytic H 2 O 2 production for environmental remediation.
✓ 已验证
产品关联
DOI
PubMed
高影响因子
JOURNAL OF LUMINESCENCE
·
2026
·
IF 3.8
Kai Jiang,Tianxiang Hang,Ciyang Zhang,Mingzhu Xia,Qingli Hao,Wu Lei
A series of Eu x Tb 1-x L {Eu x Tb 1-x (5-bop) 3 (H 2 O) 4 } ∞ were synthesized using 3,5-dicarboxyphenylboronic acid (5-bop) as ligands via hydrothermal method. 5-bop ligand functions as an effective antenna, harvesting light and transferring the absorbed energy to both Eu 3+ and Tb 3+ . Tb 3+ acts as an intermediary donor, transferring a majority of its energy to the Eu 3+ . Eu 0.1 Tb 0.9 L is the best compound among Eu x Tb 1-x L series which exhibits excellent water stability and higher luminescence intensity compared to single-metal MOFs. It can selectively recognize dopamine hydrochloride (HDA) through fluorescence quenching, featuring fast response speed, high sensitivity, and strong resistance to interference. Additionally, the mechanisms responsible for the fluorescence quenching of Eu x Tb 1-x L include dynamic quenching and UV competitive absorption. This work provides an effective approach for the rapid and convenient detection of HDA in biological fluids.
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF MEMBRANE SCIENCE
·
2026
·
IF 8.8
Siheng Zhao,Xiaoqi Ma,Shengchao Zhao,Kuo Chen,Jianquan Peng,Zilong Huang,Bingbing Yuan,Q. Jason Niu
The construction of functionalized interlayers has been identified as a highly effective strategy for the regulation of interfacial polymerization (IP) and the enhancement of the performance of thin-film composite (TFC) reverse osmosis (RO) membranes. However, most hydrophilic interlayers reported to date, although capable of improving monomer wetting and loading, tend to suppress the formation of the characteristic ridge-valley morphology, thereby reducing the effective mass-transfer area and ultimately limiting further enhancements in water permeability. Herein, a heterogeneous covalent organic framework (COF)/metal-organic framework (MOF) interlayer was constructed in situ on the surface of a polysulfone (PSF) support layer, in which an ultrathin COF layer was formed via sulfonic-acid-containing Pa-SO 3 H and 2,4,6-triformylphloroglucinol to repair defects in the substrate. A ZIF-8 layer was subsequently grown in situ using the sulfonic acid groups on the COF as anchoring sites. Experimental results demonstrate that the COF/MOF interlayer structure significantly enhances the adsorption capacity of amine monomers and modulates their diffusion behavior, leading to a more pronounced leaf-like surface morphology, an optimized active-layer thickness, and an enhanced hydrophilicity of the polyamide (PA) layer. The i-TFC C/M-T membrane, based on the rigid trimesoyl chloride monomer, exhibits a water permeance of approximately 5.20 L m −2 h −1 bar −1 , which is about 2.2 times higher than that of the control group, while maintaining a NaCl rejection of approximately 99.10%. The novel interlayer design was also proven to be suitable for the flexible cyclohexane-1,3,5-tricarbonyl trichloride system. This study demonstrates that the COF/MOF heterogeneous interlayer can shift the performance balance point of RO membrane flux without significantly compromising ion exclusion, thereby providing a general and effective strategy for designing high-performance aromatic PA RO membranes for brackish water desalination.
✓ 已验证
产品关联
DOI
高影响因子
ADVANCED FUNCTIONAL MATERIALS
·
2026
·
IF 19.9
Siheng Liu,Chaozhong Shen,Zijie Deng,Xianhua Huan,Bin Du,Yushun Zhao,Hefeng Li,Chunyang Xu,Wenbin You,Renchao Che
Interfacial polarization is a cornerstone of dielectric engineering, yet the thermal processing required for interface construction typically triggers grain coarsening, thereby undermining interfacial density and dielectric performance. Here, a microwave non-equilibrium pyrolysis strategy is developed to overcome this bottleneck. By preprogramming compositional heterogeneity in a Zn-Ni bimetallic MOF and introducing a carbon nanotube (CNT) scaffold with strong microwave coupling capability, rapid structural reconstruction is achieved on a second-level timescale. Microwave-induced plasma arc discharge and transient thermal shock facilitate the confined nucleation and nanoscale dispersion of ZnO/NiO within N-doped carbon, creating a dense multiphase heterogeneous interface. This non-equilibrium pathway effectively suppresses structural relaxation, significantly boosting interfacial polarization and localized electric-field perturbations. Consequently, the MOF-derivatives achieve potent electromagnetic wave attenuation reaching a minimum reflection loss of −55.16 dB at 1.85 mm. Furthermore, this second-level strategy enables the energy-efficient and high-throughput production of heterogeneous powders, which, when integrated into macro-periodic architectures, achieve an ultra-wide bandwidth of 11.98 GHz. This work establishes a non-equilibrium pyrolysis paradigm that enables next-generation electromagnetic wave absorbers with integrated ultra-wideband performance and a minimal energy footprint.
✓ 已验证
DOI
高影响因子
COLLOIDS AND SURFACES B-BIOINTERFACES
·
2026
·
IF 5.9
Haodong Hu,Liuyue Xiao,Yun Li,Yanjing Yang,Shian Zhong
Conventional hemodialysis membranes suffer from limited toxin adsorption capacity and poor biocompatibility. This study proposes a novel strategy to fabricate high-performance composite membranes by incorporating polyvinylpyrrolidone (PVP)-modified Zr-melamine metal-organic frameworks (MOFs) into a polyvinylidene fluoride (PVDF) matrix. PVP acts as a crucial mediator, mitigating MOF agglomeration via steric hindrance and optimizing the membrane's pore structure for enhanced mass transfer. Comprehensive evaluations revealed that the membrane with an optimal PVP dosage (M3) achieved superior simulated hemodialysis performance, with clearance rates of 94.36% for creatinine and 86.37% for urea, significantly outperforming commercial equivalents. Furthermore, the M3 membrane demonstrated robust antifouling properties (stable water flux > 98 L/(m²·h) after 5 cycles), high bovine serum albumin (BSA) retention (98.01%), and excellent biosafety profiles, including low hemolysis (∼13.35%) and negligible Zr/melamine leaching. This work elucidates the structure-performance relationship of PVP-mediated MOF/polymer composites, offering a promising, biocompatible candidate for advanced uremic toxin clearance and long-term hemodialysis therapy.
✓ 已验证
产品关联
DOI
PubMed
高影响因子
危险品化学品经营许可证（带存储）