COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
·
2025
·
IF 5.4
Wenbin Zhang,Hongzhen Cai,Xiangsheng Han,Yu Zhao,Xu Huang
Cellulose nanofibers-based membranes with balanced mechanical strength, flux and rejection rate are highly demanded in the purification of contaminated water, nevertheless, which still hard to achieve. In this work, an interfacial engineering strategy was proposed to fabricate cellulose nanofibers-based composite membranes (LC/DA@ZIF x ) using aramid nanofibers (ANFs) as reinforcing agents, lignin as interfacial binder, and 2-dimensional leaf-shaped zeolitic imidazolate framework (ZIF-L) as pore modifier. Ascribing to the dense noncovalent interactions (e.g., H-bond and π-π stacking) among each components, as well as the hierarchically layered structure, the composite membranes simultaneously exhibited promising mechanical properties (a mechanical strength of ∼163 MPa and a toughness of ∼11.89 MJ/m 3 ), flux (61.95 L·m −2 ·h −1 ·bar −1 ), and rejection rates toward contaminated water (∼97.60 % for methyl violet, 98.68 % for rhodamine B, 97.12 % for rhodamine 6 G, 93.99 % for malachite green and 98.31 % for Coomassie brilliant blue). After 10 cycles of separation, the membranes can still retain a rejection rate of ∼69.98 %. Therefore, this study provided a simple and efficient strategy for manufacturing strong cellulose-based membranes that were suitable in the fast and efficient remediation of dyestuff effluent.
研究领域:
材料科学
·
环境工程
·
纳米技术
·
膜技术
·
水处理
✓ 已验证
产品关联
DOI
高影响因子
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
·
2022
·
IF 7.139
Shuang Liang,Guozhe Sui,Jinlong Li,Dongxuan Guo,Ze Luo,Rongping Xu,Hong Yao,Chao Wang,Shijie Chen
This study presents a novel approach for synthesizing C–ZnO/CdS graded nanorods derived from metal–organic frameworks (MOFs) that can be applied as a catalyst for photocatalytic hydrogen evolution from pure water. Porous C-doped ZnO was prepared by a self-template method using imidazole-like metal–organic backbone (ZIF-L) as a precursor through a two-step calcination method. CdS nanoparticles were deposited on ZIF-L surface by chemical deposition . The two-step calcination method introduced elemental C, and the unique architecture of ZIF-L played an essential role in forming the hierarchical structure of the porous ZnO nanorods. Compared with other ZnO/CdS catalysts, the C-doped ZnO/CdS graded nanorods exhibited remarkable photocatalytic activity for hydrogen production . The highest hydrogen production rate of 20.25 mmol g −1 h −1 with an apparent quantum yield (AQY) of 24.7% at 365 nm obtained over C–ZnO/CdS with Pt as co-catalyst, which was 24.4 and 65.3 times higher than that over CdS (0.83 mmol g −1 h −1 ) and ZnO (0.31 mmol g −1 h −1 ), respectively. This outcome was attributed to (i) the formation of Z-scheme heterojunction that significantly promoted the separation and migration of photogenerated electron–hole pairs; (ii) C doping that reduced the bandgap of ZnO and broadened its spectral response range; and (iii) the ordered arrangement of porous nanorods that effectively reduced the recombination rate of the electron–hole pairs.
研究领域:
材料科学
·
能源化学
✓ 已验证
DOI
高影响因子
Biomedical Materials
·
2026
·Vol. 21
·期 3
·035002
·
IF 3.9
Shanchun Zhang,Xiangyu Cheng,Jingtong Wu,Yunuo Song,Liping Ren
To address the challenge of preventing peri-implantitis, the present study developed a pH-responsive drug delivery coating on titanium (Ti) implants for controlled aspirin release. A hierarchical metal-organic framework coating was constructed on alkali- and heat-treated titanium by sequentially synthesizing Zeolitic imidazolate framework-L (ZIF-L) and ZIF-8 (denoted AHTL8). Material characterization confirmed the successful fabrication of a hierarchical micro–nano structure, which significantly enhanced surface hydrophilicity. The AHTL8 system exhibited a remarkably high aspirin-loading capacity (0.227 mg) and intelligent release kinetics, with sustained delivery (77.36% over 72 h) at physiological pH (7.4) and rapid, extensive release (97.39% over 72 h) under acidic conditions pH (6.5). Furthermore, the coating demonstrated excellent cytocompatibility, and the aspirin-loaded AHTL8 significantly promoted the proliferation of mouse osteoblastic MC3T3-E1 cells. These findings indicate that the ZIF-L/ZIF-8 composite coating serves as a highly efficient pH-triggered platform with high drug-loading and responsive release capacity, and its excellent cytocompatibility and MC3T3-E1 proliferation-promoting effect provide a preliminary basis for its potential application in promoting osseointegration.
✓ 已验证
DOI
高影响因子
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
·
2026
·
IF 5.4
Yantong Lu,Yue Li,Ji Zhang,Qianhong Shen,Hui Yang
Integrating robust physical barrier properties with efficient self-healing capability is widely recognized as an effective strategy for developing long-term anticorrosive coatings. In this study, a pH-responsive multifunctional nanocontainer, denoted as ZIF-L-BTA@PDA (ZBP), was rationally designed through in situ encapsulation of benzotriazole (BTA) within two-dimensional leaf-like ZIF-L, followed by dopamine (DA) self-polymerization to form a polydopamine (PDA) shell on the ZIF-L-BTA surface. The resulting ZBP nanocontainers were uniformly dispersed in a waterborne epoxy (WEP) matrix to fabricate a composite coating with enhanced barrier performance, intelligent self-healing behavior, and improved interfacial compatibility. In this system, ZIF-L serves a dual function as both an inhibitor reservoir and a high-aspect-ratio barrier filler, effectively prolonging diffusion pathways for corrosive species. The PDA shell endows the nanocontainer with pH-triggered BTA release behavior, additional self-healing capability, and the improved compatibility with the epoxy matrix. Release studies confirmed the pH-responsive characteristics of the ZBP nanocontainers. After 40 days of immersion in a corrosive medium, the ZBP/WEP coating maintained a low-frequency impedance modulus (|Z| 0.01Hz ) value of 1.08 × 10 10 Ω·cm 2 , approximately three orders of magnitude higher than that of pure WEP (1.34 × 10 7 Ω·cm 2 ), corresponding to an anticorrosion efficiency of 99.99%. The self-healing performance of ZBP/WEP was further validated by artificial scratch test. This work provides a promising strategy for designing high-performance, intelligent self-healing coatings for long-term corrosion protection.
✓ 已验证
产品关联
DOI
高影响因子
FOOD RESEARCH INTERNATIONAL
·
2026
·
IF 8.8
Tian Du,Qing-Ping Zheng,Ye-Ting Wang,Meng Li,Yan-Zhen Zheng
Green NADES extracted propolis bioactives integrated into PVA/ZIF-L films. • Leaf-like ZIF-L nanocarriers enhanced UV shielding and film flexibility. • PVAD/ZIF0.5 exhibited 70.2% DPPH scavenging and strong antibacterial activity. • Composite films effectively inhibited oyster spoilage during 10 d refrigeration. • Synergistic DES–ZIF-L system enabled safe and sustainable active packaging. Active packaging materials with integrated antioxidant and antimicrobial functions offer an effective strategy for extending the shelf life of highly perishable aquatic foods. In this study, a multifunctional composite film was fabricated by incorporating natural deep eutectic solvent (NADES)-extracted propolis bioactives and two-dimensional ZIF-L nanocarriers into a poly(vinyl alcohol) (PVA) matrix. The synthesized ZIF-L exhibited a characteristic leaf-like morphology with an average particle size of 140 nm, facilitating its uniform dispersion within the polymer network. Structural analyses confirmed that ZIF-L and propolis extracts were successfully integrated into the PVA matrix through hydrogen bonding and physical interactions. The resulting PVAD/ZIF composite films displayed enhanced flexibility and improved UV-shielding properties while maintaining good transparency. The optimized PVAD/ZIF0.5 film exhibited the highest antioxidant activity with a DPPH radical scavenging rate of 70.2%, and showed strong antimicrobial activity against Staphylococcus aureus and Escherichia coli . Application tests demonstrated that oysters packaged with PVAD/ZIF0.5 maintained TVB-N values below 30 mg/100 g and a TVC of 5.80 log CFU/g after 10 days of refrigerated storage, whereas control samples exceeded spoilage limits. Furthermore, the PVAD/ZIF0.5 retained good mechanical integrity under high-humidity conditions, while Zn 2+ migration remained well below the regulatory limit for food-contact materials. In addition, cytocompatibility assays showed high cell viability (96.28%) after 24 h incubation. These findings demonstrate that the PVAD/ZIF composite film is a promising biodegradable active packaging material for aquatic food preservation. Download: Download high-res image (113KB) Download: Download full-size image
✓ 已验证
产品关联
DOI
高影响因子
APPLIED SURFACE SCIENCE
·
2025
·
IF 6.9
Yuanjiang Li,Haobo Yuan,Feng Gao,Yu Shi,Haiqin Wei,Xiaodong Wang,Wei Huang
This work focused on improving the pervaporation performance of Pebax® 2533 membranes cast on polytetrafluoroethylene substrates, by incorporating home-made bifunctionalized ZIF-L with amino groups and aromatic rings, to prepare MMMs for dephenolization from the aqueous solution. Amino groups in ZIF-L-NH 2 led to the enhanced interaction between the fillers and the matrix by forming hydrogen bonds, thus aminated fillers dispersed more homogeneously in MMMs than the non-aminated fillers and the MMMs possessed a better interface structure. Aromatic rings in ZIF-L-NH 2 made the membranes more organophilic and brought them a stronger affinity towards phenol. The separation performance of the MMM with 15 wt% fillers and 20 μm thickness surpassed most of the other phenol-selective membranes with the separation factor of 59.79 and the total flux of 1.93 kg/m 2 ·h for 1000 ppm phenol solution at 80 ℃. Notably, the MMMs maintained a good separation performance even when the phenol concentration of the feed solution extended to 18,000 ppm. In a 60 h long-term pervaporation, the MMM was stable. We believe that such MMMs design based on fillers with a ligand rich in aromatic rings and amino groups is a promising approach for high-performance dephenolization membranes.
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF COLLOID AND INTERFACE SCIENCE
·
2022
·
IF 9.965
Jingqiu Li,Yi Feng,Lvye Yang,Jianfeng Yao
Metal ion-induced etching can effectively convert zeolitic imidazolate frameworks (ZIFs) to CoNi-layered double hydroxides (LDH). Here, different metal-ion-assisted etching methods are utilized to convert Co-ZIF-L to CoNi-LDH with various morphologies and electrochemical properties . The resultant CoNi-LDH (CoNi-1) with a composition of Co 0.7 Ni 0.3 (OH) 2 displayed a high electrochemical performance when Co-ZIF-L was treated in N, N -dimethylformamide-ethanol solution containing Co 2+ ions followed by Ni 2+ ion-induced etching under hydrothermal condition. The improved electrochemical performance of CoNi-1 can be attributed to structural advantages, where the well-dispersed ultrathin CoNi-LDH layers favor the exposure of surface active sites and promote ion diffusion to maximize electrochemical properties.
研究领域:
材料科学
·
电化学
✓ 已验证
DOI
高影响因子
ANALYTICA CHIMICA ACTA
·
2026
·
IF 6.1
Yanxiao Quan,Guojun Weng,Jian Zhu,Jianjun Li,Junwu Zhao
Background Volatile organic compounds (VOCs) in human exhaled breath serve as molecular fingerprints that reflect metabolic dysregulation and can indicate the onset and progression of diseases such as lung cancer. Surface-enhanced Raman scattering (SERS), characterized by its high sensitivity, molecular specificity, and tolerance to humidity, offers a promising approach for breath analysis. However, the intrinsically weak Raman activity of exhaled biomarkers and poor gas adsorption on solid substrates still hinder its practical implementation. Therefore, it is essential to develop a SERS-based breath sensor that simultaneously enables signal amplification, gas enrichment, rapid operation, and cost-effectiveness. Results This study presents a novel ultrasensitive SERS sensing platform based on a core-shell ZIF-L@Au NTs composite, integrating high sensitivity, selectivity, and rapid detection capabilities. The anisotropic gold nanotriangles (Au NTs), serving as the plasmonic core, exhibit excellent structural stability and strong electromagnetic field enhancement. The outer ZIF-L metal-organic framework (MOF) shell facilitates the selective adsorption and pre-enrichment of target analytes, while its confinement effect synergistically amplifies the SERS signal, markedly improving detection sensitivity. As a result, the system enables reliable quantification of 4-ethylbenzaldehyde in the concentration range of 10 −4 -10 −8 M, achieving a detection limit down to the sub-ppm level with high stability and repeatability. Simulated detection of the potential lung cancer biomarker 4-ethylbenzaldehyde demonstrated the platform's strong enrichment capability and outstanding sensing performance. Significance This work establishes an ascorbic-acid-directed strategy to construct flower-like ZIF-L and, for the first time, integrates gold nanotriangles with a metal-organic framework into a core-shell ZIF-L@Au NTs SERS platform. The synergistic combination of MOF-based gas enrichment, sharp-tip plasmonic hot spots and 4-ATP/aldehyde chemistry enables sub-ppm level detection of exhaled 4-ethylbenzaldehyde, highlighting a promising route for non-invasive breath diagnostics.
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF MEMBRANE SCIENCE
·
2026
·
IF 8.8
Mengyao Chen,Tianqi Zheng,Hangqing Xue,Yeqiang Lu,Congjie Gao,Lixin Xue
Cross-substrate counter diffusion (CSCD) between imidazole and Zn(II)-loaded polyamide (PA) layers is carried out to in-situ grow zeolitic imidazole framework-leaf (ZIF-L) particles and improve the nanofiltration (NF) performances of negatively charged NF membranes. To achieve uniform distribution of Zn(II) in the formed PA layer, Cyclen was used to complex Zn(II) precursors during the interface polymerization (IP) between piperazine (PIP) and trimesoyl chloride (TMC) to dissolve the Zn(II)/PIP precipitation in the aqueous phase. Results showed that the addition of Cyclen improved the uniform dispersion and firm combination of ZIF-L particles (PTs) in the PA layers, improving both the water permeance and salt rejection of the formed TFN NF membranes. Under optimal conditions, TFN-PC 0.10-0.15 /ZIF membrane achieves a Na 2 SO 4 rejection of 90.2-96.8%, a pure water permeance of 25.8-32.8 L·m -2 ·h -1 ·bar -1 , a NaCl/Na 2 SO 4 mixed salt separation factor of 9.0-29.8, and good anti-fouling and operational stability.
✓ 已验证
产品关联
DOI
高影响因子
Applied Sciences-Basel
·
2025
·Vol. 15
·期 14
·8095
·
IF 2.5
Liqun Wu,Xiaojun He,Jian Zhou
The electrocatalytic CO2reduction reaction (CO2RR) offers an energy-saving and environmentally friendly approach to producing hydrocarbon fuels. The use of a gas diffusion electrode (GDE) flow cell has generally improved the rate of CO2RR, while the gas diffusion layer (GDL) remains a significant challenge. In this study, we successfully engineered a novel metal–organic framework (MOF) heterojunction through the controlled coating of zeolitic imidazolate framework (ZIF-L) on ultrathin nickel—metal–organic framework (Ni-MOF) nanosheets. This innovative architecture simultaneously integrates GDL functionality and exposes abundant solid–liquid–gas triple-phase boundaries. The resulting Ni-MOF@ZIF-L heterostructure demonstrates exceptional performance, achieving a formate Faradaic efficiency of 92.4% while suppressing the hydrogen evolution reaction (HER) to 6.7%. Through computational modeling of the optimized heterojunction configuration, we further elucidated its competitive adsorption behavior and electronic modulation effects. The experimental and theoretical results demonstrate an improvement in electrochemical CO2reduction activity with suppressed hydrogen evolution for the heterojunction because of its hydrophobic interface, good electron transfer capability, and high CO2adsorption at the catalyst interface. This work provides a new insight into the rational design of porous crystalline materials in electrocatalytic CO2RR.
研究领域:
电化学
·
材料科学
·
环境科学
·
纳米技术
·
化学工程
✓ 已验证
产品关联
DOI
高影响因子
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
·
2024
·
IF 8.1
Yi Zheng,Jinyue Song,Junzhou Men,Hui Xian,Yating Wang,Tao Jiang
Metal organic frameworks (MOFs) are regarded as the promising potential photocatalytic materials because of its high specific surface area , regular morphology and highly adjustable structure. Herein, introducing different addition percentage of 1-vinylimidazole to two-dimensional zeolite imidazole framework (ZIF-L) with leaf-shaped morphology was successfully prepared via water-assisted strategy and applied in the photocatalytic hydrogen evolution experiments. The results indicate that VZ-12 shows the highest photocatalytic activity with hydrogen production rate of 162.7 μmol g −1 h −1 , which is 3 times than that in VZ-0 (pure ZIF-L, 56.33 μmol g −1 h −1 ) under simulated sunlight. The enhanced performance is ascribed to the increased specific surface area observed via BET, narrow band gap ( E g ) explored through UV–vis DRS and decreased recombination of photo-generated charge carriers measured by photoluminescence (PL). In a word, the effort of our study provides a new idea for developing and fabricating efficient hydrogen production photocatalyst via water splitting.
研究领域:
材料科学
·
光催化
✓ 已验证
产品关联
DOI
高影响因子
ADVANCED FUNCTIONAL MATERIALS
·
2025
·
IF 19
Fujun Li,Zeyu Cao,Hui Zhang,Feichao Wu,Weijuan Guo,Yanqing Yang,Jingde Li,Xiongfu Zhang,Yi Liu
Precise orientation regulation represents an important pathway for microstructure optimization and performance enhancement of metal–organic framework (MOF) membranes, which remains challenging to achieve. In this study, a magnetic field is employed to prepare Co-based zeolitic imidazolate framework-L (Co-ZIF-L) membranes with controlled orientation. The application of a magnetic field promotes the ordered migration of Co 2+ ions along the magnetic field lines and enables Co 2+ ions to orderly coordinate with ligands along the easy magnetization axis of MOF crystals, exposing the lowest energy crystal plane and promoting selective growth of MOF crystals. Resulting (200)-oriented Co-ZIF-L membrane with a thickness of ≈40 nm exhibits H 2 /CH 4 separation factor of 59.1 with H 2 permeance of 2275 GPU. This work provides a facile and efficient strategy to accurately regulate the preferred orientation of MOF membranes toward superior gas separation.
研究领域:
材料科学
·
膜技术
·
纳米材料
·
气体分离
·
晶体工程
✓ 已验证
产品关联
DOI
高影响因子
危险品化学品经营许可证（带存储）