Journal of Materials Chemistry A
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2025
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IF 9.5
Xiaotong Fu,Meili Ding,Yang Wang,Jiani Chen,Jianfeng Yao
Highly efficient carbon dioxide (CO2) conversion over novel photothermal catalysts featuring a wide light absorption range to meet the energy and chemical demands is an urgent challenge. To this end, an etching-coordination strategy is designed to synthesize novel metal–organic framework/metal–tannic acid (TA) composites for photodriven CO2 cycloaddition. ZIF-8 can be partially removed by TA to yield a yolk–shell structure, facilitating multiple reflections of light and thereby improving light utilization and photothermal conversion. With the aid of coordination between the Fe3+ and –OH groups, the formation of Fe–TA networks on the surface of ZIF-8 significantly enhances its photoresponsive range. Notably, under full-spectrum illumination of 550 mW cm−2 for 10 h, ZIF-8/Fe–TA-10 achieves a catalytic yield of 96.3% with >99.9% selectivity for the coupling of CO2 and epichlorohydrin. Furthermore, the calculation results suggest that CO2 cycloaddition can be accelerated with a significantly reduced activation energy (19.4 kJ mol−1) in the presence of ZIF-8/Fe–TA-10. On the basis of the experimental results, a cooperative reaction mechanism coupling photothermal catalysis and photocatalysis is proposed. This work provides an available strategy for the future synthesis of MOF-based photocatalysts for catalytic and other applications.
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Journal of Environmental Chemical Engineering
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2025
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IF 7.2
Chunlei Wang,Dawei Ji,Xuyong Tian,Hongye Lv,Xiuping Li,Tai Zhang,Haolong Xue,Chun Wang,Jingjing Yan,Changfa Xiao
Doping metal-organic frameworks into the casting solution is a common method for preparing mixed matrix membranes. However, metal-organic frameworks are prone to agglomeration and poor dispersion. This can lead to a decline in membrane performance. To address these issues, this work proposed “co-solvent synthesis and in-situ doping” strategy. In this strategy, N,N-Dimethylformamide, which was also the solvent in the casting solution, was chosen as the synthesis carrier for ZIF-8-NH 2 nanoparticles. The prepared ZIF-8-NH 2 suspension could be directly doped into the casting solution in situ. This process eliminated the drying and pre-dispersion steps. Research showed that with 0.5 wt% ZIF-8-NH 2 , the membrane's hydrophilicity significantly improved, with the water contact angle of 72.5°. The pure water flux reached 229 Lm −2 h −1 . Moreover, the retention rates of Congo Red and NaCl were 97.3 % and 3.5 % respectively, demonstrating excellent dye/salt separation. In particular, the flux recovery rate was maintained at more than 91 %, demonstrating good anti-fouling performance. This work provides a promising technical strategy for the efficient treatment of textile dyeing wastewater and resource recovery.
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Materials Today Chemistry
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2025
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IF 6.7
Henigul osman,Xiaohui Tang,Dong Zhang,Bo Liu,Jie Gao,Xin Chen,Tao Jiang,Haobo Pan,Yingbo Wang
To address the dual challenges of controlled drug delivery and microenvironment modulation in repairing osteoporotic bone defects, we developed a multifunctional poly(l-lactic acid) (PLLA)-based composite fibrous scaffold (PLLA/PDA/ZIF-8@Qu). The scaffold was fabricated via electrospinning, followed by in situ polydopamine (PDA) polymerization to robustly immobilize ZIF-8 nanocarriers loaded with quercetin (Qu) on the fiber surface. The mussel-inspired PDA coating served as an adhesive interlayer between ZIF-8 and PLLA. Additionally, it provided near-infrared (NIR) responsiveness and surface functionalization capability. Under osteoporotic acidic conditions (pH 5.0–6.0), the scaffold exhibited pH-triggered release behavior, ZIF-8 degradation accelerated Zn 2+ release, and cumulative Qu release reached 90 %. Zn 2+ contributed to antibacterial activity, while the PDA coating enabled NIR-driven photothermal/photodynamic synergy, achieving 100 % inhibition against both E. coliand S. aureus. Quercetin (Qu) exerted antioxidant effects via the Nrf2/ARE pathway and promoted macrophage polarization toward the M2 phenotype, thereby ameliorating the local inflammatory microenvironment. In vitro , the scaffold enhanced osteogenic differentiation of bone marrow mesenchymal stem cells, as indicated by a 2.3-fold increase in alkaline phosphatase activity, a 1.85-fold increase in mineralized nodule formation, and upregulated Runx2 expression. In a rat femoral defect model, the scaffold group at 8 weeks post-implantation showed increased bone mineral density (BMD) from 0.454 to 0.935 g/cm 3 and trabecular number (Tb.N) from 0.694 to 0.923 mm −1 , with the defect largely filled by newly formed bone. Collectively, these results demonstrate that the PDA-enabled, ZIF-8/Qu-integrated PLLA scaffold couples pH-responsive release with antibacterial, anti-inflammatory, and pro-osteogenic functions, supporting its potential as a bone repair material responsive to pathological microenvironments.
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INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
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2025
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IF 8.5
Wenxiang Hu,Jiangyu Zong,Jiajun Gong,Rong Xue,Yangbin Lv,Biao Liu,Wenting Dai,Yajun Wang,Chu Chu
Lipase immobilization plays a pivotal role in enhancing enzyme stability, reusability, and practical applicability in ligand fishing, a technique used to identify bioactive compounds from traditional Chinese medicine (TCM). However, conventional methods often lead to significant activity loss due to suffering from enzyme leakage, conformational distortion, and mass transfer resistance. In this study, we present a dynamic defect-engineering (DDE) strategy within zeolitic imidazolate framework-8 (ZIF-8) to overcome these limitations. The DDE process enables adaptive formation of transport channels driven by enzyme–framework interactions, facilitating the migration of lipase from surface adsorption to intracrystalline encapsulation. Brunauer–Emmett–Teller (BET) analysis confirmed successful encapsulation, showing a reduced specific surface area of 565.1 m 2 /g for lipase@ZIF-8, indicative of enzyme incorporation within the defect-engineered framework. This structural optimization significantly improved biocatalytic performance, achieving 82 % activity retention and 65 % immobilization yield, compared to 44 % activity retention in conventional in situ encapsulation. Utilizing the preserved catalytic activity, we established a lipase-based ligand fishing platform, which successfully identified 20 potential inhibitors (10 anthraquinones and 10 flavonoids) from Cassiae Semen and Citri Reticulatae Pericarpium using HPLC-Q-TOF-MS/MS analysis. Overall, this work demonstrates the effectiveness of the DDE strategy in enhancing lipase immobilization within ZIF-8, offering a robust and efficient platform for the high-throughput screening of lipase inhibitors from natural products and advancing the application of enzyme-based ligand fishing in TCM research.
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ACS Applied Materials & Interfaces
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2025
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IF 8.2
Guangyu Zhu,Fuyan Kang,Xiaoya Ding,Chunxiao Yin,Fa-Qian Liu
Biofouling has been a persistent challenge for offshore equipment, significantly affecting its longevity. In this study, two-dimensional (2D) ZIF-7 nanosheets were synthesized via a hydrothermal method and modified with polydopamine (PDA) to enhance their dispersibility. A multifunctional ZIF-7@PDA-CeO2 nanocomposite was then prepared through in situ growth, where CeO2 was uniformly and securely anchored onto the ZIF-7@PDA surface, facilitated by the large specific surface area and its electrostatic interactions between ZIF-7@PDA. UV–vis absorption spectra demonstrate that the ZIF-7@PDA-CeO2 exhibit haloperoxidase-like (HPO-like) catalytic activity, efficiently catalyzing the oxidation of NH4Br and H2O2 to generate HBrO. Antibacterial assays indicate that ZIF-7@PDA-CeO2 possesses strong bactericidal activity and effectively inhibits biofilm formation. Furthermore, ZIF-7@PDA-CeO2 are used as fillers to prepare ZIF-7@PDA-CeO2/EP composite coating, and the antibacterial and long-term corrosion resistance is also explored. We believe this work offers a sustainable solution to the challenges of biofouling and corrosion in marine environments.
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Small
·
2025
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IF 12.1
Yan Gao,Xiayu Lia,Shuai Huang,Na Zhao,Jianshe Zhao
Three-dimensionally ordered macro-microporous 3DOM-ZIF-8-based peroxophosphotungstate (DIL-PW 4 ) is constructed to break the limitation of micropores inherent in traditional supported catalysts. The presence of ordered macropores expose more active sites and significantly enhance mass diffusion, thereby boosting catalytic activity, especially in reactions involving larger molecules. The prepared composite DIL-PW 4 @3DOM-ZIF-8 is verified by various characterization techniques and used as a catalyst for the extraction oxidation desulfurization of multi-component simulated fuel. The results showed that heterogeneous catalyst DIL-PW 4 @3DOM-ZIF-8 has a remarkable catalytic effect, with 97.03% total sulfides removal in 120 min. In addition, the stability and reusability of the catalyst DIL-PW 4 @3DOM-ZIF-8 are evaluated as important parameters for industrial applications. In addition, a possible mechanism based on experimental studies are proposed.
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INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
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2025
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IF 8.3
Kun Geng,Pengnian Shan,Lijing Wang,Feng Guo,Weilong Shi
Carbon-based materials have attracted considerable attention in the field of photothermal catalysis owing to their exceptional chemical stability, wide-range light harvesting and high photothermal conversion efficiency. In this work, ZIF-67 was pyrolyzed at different temperatures to produce Co-N-C materials with varying graphitization degrees, revealing that lower graphitization leads to superior photothermal performance. Herein, they are employed as heat-core material and integrated with ZnIn 2 S 4 (ZIS) to form composites via a water-bath method for photothermally promoted photocatalytic H 2 production. Experimental resutls reveals that the low-graphitized Co-N-C features abundant structural defects to construct highly active surface sites and exhibits a strong localized surface plasmon resonance (LSPR) effect that efficiently converts photons into phonons, thereby elevating the local surface temperature of the catalyst. Meanwhile, the interfacial interaction formed between the low-graphitized Co-N-C and ZIS in Co-N-C@ZIS composite effectively promotes the separation and migration of photogenerated electron-hole pairs, thereby enhancing the performance of the photothermal-assisted photocatalytic H 2 generation with achieving an H 2 generation rate of 14.09 mmol g −1 h −1 under full-spectrum illumination, 12.04-fold higher than pure ZIS (1.17 mmol g −1 h −1 ). The work provides valuable insights and strategies for significantly enhancing photothermally promoted photocatalytic hydrogen evolution through the utilization of carbon-based heat-core materials.
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COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
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2025
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IF 5.4
Yunfei Shen,Huaiqi Shi,Keying Qu,Zuopeng Li,Bolong Yang,Zhansheng Wu
Multifunctional cotton fabric holds significant promise for domestic and healthcare applications. A key challenge remains developing sustainable fabrication routes for mechanically durable cotton textiles integrating intrinsic and photothermally amplified antibacterial functions. Herein, we prepared ZIF-8/67-loaded Ag nanoparticles on cotton fabric using in-situ reduction technology (ZIF-8/67-Ag@CCT). Subsequent dip-coating with polydimethylsiloxane (PDMS) produced ZIF-8/67-Ag@CCT@PDMS, enhancing superhydrophobicity. The modified fabric exhibited exceptional superhydrophobicity (water contact angle: 148.55 ± 0.21°) and UV-blocking capabilities (UPF value: 186). The surface demonstrated excellent self-cleaning properties against dyes and maintained robust stability after 30 washing cycles and immersion in acidic/alkaline solutions (>97.0% antibacterial efficacy retention). Critically, the fabric exhibited excellent biocompatibility, as validated by human induced pluripotent stem cell-derived skin organoid assays showing no adverse effects on cell proliferation, apoptosis, or survival rates. Antibacterial effects originated from the penetration of AgNPs and Ag⁺/Zn²⁺/Co²⁺ ions into bacterial structures, disrupting metabolism via reactive oxygen species (ROS) generation. The multifunctional ZIF-8/67-Ag@CCT@PDMS fabric presents a highly promising solution for durable antibacterial medical textiles, offering combined antibacterial activity, exceptional stability, self-cleaning, UV resistance, and biocompatibility.
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SEPARATION AND PURIFICATION TECHNOLOGY
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2025
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IF 9
Zhibo Huang,Tiandi Pan,Ning Tang,Fei Sun,Peijian Du,Ni Li
Nanofibrous membranes are considered ideal candidates for water purification. However, the membrane fouling results in an irreversible decline in separation flux, while the slippage of nanofibers leads to an increase in pore size under driving pressure, subsequently inducing a decline in separation efficiency. Rational structure design and material selection are crucial for separation performance improvement. In this study, we report double-layer hierarchical structured nanofibrous membranes that demonstrate simultaneous superhydrophilicity and underwater superoleophobicity for oil-water separation via a combination of electrospinning and seed-mediated solvothermal strategy. The double-layered hierarchical structure comprises an upper layer of ZIF-8@PMIA composite nanofibers and a bottom layer of PMIA nanofibers. Notably, the incorporation of ZIF-8 species confers several advantages, such as increased surface roughness, reduced pore size, and enhanced superhydrophilicity, collectively contributing to superior anti-fouling performance and high separation efficiency. Meanwhile, the bottom PMIA nanofibers, with larger diameters, ensure robust mechanical integrity for the entire membrane. Due to the rational structural design, the membrane achieves outstanding separation performance, including a 99.91 % separation efficiency for diesel-in-water emulsions and an ultrahigh flux of 3821.7 L m − 2 h −1 for dichloromethane-in-water emulsions. Therefore, this membrane has broad application prospects in the oil–water separation field.
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JOURNAL OF HAZARDOUS MATERIALS
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2025
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IF 11.3
Jiawen Zhu,Mengying Xia,Zhenzhen Liu,Yi Yuan,Qianqian Lv,Huina Zhou,Minghua Lu
Due to persistence, high toxicity, and tendency to bioaccumulate of polychlorinated biphenyls (PCBs), accurate detection of their residual levels in environmental and food samples is particularly important. To address the challenges posed by complex sample matrices and trace analytes, a new hierarchically porous (micro/mesoporous) carbon nanosheet (HPC-NS) material was designed as sorbent. The HPC-NSs were synthesized using cobalt-based ZIF-67 as self-sacrificial template and layered double hydroxide (LDH) as substrate. These HPC-NSs were applied as fiber coating material for solid-phase microextraction (SPME) to extract and enrich trace amounts of PCBs. By combining headspace SPME with GC–MS/MS, a highly sensitive method was developed for the detection of PCBs in green tea and milk. The proposed method demonstrated a wide linear range (0.2–5000 ng·L −1 ) and low detection limits (0.02–0.06 ng·L −1 ). Experimental results indicated that the HPC-NSs exhibit excellent extraction efficiency toward PCBs, which can be attributed to multiple mechanisms including pore filling, π–π stacking, cation–π interactions, and polar interactions. This work not presents a promising SPME coating material but also offers a robust and sensitive analytical method for detecting trace PCBs in complex matrices.
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COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
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2025
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IF 5.4
Liangliang Zhao,Mingyang Lin,Hongyan Pan,Zheng Chen,Mingrui Liao,Qian Lin,Song Li
Membrane separation technology encounters significant challenges in achieving simultaneous separation and purification of oily wastewater contaminated with heavy metal ions. Herein, ZIF-8 derived mesoporous carbon etched by oxygen plasma (DMC-OP X ) was used as a functional component for adsorbing heavy metal ions and blended with hydrophilic copolymers PVDF- g -PHEMA into the PVDF casting solution, enabled the fabrication of an advanced nanocomposite membrane (M-H-DMC-OP X ) with separation-adsorption functionality through NIPS method. The characterization results indicate that oxygen plasma etching significantly increases the oxygen-containing groups on DMC-OP X surfaces enhancing hydrophilicity, heavy metal adsorption capacity, and mitigating flux reduction caused by unmodified DMC incorporation. Calculation analyses demonstrate that the oxygen-containing groups on DMC-OP X surface can form hydrogen bonding networks with PVDF- g -PHEMA chains, thereby improving the tensile strength of M-H-DMC-OP X membrane. The one-step separation experiments on oil-water emulsions containing Cu 2 + , Pb 2+ , Cr 3+ , Fe 3+ , and Co 2+ demonstrate that the M-H-DMC-OP 6 membrane exhibits outstanding oil-water separation efficiency and heavy metal removal efficiency, reaching over 99.2 % and 82.4 %, respectively. This work developed a multifunctional separation membrane for complex oily wastewater and established a feasible strategy for improving the water flux of nanocomposite membranes.
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JOURNAL OF NANOBIOTECHNOLOGY
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2022
·Vol. 20
·期 1
·1-18
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IF 9.429
Chen Xuehua,Huang Yongquan,Chen Hui,Chen Ziman,Chen Jiaxin,Wang Hao,Li Dan,Su Zhongzhen
Background Insufficient radiofrequency ablation (IRFA) can promote the local recurrence and distal metastasis of residual hepatocellular carcinoma (HCC), which makes clinical treatment extremely challenging. In this study, the malignant transition of residual tumors after IRFA was explored. Then, arsenic-loaded zeolitic imidazolate framework-8 nanoparticles (As@ZIF-8 NPs) were constructed, and their therapeutic effect on residual tumors was studied. Results Our data showed that IRFA can dramatically promote the proliferation, induce the metastasis, activate the epithelial–mesenchymal transition (EMT) and accelerate the angiogenesis of residual tumors. Interestingly, we found, for the first time, that extensive angiogenesis after IRFA can augment the enhanced permeability and retention (EPR) effect and enhance the enrichment of ZIF-8 nanocarriers in residual tumors. Encouraged by this unique finding, we successfully prepared As@ZIF-8 NPs with good biocompatibility and confirmed that they were more effective than free arsenic trioxide (ATO) in sublethal heat-induced cell proliferation suppression, apoptosis induction, cell migration and invasion inhibition, and EMT reversal in vitro. Furthermore, compared with free ATO, As@ZIF-8 NPs exhibited remarkably increased therapeutic effects by repressing residual tumor growth and metastasis in vivo. Conclusions This work provides a new paradigm for the treatment of residual HCC after IRFA. Graphical Abstract
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