CHEMISTRY-A EUROPEAN JOURNAL
·
2026
·
IF 3.6
Lai Wei,Zhendong Yu,Haofeng Wu,Xiaoxiao Xing,Yiru Zou,Limin Song,Peiwen Wu,Minmeng Tang,Xiaoxiao Yu,Wenshuai Zhu
The catalytic oxidation of aromatic sulfides under mild, ambient conditions facilitates the high-value utilization of diesel fuel, free from external heating sources. Herein, a high-performance confined catalyst through a simple one-pot method is developed, denoted as HPW@ZIF-8. The phosphotungstic acid is encapsulated and confined within the pores of the ZIF-8 framework, achieving ambient temperature catalytic oxidation of aromatic sulfides to high-value sulfones. The induced charge shift in the confined catalysis is observed, as the weak interaction force between the phosphorus-tungsten structure and Zn center, strengthening the catalytic oxidation performance. Under unheated conditions, the hydrogen peroxide utilization rate and activity of the catalyst at ambient temperature are both greater than 97.0%. In addition, the confined catalysts exhibit good cycling performance after 10 cycles, attributed to the highly matched host and guest, with only 0.2% HPW loss. Above all, this work offers new insights for the green, low-energy consumption, and high-value utilization of diesel fuel. Graphical Constructing confined catalytic materials by encapsulating active centers in the cavities of ZIF-8 metal-organic frameworks. This strategy enables the efficient catalytic oxidation of sulfur-containing compounds in diesel to high-value sulfone products at ambient temperatures. This produces ultra-low diesel with a sulfur content of less than 10 mg/L.
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高影响因子
ACS Applied Nano Materials
·
2026
·
IF 5.8
Xuefei Li,Tao Tao,Yu Feng,Yonghou Zhao,Jianbo Chai,Bing Zhang
To combat microglia-induced neuroinflammation after ischemic stroke, this study developed an intelligent nanodrug delivery system named DZIF@HA. The platform employs a ZIF-8 carrier to load the metabolic drug dimethyl malonate (DM), which is further functionalized with the AIRA peptide and hyaluronic acid for targeted delivery to inflamed microglial cells in the brain. Leveraging its pH-responsive properties, DZIF@HA achieves controlled drug release at the acidic lesion site, facilitating the shift of microglia from the pro-inflammatory M1 to the neuroprotective M2 phenotype. Experimental results demonstrate that this strategy successfully alleviates neuroinflammation, reduces infarct size, and promotes the recovery of neurological function, with a high safety profile, offering avenue for stroke treatment.
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高影响因子
CHEMICAL ENGINEERING JOURNAL
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2026
·
IF 12.5
Zhihan Hu,Tong Wang,Huimeng Feng,Zhipeng Zhao,Xiao Sun,Shougang Chen
Core-shell Cu-BTC@ZIF-8 enhanced hydrophobicity without sacrificing ethylene adsorption. • ZIF-8 shell provided water blocking while enabling ethylene transport. • HMDS/PDMS integration improved water resistance, filler dispersion and membrane processability. • Active packaging membrane with ethylene-scavenging, antibacterial activity, and improved water stability. Ethylene accelerates postharvest ripening and quality loss of fruits and vegetables even at ppm levels. Copper-based MOFs, such as Cu-BTC, can capture olefins via open metal sites (OMS) through π-complexation, yet water sensitivity and powder form limit their use in humid, air-based transport. Here, we report an ethylene-scavenging composite membrane developed through a processable material-design strategy involving structural protection, surface engineering, and membrane integration. A ZIF-8 shell is grown in situ on Cu-BTC to form a microporous protective interface that suppresses water ingress and mitigates water-induced OMS deactivation, while its known aperture flexibility associated with 2-methylimidazolate linker motion is incorporated into the design to maintain ethylene transport through the shell under humid air. In air at 25 ± 2 °C and 50 ± 5% RH, Cu-BTC@ZIF-8 exhibited an ethylene uptake of 35.97 cm 3 (STP) g −1 over 72 h, exceeding pristine Cu-BTC. An ultrathin HMDS-derived siloxane layer was subsequently introduced, and the particles were embedded in PDMS to further improve water resistance and convert the powder adsorbent into a processable membrane form with improved engineering applicability. In an 80 L sealed chamber under real air, the Cu-BTC@ZIF-8 + HMDS|PDMS membrane showed an ethylene removal capacity of 34.71 cm 3 (STP) g −1 over 72 h based on MOF mass and retained approximately 80% of its initial performance after ten 72 h cycles. In a 10-day banana storage experiment at 25 ± 2 °C, the composite membrane delayed visible browning by 3–4 days compared with blank and pure PDMS controls and showed inhibitory activity against E. coli and S. aureus . This work proposes a feasible material-oriented strategy to enhance the water resistance and processability of Cu-BTC-based MOF materials, while avoiding compromising ethylene adsorption performance under real-air conditions.
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高影响因子
DESALINATION
·
2023
·
IF 9.9
Xue Chang,PeiZhuo Hu,Huiling Liu,Zixiao Lv,Jingyi Yang,Jianli Wang,Zhan Li,Lijuan Qian,Wangsuo Wu
Due to the popularization of nuclear energy and the application of nuclear technology , there is an increasing demand for uranium resources. Extraction of uranium from seawater has become a hot topic. To achieve uranium capture, a three-dimensional carbon structure material (GO/ZIF-8@SA) with ionic stress elastic expansion consisting of graphene oxide, ZIF-8 and sodium alginate was developed. Surface morphological characteristics and elemental composition evaluation were determined by using SEM. The doping concentration of the elements in the synthesized products was measured by EDS. XRD, FT-IR and XPS confirmed the successful doping of ZIF-8. In seawater spiked with uranium, GO/ZIF-8@SA showed not only an ultra-high adsorption capacity of 1897 mg·g −1 for U(VI), but also a high selectivity . Interestingly, the volume of GO/ZIF-8@SA can be elastically expanded with the adsorption of U(VI). The expanded microspheres can be directly captured from the seawater by the mesh sieve. GO/ZIF-8@SA solves the problem of balancing adsorption capacity and selectivity in a complex seawater environment, which gives it great potential for application in seawater uranium extraction.
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高影响因子
JOURNAL OF POROUS MATERIALS
·
2022
·Vol. 30
·期 3
·889-897
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IF 2.523
Hu Lihua,Chen Li,Mo Xiaohong,Peng Xiong,Xu Wei,Liu Feng,Yan Zongcheng
For the effective utilization of carbon resources, a facile and recyclable heterogeneous catalyst system with high reactivity and stability is urgently needed for chemical fixation of CO 2 . Herein, a micro/nanostructured ZIF-8/CeO 2 composite was designed by direct surface-nucleated ZIF-8 nanoparticles on spindle-like CeO 2 . The ZIF-8 nanoparticles content of the ZIF-8/CeO 2 composite could be tuned by the changing of reaction parameters, such as the molar ratio of reactants and the reaction time. The ZIF-8/CeO 2 composite exhibits remarkably enhanced catalytic activity and superior reusability for cycloaddition reaction of CO 2 and epoxide than its pure substance. The enhanced performance of ZIF-8/CeO 2 composite should be attributed to its high specific surface area and abundant porosity, outstanding thermal stability, and the appearance of a new moderate acid/base site in composite material. Considering the convenient preparation, enhanced catalytic activity and excellent reusability of ZIF-8/CeO 2 composite, this work offers a new strategy to replace ZIFs-based porous catalysts for chemical fixation of CO 2 .
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JOURNAL OF MEMBRANE SCIENCE
·
2022
·
IF 10.53
Ke Chen,Linhan Ni,Hao Zhang,Li Li,Xin Guo,Junwen Qi,Yujun Zhou,Zhigao Zhu,Xiuyun Sun,Jiansheng Li
The performance of mixed matrix membranes (MMMs) is significantly determined by the inherent structure and composition of incorporated nanofillers. In this work, the core-shell ZIF-8@RF nanofillers were prepared through a kinetically-controlled growth of zeolitic imidazolate framework-8 (ZIF-8) and polymerization of resorcinol and formaldehyde (RF), followed by being incorporated into the glassy 6FDA-Durene and rubbery Pebax 1657 via a physical blending approach to form MMMs. Benefiting from the enhanced interfacial compatibility, CO 2 affinity, and the intrinsic characteristics of porous ZIF-8, the resultant MMMs demonstrated outstanding performance for CO 2 /CH 4 separation. The CO 2 permeability and CO 2 /CH 4 selectivity of the ZIF-8@RF/6FDA-Durene (ZIF-8@RF/Pebax 1657) MMMs increased up to 1332.1/363 Barrer and 28.6/29.6, corresponding to an improvement of 65.4/116.3% of the CO 2 permeability and 49.7/53.4% of the CO 2 /CH 4 selectivity compared to the pristine membrane. Meanwhile, CO 2 /CH 4 selectivity of ZIF-8@RF MMMs increases by up to 33.0% and 28.1% in comparison to the ZIF-8 without RF layer MMMs, respectively. More importantly, both MMMs can maintain their extraordinary separation performance after stabilized in the existence of moisture. These results demonstrate that the separation performance of the MMMs was remarkably improved with the addition of ZIF-8@RF.
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高影响因子
JOURNAL OF MEMBRANE SCIENCE
·
2022
·
IF 10.53
Li Yin,Dongfeng Li,Hongxia Guo,Shuai Wang,Tiexin Zhang,Yunling Liu,Fangyuan Gai,Xiaogang Zhao
Incorporating functional materials into polymer precursors is an effective way to prepare carbon molecular sieve (CMS) membranes for solving the trade-off problem between permeability and selectivity of gas separation. In this work, we induced ZIF-8 nanoparticles (from 5 to 20 wt%) as a doping agent to construct a series of phenolphthalein-based cardo poly (arylene ether ketone) (PEK-C) -based hybrid carbon molecular sieve (ZCMS) membranes for CO 2 /N 2 separation via an oxidation and a carbonization process with pyrolysis temperature in the range of 500–700 °C. The carbonized ligand and metal centre of ZIF-8 offered additional pores of carbon matrix, which tailored the ultramicropores of ZCMS membranes for both excellent CO 2 permeability and selectivity. By treating with the temperature of 600 °C, ZCMS-600-15 (ZCMS membrane based on 15 wt% of ZIF-8-doped PEK-C) exhibited the highest CO 2 permeability of 8902 Barrer, which was 1.8 times higher than that of CMS-600 (CMS membrane based on naked PEK-C). ZCMS-600-15 showed an ideal CO 2 /N 2 selectivity value of 42.2, which is also higher than that of other samples, indicating that the appropriate doping amount of ZIF-8 is 15 wt% and the proper carbonization temperature is 600 °C. Moreover, among all the samples, ZCMS-600-15 also showed a superior CO 2 permeability of 8285 Barrer and the highest CO 2 /N 2 selectivity of 24.08 for an equimolar mixture of CO 2 and N 2 , far exceeding the 2008 Robeson upper bound. Therefore, our results suggest that incorporating MOFs into polymer precursors to prepare hybrid carbon molecular sieve membranes by carbonization process could solving the trade-off problem between permeability and selectivity, introducing new possibilities for industrial application.
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JOURNAL OF MATERIALS SCIENCE
·
2022
·Vol. 57
·期 5
·3678-3687
·
IF 4.682
Bai Xiao-Han,Zhang Jun,Cheng Guo-Ting,Liu Xiao-Fei,Sun Tian-Cai,Yang Jun,Cao Zhi-Kai,Ramakrishna Seeram,Long Yun-Ze
Burns on human skin often leads to slow recovery because of continuous wound infections caused by the loss of skin protection. In this study, a seed-free soaking method is put forward to prepare PCL@ZIF-8/εPL nanofibers as a dressing for burn wounds. This ZIF-8-coated polycaprolactone (PCL) fiber exhibits increased specific surface area, significantly increasing the polypeptide loading of epsilon polylysine (εPL) from 12 to 20 wt.%. The antibacterial experiment found that ZIF-8 and εPL exhibited dual antibacterial properties, and after εPL was loaded to ZIF-8, the nanofiber demonstrated stronger antibacterial properties that can better kill the remaining tenacious bacteria. This high-efficiency bactericidal property, combined with the ability to protect wounds from common infections by bacteria in the air, would promote wound healing, shortening the healing time period from 24 to 17 days. Further tissue sections confirm that the shielding effect and dual antibacterial properties of the composite fiber membrane are the reasons behind the acceleration of the healing of burns and scalds. Shielding and antibacterial material are helpful for the treatment of burns and scalds, and it may also guide the treatment of other types of wounds.
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高影响因子
AICHE JOURNAL
·
2022
·Vol. 68
·期 8
·e17707
·
IF 4.167
Xiaoquan Feng,Donglai Peng,Meixia Shan,Xinpu Niu,Yatao Zhang
The ZIF-8@Agmim core-shell hybrid material was synthesized via a favorable post-modification method of ion exchange (PMIE). This infrequent ZIF-8@Agmim core-shell structure maintains a well-integrated pore size that is almost the same as ZIF-8. The similar equilibrium isotherms with ZIF-8 and better kinetic separation toward propylene/propane than ZIF-8 render ZIF-8@Agmim to be an interesting candidate for propylene/propane separation. The core-shell hybrid nanomaterial was further used as nanofillers in the polymer of intrinsic microporosity matrix (PIM-1) for propylene/propane separation. The resultant mixed-matrix membranes (MMMs) exhibited a simultaneous increase in C 3 H 6 permeability and C 3 H 6 /C 3 H 8 ideal selectivity compared to pure polymer membrane owing to a synergistic effect of molecular sieving from ZIF-8 and π -complexation of Ag + with propylene. The separation performance of the prepared MMM surpasses the upper bound line of polymer membranes. Furthermore, the hybrid materials possess superb photochemical stability and the corresponding MMMs exhibit excellent anti-aging property and long-term stability.
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高影响因子
Materials Today Nano
·
2022
·
IF 13.364
C. Shuai,X. Yuan,Y. Shuai,G. Qian,J. Yao,W. Xu,S. Peng,W. Yang
Antibacterial property is urgently needed in scaffold-induced bone regeneration. Zinc oxide (ZnO) as a photocatalyst enables to produce photoexcited electron-hole pairs to catalyze reactive oxygen species (ROS) generation, which triggers the peroxidation and consequently apoptosis of bacteria. However, the fast recombination of electron-hole pairs and the wide band gap of ZnO restrict the full play of its antibacterial property. Herein, a nitrogen-doped carbon-ZnO (NC-ZnO) heterojunction derived from metal organic frameworks was synthesized by direct carbonization . On one hand, the N-doped C in NC-ZnO acted as electron acceptors to trap photoexcited electrons in conduction band of ZnO, which improved the separation efficiency of electron-hole pairs. On the other hand, the N-doped C with high absorption coefficient enabled NC-ZnO to possess a relatively narrow band gap and wide light absorption range compared with ZnO. The obtained NC-ZnO heterojunction was then introduced into poly- l -lactic acid (PLLA) scaffold to construct a photodynamic antibacterial platform. The results showed that NC-ZnO endowed the scaffold with excellent photocatalytic activity and greatly stimulated the production of ROS. The antibacterial tests suggested that the PLLA/NC-ZnO scaffold possessed robust antibacterial activities with 99.9% antibacterial efficiency toward Escherichia coli , which was increased by 113.9% compared with PLLA/ZnO scaffold.
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高影响因子
CHEMOSPHERE
·
2022
·
IF 8.943
Daohu Sheng,Xintong Ying,Rui Li,Siyao Cheng,Cheng Zhang,Wei Dong,Xihao Pan
Magnetic nanoparticle materials which could be used to remove tetracycline were confined seriously due to their poor stability and unsatisfactory reusability. Here, we facilely prepared novel zeolitic imidazolate framework-8 (ZIF-8) functionalized magnetic nanoparticles (Fe 3 O 4 @PDA-ZIF-8) adsorbent utilizing polydopamine as a bond to establish a connection between zeolitic imidazolate framework-8 and Fe 3 O 4 , which could improve the stability of magnetic nanoparticles and enhance the tetracycline adsorption capacity simultaneously. The prepared nanocomposites were characterized and their TC adsorption abilities under various experiment conditions (contact time, TC initial concentration and pH values) were also investigated. Experimental results proved that the prepared adsorbent showed superior TC adsorption capacities (92.01 mg/g at pH = 7). Further, the adsorption mechanisms were comprehensively studied and the prepared adsorbent showed satisfactory stability and reusability during the cycle experiment. Altogether, our findings provided a feasible way to design and construct functional magnetic MOF materials for enhancing tetracycline adsorption from wastewater.
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PubMed
高影响因子
FOOD CHEMISTRY
·
2022
·
IF 9.231
Jing Liu,Ninglong Zhang,Jiansen Li,Mingyang Li,Guangxian Wang,Wenli Wang,Yuxia Fan,Shui Jiang,Gaole Chen,Yin Zhang,Xia Sun,Yuan Liu
The bioelectronic tongues based on taste receptors have been emerging with human-like taste perception. However, the practical applications of the receptor-based biosensors were restricted by their narrow and low dynamic ranges. Here, a novel immobilization strategy based on [email protected] /Ti 3 C 2 MXene was developed to immobilize the umami ligand binding domain (T1R1-VFT), to fabricate an umami biosensor for umami substances detection. Through the synergic effect of [email protected] and Ti 3 C 2 MXene, the capacity to load T1R1-VFT was effectively increased, and the response signal was also amplified by approximately 3 times. The proposed biosensor showed an ultrawide dynamic range of 10 −11 –10 −3 M, and a high upper limit of detection, which was closer to the human taste threshold and suitable for detecting foods rich in umami substances. Additionally, the biosensor was successfully applied to detect real samples and analyze the synergistic effects of binary umami substances.
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高影响因子
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