Materials Research Express
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2019
·Vol. 6
·期 12
·125101
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IF 1.449
Kai Huang,Lin Lin Guo,Dong Fang Wu
Different from the traditional aldimine condensation reaction, N-containing ligand: pyridine-2-formaldehyde was selected as the source of aldehyde group, and NH2-MIL-53(Al) containing a large number of amino functional groups was took as the carrier, transition metal Cu2+ coordinated with N-containing ligand to prepare a new and more stable MOFs catalyst named Cu@Al-MIL-53-P21. The catalyst exhibited a cross-linked nanorod morphology. The effect of the morphology on the catalytic oxidation activity of styrene was studied, the results showed that the catalyst could not only promote the production of benzaldehyde, but also inhibit the production of benzoic acid and phenylacetaldehyde. In addition, the optimal reaction conditions and the reaction mechanism were also discussed in this paper.
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CHEMICAL ENGINEERING JOURNAL
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2019
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IF 8.355
Yanqin Wang,Huagao Wang,Jinhong Ye,Liyi Shi,Xin Feng
Magnetic quantum dot (QD)-like CoFe alloy@C nanocomposites derived from ZnCo-MOF using low-dimensional carbon as carriers for electromagnetic wave (EMW) absorption were successfully synthesized by in situ growth and pyrolysis. The resulting CoFe@C nanocomposites were homogeneously conjoined with different carbon supports such as two-dimensional (2D) reduced graphene oxide (rGO) and one-dimensional (1D) carbon nanotubes (CNT). Results indicated EMW absorption properties of CoFe@C were enhanced by introduction of rGO and CNT as carbon hosts for the construction of conductive networks due to the excellent impedance matching and electromagnetic attenuation. The rGO-supported CoFe@C composites annealed at 900 °C (rGO-CoFe@C-900) revealed a minimum reflection loss (RL min ) of −36.08 dB at the sample thickness of 3.0 mm and an effective bandwidth (RL < −10 dB) of 5.17 GHz at 3.5 m. Moreover, the CNT-supported CoFe@C nanocomposites pyrolyzed at 900 °C (CNT-CoFe@C-900) exhibited optimum EMW absorption performances due to the continuous 3D conductive networks, RL min of −40.00 dB with the thickness of 3.0 mm, and effective absorption bandwidth reached 5.62 GHz with a thickness of 2.0 mm. In particular, the specific reflection loss values of the resulting nanocomposites significantly preceded that of the reported similar dielectric-magnetic hybrids. In view of the superior EMW absorption properties, the as-fabricated low-dimensional carbon-supported magnetic quantum dot-like (QD-like) CoFe alloy@C composites will be utilized as ideal candidates for high-efficient EMW absorption.
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INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
·
2019
·
IF 3.375
Hua Song,Xiaojuan Li,Bolong Jiang,Mingyue Gong,Tianzhen Hao
A highly active and stable MOF-199-supported ionic liquid [Hnmp][H2PO4] (IL-NP) adsorbent (Py/MOF) was successfully synthesized and characterized via XRD, SEM and TEM, TG-DTG, FT-IR, BET, and XPS technologies. The effects of different sulfides and interfering components present in model oils on the adsorptive desulfurization (ADS) performance of Py/MOF were studied. The results show that the regular octahedron crystalline structure of MOF-199 was well preserved and IL-NP fixed on the surface of MOF-199 presented like a flower after grafting ionic liquid IL-NP. The Py/MOF showed highly ordered canals, which are larger than those of MOF-199. Upon introducing IL-NP to MOF-199, the ADS activities were improved, which can be attributed to the improved intimate contact between sulfur compounds and adsorbent, the additional adsorption acidic sites for slightly basic sulfur compounds, and the increased pore size with mesoporous pores appearing. The ADS activity of Py/MOF adsorbing different sulfides was in the order of DBT > BT > 3-MTP > TP > 2,5-DMTP, and the effect of interfering component on ADS performance of Py/MOF was in the order of cyclohexene > toluene > water > ethanol. After 4 times of regeneration, the DBT removal onto Py/MOF was still at 93.8%, which decreased by 4.9% as compared to that of the fresh adsorbent.
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APPLIED SURFACE SCIENCE
·
2019
·
IF 5.155
Yuexin Liu,Yanzhong Wang,Huiqi Wang,Peihua Zhao,Hua Hou,Li Guo
Due to the large specific surface area and potential redox sites, metal organic frameworks (MOFs) are considered as a promising electrode material for supercapacitors . However, the low electrical conductivity of MOFs impedes their application in supercapacitors. Here, the NiCo-MOF/acetylene black composites were facily fabricated by an ultrasonic method, in which acetylene black was uniformly distributed between NiCo-MOF nanosheets and formed a conductive network, thus improving the electrical conductivity of NiCo-MOF as well as hindering their aggregation. The as-obtained NiCo-MOF/acetylene black composites exhibit high specific capacitance of 916.1 F g −1 , remarkable rate capability and cycling stability compare to the pure NiCo-MOF. In addition, an asymmetrical supercapacitor were also constructed, which achieved a maximum energy density of 33.84 Wh kg −1 at a power density of 750 W kg −1 and good cycling stability with 85.25% of initial capacitance after 5000 cycles.
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SEPARATION AND PURIFICATION TECHNOLOGY
·
2026
·
IF 9.1
Heyuan Zhao,Jingwen Yang,Xiaoqian Wu,Zhihao Si,Yilin Zhao
Ce-UiO-66 was anchored on biochar to fabricate hierarchical porous BC@UiO-66-MOF with abundant sites for selective VFA capture. • The composite selectively adsorbs short-chain VFAs via multilayer chemisorption and allows recovery by ethanol-water elution. • Fixed-bed tests verify superior separation capacity and renderability with 83% initial capacity retained after five adsorption-desorption cycles. • Aspen Plus simulation establishes an industrial VFA separation process, and optimized distillation enables 97-98% VFA purification. • LCA and economic analysis confirm the integrated process is eco-friendly, low-cost, and scalable for kitchen-waste recycling. Volatile fatty acids (VFAs) derived from anaerobic fermentation of kitchen waste represent valuable biobased building blocks, yet efficient separation and recovery of VFAs from complex aqueous fermentation liquors remain a persistent bottleneck. Adsorption serves as a promising route for bioproduct enrichment, but conventional adsorbents suffer from insufficient uptake capacity, low selectivity, or poor structural robustness. To overcome the weak mechanical stability of bare metal–organic frameworks and the lack of specific recognition toward target pollutants of pristine biochar, we rationally fabricate a Ce-UiO-66-functionalized biochar composite named BC@UiO-66-MOF for selective VFA capture. Response surface methodology (RSM) was employed to optimize adsorption operational parameters, while a suite of characterizations including SEM, BET, in situ FTIR, XPS, and XRD verified the successful immobilization of Ce-UiO-66-MOF moieties on biochar scaffolds. We systematically unravel the intrinsic adsorption mechanisms toward various VFAs and further assess the practical applicability of this composite for the treatment of authentic fermentation wastewater. The as-prepared BC@UiO-66-MOF integrates the complementary merits of biochar and Ce-UiO-66-MOF, delivering synergistically boosted structural stability, abundant pore channels, and enhanced adsorption capacity, alongside markedly improved VFA selectivity and cyclic reusability relative to unmodified biochar. Density functional theory (DFT) calculations disclose that acetic acid exhibits stronger, thermodynamically more spontaneous adsorption interactions in high-polarity aqueous media compared to ethanol, verifying ethanol as an ideal desorption eluent. Fixed-bed dynamic adsorption tests reveal that the BC@UiO-66-MOF packed column exhibits a 28% longer breakthrough duration and 72% greater saturated adsorption capacity than commercial biochar (BC), highlighting its outstanding performance under continuous-flow operation. Complementary Aspen Plus process simulation coupled with life cycle assessment (LCA) further substantiates the ecological sustainability and economic viability of the proposed VFA recovery workflow, underscoring the great industrial translation potential of the BC@UiO-66-MOF adsorbent for valorizing organic waste-derived VFAs. Schematic diagram of carbon-neutral circular system for VFA recovery from kitchen waste fermentation wastewater, with adsorption schematic shown on the right. Download: Download high-res image (309KB) Download: Download full-size image Carbon-neutral circular system for VFA recovery from kitchen waste fermentation wastewater and the VFA adsorption mechanism of BC@UiO-66-MOF.
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APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING
·
2026
·Vol. 132
·期 10
·1019
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IF 3
Li Changxin,Jiang Shuqi,Li Boyang,Duan Xingxing,Sun Tianming,Liao Yuanwei,Xu Junjie,Yang Jinyu
Antibiotic residues, particularly tetracycline (TC), in aquatic environments pose a critical global challenge, demanding efficient and sustainable remediation solutions. Herein, a novel metal-organic framework (MOF)-derived ZnIn 2 S 4 photocatalyst (ZnIn 2 S 4 (MOF)) was successfully synthesized via a facile hydrothermal method, exhibiting significantly enhanced visible-light photocatalytic TC degradation performance. Compared to ZnIn 2 S 4 , the as-prepared ZnIn 2 S 4 (MOF) features a unique hierarchical morphology and optimized electronic structure. Comprehensive characterizations including XRD, XPS, SEM, BET, DRS, PL, TRPL, and transient photocurrent measurements were employed to elucidate its structural, optical, and photoelectrochemical properties. The ZnIn 2 S 4 (MOF) achieved an exceptional TC removal efficiency of 83% within 50 min under visible light. The enhanced activity is attributed to abundant active sites, improved light absorption with a narrowed bandgap of 2.14 eV, and suppressed charge recombination, as evidenced by prolonged average fluorescence lifetime and enhanced photocurrent density. Systematic investigations revealed significant influences of catalyst dosage, initial TC concentration, reaction temperature, and coexisting inorganic anions on degradation kinetics. Moreover, the catalyst demonstrated remarkable versatility toward multiple antibiotics. This work provides a rational design strategy for high-performance sulfide photocatalysts and insights into structure-activity relationships for emerging pollutant degradation.
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WATER SCIENCE AND TECHNOLOGY
·
2022
·Vol. 86
·期 10
·2642-2657
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IF 2.43
Xiao Shujuan,Lu Xiaohui,Liu Hui,Gu Jiantao,Yu Shouwu,Tan Xiaoyao
The synthesis of optimized thin film nanocomposite (TFN) membrane with no or few defects is an efficacious method which can improve nanofiltration performance. However, poor dispersion of fillers in the organic phase and wrong compatibility between fillers and polymerizate are still a serious problem. In this study, the particle size of metal organic framework (MOF), aluminum-based metal-organic frameworks (CAU-1) was modulated and for the first time, dodecyl aldehyde was used to modify the surface hydrophobicity of CAU-1, which improved the dispersibility and inhibited the aggregation in the trimesoyl chloride (TMC)/n-hexane solution; later CAU-1 and modified CAU-1 were incorporated into the polyamide (PA) selective layer to synthesize TFN membrane by interfacial polymerization (IP). The particle size modulation and modification of the CAU-1 were demonstrated by X-ray diffraction (XRD), scanning electron microscopy (SEM) and Fourier transform infrared (FTIR) characterization. The characterization showed that PA selective layer was synthesized on the top layer of polysulfone (PSF) substrate. The pure water flux of the TFN membrane was increased to 79.89 ± 1.24 L·m −2 ·h −1 ·bar −1 compared to the original thin film composite (TFC) membrane, which was due to the polymerization of 100 nm modified CAU-1 on the PA layer to form a new water molecular channel, thus increasing the water flux by about 70%. CAU-1 nanoparticles were modified with dodecyl aldehyde. CAU-1 and modified CAU-1 nanoparticles were used to prepare TFN membranes. The TFN membranes exhibit high water flux and high salt rejection.
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Advanced Science
·
2023
·
IF 15.1
Xinzhao Jiang,Wei Wang,Jincheng Tang,Meng Han,Yichang Xu,Lichen Zhang,Jie Wu,Yiyang Huang,Zhouye Ding,Huiwen Sun,Kun Xi,Yong Gu,Liang Chen
Although mitochondria are crucial for recovery after spinal cord injury (SCI), therapeutic strategies to modulate mitochondrial metabolic energy to coordinate the immune response and nerve regeneration are lacking. Here, a ligand-screened cerium-based metal-organic framework (MOF) with better ROS scavenging and drug-loading abilities is encapsulated with polydopamine after loading creatine to obtain microcapsules (Cr/Ce@PDA nanoparticles), which reverse the energy deficits in both macrophages and neuronal cells by combining ROS scavenging and energy supplementation. It reprogrames inflammatory macrophages to the proregenerative phenotype via the succinate/HIF-1α/IL-1β signaling axis. It also promotes the regeneration and differentiation of neural cells by activating the mTOR pathway and paracrine function of macrophages. In vivo experiments further confirm the effect of the microcapsules in regulating early ROS-inflammation positive-feedback chain reactions and continuously promoting nerve regeneration. This study provides a new strategy for correcting mitochondrial energy deficiency in the immune response and nerve regeneration following SCI.
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PubMed
高影响因子
INORGANIC CHEMISTRY
·
2023
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IF 4.6
Didi Dong,Xinyu Zhao,Chun Pu,Yao Yao,Bo Zhao,Ge Tian,Ganggang Chang,Xiaoyu Yang
Hybridization of metal–organic frameworks (MOFs) and homogeneous ionic liquids (ILs) endows the heterogeneous composite with high porosity and accessible multiple active sites (e.g., acidic or basic sites), which exhibits great potential in CO2 capture and conversion. Nevertheless, the majority of MOF composites are synthesized as powders, significantly restricting their practical applications due to inherent problems such as poor handling properties, high pressure drops, and mechanical instability. Thus, it is crucial to shape MOF composites into various monoliths that allow efficient processing, especially for industrial purposes. In this work, a hierarchical ILs@nanoMOF composite gel (H-IL@UiO-66-gel) featuring both intraparticle micropores and interparticle mesopores and multiple active sites was successfully fabricated by a two-step approach. Benefiting from the integrated advantages of the hierarchically porous MOF for enhanced mass transfer and affinity of ILs for activating CO2 molecules, the resultant H-IL@UiO-66-gel exhibits excellent uptake of macromolecules and catalytic activity toward CO2 cycloaddition with epoxides under moderate conditions, far beyond the traditional microporous IL@UiO-66-gel and unfunctionalized H-UiO-66-gel. Furthermore, the H-IL@UiO-66 composite monolith can be effortlessly separated and reused at least three times without depletion of catalytic activity. It is believed that this fabrication method for the shaping of MOF composites is highly versatile and can be extended to other types of MOFs for various application fields.
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JOURNAL OF DRUG DELIVERY SCIENCE AND TECHNOLOGY
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2026
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IF 5.2
Zhouli Wang,Weibo Kong,Lingtong Ge,Xiaoqin Yu,Quanfang Li,Weijun Chen,Lipeng Qiu
The clinical application of doxorubicin (DOX) is severely limited by its off-target toxicities and the emergence of chemoresistance when used alone. Herein, we engineered a chondroitin sulfate (CS)-targeted Mn-Fe bimetallic metal-organic framework nanoparticle loaded with DOX (SMFDC) that integrates chemotherapy and chemodynamic therapy (CDT) within a single platform. SMFDC exhibited uniform spherical morphology with a particle size of 164.5 ± 3.2 nm and a zeta potential of −9.11 ± 0.26 mV. The DOX encapsulation efficiency was 52.9 ± 3.54%, the drug loading capacity was 24.05 ± 1.4%, and the hemolysis rate was 1.08 ± 0.12%. The nanoparticle enabled pH/glutathione (GSH) dual-responsive release, achieving 60.33 ± 3.09% cumulative release of DOX within 60 h under simulated tumor microenvironment (TME) conditions (pH 5.0, 10 mM GSH). The released Mn 2+ /Fe 2+ ions efficiently catalyzed the Fenton/Fenton-like reaction to convert H 2 O 2 into hydroxyl radicals (·OH), while markedly depleting intracellular GSH and inducing potent oxidative stress. CS modification significantly enhanced cellular uptake in HeLa cells. In vitro antitumor evaluation showed that the half-maximal inhibitory concentration (IC 50 ) of SMFDC (DOX-equivalent) was 5.708 μg/mL, which was significantly lower than that of the unmodified SMFD group (12.849 μg/mL). Unlike previously reported Mn-Fe bimetallic MOFs used solely for CDT or CS-modified MOFs used only for targeting, this work integrates DOX loading, Mn-Fe bimetallic CDT, and CS-mediated active targeting into a single nanoplatform. This integrated design achieved synergistic chemotherapy-CDT, carrier-based pH/GSH dual-responsive release, and active tumor targeting, thereby enhancing CDT efficacy while overcoming the off-target toxicity and chemoresistance associated with DOX monotherapy. This strategy not only offers a promising paradigm for synergistic therapy but also provides a generalizable design principle for developing next-generation CDT-based combination nanomedicines. Download: Download high-res image (307KB) Download: Download full-size image
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INORGANIC CHEMISTRY COMMUNICATIONS
·
2023
·
IF 3.8
Yichong Chen,Jinbing Cheng,Aihua Wang,Congbin Liu,Hailong Yan,Yang Qiu,Zhongzheng Wang,Paul K. Chu,Yongsong Luo
Electrospinning is carried out to fabricate Ti 3 C 2 T x @Co nanocomposite films composed of 2D Ti 3 C 2 -encapsulated Co nanoparticles derived from Co-MOF precursors. The unique 1D nanochain structure inherits not only the high electrochemical activity, but also excellent electron and ionic conductivity. The Co nanoparticles with good conductivity and MXene with high electrochemical activity improve the electrochemical properties giving rise to high capacity and good cycling stability. The Ti 3 C 2 flakes partially accommodate the volume changes during Li + insertion/extraction and the electrospinning technique prevents self-aggregation of Ti 3 C 2 flakes and aggregation of ZIF-67 nanoparticles, consequently producing a larger surface area and more active sites on the flexible anode. As a result, the MXene/Co composite has excellent properties such as a high reversible capacity of 422 mA h g −1 after 500 charging-discharging cycles at a current density of 1 A/g and retained capacity of 177 mA h g −1 at a rate of 5 A/g. The materials and strategy have large potential in commercial energy storage devices.
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JOURNAL OF MEMBRANE SCIENCE
·
2023
·
IF 9.5
Mengmeng Lou,Jingzi Li,Xiaowei Zhu,Jingchao Chen,Xingran Zhang,Xiaofeng Fang,Fang Li
Photothermal membrane distillation (PMD) has the potential to address freshwater scarcity, but heat loss during heat transfer from the photothermal surface to the feed bulk inevitably lower the photothermal-vapor conversion efficiency of this process. The permeation of VOCs during PMD also threatens the recycling of distilled water. Herein, a zeolitic imidazolate framework-67 (ZIF-67) wrapped graphene membrane (ZGM) was developed and used for the PMD process. The results demonstrated that the hierarchical porous structure and low heat conductivity of ZIF-67 endowed the ZGM with improved light absorbance and heat localization, thus sustaining a high cross-membrane temperature gradient . Under simulated sunlight illumination, the ZGM attained an additional flux of 0.91 kg m −2 h −1 , corresponding to a photothermal efficiency of 62.1%, which was 183.2% higher than that of the pristine membrane. The temperature change near the photothermal coating was simulated, which showed that ZGM had slower heat conduction into the feed, demonstrating a confined heat effect. Meanwhile, the ZGM exhibited a good interception for phenol when peroxymonosulfate (PMS) was added to the hot feed. The distilled phenol concentration was 88.0% lower than that of the PMD without PS. Electron paramagnetic resonance (EPR) and radical quenching experiments verified that singlet oxygen ( 1 O 2 ) was the dominant reactive oxygen species during in-situ phenol degradation. This work provides a new strategy to develop advanced photothermal membranes to simultaneously promote the photothermal performance and VOC interception.
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危险品化学品经营许可证（带存储）