SOLID STATE SCIENCES
·
2022
·
IF 3.752
Xuejing Wang,Juan Xu,Sifan Liu,Wenwen Yang,Yanmei Chen,Yanhui Zhang
The research of metal organic frameworks materials of possessing semiconductor performance is important because they show great prospects on applications in wastewater treatment . In the current work, composites of TiO 2 / MOF-801(Zr) was prepared by a wet impregnation at room temperature , and a series of characterizations for catalysts, such as XRD , TEM , XPS, etc was investigated. The results of photocatalytic reduction of Cr(Ⅵ) under simulated solar light irradiation showed that 50%TiO 2 / MOF-801(Zr) exhibited better photocatalytic activity compared with other catalysts, which is attributed to synergistic effect including the interface enhancement effect and the enhancement of photogenerated carriers separation efficiency. The photocatalytic efficiency is as high as 98.1% when adjusting pH of reaction system to 1. It is most likely because the hydrogen cation concentration increased along with the increasing acidity, so that as to the promoting of reduction process of Cr(Ⅵ). In addition, we proposed a possible reaction mechanism of TiO 2 / MOF-801(Zr) composites for photocatalytic reduction of Cr(Ⅵ).
研究领域:
环境科学
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材料科学
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DOI
高影响因子
JOURNAL OF COLLOID AND INTERFACE SCIENCE
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2025
·
IF 9.7
Cuicui Li,Tongtong Gao,Wanzhen Wu,Xinpu Zhou,Shuyu Zhang,Guangpeng Ma,Xianfeng Guan,Shuang Wang
The development of low-cost membranes with high ion-selectivity is crucial for facilitating the practical application of vanadium redox flow batteries (VRFBs). In this study, sulfonated polybenzimidazole grafted with benzenesulfonic acid side chains was used as the polymer matrix, and fluorine-containing modified MOF-801 (FM) was incorporated to prepare a series of membranes for VRFB applications. The enhancement of proton conductivity and reduction of area resistance can be attributed to several factors: acid-base interactions, the microphase-separated structure of the grafted side chains, the intrinsic conductivity of MOF-801, and the extensive hydrogen-bonding network established through fluoride modification. Notably, the incorporation of fluorine or fluorine-containing groups into the hydrocarbon polymer matrix significantly improves its oxidative stability. The sPBI A5 -FM X membrane, with a FM content of 3 wt%, demonstrated the most remarkable overall performance, achieving a proton conductivity of 33.5 mS cm −1 at 30 °C and 100 % relative humidity (RH). At the same time, it has outstanding oxidation stability and excellent ion selectivity (5.23 × 10 6 S min cm −3 ). In addition, the sPBI A5 -FM 3 membrane exhibited excellent cell performance, with energy efficiency (EE) from 84.80 % to 86.50 % at current densities of 40–120 mA cm −2 . This study confirms the significant potential of fluoride-modified MOF-801 to enhance ion selectivity and provides an effective strategy for optimizing proton transport channels.
研究领域:
材料科学
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电化学
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能源存储
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DOI
PubMed
高影响因子
JOURNAL OF MEMBRANE SCIENCE
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2021
·
IF 8.742
Wenbo Chen,Zhenguo Zhang,Cancan Yang,Jing Liu,Hongcheng Shen,Kai Yang,Zhe Wang
In this work, we fabricated PIM-based mixed matrix membranes (MMMs) containing MOF-801/ionic liquid nanocomposites to enhance CO 2 separation performance of pure polymer membranes. All membranes and MOF-801/ionic liquid nanocomposites were prepared by solution casting method and wet impregnation, respectively. The samples were analyzed by SEM, XRD , FTIR, TGA and Nitrogen adsorption-desorption measurements. The nanocomposites are composed of metal-organic framework (MOF) MOF-801 and ionic liquid (IL) adsorption capacity. MOF-801 can well control the dispersion of IL in the polymer matrix , which is conducive to exposing more active sites in the nanocomposites to improve the CO 2 adsorption selectivity of MOF-801/ionic liquid nanocomposites. At the same time, the porous structure of nanocomposites also enhances the gas adsorption and diffusion, thereby improving the gas separation performance. Compared with pure PIM-1 membranes, the CO 2 permeability and CO 2 /N 2 selectivity of IL@MOF/PIM-5% MMMs was increased by 129% and 45% (CO 2 = 9420 Barrer, CO 2 /N 2 = 29）, respectively. Compared with MOF-801/PIM-1 MMMs, the permeability of CO 2 decreased slightly but the selectivity of CO 2 /N 2 increased from 27 to 29. The aging test showed that the CO 2 permeability of MMMs could remain above 70% after 90 days. The anti-plasticization performance of MMMs has also been significantly improved. The CO 2 separation performance of IL@MOF/PIM-5% MMMs significantly exceeded the 2008 Robeson upper bound, showing excellent gas separation performance and working stability.
研究领域:
材料科学
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化学工程
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环境科学
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DOI
高影响因子
BMC Chemistry
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2026
·Vol. 20
·期 1
·139
·
IF 5.1
Zhang Qiuyun,He Shijian,Hu Siyu,Zou Huixin,He Maozhen,Zhang Tingting,Deng Taoli,Cheng Jingsong,Zhang Yutao
Photocatalysts have offered a successful strategy for degrading organic pollutants, such as various dyes and antibiotics, in wastewater. In this study, the flower-like Bi 2 MoO 6 balls were impregnated on the zirconium-based MOFs (MOF-801) to construct the Bi 2 MoO 6 /MOF-801 heterojunction composite photocatalytic materials through a simple one-pot hydrothermal method. The systematically characterization of the as-synthesized composite materials was performed using various analytical techniques, including XRD, FTIR, SEM-EDS, N 2 adsorption⁃desorption testing, TG, XPS, UV-Vis DRS, PL, transient photocurrent, and EIS techniques, thereby confirming the successful impregnation of Bi 2 MoO 6 into MOF-801. The degradation effect of the Bi 2 MoO 6 /MOF-801 composites on rhodamine B (RhB) dye was investigated, along with the photocatalytic degradation mechanism. Results showed that 0.1-Bi 2 MoO 6 /MOF-801 has better degradation efficiency for RhB dye than that of pure Bi 2 MoO 6 and MOF-801 under visible light conditions, with a complete degradation efficiency of 98.1% achieved within 40 min. The boosted photocatalytic performance of the 0.1-Bi 2 MoO 6 /MOF-801 composite is attributed to their high specific surface area (529.2 m 2 /g) and mesoscale pore size (6.9 nm), wide visible spectral absorption, well-optimized band gap (2.81 eV), and the close contact of Bi 2 MoO 6 and MOF-801 ensuring efficient charge separation and suppressing the recombination of photogenerated electron-hole pairs. Visible-light driven photocatalysis of 0.1-Bi 2 MoO 6 /MOF-801 composite further confirmed superior degradation of MB, AO, CR, MO, and ARS dyes, reaching degradation efficiencies up to 99.7%. Moreover, the results of the free radical capture experiments confirmed that the holes ( h + ) and superoxide radicals (•O 2 − ), and electrons ( e − ) were the primary active substances during the degradation process, supporting the Z-scheme heterojunction charge transfer mechanism. This research study will point the direction for designing potential and affordable MOF-based heterojunction materials for the treatment of dye-contaminated wastewater. Graphical
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高影响因子
JOURNAL OF PHARMACEUTICAL AND BIOMEDICAL ANALYSIS
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2021
·
IF 3.935
Tianfeng Wan,Wenqing Li,Zilin Chen
A novel magnetic solid-phase extraction (MSPE) method based on metal organic framework-801 (MOF-801) modified magnetic nanoparticles (noted as PEI-MNPs@MOF-801) was successfully prepared for the extraction of preterm labor treatment drugs (including indometacin, acemetacin and sulindac) from human plasma sample. MOF-801, a new kind of porous coordination polymer composed of Zr 4+ and fumaric acid, was modified on the surface of synthesized polyethyleneimine magnetic nanoparticles (PEI-MNPs) through amidation reaction. The obtained PEI-MNPs@MOF-801 was characterized with Fourier-transformed infrared spectroscopy, X-ray photoelectron spectroscopy, X-ray diffraction and transmission electron microscopy. A MSPE-HPLC-UV method was developed by coupling PEI-MNPs@MOF-801 with HPLC system. Several parameters that affect the extraction efficiency including acetonitrile content, NaCl content, extraction time and sample volume were investigated. Under optimum conditions, the proposed MSPE-HPLC-UV method showed high extraction efficiency (enrichment factors between 96–118), good linearity with R ≥ 0.9987, excellent reproducibility (RSD ≤ 4.30 %) and low limits of detection in the range of 0.03−0.05 ng/mL. This method was also successfully applied to the extraction of indometacin, acemetacin and sulindac in human plasma samples and good recoveries were obtained.
研究领域:
分析化学
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药学
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DOI
PubMed
高影响因子
CHEMICAL PAPERS
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2026
·
IF 2.7
Gao Jun-Tao,Qi Wen-Da,Dou Xi-Meng,Liu Zheng-Chun,Li Na,Cao Feng
Water scarcity and water pollution are two major environmental issues facing all over the world. Membrane technology is an efficient and advanced wastewater treatment technology that has unique advantages in removing particulate matter, organic matter, microorganisms, and other pollutants. The present work report a high performance nanofiltration membrane for recycling and utilization of energy resources. The membrane was prepared by co-deposition dopamine and PEI in the PES based membrane as the intermediate layer, then spraying with different content of MOF-801. Subsequently, interfacial polymerization was carried out through piperazine and 1,3,5-benzenetricarbonyl trichloride. The obtained membrane was evaluated by testing the separation performance of Na 2 SO 4 , MgSO 4 , MgCl 2 and NaCl aqueous solution. FTIR, CA, XPS, SEM, AFM were carried out to analysis the physical and chemical structures of membranes. The effects of dopamine co deposition, nanomaterial content, salt type, stability and anti-pollution were investigated. Results shown that the membrane exhibits excellent water flux and rejection after modified with MOF-801. The addition of 2% nanofiller could achieve the optimum performance. The water flux for Na 2 SO 4 , MgSO 4 , MgCl 2 and NaCl were 21.19 L m −2 h −1 bar −1 , 21.11 L m −2 h −1 bar −1 , 22.18 L m −2 h −1 bar −1 , 25.74 L m −2 h −1 bar −1 , respectively. The membrane present great stability for the continuous test of 70 h. Additionally, the performance of membrane maintain a high water flux after three rounds of pollution and cleaning. This is the first time that MOF-801 has been used as an intermediate layer to prepare nanofiltration membranes, which providing new route for the preparation of high performance membrane.
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DOI
高影响因子
Environmental Science-Nano
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2022
·Vol. 9
·期 12
·4609-4618
·
IF 9.473
Zhihai Wu,Ziying Chen,Jia Chen,Xiaofeng Ning,Pinghua Chen,Hualin Jiang,Hongdeng Qiu
The widespread use of antibiotics seriously affects environmental safety and human health. The adsorption and degradation of antibiotics in water resources are particularly important for environmental protection and human health. In this work, we synthesized a new composite material with a metal–organic framework (MOF) and graphene oxide (GO) via one-pot solvothermal synthesis using zirconium oxychloride octahydrate, fumaric acid and GO. The structural characterizations and electrochemical tests of MOF-801/GO composites were carried out by X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), UV-vis diffuse reflectance spectroscopy (UV-vis DRS) and electrochemical impedance spectroscopy (EIS). Compared with MOF-801, the MOF-801/GO has a smaller electrochemical impedance, a narrower bandgap, and a nearly hundred times improvement in the transient photoresponse to visible light. In addition, the average pore size becomes larger and thermal stability is improved. This indicates that GO provided a good electron transport channel, suppressed the recombination rate of photogenerated electrons and photogenerated holes in MOF-801, and successfully improved the photocatalytic activity of MOF-801. The MOF-801/GO composites were used for the adsorption photocatalytic removal of tetracycline, and the removal efficiency was as high as 97% at 60 min, nearly 30% improvement over MOF-801, and the efficiency remained above 90% after three cycles. This work provides a new approach for the adsorption and photocatalytic degradation of tetracycline in water resources and a new idea for utilizing the good electrical conductivity of GO to enhance the photoelectric activity of MOF.
研究领域:
环境科学
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材料科学
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DOI
高影响因子
ChemistrySelect
·
2026
·Vol. 11
·期 23
·e73598
·
IF 2.3
Lijian Wang,Cong Yu,Junjie Bian,Xinbo Wang
The catalytic transfer hydrogenation (CTH) of furfural into furfuryl alcohol offers a promising route for the valorization of lignocellulosic biomass using liquid hydrogen donors instead of high-pressure H 2 . In this work, a defect-engineered MOF-801 catalyst with abundant Lewis acid sites was synthesized through a formic acid-regulated hydrothermal approach. Competitive coordination between formic acid and fumaric acid favors the nucleation and growth of MOF-801, and enhances the Lewis acidity of the catalyst. Characterization by FT-IR, XRD, SEM, and pyridine-IR confirmed the successful formation of MOF-801 with dominant Lewis acid centers. Using isopropanol as the hydrogen donor, the optimized reaction conditions (130°C, 2 h, 1.0 MPa N 2 ) achieved 99.5% furfural conversion and 94.4% furfuryl alcohol yield. Kinetic analysis demonstrated a first-order reaction with an apparent activation energy of 41.3 kJ·mol − 1 . The catalyst showed excellent recyclability and retained its crystallinity after five consecutive cycles. This study provides a simple and efficient method for constructing Lewis acidic MOFs with coordination unsaturated metal sites for biomass-derived CTH reactions, supporting an upgrading and transformation of platform molecules under hydrogen-free conditions. Graphical A defect-engineered MOF-801 catalyst with abundant Lewis acid sites is synthesized via formic acid modulation. The unsaturated Zr 4 + centers effectively activate both furfural and isopropanol, enabling efficient catalytic transfer hydrogenation to furfuryl alcohol under mild, hydrogen-free conditions with excellent recyclability.
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高影响因子
ADVANCED FUNCTIONAL MATERIALS
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2025
·
IF 19
Jiawei Liang,Deqi Fan,Chengkun Cai,Ziyi Su,Yi Lu
Atmospheric water harvesting (AWH) addresses freshwater scarcity, but most sorbents struggle with trade–offs between high moisture uptake, rapid desorption and low–energy regeneration. Herein, a multiscale composite is developed, integrating vertically aligned delignified wood (DW) microchannels, microporous MOF-801 domains, and a thermoresponsive poly (N-isopropylacrylamide)–MXene (PNIPAM–MXene) interface via interfacial synergy. The PNIPAM–MXene interface works dually, MXene’s high photothermal efficiency raises local temperature under solar light to trigger PNIPAM’s entropy–driven phase transition. This synergy switches wettability from hydrophilic to hydrophobic for water release, breaks water–matrix hydrogen bonds, and reduces desorption activation energy by ~19%. Under humid conditions, the composite has a water uptake of 0.82 g·g −1 , and releases ~93.9% of absorbed water under simulated solar irradiation. Molecular simulations confirm PNIPAM’s entropy–driven transition disrupts interfacial hydrogen bonds, promoting confined water expulsion. This strategy enables low–energy solar–driven AWH, with scalable potential for off–grid water production in arid regions, offering insights for designing multifunctional sorbents bridging high capacity and easy regeneration.
研究领域:
材料科学
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环境工程
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纳米技术
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能源材料
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功能高分子
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光热转换
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水资源管理
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产品关联
DOI
高影响因子
JOURNAL OF ENVIRONMENTAL MANAGEMENT
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2025
·
IF 8.4
Qixun Nian,Huayin Zhang,Kai Wang,Chunmin Wang,Qiuping Zhang,Qian Xu
The extensive use of antibiotics has led to the co-occurrence of multiple antibiotic classes in environmental water, necessitating efficient removal strategies. In this study, MOF-801@polydopamine@polyacrylonitrile nanofiber membranes (MOF-801@PDA@PAN NFMs) were synthesized via thermally initiated polymerization and layer-by-layer self-assembly for the simultaneous adsorption of 32 antibiotics from six major categories. Theoretical and experimental analyses confirmed rapid adsorption (within 10 min) through electrostatic attraction, hydrogen bonding, π-π interactions, and metal complexation. The membranes achieved removal efficiencies ranging from 39.22% to 98.83% and followed pseudo-second-order kinetics. Regeneration tests demonstrated stable performance over 15 reuse cycles. Compared to existing methods, these membranes offer broader-spectrum removal, higher efficiency, faster kinetics, and reduced adsorbent dosage. Additionally, they operate without pH or ionic strength adjustments and eliminate the need for post-treatment separation, highlighting their practical potential for environmental remediation. These findings offer a promising platform for scalable, cost-effective treatment of antibiotic-contaminated water.
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高影响因子
SENSORS AND ACTUATORS B-CHEMICAL
·
2025
·
IF 7.7
Meng Jin,Ge Gao,Zeyu Liu,Xiao Meng,Haiyan Wei,Wenwen Chen,Hui Pan,Mengping Zhang,Qiang Jia,Cuijuan Wang
Public concern regarding the illicit addition of diphenhydramine (DPH) to children’s cosmetics highlights the urgent need for robust point-of-use (POU) detection strategies. In addressing this concern, we present a surface-enhanced Raman scattering (SERS)-based method for rapidly identifying and quantifying DPH in children’s creams. Our approach utilizes a multifunctional sensor comprising a cellulose nanofibrils (CNFs) film modified with metal-organic framework-801 (MOF-801) and hedgehog-like gold nanoparticles (GHPs). The synthesized GHPs/MOF-801/CNF sensor functions as both a SERS-active substrate and a sorbent, leveraging abundant nanogaps and sharp tips of the GHPs to amplify SERS signals. The porous CNF and MOF-801 ensure efficient and selective extraction, while the SERS-active GHPs significantly enhance detection sensitivity. The correlation between SERS intensity and logarithmic concentration yielded R-values between 0.926 and 0.978, with the detection limit as low as 0.4 ppb, making it suitable for detecting prohibited DPH additives. This method was successfully applied to two brands of cream samples, with results closely aligning with those from routine chromatography. This method’s key advantage is its exceptional efficiency, completing the detection process within 11 min, making it a user-friendly POU assay for detecting prohibited additives in children’s cosmetics.
研究领域:
分析化学
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纳米生物技术
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食品安全
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药物监测
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环境健康
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产品关联
DOI
高影响因子
SEPARATION AND PURIFICATION TECHNOLOGY
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2026
·
IF 9
Diwen Xiao,Jiahao Cao,Hongjie Wang,Wenyi Dong,Fang Ma
Fluoride-containing wastewater pollution poses a serious threat to the global environment. Adsorption represents the most widely employed defluoridation process. Among various adsorbents, metal-organic frameworks (MOFs) demonstrate considerable potential. However, current zirconium-based MOFs for fluoride removal face challenges such as high cost, low adsorption capacity, insufficient mechanistic understanding, and difficulties in reuse due to the lack of stable immobilization methods. Herein, a zirconium‑cerium MOF (denoted as Zr/Ce-M) was prepared by doping MOF-801 with the low-cost metal cerium. At an initial F − concentration of 26 mg/L, its actual adsorption capacity reached 213 mg/g. This represents a 326% improvement compared to conventional MOF-801 and is 66% higher than the adsorbent with the highest known adsorption capacity.Further, zirconium/cerium MOF-based sponge (Zr/Ce-MS) was prepared via a simple method. Zr/Ce-MS exhibited exceptional loading stability under mechanical stress and solvent corrosion. Regeneration tests confirmed effective fluoride removal after eight cycles. Computational results revealed an upward shift in the d-band center of metals and enhanced electron-donating capability after Ce doping. Monodentate coordination (Zr F and Ce F) proved more stable than μ₂- or μ₃-bridging configurations. Strong hybridization occurred between Zr d/Ce d and F p orbitals, with Ce doping strengthening electron transfer from Zr to F − . The defluoridation mechanism of Zr/Ce-MS involves ion exchange, electrostatic interactions, hydrogen bonding, and Lewis acid–base complexation.This work provides new insights for developing fluoride adsorbents and mechanistic analysis.
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高影响因子
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