Journal of Environmental Chemical Engineering
·
2025
·
IF 7.2
Jiao Wang,Kexin Liu,Lei Shi,Jinshan Xie,Manman Zhao,Wulong Li,Zhanxiong Li
Metal-organic frameworks (MOFs) have exhibited great potential in various adsorption and separation fields, such as the adsorption of metal ions, separation of organic pollutants, and recovery of precious metals from aqueous-based matrices. Here, we prepared a series of sulfur-doping Zr-MOF-fabric composites by in-situ growth of zirconium metal ions with sulfur-containing organic ligands on the surface of carboxylated fabrics (CF-Ph-COOH). The formic acid (FA) regulated mercaptosuccinic acid (MSA) and 2,2’-dithiobisbenzoic acid (DTSA) Zr-MOF-fabric (CF-Zr-MSA-FA and CF-Zr-DTSA-FA) composites exhibit excellent Au 3 + adsorption from water with saturated adsorption capacities of 141.15 mg/g and 169.28 mg/g, respectively, and showing over 90 % adsorption removal rate in the pH range of 2–6, especially for CF-Zr-DTSA-FA could maintain more than 99.99 %. Most strikingly, the prepared MOF-fabric composites display excellent selective adsorption for Au 3+ in mixed solutions, and the selective adsorption efficiency of CF-Zr-MSA-FA and CF-Zr-DTSA-FA was up to 95.69 % and 85.37 %, respectively. Finally, the prepared MOF-fabric composites can be reused as filtering membrane for gold recovery, which also could provide a facile strategy to recover gold from water, and extending the practical applications of MOFs textile composite.
研究领域:
材料科学
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环境科学
·
化学工程
✓ 已验证
产品关联
DOI
高影响因子
CERAMICS INTERNATIONAL
·
2018
·
IF 3.057
Chao Xia,Caiyan Yu,Mengmeng Cao,Jinfeng Xia,Danyu Jiang,Guohong Zhou,Dafeng Zhang,Huili Li
In this work, a new Eu and Tb co-doped luminescent compound based on MOF-5, [Zn 4 O(BDC) 3 ], (named as compound 1 ) was successfully synthesized. The structure and morphology characterizations demonstrate that the initial framework of MOF-5 is retained well after co-doping Eu and Tb. The systematic investigations of photoluminescence behaviors reveal that the heat-treated compound 1 (called as compound 1a ) can be utilized as a multi-channel readout luminescent thermometer in emission intensity ratio, decay time ratio, and luminescence color. It simultaneously exhibits the excellent repetitiveness and reversibility under high temperature region from 303 to 473 K. The relative sensitivity of 1.8%/K at 473 K is much higher than the best one of 1.19%/K previously reported for the mixed-lanthanide MOF Tb 0.8 Eu 0.2 BPDA. Until now, such a ratiometric luminescent thermometer with a high sensitivity at the temperature as high as 473 K has been rarely explored.
研究领域:
材料科学
·
光学
✓ 已验证
产品关联
DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2024
·
IF 13.3
Jingye Zhao,Ping Li,Qi Zhang,Zhilu Ye,Yijing Wang,Jingyu Tian,Zhe Xu,Niancai Peng,Hui Ren,Xiaohui Zhang
The concentration of nitric oxide (NO) in exhaled breath is linked to respiratory diseases, requiring precise detection. Traditional two-dimensional (2D) carbon-based materials used in chemiresistive gas sensors suffer from high detection limits due to a lack of functional sites, while metal oxide sensors are limited by poor selectivity and high operating temperatures, restricting their development. Recently, metal–organic frameworks (MOFs) have emerged as an effective material for NO monitoring due to their superior selectivity; however, their inherent insulating properties hinder practical use. In this study, we synthesized Ni, Co-MOF-74-Carbon Nanotube (CNT) heterostructured nanoflowers, leveraging their bimetallic active sites and large specific surface area to enhance NO adsorption. This composite material, integrated with breathable nanofibrous membranes through physical deposition, exhibits high selection to NO, achieving a linear response range of 30 to 1000 ppb at room temperature and a limit of detection (LOD) of 18.6 ppb. This sensor can accurately detect NO levels in the exhaled breath of both healthy and diseased individuals, confirming its potential for respiratory disease diagnosis. Additionally, we developed a portable device integrating the Ni, Co-MOF-74-CNT-polyacrylonitrile (PAN) membrane, a microcontroller unit (MCU), and a Bluetooth module for real-time NO detection. The systematic design and successful validation of this portable gas sensor pave the way for future home-based real-time monitoring of airway inflammation.
研究领域:
材料科学
·
医学诊断
·
传感器技术
✓ 已验证
产品关联
DOI
高影响因子
CHEMICAL ENGINEERING SCIENCE
·
2025
·
IF 4.3
Rui Zhang,Xiaohe Tian,Hongyi Wan,Xiangyu Liu,Keming Zhang,Haishan Huan,Tianhe Gu,Yueyangchao Yu,Shaofei Wang
Antibiotic desalination is a crucial purification process that selectively removes salts from antibiotic-containing streams to enhance product stability and reduce downstream processing costs. While 2D metal–organic framework (MOF) membranes offer molecular sieving potential, their aqueous instability due to weak van der Waals stacking limits practical implementation. We address this chemical engineering challenge via electrostatically dominated assembly of positively charged ZnBDC-NH 2 MOF nanosheets (+40 mV) and negatively charged MXene (−25 mV). This strategy synergizes MOF’s size-exclusion pores with MXene’s fast water-transport nanochannels, while interfacial hydrogen bonding enhances structural robustness. The optimized membrane achieves exceptional antibiotic desalination performance: 97.59 % chloramphenicol rejection and an unprecedented water permeance of 269.3 L m −2 h −1 bar −1 , while maintaining stability over 120 h. At a comparable antibiotic rejection level, this water permeance is approximately 5–10 times higher than that of most previously reported membranes. Crucially, it demonstrates superior antibiotic/salt selectivity and maintains performance across varied feed concentrations. This work establishes a scalable electrostatic assembly platform for next-generation membranes in practical antibiotic wastewater treatment.
研究领域:
化学工程
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材料科学
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膜技术
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水处理
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纳米技术
✓ 已验证
产品关联
DOI
高影响因子
ACS Applied Materials & Interfaces
·
2024
·
IF 8.3
Liwei Hou,Xinyue Xu,Zhoujun Zhong,Fengchun Tian,Li Wang,Yi Xu
The demand for the detection of ultralow concentrations of ammonia gas is growing. A bimetallic metal–organic framework (MOF) comprising Prussian blue analogs (PBAs) was used to achieve highly sensitive and stable detection of ammonia gas at room temperature in this study. First, PB was enriched by using ammonia for improved gas sensing properties. Second, a sensitive membrane with more vacancies was formed by partially replacing Fe3+ with Cu2+ through a cation-exchange strategy. Finally, a capacitive sensor was developed for ultralow-concentration ammonia detection using a Cu–Fe PBA sensitive membrane and interdigitated electrodes (IDEs). To investigate the adsorption efficiency of the designed composite sensitive film for ammonia, PBAs nanoparticles were deposited on a quartz microcrystal balance (QCM) via cyclic voltammetry and a hydrothermal method. Approximately 10 ppm of ammonia was adsorbed under 1 atm by the Cu–Fe PBA film prepared using a reaction time of 36 h, and the adsorption efficiency was measured to be 2.2 mmol g–1 using the QCM frequency response. The Cu–Fe PBAs were also tested using scanning electron microscopy, transmission electron microscopy, X-ray diffraction, and Brunauer–Emmett–Teller theory. The introduction of Cu2+ ions significantly increased the specific surface area of Cu–Fe PBAs MOF, and the number of adsorption sites for ammonia also increased; however, its skeleton structure remained similar to that of PB. Then, the capacitive sensor based on Cu–Fe PBA sensitive membrane and IDE was fabricated and the gas sensing detection device was established for ammonia detection. Overall, the developed capacitive sensor exhibits a linear response of 75–1000 ppb and a detection limit of 3.8 ppb for ultralow ammonia concentrations, which makes it superior to traditional detection methods and thus allows excellent application prospects.
研究领域:
材料科学
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化学传感器
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环境监测
✓ 已验证
产品关联
DOI
PubMed
高影响因子
COMPOSITES COMMUNICATIONS
·
2025
·
IF 7.7
Huaxu Song,Zhenlu Li,Yean Li,Jingying Hou,Jinya Sun,Yishun Xie,Xiaohui Zhang,Xin Fan
The enhancement of electrochemical performance in supercapacitors is significantly dependent on the development of electrode materials characterized by optimized morphology and size. Fe 2 O 3 is a promising material among various candidates, but its practical applications are hindered by internet challenges such as poor conductivity. In this study, Fe-MOF was employed as a precursor template for synthesizing Fe 2 O 3 , and polyvinylpyrrolidone (PVP) was introduced to regulate crystal growth. This approach led to the successful synthesis of Fe 2 O 3 particles with three distinct morphologies. The MFO-2 material, characterized by a large surface area, exhibited an impressive specific capacitance of 96.8 mAh g -1 at a current density of 1 A g -1 . To further explore its practical application, an asymmetric supercapacitor was assembled with MFO-2 as the negative electrode and super-activated carbon (AC) as the positive electrode. The resulting AC//MFO-2 supercapacitor demonstrated a maximum energy density of 20.12 Wh kg -1 at a power density of 140 W kg -1 . It retained 90.5% of its capacity after 10000 charge-discharge cycles at 2 A g -1 , confirming its excellent cycling stability. Additionally, the two devices were connected in parallel and successfully powered an LED light, providing strong evidence for the practical applicability of the proposed system.
研究领域:
材料科学
·
能源存储与转换
✓ 已验证
产品关联
DOI
高影响因子
ANALYTICAL CHEMISTRY
·
2014
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IF 5.825
Zhuomin Zhang,Yichun Huang,Weiwei Ding,Gongke Li
Ethylene, an important plant hormone, is of utmost importance during many developmental processes of plants. However, the efficient enrichment and analysis of trace ethylene still remains a challenge. A simple and mild multilayer interparticle linking strategy was proposed to fabricate a novel hybrid MOF-199 enrichment coating. Strong chemical interparticle linkages throughout the coating improved the durability and reproducibility of hybrid MOF-199 coating dramatically. This coating performed a significant extraction superiority of ethylene over commonly used commercial coatings, attributed to the multiple interactions including “molecular sieving effect”, hydrogen bonding, open metal site interaction, and π–π affinity. The hybridization of multiwalled carbon nanotubes (MWCNTs) with MOF-199 further improved the enrichment capability and also acted as a hydrophobic “shield” to prevent the open metal sites of MOF-199 from being occupied by water molecules, which effectively improved the moisture-resistant property of MOF-199/CNTs coating. Finally, this novel enrichment method was successfully applied for the noninvasive analysis of trace ethylene, methanol, and ethanol from fruit samples with relatively high humidity. The low detection limit was 0.016 μg/L for ethylene. It was satisfactory that trace ethylene could be actually detected from fruit samples by this noninvasive method. Good recoveries of spiked grape, wampee, blueberry, and durian husk samples were obtained in the range of 90.0–114%, 79.4–88.6%, 78.5–86.8%, and 85.2–105% with the corresponding relative standard deviations of 4.8–9.8%, 6.9–8.9%, 3.8–8.1%, and 9.3–10.5% (n = 3), respectively.
研究领域:
植物学
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分析化学
✓ 已验证
DOI
PubMed
高影响因子
Nanomaterials
·
2025
·Vol. 15
·期 4
·279
·
IF 4.3
Yuning Li,Xinya Wang,Weiqiu Huang,Xufei Li,Ping Xia,Xiaochi Xu,Fangrui Feng
Membrane technology has been widely used in industrial CO2capturing, gas purification and gas separation, arousing attention due to its advantages of high efficiency, energy saving and environmental protection. In the context of reducing global carbon emissions and combating climate change, it is particularly important to capture and separate greenhouse gasses such as CO2. Zr-MOF can be used as a multi-dimensional modification on the polymer membrane to prepare self-assembled MOF-based mixed matrix membranes (MMMs), aiming at the problem of weak adhesion or bonding force between the separation layer and the porous carrier. When defective UiO-66 is applied to PVDF membrane as a functional layer, the CO2separation performance of the PVDF membrane is significantly improved. TUT-UiO-3-TTN@PVDF has a CO2permeation flux of 14,294 GPU and a selectivity of 27 for CO2/N2and 18 for CO2/CH4, respectively. The CO2permeability and selectivity of the membrane exhibited change after 40 h of continuous operation, significantly improving the gas separation performance and showing exceptional stability for large-scale applications.
研究领域:
材料科学
·
环境科学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
VACUUM
·
2025
·
IF 3.9
Penggen Chen,Jianhao Wang,Xingyue Lu,Li-An Ma,Qiong Liu,Lizhen Liu,Xiaoyun Ye,Qianting Wang
To address the growing need for high-performance microwave absorbing materials in modern communication and radar technologies, this study proposes a hierarchical heterostructured engineering strategy to integrate multiple loss mechanisms and optimize electromagnetic wave absorption. The hierarchical heterostructured C/TiO 2 /Ni@C composites were constructed via in situ hydrothermal synthesis combined with high-temperature calcination. The microwave absorption properties of the composite can be tuned by adjusting the MXene doping level and pyrolysis temperature. The TiO 2 /C framework derived from MXene and porous Ni@C microspheres derived from Ni-MOF enhance dielectric losses (interfacial polarization and dipole relaxation). The precipitated Ni magnetic nanoparticles improve magnetic losses. Compared with traditional microwave absorbing materials such as single-phase carbon or metal oxides, the C/TiO 2 /Ni@C-2 composite thermally decomposed at 600 °C exhibits excellent microwave absorption properties with an optimal reflection loss of −57 dB at a thickness of 4.26 mm and a frequency of 7.1 GHz. Upon optimization to a thickness of 2.16 mm, its effective absorption bandwidth (EAB) extends to 5.34 GHz (12.43–17.77 GHz), thereby fully encompassing the Ku band. The exceptional microwave absorption performance is attributed to its distinctive magnetic-dielectric layered architecture, heterointerface synergy, and optimized impedance matching, offering critical insights for designing next-generation broadband microwave absorbers.
研究领域:
材料科学
·
电磁学
✓ 已验证
产品关联
DOI
高影响因子
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
·
2022
·
IF 9.463
Mei Wan,Congling Shi,Xiaodong Qian,Yueping Qin,Jingyun Jing,Honglei Che,Fei Ren,Jian Li,Bin Yu
In this study, three-dimensional flower-like Ni-MOFs were fabricated and successfully functionalized on multi-terminal lamellar MXene (Ti 3 C 2 T x ) by solvothermal method, and their flame retardant application in thermoplastic polyurethanes (TPU) was investigated. As expected, the addition of Ni-MOF@Ti 3 C 2 T x can improve the flame retardancy and smoke suppression properties of TPU. The heat release rate, the smoke release rate, total smoke production, CO and CO 2 release of the composite with only 1 wt% MOF@Ti 3 C 2 T x were significantly reduced by 15%, 44%, 26%, 18%, and 8%, respectively. Furthermore, the carbon residues of TPU/Ni-MOF@Ti 3 C 2 T x composites were about 2–5 times that of pure TPU, indicating that the Ni-MOF@Ti 3 C 2 T x can inhibit the thermal degradation of TPU. The mechanism illustrated that the excellent fire safety properties of TPU/Ni-MOF@Ti 3 C 2 T x composites are due to the physical barrier, catalytical carbonization, and gas-phase flame retardant of Ni-MOF@Ti 3 C 2 T x . In this work, the dispersity, thermal stability, and flame retardancy of MXene were improved due to the modification of MXene with Ni-MOF by chemical bonding and physical adsorption, which can broaden the range of applications of MOFs .
研究领域:
材料科学
·
化学工程
✓ 已验证
DOI
高影响因子
PROCESS SAFETY AND ENVIRONMENTAL PROTECTION
·
2024
·
IF 6.9
Wenli Wu,Lei Feng,Wei Tan,Liqin Han,Qunfeng Yue,Feng Zhang,Xiaoqiang Liang
The rich activated protons and effective proton-conducting paths are of importance to improve conductivities of conductors. Herein, a series of Brönsted acids as proton carrier and proton transfer sites is introduced into the highly stable MOF , contributing to create plentiful hydrogen bonds within frameworks. Consequently, the trifluoromethanesulfonic acid-embedded JUC-1000 ([Cu 24 (BDPO) 12 (H 2 O) 12 ]) displays the relatively highest conductivity of 7.04 × 10 −4 S cm −1 under ∼98% RH and 328 K, ∼16 times that of JUC-1000 (4.47 × 10 −5 S cm −1 ). When TMSA@JUC-1000 (TMSA = CF 3 SO 3 H) blended with chitosan (CS), the proton conductivity of TMSA@JUC-1000/CS-15 is the highest at ∼76% RH and 328 K (1.01×10 −2 S cm −1 ), which is six times higher than that of JUC-1000/CS (1.85×10 −3 S cm −1 ). The CS contains abundant –NH 2 and –OH groups as proton jumping sites, which would activate the –NH– or –OH bonds of JUC-1000 and the acidic groups in Brönsted acids . These would result in an increased content of activated protons and effective formation of H-bonding nets by acid-base interactions. The findings provide valuable insights into the potential application of MOFs materials in energy devices.
研究领域:
材料科学
·
化学工程
✓ 已验证
产品关联
DOI
高影响因子
Petroleum Science
·
2025
·
IF 6.1
Chi Li,Ji-Xiang Guo,Li Wang,Wen-Long Zhang,Peng-Cheng Xue,Chen-Hao Gao
China possesses abundant heavy oil resources, yet faces challenges such as high viscosity, underdeveloped production technologies, and elevated development cost. Although the in-situ catalytic viscosity-reduction technology can address certain technical, environmental, and cost problems during the extraction process, the catalysts often suffer from poor stability and low catalytic efficiency. In this study, a green and simple room-temperature stirring method was employed to synthesize a class of highly efficient and stable 2D MOF catalysts, which possess the capability to conduct in-situ catalytic pyrolysis of heavy oil and reduce the viscosity. Under the condition of 160 °C, a catalyst concentration of 0.5 wt%, and a hydrogen donor (tetralin) concentration of 2 wt%, the viscosity-reduction rate of Fe-MOF is as high as 89.09%, and it can decrease the asphaltene content by 8.42%. In addition, through the structural identification and analysis of crude oil asphaltenes, the causes for the high viscosity of heavy oil are explained at the molecular level. Through the analysis of catalytic products and molecular dynamics simulation, the catalytic mechanism is studied. It is discovered that Fe-MOF can interact with heavy oil macromolecules via coordination and pore-channel effects, facilitating their cracking and dispersal. Furthermore, synergistic interactions between Fe-MOF and the hydrogen donor facilitates hydrogenation reactions and enhances the viscosity-reducing effect. This study provides a novel strategy for boosting heavy oil recovery and underscores the potential of 2D MOFs in catalytic pyrolysis applications.
研究领域:
石油工程
·
催化化学
✓ 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）