SEPARATION AND PURIFICATION TECHNOLOGY
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2025
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IF 9
Haike Li,Zhiyun Kong,Huan Zhang,Xiaolei Wang,Xin Wei,Ruichao Yang,Xueyi Zhang
Organic solvent nanofiltration (OSN) membranes are suitable for separating drugs from solvents, especially heat-sensitive drugs. However, the trade-off effect between permeance and rejection limits the effective utilization of OSN membranes. In this study, a gel OSN membrane with high permeability-selectivity was prepared by bridging sodium alginate (SA) with HKUST-1 and then cross-linking with Ca 2+ ions. The interspersed distribution of HKUST-1 among the flexible polymer chains results in three-dimensional pores of the gel membrane, which enriches the solvent transport channels. Meanwhile, SA is cross-linked by Cu 2+ from HKUST-1 and Ca 2+ , which densifies the pore structure and enhances the solute rejection of the gel membrane. When the concentrations of HKUST-1, SA, and Ca 2+ are 2.5 wt%, the gel membrane (HKUST-1 2.5% -CaSA) has strong hydrophilicity (11.1°), a small pore size (0.59 nm), and a relatively high porosity (56.89 %). The ethanol permeance of the HKUST-1 2.5% -CaSA gel membrane reaches 43.8 L·m −2 ·h −1 ·bar −1 , with a tracycline (TC) rejection as high as 97 %. Moreover, the HKUST-1 2.5% -CaSA gel membrane is capable of achieving high rejection of TC in other organic solvents (acetone, ethyl acetate, and isopropanol). Even after being immersed in non-polar (n-hexane) and polar solvents (N,N-dimethylformamide, isopropanol, ethanol) for a period of 20 days, the separation performance of the gel OSN membrane remains consistent, confirming the excellent solvent resistance and potential in drug separation and solvent recovery.
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DOI
高影响因子
FUEL
·
2018
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IF 4.908
Wenlei Xie,Fei Wan
The main purpose of this present work is to fabricate a magnetically recyclable solid catalyst for the production of biodiesel to meet the demand of green and clean production. To accomplish this, the core–shell structured Fe 3 O 4 @HKUST-1 composites with a magnetic core and a porous metal-organic framework shell were fabricated by using a versatile Layer-by-Layer assembly method, and then basic ionic liquids were encapsulated within the core–shell magnetically responsive material, resulting in a solid hybrid base catalyst. Various techniques such as XRD, TEM, FT-IR, VSM and nitrogen adsorption–desorption were employed to characterize the as-prepared solid base catalyst. The characterization results revealed that Fe 3 O 4 nanoparticles were well coated with metal-organic framework HKUST-1 with the formation of core–shell structured nanocomposites, and moreover the basic ionic liquid had been successfully encapsulated within the magnetic nanocomposites. Furthermore, the solid base catalysts possessed superparamagnetic behavior and high saturation magnetization, allowing them to be facilely separated from the reaction mixture by using an external magnetic filed. The solid base catalyst appeared to be an efficient and environmentally benign catalyst for the transesterification of soybean oil with methanol for the production of biodiesel, giving 92.3% oil conversion to methyl esters within 3 h with a catalyst loading of 1.2 wt% and a methanol/oil molar ratio of 30:1 at reflux temperature of methanol. The solid catalyst could be readily recovered by simple magnetic decantation and reused for several times without significant degradation in its catalytic activity.
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DOI
高影响因子
Materials Today Energy
·
2024
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IF 9
Xiaotong Liu,Zheng Han,Siying Zhao,Haoqing Tang,Tian Tian,Qiang Weng,Xiaohuan Liu,Tao Liu
Aqueous zinc-ion batteries (AZIBs) are considered to be one of the alternatives for large-scale energy storage devices due to unique advantages. However, the harmful Zn dendrites generation of Zn anodes seriously hinders the development of AZIBs. Herein, Cu 3 (BTC) 2 (HKUST-1) as a compact functional interface layer on the surface of bare Zn foil is shown to improve the reversibility of Zn-plating/stripping process. Interestingly, HKUST-1 possesses high porosity, large number of water molecule vacancies, and Cu active center, which help to enhance the diffusion kinetics of Zn 2+ and reduce the surface free energy of Zn electrode. Combining theoretical calculations with experiments, the HKUST-1 can contribute to the desolvation process of Zn[(H 2 O) 6 ] 2+ and balance Zn 2+ concentration, which thus accelerate Zn 2+ transfer kinetics, lower interfacial energy, and homogenize ion-distribution. Attributed to these superiorities, the HKUST-1@Zn symmetric cells demonstrate excellent stable plating/stripping for over 250 h under ultra-high current density (20 mA/cm 2 and 20 mAh/cm 2 ). Furthermore, a HKUST-1@Zn||MnO 2 full cell exhibits an enhanced long-cycling performance with a discharge capacity of 114 mAh/g after undergoing 500 cycles. All results demonstrate the potential application of HKUST-1 coating in AZIBs.
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DOI
高影响因子
IEEE SENSORS JOURNAL
·
2025
·
IF 4.5
Ziheng Zhi,Fangrong Hu,An Su,Mingzhu Jiang,Wenying Jiang,Longhui Zhang,Zhongpeng Gao,Weiyu Luo,Chengju Meng
P-Xylene is a prevalent indoor hazardous volatile organic compound(VOC). A long-term exposure limit of 100 ppm for p-xylene is generally recommended. Therefore, sensitive and selective detection of trace p-xylene is crucial. This work presents a method for detecting p-xylene gas by combining terahertz (THz) metasurface sensor with a metal-organic-framework (MOF) material, copper benzene-1,3,5-tricarboxylate (HKUST-1). The sensor with double split ring resonators is fabricated using a micromachining process and characterized by a terahertz time-domain-spectroscopy (TDS) system. The test results are consistent with the simulation. Subsequently, the sensor's surface is modified using the MOF material of HKUST-1 to enhance its sensitivity to the p-xylene gas. At room temperature, the sensitivity for p-xylene gas concentrations is between 1-100 ppm .The modified sensor has a maximum response frequency shift of 14 GHz for p-xylene gas at 100 ppm. Furthermore, the specificity, repeatability and stability of the sensor are characterized. The proposed method for highly sensitive and specific detection of p-xylene gas has important reference significance for the development of other types of gas sensors.
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DOI
高影响因子
iScience
·
2021
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IF 5.458
Dejun Zeng,Liyong Yuan,Pengcheng Zhang,Lin Wang,Zijie Li,Youqun Wang,Yunhai Liu,Weiqun Shi
HKUST-1@CMC (HK@CMC) composites that show good acid and alkali resistance and radiation resistance were successfully synthesized by introducing carboxymethyl cellulose (CMC) onto the surface of HKUST-1 using a foaming strategy. For the first time, the composites were explored as efficient adsorbents for U(VI) trapping from aqueous solution, with encouraging results of large adsorption capacity, fast adsorption kinetics, and desirable selectivity toward U(VI) over a series of competing ions. More importantly, a hybrid derivative film was successfully prepared for the dynamic adsorption of U(VI). The results show that ∼90% U(VI) can be removed when 45 mg L −1 U(VI) was passed through the film one time, and the removal percentage is still more than 80% even after four adsorption-desorption cycles, ranking one of the most practical U(VI) scavengers. This work offers new clues for application of the Metal-organic-framework-based materials in the separation of radionuclides from wastewater.
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DOI
PubMed
高影响因子
CHINESE JOURNAL OF CHEMICAL ENGINEERING
·
2026
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IF 3.5
Yuxin Zhu,Jiaxing Li,Lielin Xiang,Liang He,Chao Su,Zhong Li,Mohamed Mamlouk,Mindrov K. Anatolyevich,Tao Wei
Based on the confinement of the ionic liquid (IL) within the HKUST-1 metal–organic framework (MOF), this work successfully developed a novel gel polymer electrolyte (HKU-5), for room-temperature (RT) quasi-solid lithium metal batteries. X-ray diffraction (XRD), scanning electron microscopy (SEM), N 2 adsorption-desorption isotherm analysis and different electrochemical characterizations were carried out. In Li|Li symmetric cells, HKU-5 enables stable lithium plating/stripping for over 800 hours (0.1 mA·cm –2 ) and effectively suppresses lithium dendrite growth. When assembled Li|LiFePO 4 full cells using HKU-5 as the separator, it exhibits excellent cycling stability and interfacial compatibility, retaining a discharge specific capacity of 151.2 mA·h·g –1 for 100 cycles at 0.5 C and RT. This study presents a promising IL@MOF-based strategy for developing next-generation electrolytes toward practical lithium metal batteries. Based on the confinement of the ionic liquid (IL) within the HKUST-1 metal–organic framework (MOF), this work successfully developed a novel gel polymer electrolyte (HKU-5), for room-temperature all-solid-state lithium metal batteries. Download: Download high-res image (253KB) Download: Download full-size image
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DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2026
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IF 12.5
Liuqing Chen,Xiuhong Meng,Huibo Qin,Xiao Ling,Zebing Bao,Zhiqiang Xie,Xinping Ouyang,Linhai Duan
The coupling of liquefied natural gas and adsorbed natural gas charging (LNG-ANG) can effectively recover boil-off gas, with the key challenge being the development of efficient and stable adsorbents under cryogenic conditions (∼159 K). HKUST-1 is regarded as a promising methane adsorbent due to its abundant microporous structure and high specific surface area. However, its practical application is largely limited by water instability. After exposure to humid air for 10 days, the pristine HKUST-1 lost 68.17% of its specific surface area and 30.77% of its methane uptake capacity. Herein, we successfully prepared a water-stability-enhanced HKUST-1-PVP composite by grafting polyvinylpyrrolidone (PVP) onto the coordinatively unsaturated metal sites of HKUST-1. Among the samples, HKUST-1-P2 maintained a high specific surface area of 1242 m 2 g −1 (a loss of only 3.27%) and essentially unchanged methane uptake capacity even after exposure to humid air for at least 70 days. Furthermore, under LNG-ANG adsorption conditions (159 K, 6 bar), the methane uptake capacity of HKUST-1-P2 reached 234 cm 3 (STP) cm −3 , which is 2.6 times that of HKUST-1. These results indicate that the PVP modification strategy significantly enhances the structural stability of HKUST-1 and further stabilizes its methane adsorption performance. Computational simulations revealed that PVP grafting onto unsaturated Cu sites creates a barrier that blocks water access, thereby effectively enhancing the material's water stability. This work not only provides a simple and effective strategy for constructing water-stable MOF adsorbents but also advances the practical application of HKUST-1 materials in LNG-ANG technology.
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DOI
高影响因子
POLYMER
·
2022
·
IF 4.432
Yuxin Zhang,Kunmei Su,Maliang Zhang,Zhenhuan Li
In order to improve the permeability and desalination performance of the thin-film nanocomposite (TFN) membranes supported by polyphenylene sulfide ( PPS ), the polydopamine (PDA) modified HKUST-1 (mHKUST-1) nanocomposite materials were added into polyamide ( PA ) functional layer. The mHKUST-1 nanoparticles with good dispersity and chemical compatibility were successfully embedded in PA layer to develop a new negative charged nanofiltration membrane . The optimized PPS/ [email protected] membrane showed an excellent permeability of up to 27.35 L∙m −2 h −1 ∙bar −1 , twice as much as the [email protected] membranes. Meanwhile, the considerable rejection performance of 91.67% to MgSO 4 and 90.06% to Na 2 SO 4 at 4 bar was mainly up to the repulsive effect of negative charge on membrane surface. Moreover, the PPS/ [email protected] membranes also has stable filtration performance under long time operation. The results suggested that the membrane modification method in this work have great potential for applications in desalination.
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DOI
高影响因子
CARBOHYDRATE POLYMERS
·
2020
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IF 7.182
Qun Liu,Haihuan Yu,Fanming Zeng,Xiao Li,Jing Sun,Chun Li,Hai Lin,Zhongmin Su
A novel composite HKUST-1/cellulose/chitosan aerogel (HKUST-1/CCSA) as an efficient adsorbent with hierarchical pores was prepared through a facile in situ growth way combining covalent cross-linking, vacuum freeze-drying, and solvothermal methods. By incorporating with cellulose (CE), covalently cross-linked cellulose (CE)/chitosan (CS) composite aerogel exhibits good stability, maintaining fine morphology and structures in acidic solutions under solvothermal conditions. Meantime, a high content of CS is beneficial to enhancing the growth of HKUST-1. Finally, the mass loading ratio of HKUST-1 is as high as 42.54 % in HKUST-1/CCSA. The BET specific surface area of HKUST-1/CCSA reaches 457.75 m 2 g −1 , which is much larger than that of CCSA (9.74 m 2 g −1 ). HKUST-1/CCSA was applied to remove methylene blue with high adsorption capacity (526.3 mg g −1 ) and good recycling capability. This strategy can provide an effective and facile pathway to prepare ultra-stable polysaccharide-based composite aerogel with high specific surface area and hierarchical pores, branching out more applications in pollutant treatment fields.
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DOI
PubMed
高影响因子
Journal of CO2 Utilization
·
2020
·
IF 5.993
Haihong Zhao,Ning Zhao,Qin Wang,Feng Li,Feng Wang,Subing Fan,Ekaterina V. Matus,Zinfer R. Ismagilov,Lei Li,Fukui Xiao
In this work, a series of HK/MCFs-x sorbents consisting of metal organic framework (HKUST-1) and mesocellular foams (MCFs) were prepared using solvothermal method. The samples were characterized by various techniques including XRD, N 2 adsorption/desorption, TG, SEM, FT-IR, and water vapor adsorption, respectively. The CO 2 adsorption isotherms and adsorption kinetic curves at different temperatures were obtained. Results showed that the Langmuir-Freundlich model and pseudo-first-order equation could be used to describe the CO 2 adsorption isotherms and kinetic curves, thus proving the exothermic, multilayer, physical adsorption processes. The isosteric heats of adsorption of the pure HKUST-1 and HK/MCFs-1 were in the range of 19–26 KJ/mol. The mass-transfer coefficient increased along with the temperature. The adsorption activation energies of the pure HKUST-1 and HK/MCFs-1 were 4.150 and 4.203 KJ/mol, respectively. Compared with the pure HKUST-1, HK/MCFs-1 had a substantially equivalent amount of CO 2 adsorption capacity under the same conditions, while the water resistance was improved. The CO 2 mass-transfer rate was higher than the pure HKUST-1. Meanwhile, HK/MCFs-1 also showed better recyclability.
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高影响因子
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
·
2019
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IF 3.131
Jingcheng Du,Changyuan Zhang,Hong Pu,Yufeng Li,Saimeng Jin,Luxi Tan,Cailong Zhou,Lichun Dong
Oil/water separation is an urgent topic because the frequently occurred oil leakages and increasing discharge of oily wastewater. The 3D metal foams with special wettabilities are promising oil/water separation materials owing to their outstanding properties. Herein, we fabricated a HKUST-1 MOFs decorated copper foam using a facile template-sacrificial method for oil/water separation. The as-prepared copper foam possessed good superhydrophobicity under broad pH and saline conditions. Its oil adsorption capability was larger than 150% for all the chosen oils and the oil/water separation efficiency of the foam for various oil/water mixture was larger than 96%. Furthermore, although the wettability decreased to hydrophobic state after 30 cycles of mechanical abrasion, the separation efficiency of the foam kept above 97%, showing good repeatability. Results demonstrated that the distinctive 3D structure of copper foam contributed the excellent durability to mechanical abrasion.
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DOI
高影响因子
CHEMOSPHERE
·
2019
·
IF 5.108
Yulin Yang,Ying Liu,Xian Fang,Wei Miao,Xiaoyan Chen,Jing Sun,Bing-Jie Ni,Shun Mao
Transition metal and nanocarbon-based composites with high activity and stability draw great attention in electro-Fenton system for organic pollutants removal . In this study, HKUST-1-derived Cu@C nanoparticles embedded within three-dimensional reduced graphene oxide (rGO) network (denoted as 3DG/Cu@C) is synthesized through a simple strategy. The prepared catalyst shows ordered 3D porous carbon structure and Cu@C NPs are uniformly dispersed in the matrix. The 3DG/Cu@C is used as heterogeneous electro-Fenton (hetero-EF) catalyst and shows outstanding performance in various persistent organic pollutants removal. High concentration Rhodamine B (RhB) (40 mg L −1 ) can achieve a complete decolorization within 150 min with 25 mg L −1 3DG/Cu@C catalyst, which is one of the lowest catalyst dosages in hetero-EF for RhB removal. More importantly, the 3DG/Cu@C achieves high RhB mineralization efficiency of 81.5% and exhibits high catalytic performance in a wide pH window from 3 to 9. The 3DG/Cu@C also remains high efficiency after five successive reaction cycles. The working mechanism study shows that RhB is mainly oxidized by • OH and O 2 •- radicals through hetero-EF and anodic oxidation processes. The high stability and outstanding performance of 3DG/Cu@C provide new insights in organic pollutants removal by hetero-EF process with transition metal and nanocarbon-based catalysts.
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DOI
PubMed
高影响因子
危险品化学品经营许可证（带存储）