COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
·
2019
·
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.
研究领域:
材料科学
·
环境科学
✓ 已验证
产品关联
DOI
高影响因子
Journal of Environmental Sciences
·
2023
·
IF 6.9
Haike Li,Xindong Li,Guozai Ouyang,Lijinhong Huang,Lang Li,Wenhao Li,Wanfu Huang,Duokun Li
Polydopamine (PDA) and metal-organic skeleton HKUST-1 were co-deposited on the base membrane of hexamethylenediamine (HDA)-crosslinked polyetherimide (PEI) ultrafiltration membrane as the interlayer, and high-throughput organic solvent nanofiltration membrane (OSN) was prepared by interfacial polymerization and solvent activation reaction. The polyamide (PA) layer surface roughness from 28.4 nm in PA/PEI to 78.3 nm in PA/PDA-HKUST-1 0.6 /PEI membrane, reduced the thickness of the separation layer from 79 to 14 nm, and significantly improved the hydrophilic, thermal and mechanical properties. The flux of the PA/PDA-HKUST-1 0.6 /PEI membrane in a 0.1 g/L Congo red (CR) ethanol solution at 0.6 MPa test pressure reached 21.8 L/(m 2 ·hr) and the rejection of CR was 92.8%. Solvent adsorption test, N, N-dimethylformamide (DMF) immersion experiment, and long-term operation test in ethanol showed that the membranes had high solvent tolerance. The solvent flux test demonstrated that, under the test pressure of 0.6 MPa, the flux of different solvents ranked as follows: methanol (56.9 L/(m 2 ·hr)) > DMF (39.6 L/(m 2 ·hr)) > ethanol (31.2 L/(m 2 ·hr)) > IPA (4.5 L/(m 2 ·hr)) > N - hexane (1.9 L/(m 2 ·hr)). The ability of the membranes to retain dyes in IPA/water dyes solution was also evaluated. The flux of the membrane was 30.4 L/(m 2 ·hr) and the rejection of CR was 91.6% when the IPA concentration reached 50%. This OSN membrane-making strategy is economical, environment-friendly and efficient, and has a great application prospect in organic solvent separation systems.
研究领域:
材料科学
·
化学工程
·
环境科学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
MICROPOROUS AND MESOPOROUS MATERIALS
·
2022
·
IF 5.876
Wanli Zhao,Yuanhui Long,Yunqing He,Jiabing Cai,Mingxian Liu
Highly stretchable hydrogel shows great potential for wearable strain sensors. However, the rapid propagation of bacteria while using wearable sensors may threaten health. In this work, HNTs@HKUST-1 composites were prepared by the incorporation of halloysite nanotubes (HNTs) during the synthesis of HKUST-1. HNTs depressed the crystal growth of the HKUST-1, which leads to the 2D nanosheet morphology. HNTs@HKUST-1 serves as a reinforcing agent for polyacrylamide (PAAm) hydrogels, and PAAm-HNTs@HKUST-1 has high tensile strain properties (elongation at break of 912.5% and tensile strength of 22.4 kPa). The Cu 2+ in HKUST-1 endows remarkable conductivity and excellent antibacterial properties to the composite. The composite hydrogels were then developed as human motion detection sensors with antibacterial property to prevent microbial infection, which show recyclability, high sensitivity, and fast responsiveness. So, they have great potential as flexible antibacterial materials to monitor movements of the human body in real-time.
研究领域:
材料科学
·
生物医学工程
·
纳米技术
✓ 已验证
DOI
高影响因子
CARBOHYDRATE POLYMERS
·
2022
·
IF 10.723
Jinqiang Sun,Mengge Shang,Minna Zhang,Shimo Yu,Zhipeng Yuan,Xibin Yi,Serguei Filatov,Jing Zhang
Biomass aerogels are attractive in various applications owing to their inherent advantages of renewability, biodegradability and eco-friendly. Herein, a novel composite aerogel of konjac glucomannan (KGM)/TEMPO-oxidized cellulose nanofibers (TOCNF)@HKUST-1 (KTA@HKUST-1) is prepared through a facile vacuum impregnation method combined with the directional freeze-drying process, which using KGM and TOCNF as raw materials. The structural analyses disclose that the KTA@HKUST-1 has a hierarchical porosity, in which HKUST-1 can provide micropores for adsorption, while the meso -/macropores from KTA act as high-speed channels to improve diffusion and mass transfer rate to transport CO 2 components into the micropores of HKUST-1. The experiment results of KTA@HKUST-1-10 (KTA@H10) show that the CO 2 adsorption capacity can reach 3.50 mmol·g −1 at 1 bar and 298 K, and the adsorption capacity retention rate as high as 91.43% after 7 cycles. In addition, the CO 2 /N 2 adsorption selectivity of KTA@H10 can reach 18.42, which has an excellent potential for selective CO 2 adsorption.
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
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.
研究领域:
材料科学
·
环境科学
✓ 已验证
产品关联
DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2023
·
IF 15.1
Sheng Li,Sidra Subhan,Liqin Zhou,Jing Li,Zhongxing Zhao,Zhenxia Zhao
Improving the adsorption capacity of the volatile organic compounds (VOCs) will inevitably decrease the desorption efficiency and hence increase more energy-consumption, which has become a crucial challenging problem for MOFs modification and composition toward VOCs adsorption. Herein, a thermal-conductive composition strategy was proposed to anchor BN nanosheets (BNNS) into HKUST-1 crystals via “N/O-Cu-O” interface. The formed HKUST-1@BNNS composite maintained high surface area (1633.7 m 2 /g having more microporous) and enhanced heat diffusivity (1.8 times of HKUST-1), simultaneously. This enabled significant increase of toluene adsorption capacity on HKUST-1@BNNS up to 4.3 mmol/g (2.8 times of HKUST-1) at ultra-low pressure ( P / P 0 ≈ 0.001) and higher desorption rate of toluene ( k ds = 29.3 × 10 −2 , 4.0 times of HKUST-1) with lower desorption activation energy ( E d = 33.5 kJ/mol). Compared with many other state-of-the-art adsorbents (e.g., MOFs, zeolites and activated carbons), it has a much higher adsorption capacity and regeneration rate. Thus, thermal-conductive MOFs construction can be deemed as smart strategy to enhance adsorption efficiency and save desorption energy for VOCs capture.
研究领域:
材料科学
·
环境科学
✓ 已验证
产品关联
DOI
高影响因子
ENVIRONMENTAL TECHNOLOGY
·
2021
·
IF 3.247
Min Xiaobo,Li Xinyu,Zhao Jie,Hu Xiaoxian,Yang Weichun
Aiming at exploring an effective photocatalytic adsorbent for organic dye removal, a series of heterostructured TiO2@HKUST-1 photocatalysts, by incorporating HKUST-1 with different TiO2 nanoparticles loading, were prepared by single-step hydrothermal method. The morphology and surface characteristics of the as-prepared TiO2@HKUST-1were analyzed using SEM, HRTEM, XRD, FTIR, UV–vis DRS, and Photoluminescence techniques. The adsorption-photocatalytic degradation of the model dye methylene blue (MB) on the catalysts was investigated. It was indicated that the introduction of a certain amount of TiO2 on the surface of HKUST-1 could improve the transfer and separation of the photogenerated charge carriers, resulting in the enhanced photocatalytic activity. The optimal 0.02TiO2@HKUST-1 exhibited the highest MB removal rate with about 4.4 and 19.3 times as high MB removal efficiency as that of HKUST-1 and TiO2, respectively. Heterostructured TiO2@HKUST-1 materials for the removal of MB involved the integrated adsorption and visible light photocatalysis. Meanwhile, the composite exhibited good reusability in the process of cyclic experiments. Therefore, this work provides a potential MOF-based photocatalytic adsorbent for organic dye removal.
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
Journal of Materials Chemistry B
·
2023
·Vol. 11
·期 17
·3929-3940
·
IF 7
Lei Fang,Yingjie Chen,Wei Shan,Tiankun Hui,Mokni Ilham,Jie Wu,Chuanli Zhou,Liangmin Yu,Meng Qiu
The drug resistance of bacteria seriously reduces the recovery rate of general disease and endangers human health. Consequently, it is urgent to investigate a non-antibiotic antibacterial material. Recently, two-dimensional MXene has shown good antibacterial properties and received extensive attention due to the large number of active sites, extremely high thermal conversion efficiency, excellent cytocompatibility and ability to penetrate pellicula. However, the antibacterial activity of Ti3C2Tx is greatly affected by the morphology and concentration. Herein, an organic–inorganic hybrid of HKUST-1@Ti3C2Tx with high specific surface area and photothermal effect was designed and fabricated. By adjusting the content of Cu(CO2CH3)2·H2O and 1,3,5-benzenetricarboxylic acid, the photothermal properties of the material can be adjusted, and the release of Cu2+ can be easily reduced. The morphological characterization and fluorescent staining of bacteria which were co-incubated with HKUST-1@Ti3C2Tx confirmed that Gram-negative bacteria (Escherichia coli) and Gram-positive bacteria (Staphylococcus aureus) had adhered to the material. NIR irradiation has enabled induced hyperthermia and the release of Cu2+ ions, causing the disruption of the bacterial membrane, resulting in cytoplasmic leakage. Furthermore, HKUST-1@Ti3C2Tx with synergistic antibacterial effect not only exhibits an excellent bactericidal rate (over 99%) but also greatly improves cytocompatibility with the reduction of the Cu2+ ion release. Therefore, organic–inorganic composites have potential for synergistic effects and non-antibiotic antibacterial activity.
研究领域:
材料科学
·
微生物学
·
生物医学工程
✓ 已验证
DOI
PubMed
高影响因子
Journal of Materials Chemistry A
·
2013
·Vol. 2
·期 6
·1795-1801
·
IF 0
Ling Li,Xiao Lan Liu,Ming Gao,Wei Hong,Gui Zhen Liu,Lu Fan,Bin Hu,Qing Hua Xia,Li Liu,Gong Wu Song,Zu Shun Xu
The adsorption processes of methylene blue from aqueous solution on Fe3O4/HKUST-1 and Fe3O4/HKUST-1/GO composites were compared. The addition of GO has greatly decreased the surface area and pore volume, led to smaller pore size, and enhanced the adsorption capacity of Fe3O4/HKUST-1/GO. The different interesting phenomena and the effect of GO were analyzed. The high adsorption capacity, excellent reusability and stability make Fe3O4/HKUST-1/GO attractive for the removal of MB from aqueous solution.
研究领域:
环境科学
·
材料科学
✓ 已验证
DOI
Materials
·
2025
·Vol. 18
·期 5
·1131
·
IF 3.2
Tian Zhao
HKUST-1 (HKUST = Hong Kong University of Science and Technology) is one of the most recognized metal-organic frameworks (MOFs) based on copper and trimesate, extensively studied for a variety of applications, such as gas storage, separation, adsorption, electrocatalysis, drug delivery, sensor and photodegradation, etc. In this work, we introduce a novel nanofused HKUST-1, referred to as N-CuBTC (BTC = trimesate), which has been synthesized with the hydrothermal method at room temperature (typical synthesis temperature is from 80~120 °C). The resulting N-CuBTC features an irregular particle morphology, with numerous crystals clustering together and edges that have fused, creating a hierarchical pore structure. In contrast to the traditional micro-sized octahedral HKUST-1 (named as M-CuBTC), N-CuBTC displays a unique clumped morphology, where the HKUST-1 crystals are seamlessly integrated into a cohesive structure. This innovative formation significantly enhances mass transfer capabilities and porosity accessibility. Consequently, N-CuBTC demonstrates markedly improved catalytic performance in the cyanosilylation of aldehydes.
研究领域:
材料科学
·
催化化学
✓ 已验证
DOI
PubMed
高影响因子
CARBOHYDRATE POLYMERS
·
2020
·
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.
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
MOLECULES
·
2025
·Vol. 30
·期 3
·502
·
IF 4.6
Tian Lan,Xiaofan Ding,Qi Chen,Songtao Xiao,Taihong Yan,Tianchi Li,Weifang Zheng
Iodine is one of the key elements that must be removed from the off-gas systems of nuclear fuel reprocessing. This study systematically investigates the iodine vapor adsorption performance of the metal–organic framework (MOF) material HKUST-1(1-(2-methyl-4-(2-oxopyrrolidin-1-yl)phenyl)-3-morpholino-5,6-dihydropyridin-2(1H)-one), with particle sizes of 100 nm and 20 μm. HKUST-1 samples with varying particle sizes were synthesized via a hydrothermal method. The experimental results show that the 20 μm HKUST-1 exhibits superior crystallinity, a more intact pore structure, and a higher iodine adsorption capacity, reaching 700 mg/g, which is significantly greater than the 300 mg/g capacity of the 100 nm HKUST-1. Kinetic analysis reveals that the adsorption process follows the pseudo-second-order model, with physical adsorption as the predominant mechanism, where iodine molecules are accommodated within the pores. FTIR and XRD further confirm the structural stability of the HKUST-1 framework after iodine adsorption. However, desorption experiments show that iodine molecules are easily volatilized into the air, with a 20% weight loss observed within 10 h and a color change from black to green. The results provide experimental evidence for optimizing the application of HKUST-1 materials in iodine capture and suggest that material modification could enhance the long-term stability of iodine fixation.
研究领域:
材料科学
·
核工程
·
环境科学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
危险品化学品经营许可证（带存储）