Journal of Cleaner Production
·
2018
·
IF 5.651
Chen Fan,Hongqiang Dong,You Liang,Jiale Yang,Gang Tang,Wenbing Zhang,Yongsong Cao
Cyhalothrin is lethally toxic to aquatic organisms and has caused adverse effects in the hydrosphere . It is urgent to develop efficient and sustainable material for its removal. High-quality HKUST-1 was rapidly synthesized by cholinium ionic liquids (ILs) in water at room temperature. Yields of HKUST-1 showed obviously positive correlation with Hammett values of ILs. When applying CuCl 2 as a copper salt, the yield of products was reached up to 95.5%, which was much higher than that of reported research. The reaction could be readily scalable with high space-time yield (242512 kg m −3 d −1 ). Additionally, ZrO 2 @HKUST-1 composite was successfully synthesized through a sol-gel method without complicated heat treatment. The whole process eliminates the use of environmentally unfriendly solvents/amines and enables the production of material at a reasonable cost. The obtained HKUST-1 and ZrO 2 @HKUST-1 possessed large pore volume (0.88–0.95 cm 3 g −1 ) and high surface area (1152–1484 m 2 g −1 ). The composite material was used for the adsorption/degradation of cyhalothrin and showed superior photocatalytic activity under moderate visible light, as compared to pure ZrO 2 , HKUST-1 and commercial TiO 2 samples. ZrO 2 @HKUST-1 displayed the high cyhalothrin adsorption capacity of 333 mg g −1 through π−π stacking, which facilitated more target molecules to contact the composite in a short time. ZrO 2 incorporating with HKUST-1 protected ZrO 2 nanoparticles from rapid agglomeration, thus narrowed the band gap of the composite. Moreover, the formation of a junction between HKUST-1 and ZrO 2 effectively reduced the recombination of photoinduced carriers in composite. Therefore, the novel ZrO 2 @HKUST-1 composite can be used as a sustainable efficient heterogeneous photocatalyst for the removal of organic pollutant.
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NANOTECHNOLOGY
·
2024
·Vol. 35
·期 41
·415501
·
IF 2.9
Yanxin Liao,Shupei Sun,Qian Du,Nianfeng Shi,Guangfu Yin,Zhongbing Huang,Xiaoming Liao
Metal–organic frameworks (MOFs) are believed to be promising precursors for constructing novel and efficient catalysts for glucose sensing. Herein, HKUST-1 precursors are first fabricated using a one-pot hydrothermal approach, and then HKUST-1 is converted into porous Cu2S/CuO octahedrons through conformal sulfidation with the help of OH− ions. The as-obtained Cu2S/CuO composite can provide rich electrochemical active sites and promoted electric transfer kinetics. Benefiting from these combined merits, the as-fabricated Cu2S/CuO composite is confirmed to be a high-performance catalyst, with high sensitivities of 8269.45 and 4140.82 μA mM−1cm−2 in the corresponding ranges of 0.05 ∼ 0.6 mM and 0.6 ∼ 1.2 mM, respectively. Moreover, the as-prepared electrode materials possess good anti-interference ability, reproducibility and long-term stability. This work opens up new avenues for the design and preparation of transition metal sulfide composites.
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RSC Advances
·
2015
·Vol. 5
·期 35
·27901-27911
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IF 3.84
Chunling Xin,Haijuan Zhan,Xin Huang,Hongguang Li,Ning Zhao,Fukui Xiao,Wei Wei,Yuhan Sun
Two type of modulators, including sodium acetate and triethylamine were used to synthesize nanosized HKUST-1 crystals with tailored size and morphology using a coordination modulation method. The results of X-ray diffraction, scanning electron microscopy, transmission electron microscopy, and N2 sorption isotherms confirm that the size of the HKUST-1 crystals can be tuned from the micron scale to the nanoscale through precise modulation of the amounts of the modulators. Moreover, hierarchical porous structures are obtained with the addition of modulators. It is suggested that a moderate acid–base environment and capping groups play an important role in controlling the size and morphology of HKUST-1. Dynamic CO2 breakthrough experiments illustrate that the CO2 capacity of nanosized HKUST-1 crystals is superior to that of micron-sized HKUST-1 crystals under low CO2 partial pressure conditions (0.1 bar). Besides, the CO2 adsorption capacity of nanosized HKUST-1 crystals was maintained after ten adsorption/desorption cycles.
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INORGANIC CHEMISTRY
·
2025
·
IF 4.7
Yong Song,Wenjia Hao,Jinsong Li,Bo Jin,Rufang Peng
Hierarchical porous metal–organic frameworks (HP-MOFs) have attracted considerable attention because of their hierarchical pores, which can address the slow mass transfer and less exposure of active sites in pristine microporous MOFs. Although several preparation methods have been developed to date, a large-scale technique for the synthesis of HP-MOFs is still lacking. In this study, we report a novel method for the large-scale synthesis of HP-HKUST-1 based on liquid-assisted spiral gas–solid two-phase flow (LA-S-GSF). This method ingeniously uses a nebulizer to promote the rapid synthesis of nano-HKUST-1 by introducing trace amounts of water during the S-GSF reaction. During the washing and drying process, these nanoparticles were fully fused to form nanocrystalline aggregates, resulting in a hierarchical porous structure with a large number of micropores, mesopores, and macropores. The pore size distribution can be regulated by changing the drying temperature to obtain HP products with combinations of micropores and mesopores, micropores and macropores, and the formation mechanism of the HP structure was also explored. This method required only 11 min of reaction time to obtain 25.2 g of HP-HKUST-1 in 96% yield, with a corresponding space-time yield (STY) of 6.9 × 104 kg m–3 day–1.
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INORGANIC CHEMISTRY COMMUNICATIONS
·
2025
·
IF 5.4
Fengxing Long,Yanjia Zhou,Xiaodong Tang,Zheng Wang,Zhedan Yang,Liping Feng
For lithium extraction processes from liquid lithium resources, surmounting the interference of coexisting ions on the selective extraction of Li + − especially the selective separation of Mg 2+ and Li + − presents a challenging task. UIO-66 and HKUST-1, both metal-organic frameworks (MOFs), are synthesized using organic ligands with benzene ring groups. To boost the Li + adsorption and recognition capabilities of these two materials, LiNO 3 was introduced as a template, which not only constructs a Li + -size-adapted microenvironment within the adsorbent framework but also functions as a mineralizer, facilitating the formation of more uniformly sized crystals. The modified Li/UIO-66 and Li/HKUST-1 achieved maximum Li + adsorption capacities ( Q ) of 35.57 and 26.33 mg/g, respectively, reaching adsorption equilibrium within approximately 3 h. Li/UIO-66 showcases excellent Mg 2+ /Li + separation performance and maintains certain separation factor even in mixed solutions containing multiple interfering ions. Although Li/HKUST-1 demonstrates a stronger tendency for selective adsorption of higher-valent ions, it holds promise for the removal of interfering ions from solutions, thereby contributing to the overall optimization of lithium extraction processes.
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APPLIED CATALYSIS B-ENVIRONMENTAL
·
2025
·
IF 21.1
Xiaohang Sun,Zhengzuo Liu,Shuairen Qian,Kaiqi Nie,Zhengwen Li,Weiming Wan,Binhang Yan
Designing an active Cu/ZnO interface is crucial for efficient catalytic hydrogenation of CO 2 to methanol. In this study, we introduce a straightforward impregnation method to synthesize HKUST-1-derived inverse ZnO x /Cu catalysts. The resulting ZnO x /Cu interface exhibits outstanding methanol space-time yield and selectivity, surpassing conventional Cu/ZnO catalysts synthesized via the co-precipitation and impregnation methods. In situ characterization reveals that small, well-dispersed ZnO x nanoparticles are located on moderately sized Cu nanoparticles, which is attributed to the high specific surface area and ligand coordination of HKUST-1. The inverse ZnO x /Cu structure promotes the formation of reduced ZnO x nanoparticles, which significantly enhance CO 2 and H 2 activation, resulting in increased methanol production. Additionally, the moderate size of Cu nanoparticles minimizes CO* intermediate formation, further enhancing methanol selectivity. This work not only offers valuable insights for the development of new Cu/ZnO catalysts but also provides guidance for the synthesis of inverse metal oxide/metal catalysts for other catalytic systems.
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Journal of Materials Chemistry A
·
2013
·Vol. 1
·期 35
·10292-10299
·
IF 0
Ling Li,Xiao Lan Liu,Hong Yun Geng,Bin Hu,Gong Wu Song,Zu Shun Xu
The adsorption of methylene blue (MB) from aqueous solution on a HKUST-1/GO (MOFs : HKUST-1) composite was studied in view of the adsorption isotherm, kinetics and regeneration of the sorbent. The adsorption isotherms of methylene blue (MB) on the HKUST-1/GO composite followed both the Freundlich isotherm and the Langmuir isotherm. Adsorption kinetics and thermodynamic parameters were determined from the experimental data. The used HKUST-1/GO could be regenerated by acetone, so it can be recycled for reuse. The high adsorption capacity and excellent reusability make HKUST-1/GO attractive for the removal of MB from aqueous solution.
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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.
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INDUSTRIAL CROPS AND PRODUCTS
·
2022
·
IF 6.449
Zicheng Chen,Xiangyang He,Jing Ge,Guangyuan Fan,Lanhe Zhang,Ashak Mahmud Parvez,Guanhua Wang
Nanofibrillated cellulose (NFC) has presented great potential as supports for functional membrane materials owing to its unique advantages. In this work, NFC-supported MOF hierarchically porous membranes were synthesized by anchoring HKUST-1 (copper 1,3,5-benzenetricarboxylate open-framework) on NFC membrane through a green DMF-free (N,N-Dimethylformamide) method at room temperature and afterward, the as-prepared composite membrane was used to remove formaldehyde from the air. The addition of HKUST-1 particles significantly increased the specific surface area of NFC membrane without affecting the NFC properties. Meanwhile, the nucleation and growth process of HKUST-1 on the NFC membrane could be effectively regulated, which further controlled the morphology of HKUST-1 as well as the anchored position of HKUST-1. When HKUST-1 was anchored on the interior and surface of the membrane, HKUST-1 reduced the compactness of the arrangement between fibers, which resulted in a hierarchical porous structure and then exposed more active adsorption sites of HKUST-1 particles. Thus, the flexible composite membranes exhibited effective formaldehyde adsorption from a low formaldehyde concentration environment (3.0 mg/m 3 ). Under the optimum conditions, the maximum adsorption capacity of the HKUST-1@NFC-1 for formaldehyde reached 378.09 mg/g (based on HKUST-1 wt), which was considerably higher than support-free HKUST-1 powders. Consequently, the present work offers a green and controllable route to prepare NFC-supported MOF composite membranes with highly effective formaldehyde adsorption capacity and thus provides a promising option for NFC application as a flexible adsorbent support.
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ANALYTICA CHIMICA ACTA
·
2021
·
IF 6.558
Jing Wen,Lijun Zhou,Ding Jiang,Xueling Shan,Wenchang Wang,Hiroshi Shiigi,Zhidong Chen
Herein, a sensitive and selective electrochemiluminescence (ECL) aptasensor was designed using [email protected] as accelerator towards the perylene derivative (PTC-Cys)/peroxydisulfate (S 2 O 8 2− ) system for kanamycin (KAN) assay. Firstly, the PTC-Cys was prepared by covalently binding l -cysteine to 3,4,9,10-perylenete-tracarboxylic acid, which was acted as the luminophore. Then [email protected] play the part of effective catalyst to accelerate the electrochemical reduction process of S 2 O 8 2− to produce more sulfate radical anions (SO 4 •- ), thus the ECL signal of the compound was noticeably raised by 2.4 times in comparison with that in which only luminophore and S 2 O 8 2− are present, achieving signal amplification of the ECL system. In the presence of KAN, aptamer was pulled down from the sensing interface, achieving a considerable enhancement of ECL intensity in S 2 O 8 2− solution. Upon the optimal condition, our proposed strategy can quantify the concentration of KAN from 1.0 × 10 −13 to 1.0 × 10 −8 M with low limit of detection of 4.2 × 10 −14 M (S/N = 3).Besides, our proposed ECL aptasensor exhibited excellent sensitivity, stability and specificity, and could be successfully applied to detect KAN in practical samples, which proved its potential to detect other antibiotics in food security.
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SEPARATION AND PURIFICATION TECHNOLOGY
·
2023
·
IF 8.6
Jiong Wang,Zhibin Liu,Zhirong Sun
In this study, a graphite felt (GF) electrode material supporting a Cu-based catalyst (CuHDC-400/GF) was prepared by a hydrothermal process and subsequent heat treatment. A heterogeneous electro-Fenton (EF) system was built to investigate the degradation of sulfamethoxazole (SMX) by the composite cathode. Scanning electron microscopy, X-ray diffraction, Raman spectroscopy , and X-ray photoelectron spectroscopy were used to characterize the physical and chemical properties of the composite cathode. The results show that the composite cathode CuHDC-400/GF has excellent catalytic performance, achieving 100 % removal of SMX (10 mg/L) within 45 min (aeration rate = 0.6 L min −1 , current density = 5 mA cm −2 , initial pH = 5.6). Furthermore, efficient removal of SMX can be achieved over a wide pH range (pH = 3–9). The electrode material can still efficiently degrade SMX after eight cycles. Compared with a heterogeneous EF system, in which the Cu catalyst was directly added to the reaction solution, using CuHDC-400/GF as the cathode realizes the in-situ catalysis of H 2 O 2 , leading to reduced catalyst consumption and enhanced electrode stability. The investigation of potential SMX degradation pathways and mechanisms revealed that the continuous production of active free radicals is facilitated by the redox cycle between Cu Ⅰ and Cu Ⅱ on the electrode surface, which can enable SMX degradation. Unlike the Fe-based Fenton reaction, the active superoxide radical O 2 – was identified as the major contributor to SMX degradation in this system, followed by the hydroxyl radical OH. The active sites for SMX degradation were predicted by density functional theory calculations. Combined with the measured mass/charge ratios, the possible degradation paths and intermediates of SMX were predicted. Furthermore, toxicity analysis shows that toxicity significantly declines after degradation. This work is expected to inspire subsequent research on heterogeneous EF cathode materials with high catalytic performance.
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CHEMICAL ENGINEERING JOURNAL
·
2016
·
IF 5.31
Feng Xu,Ying Yu,Jian Yan,Qibin Xia,Haihui Wang,Jing Li,Zhong Li
An ultrafast synthesis method is developed for the preparation of composites of graphite oxide and HKUST-1, GrO@HKUST-1. Fast synthesis of GrO@HKUST-1 composites can be quickly achieved at room temperature within 1 min. The synthesized composites were characterized by XRD, SEM, N 2 adsorption, FTIR and TGA. The isotherms of CO 2 and N 2 on the as-synthesized materials were measured and the isosteric heats of CO 2 adsorption were estimated. The CO 2 /N 2 adsorption selectivities were predicted by means of ideal adsorbed solution theory (IAST). Results show that the GrO@HKUST-1 composites have higher BET surface area and pore volume than the parent HKUST-1. The CO 2 adsorption capacity of 2GrO@HKUST-1 (2% of GrO) is up to 9.02 mmol/g at 1 bar and 273 K, giving an increase of 32% in comparison of the parent HKUST-1. The isosteric heat of CO 2 adsorption on 2GrO@HKUST-1 is slightly higher than that of HKUST-1, suggesting the stronger interaction between CO 2 molecules and 2GrO@HKUST-1. The CO 2 /N 2 adsorption selectivity of 2GrO@HKUST-1 is significantly enhanced over pristine HKUST-1. At 1 bar, the CO 2 /N 2 adsorption selectivity of 2GrO@HKUST-1 is up to 186, while that of parent HKUST-1 is only 103. This rapid room temperature synthesis route is promising for new MOF-based composites.
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