INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
·
2024
·
IF 7.7
Xin Li,Kun Xu,Yiyang Bi,Dongjie He,Xin Wang,Ke Li,Qun Liu,Yu Zhang
A new HKUST-1@covalently crosslinked agarose aerogel (HKUST-1@CCAGA) was synthesized for the highly effective elimination of Methylene Blue (MB). Firstly, the covalently crosslinked agarose aerogel (CCAGA) was obtained by hydrothermal crosslinking reaction with epichlorohydrin (ECH) as crosslinker, which remained stabilized under hydrothermal and solvothermal conditions. Then, HKUST-1 was made to bind to CCAGA by in situ solvothermal assays, and the HKUST-1 loading rate reached 47.4 % based on thermogravimetric data and calculated using the cross over method. Meanwhile, the SEM exhibited the complete 3D honeycomb structure of CCAGA, and HKUST-1 particles uniformly distributed on its layers. Additionally, the specific surface area of HKUST-1@CCAGA can reached 648.59 m 2 ·g −1 . The HKUST-1@CCAGA composite was utilized for MB removal, achieving a high adsorption capacity of 424.30 mg·g −1 at pH 8. The adsorption of MB was also maintained at 80 % after 5 cycles of the experiment. The composite aerogel exhibits good recyclability and has excellent adsorption capacity.
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高影响因子
ACS Applied Nano Materials
·
2024
·
IF 5.3
Qinglin Chen,Long Tian,Ming Ruan,Yi Liu,Cheng Peng,Weigang Cui,Wei Liang,Shaoyun Shan,Tianding Hu
Fenton-like reactions with Fe-based metal–organic framework (MOF) catalysts have been extensively explored in the field of environmental remediation. However, easy precipitation of Fe2+/Fe3+ and the production of sludge under basic conditions caused catalyst loss and greatly limited their large-scale application in industry. The development of an Fe-free Fenton-like reaction is of extreme importance and remains in its infant stage. Herein, a series of Fe-free dual MOF nanoparticles (HKUST-1/ZIF-67-X) were fabricated by in situ coating of ZIF-67 on HKUST-1 and were systematically analyzed by various characterization techniques, such as scanning electron microscopy (SEM), transmission electron microscopy (TEM), X-ray diffraction (XRD), Fourier transform infrared (FT-IR), X-ray photoelectron spectroscopy (XPS), and N2 adsorption–desorption isotherms. Subsequently, these materials were applied in catalyzing methylene blue (MB) degradation. The effects of several operation parameters, i.e., pH, H2O2 dosage, catalyst dosage, and reaction temperature, on MB degradation were investigated. It was unveiled that HKUST-1/ZIF-67-7% exhibited an outstanding catalytic activity without the production of any sludge, which could reach as high as 93.29% MB degradation efficiency within 40 min. This was attributed to the unique core–satellite histoarchitecture of HKUST-1/ZIF-67-7% and the synergistic effect between HKUST-1 and ZIF-67. The HKUST-1/ZIF-67-7% composite still achieved up to 80.17% MB degradation efficiency at the fifth catalysis cycle. Importantly, HKUST-1/ZIF-67-7% exhibited significant catalytic efficiency under a wide pH range (4.2–10.1) and top catalytic efficiency at the near neutral pH value. The low cost, environment benignancy, satisfactory degradation efficiency, wide pH application range, and excellent reusability emphasize its great application potential in Fenton-like degradation of pollutants. This contribution could provide a paradigm investigation for designing non-iron-based MOF catalysts to solve the increasingly pressing pollution issues.
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TALANTA
·
2024
·
IF 5.6
Rui Liu,Chaojun Zhang,Tianheng Wu,Rijia Liu,Yuan Sun,Jing Ma
In this work, a novel HKUST-1/CoFe 2 O 4 /g-C 3 N 4 electrode was successfully prepared via the hydrothermal method and the high-temperature calcination method, which can be applied as an electrochemical sensor for the precise detection of ciprofloxacin (CIP) in physiological samples. The novel electrode was characterized by scanning electron microscopy (SEM), X-ray diffraction (XRD) and Fourier-transform infrared spectroscopy (FT-IR), and its electrochemical performance was further evaluated via the cyclic voltammetry (CV) and differential pulse voltammetry (DPV) techniques. The results demonstrated that the HKUST-1/CoFe 2 O 4 /g-C 3 N 4 electrode exhibited an optimal linear range of 0.05–180 μmol L −1 for the CIP detection, which demonstrated a low limit of detection (LOD) of 0.0026 μmol L −1 and a low limit of quantitation (LOQ) of 0.0087 μmol L −1 , respectively. Additionally, the novel semiconductor sensors exhibited exceptional selectivity, stability and repeatability in the determination of CIP. The recovery rate of CIP was found to range from 98.00% to 104.00% in serum, with the relative standard deviations (RSD) below 2.62% (n = 5), while the recovery rate of CIP was found to range from 96.00% to 105.00%, with the RSD less than 3.23% (n = 5) in urine. The current study extends to the application of the semiconductor-based electrochemical sensors and offers a new approach for the clinical pharmaceutical analysis to ensure medication safety, which could provide valuable insights into the potential of semiconductor sensors for future clinical applications.
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SENSORS AND ACTUATORS B-CHEMICAL
·
2019
·
IF 6.393
Yanna Lin,Xueying Wang,Yuanling Sun,Yuxue Dai,Weiyan Sun,Xiaodong Zhu,Hao Liu,Rui Han,Dandan Gao,Chuannan Luo
In this work, target-responsive DNA hydrogel with high loading and good biocompatibility was used to construct chemiluminescent biosensor for specific detection of adenosine. Acrydite-modified adenosine aptamer (Acry-A-Apt), acrydite-modified single-strand DNA (Acry-ssDNA) and hemin aptamer (H-Apt) were used to prepared the DNA hydrogel, and the three single-strand DNA were partially complementary to each other. Thus, the DNA hydrogel only dissolved when adenosine and hemin were present simultaneously. HKUST-1 is a Cu-based MOFs with peroxidase-like activity. Au NPs were coated into cavities of HKUST-1 to obtain [email protected] , and the [email protected] had a stronger peroxidase-like activity than HKUST-1. [email protected] was coated in the DNA hydrogel. When only hemin was present, hemin bound to the H-Apt to form the G-quadruplex/hemin and the DNA hydrogel remained in the gel state. Therefore, the G-quadruplex/hemin was formed in the hydrogel and the excess hemin can be removed, avoiding background signal interference. Adenosine was then added and the preferential interaction between adenosine and adenosine aptamer resulted in complete dissolution of the DNA hydrogel. Subsequently, G-quadruplex/hemin and [email protected] were released simultaneously, enabling dual signal amplification of chemiluminescent biosensor, yielding a “signal on” readout. As a result, the biosensor could quantify adenosine from 4 × 10 −13 – 1.5 × 10 -10 mol/L with a detection limit as low as 1.04 × 10 −13 mol/L. The DNA hydrogel system provides a simple, sensitive and biocompatible method for the detection of adenosine which is useful in the field of biotechnology.
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高影响因子
MICROCHIMICA ACTA
·
2021
·Vol. 188
·期 10
·1-10
·
IF 5.833
Zheng Delun,Chen Min,Peng Jingjun,Chen Jiayang,Chen Tufeng,Chen Yaowen,Huang Linjia,Gao Wenhua
HKUST-1 MOFs and its derivative HKUST-CuO were coupled with TiO 2 nanoparticles to form the heterogeneous composites of HKUST-1/TiO 2 and HKUST-CuO/TiO 2 based on their well-suitable bandgap energies (Eg). Compared with mono-component HKUST-1 or HKUST-CuO, the prepared composites displayed photoelectrochemical (PEC) response due to the synergistic effect from their heterogeneous structure. Higher photocurrent response was obtained on HKUST-CuO/TiO 2 -modified ITO electrode (HKUST-CuO/TiO 2 /ITO), which could be attributed to the hollow structure with a thin shell of HKUST-CuO greatly enhancing visible spectra harvesting. The CuO component in HKUST-CuO not only could accelerate electron transfer on the heterojunction interface but also effectively separate the photo-generated charge carriers (e −1 /h + ). Based on the excellent PEC performance of prepared photoactive composite material, under visible-light excitation ( λ ≥ 420 nm) and with a working potential of 0 V (vs. Ag/AgCl), the S1 (probe DNA)/HKUST-CuO/TiO 2 /ITO PEC platform was successfully fabricated for colitoxin DNA detection without using ascorbic acid (AA) as an electron donor. Compared with the analysis results on S1/HKUST-1/TiO 2 /ITO electrode, S1/HKUST-CuO/TiO 2 /ITO displayed a wider linear response range from 1.0 × 10 −6 to 4.0 × 10 −1 nM with a lower detection limit of 3.73 × 10 −7 nM (S/ N = 3), the linear regression equation was Δ I (10 −6 A) =0.5549–0.1858 log ( C S2 /M), which confirmed the HKUST-CuO could improve sensitivity because of its prominent PEC property. The relative standard deviation (RSD) of the PEC sensor for target DNA detection of 2.0 × 10 −4 nM was 7.4%. The proposed DNA biosensor also possessed good specificity and stability. Hence, this reported work was a promising strategy for molecular diagnosis in the bio-analysis field. Graphical abstract
(A) Schematic illustration of the preparation process of the proposed PEC biosensors for colitoxin DNA detection. (B) The preparation process of HKUST-1 and HKUST-CuO.
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SEPARATION AND PURIFICATION TECHNOLOGY
·
2021
·
IF 7.312
Shuang Qiu,Jinghua Du,Yonghou Xiao,Qidong Zhao,Gaohong He
Ultra-deep removal of thiophene sulfides from transportation fuel via adsorption has aroused great attention under the pressure of gradually demanding environmental regulations. The development of high-efficiency adsorbents is the key to adsorptive desulfurization for producing clean transportation fuels. In this work, a microwave-assisted synthesis method was applied to rapidly fabricate hierarchical porous defective HKUST-1 (DEHKUST-1) towards removing benzothiophene from model fuel by selective adsorption. The effects of cetyltrimethylammonium bromide (CTAB) dosage, adsorption temperature and adsorption contact time on the DEHKUST-1 desulfurization performance were systematically investigated. The characterization results proved that both metal clusters and linker defects were generated in the as-prepared DEHKUST-1. CTAB as template could modulate the pore distribution and introduce reasonable defects in the framework of HKUST-1. At CTAB: Cu 2+ = 0.5 by mole ratio, a regular mesoporous distribution of 25–30 nm could be obtained with DEHKUST-1; it exhibited an impressive enhancement in adsorptive desulphurization performance. The maximum adsorption capacity of the adsorbent attained 14.4 mg S/g adsorbent at 20 °C in 4 h. Even after CTAB-H-0.5 was regenerated six times, its adsorption capacity remained 93% as that of the as-prepared adsorbent. An adsorption mechanism was proposed to illustrate the promoting desulfurization performance by introduction of hierarchical porous in HKUST-1. By virtue of the rapid synthesis and remarkable benzothiophene removal capacity, the DEHKUST-1 could be a potential adsorbent in desulfurization from real fuels.
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ENVIRONMENTAL RESEARCH
·
2025
·
IF 7.7
Xiang Li,Ping Zhang,Rui Wang,Meng Zhu,Xiaobo Gong,Yucheng Liu
The degradation of separation performance caused by the high abrasion of the continuous separation process puts forward more requirements for the adaptability and durability of the oil-water separation membranes. Herein, inspired by the mortise and tenon (MT) structures of ancient Chinese wooden frame buildings, a superhydrophilic and underwater superoleophobic stainless steel mesh (SSM) membrane with HKUST-1-copper hydroxide (CuOH) interlocking micro-nanostructures (HKUST-1/CuOH) was prepared via electrodeposition and hydrothermal growth techniques. The homogeneous growth of HKUST-1 and CuOH with superhydrophilicity and MT structures provides ultral wettability and durability for the HKUST-1/SSM/CuOH membrane. The optimal HKUST-1/SSM/CuOH membrane exhibited a water contact angle of 0° and an underwater oil contact angle of 156°. The flower-like microstructures improve acid and alkali tolerance, organic solvent tolerance, NaCl solution tolerance, thermal resistance, and UV aging performances. In addition, the HKUST-1 and CuOH coatings showed superior and durable antibacterial performance of the HKUST-1/SSM/CuOH membrane. This membrane with an MT structure demonstrated excellent reusability, showing a water flux of 23818 L·m –2 ·h –1 and UWOCA of 152.09° after 20 cycles. The proposed method is a promising candidate for unrelenting superhydrophobicity and high permeability in oily water treatment.
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Nano Research
·
2023
·Vol. 16
·期 12
·13366-13374
·
IF 9.9
Lin Chaoxin,Kim Kumchol,Wang Zuochao,Yan Zhuang,Tang Zhiyong,Liu Yaling
Integration and synergy of the unique functions of different components have been developed into one of the most convenient and effective ways to construct the composite advanced materials with collective properties and improved performances. In this work, the mace-like tetrathiafulvalene-tetracyanoquinodimethane (TTF-TCNQ)/HKUST-1 composite structures with single single-crystalline TTF-TCNQ submicrorods covered by ordered HKUST-1 nanosheet arrays were successfully constructed by an efficient TTF-TCNQ seed-mediated growth approach. Impressively, thanks to the synergetic and complementary effects between TTF-TCNQ and HKUST-1, the sensors based on such mace-like TTF-TCNQ/HKUST-1 composite structures not only displayed an experimental detection limit of 10 part per billion (ppb) for NO 2 detection, but also exhibited outstanding selectivity even if the concentration of the interfering gases was 10 times that of NO 2 . Meanwhile, good reproducibility and rapid response were also achieved. This work opens the avenue for creation of novel high-performance sensing materials for application in gas sensing.
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Small Methods
·
2026
·Vol. 10
·期 4
·e01991
·
IF 9.1
Huiling Liu,Xingkai Jia,Xuan Zhang,Lihua Feng,Hongge Pan,Mi Yan,Yinzhu Jiang
Metal-organic frameworks (MOFs) are promising hosts for quasi-solid electrolytes (QSEs) by integrating liquid electrolytes (MOF@LE QSEs), yet stabilizing lithium metal anodes (LMAs) to enhance electrochemical performance remains a challenge. Here, we introduce a strategy leveraging open metal sites (OMSs) in HKUST-1 (Cu 3 (BTC) 2 ) combined with LiNO 3 to tailor solid electrolyte interphase (SEI) chemistry and lithium deposition. OMSs in HKUST-1 anchor NO 3 − and promote LiNO 3 dissociation, enriching SEI with nitrogen-containing inorganic compounds and enabling uniform and spherical lithium morphology. Consequently, LMAs with LiNO 3 -incorporated HKUST-1 membrane QSE (HM-LN QSE) achieve a critical current density of 2.7 mA cm −2 , with stable lithium plating/stripping over 650 h at 0.2 mA cm −2 and more than 300 h at 0.5 mA cm −2 . Moreover, LiLiFePO 4 cells assembled with HM-LN QSEs delivere a discharge capacity of 81.2 mAh g −1 at 5 C and retain 81.2% capacity after 350 cycles at 2 C, demonstrating superior electrochemical stability and performance. This innovative MOF-based approach significantly enhances SEI stability and LMA performance, advancing lithium metal battery technology.
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Journal of Inorganic and Organometallic Polymers and Materials
·
2026
·
IF 6
Li Qiaomei,Hong Wei,Wei Tianyu,Fan Yupeng,Luo Yuhui,Li Jinlou,Qiao Zhihua,Jia Xuemeng,Zhang Dong-En
Metal-organic frameworks (MOFs) have shown great promise for water treatment owing to their tunable porous structures and abundant active sites. However, the practical application of conventional MOFs, such as HKUST-1, is still limited by insufficient structural stability in aqueous environments and poor recoverability in powder form. Herein, a coordination-induced in situ self-assembly strategy was developed to fabricate structurally stable carboxymethyl chitosan (CMCS)@HKUST-1/polyvinylidene fluoride (PVDF) electrospun fibers. In detail, Cu 2+ was first incorporated into PVDF matrix by electrospinning to obtain Cu 2+ /PVDF fibers, which were subsequently immersed in a mixed ligand solution containing 1,3,5-benzenetricarboxylic acid (H 3 BTC) and CMCS, enabling the in situ growth of CMCS-modified HKUST-1 on the fiber matrix. CMCS participated in the coordination-induced assembly process mainly through -COOH/-COO⁻, thereby strengthening the Cu-O coordination environment and improving the resistance of HKUST-1 to water-induced structural degradation. Meanwhile, the flexible CMCS chains and their hydrophilic functional groups enhanced the interfacial interaction, wettability, and accessibility of adsorption sites within the composite fibrous network. The practical potential of CMCS@HKUST-1/PVDF electrospun fibers was evaluated through the treatment of simulated dyeing wastewater, in which it exhibited a high Congo red adsorption capacity of 173.08 mg/g and maintained robust structural stability under elevated temperature treatment at 70 ℃, as well as in aqueous environments over a pH range of 6–10. This work provides a facile and effective strategy for constructing recoverable, structurally stable, and high-performance MOF-based fibrous adsorbents for water treatment applications.
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JOURNAL OF CHEMICAL SCIENCES
·
2022
·Vol. 134
·期 3
·1-11
·
IF 2.15
LIU XIAOJUAN,LI MINGMING,YANG SHUMING,YANG YAYA,NIE JIANG,XUE YUBING,OUYANG YINGGEN,XIAO SONGTAO
The increasing demand for neodymium (III) and samarium (III) due to their extensive high-tech applications has drawn much attention to their recovery. In this work, the copper-based metal-organic framework HKUST-1 was prepared and used for the adsorption of neodymium (III) and samarium (III) in the media of an aqueous solution. The maximum adsorption capacity of the material for neodymium (III) and samarium (III) was 284.11 and 503.45 mg g −1 at a pH of 5.5, respectively. The adsorption removal rate could achieve nearly 100% at the solid-to-liquid ratio of 1.0 g L −1 , which is relatively excellent among such adsorbents used for rare earth elements uptake. The mechanism and reversibility of neodymium (III) and samarium (III) adsorption were systematically investigated by X-ray diffraction, Fourier transforms infrared spectroscopy, Raman spectra, and X-ray photoelectron spectroscopy, suggesting that the mechanism for the adsorption was ion exchange and complexation between trivalent rare-earth ions and the oxygen atom in the hydroxyl group. The reason behind the material displaying a more robust affinity for samarium (III) may be caused by the energy difference between f n and f n+1 states of samarium (III) was larger than that of neodymium (III), thus forming stronger covalent bonding. Graphical abstract HKUST-1 exhibited high adsorption capacity towards Nd (III) and Sm (III). The reason behind the material displaying a more robust affinity for Sm(III) was caused by that the energy difference between f n and f n+1 states of Sm(III) was larger than that of Nd(III), thus forming stronger covalent bonding.
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ACS Applied Materials & Interfaces
·
2021
·
IF 9.229
Tongtong Wang,Xuedan Song,Hailong Xu,Miaomiao Chen,Jie Zhang,Min Ji
A recyclable and magnetic nanocomposite catalyst (IL/Fe3O4@HKUST-1) was synthesized via grafting ionic liquid (IL) [AEMIm]BF4 into magnetically functionalized metal–organic framework Fe3O4@HKUST-1 in a water–ethanol media. The properties of IL/Fe3O4@HKUST-1 were fully characterized by powder X-ray diffraction, electron microscopy, Fourier-transform infrared spectroscopy, nitrogen adsorption–desorption, density-functional theory, and a magnetic property measurement system. IL/Fe3O4@HKUST-1 showed high activity in the solvent-free cycloaddition of CO2 with epoxides under mild conditions. Furthermore, the catalyst can be easily separated from the reaction mixture, and the recycled catalyst maintained high performance for several cycles. The synergistic effect of the Lewis acid and base sites in IL/Fe3O4@HKUST-1 contributes to its greater reactivity than individual IL or HKUST-1.
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高影响因子
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