MICROCHIMICA ACTA
·
2020
·Vol. 187
·期 5
·1-8
·
IF 6.232
Lin Yanna,Sun Yuanling,Dai Yuxue,Zhu Xiaodong,Liu Hao,Han Rui,Gao Dandan,Luo Chuannan,Wang Xueying
Lysozyme aptamer-functionalized magnetic alginate hydrogel was prepared for separation and enrichment of lysozyme. Luminol-labeled aptamer was used as a signal tag, and the signal tag was adsorbed on magnetic carboxylated carbon nanotubes based on the π-interaction. When lysozyme was added, the aptamer specifically binds to the lysozyme, causing the signal tag to detach from the magnetic carboxylated carbon nanotubes. When the aptamer/lysozyme complex bound to the complementary single strand of aptamer on the hemin@HKUST-1, lysozyme was released. The released lysozyme can be recombined with the signal tag adsorbed on the magnetic carboxylated carbon nanotube, allowing more signal tag to be dispersed into the solution. Determination of lysozyme was achieved by releasing the luminol-labeled aptamer to generate a chemiluminescence signal at a wavelength of 425 nm. It was proved by experiments that the synthesized hemin@HKUST-1 had a strong catalytic effect on the luminol-NaOH-H 2 O 2 system. The chemiluminescence signal was increased nearly 100 times. The complementary pairing allowed the luminol to be immobilized on the surface of hemin@HKUST-1. The generation and consumption of short-lived reactive oxygen species were concentrated on the surface of the MOFs, which improves the chemiluminescence efficiency. The introduction of hemin@HKUST-1 and DNA solved the defects of chemiluminescence analysis. The chemiluminescence assay was able to detect lysozyme with linear range of 1.05 × 10 −6 U∙mg −1 (6.00 × 10 −13 mol∙L −1 )–1.25 × 10 −2 U∙mg −1 (7.14 × 10 −9 mol∙L −1 ); the detection limit was 3.50 × 10 −7 U∙mg −1 (2.00 × 10 −13 mol∙L −1 ) ( R 2 = 0.99). The recovery of lysozyme in spiked saliva samples was 97.4–102.8%.
Schematic presentation of chemiluminescence assay. Lysozyme (Lys) was captured by aptamer-modified magnetic sodium alginate (M-Alg-Apt); Glycine (pH = 2) as eluent for Lys. Luminol-modified Apt (Apt-luminol) as signal tag; magnetic carbon nanotubes (MCNTs) as adsorption matrix; cDNA was complementary to Apt; hemin@HKUST-1 as catalyst.
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NEW JOURNAL OF CHEMISTRY
·
2020
·Vol. 44
·期 17
·7065-7070
·
IF 3.288
Wanqing Zhang,Shaohua Wei,Wenlong Tang,Kang Hua,Cheng-xing Cui,Yalei Zhang,Yuping Zhang,Zheng Wang,Shouren Zhang,Lingbo Qu
A superhydrophobic copper foam (CF) with excellent robustness and durability was successfully fabricated by using an in situ growth method combined with surface hexadecanethiol (HDT) modification of HKUST-1/CF. The wettability mechanism for the conversion of the superhydrophilic to superhydrophobic states was clarified and explored via density functional theory (DFT). The as-prepared HKUST-1/HDT/CF surface possessed good superhydrophobicity under the optimal conditions including the mass ratio of copper nitrate trihydrate (Cu(NO3)2·3H2O) to 1,3,5-benzenetricarboxylicacid (H3BTC), HDT immersion time, in situ growth time and hydrothermal reaction temperature. The superhydrophobic surface can maintain a desirable hydrophobic state after immersing in different pH solutions, abrasion of weight, and continuous ultrasonic testing. The highest water contact angle (WCA) value of the obtained samples was 162.9° under the aforementioned harsh conditions. Additionally, the superhydrophobic CF has a bright future in the field of oil/water separation due to the obtained HKUST-1/HDT/CF surface with excellent water-repellent performance.
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ANALYTICA CHIMICA ACTA
·
2019
·
IF 5.256
Guojun Cao,Can Wu,Yong Tang,Chidan Wan
Herein, graphite nanosheets (GN) were first prepared through simple liquid-phase exfoliation of graphite powder in N, N -dimethylacetamide (DMAC). After then, ultrasmall Cu-based metal organic frame (HKUST-1) nanoparticles (less than 5 nm) were in-situ anchored on the surface of graphite nanosheets with high degree of dispersion. Due to the intrinsic structural advantages of the as-synthesized HKUST-1 nanoparticles decorated graphite nanosheets (HKUST-1/GN) hybrids, including superior electron transfer ability and the greatly enhanced adsorption property, HKUST-1/GN shows excellent electrochemical sensing performance toward DNA damage biomarker 8-hydroxy-2’-deoxyguanosine with fast detection speed (∼240 s), wide linear window (10 nM–1 μM), high sensitivity (346857 μA mM −1 cm −2 ), low detection limit (∼2.5 nM), and good reproducibility. As a result, a highly sensitive electrochemical sensing platform for the detection of DNA damage biomarker 8-hydroxy-2’-deoxyguanosine was fabricated basing the as-prepared HKUST-1/GN hybrids. What is more, the developed electrochemical method was successfully used for the detection of real samples and exhibited satisfied result.
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LANGMUIR
·
2024
·
IF 3.7
Qiqi Huang,Fuxiao Zhu,Feiyan Xiao,Gongliang Zhang,Hongman Hou,Jingran Bi,Shuang Yan,Hongshun Hao
In recent years, piezo-photocatalysis has become a promising strategy for solving environmental pollution problems by adding additional mechanical energy to the photocatalysis process. This work reported the effective synthesis of a variety of HKUST-1/BiVO4 heterogeneous materials by combining monoclinic BiVO4 and porous HKUST-1 semiconductors. The piezo-photocatalytic properties of HKUST-1/BiVO4 were studied by the reduction of hexavalent chromium (Cr(VI)) under visible-light irradiation and ultrasonic waves. In the piezo-photocatalysis process, the best reduction rates among as-prepared HKUST-1/BiVO4 composites were up to 96.20% of 10 ppm Cr(VI) solution, which was approximately 1.80 times that under visible light and about 4.13 times that under ultrasound. Under the action of the piezoelectric potential, the availability of free radicals increased the reduction rate of Cr(VI) and reached a synergistic effect of 1.14-fold.
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INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
·
2024
·
IF 7.7
Zicheng Chen,Xuefeng Zhang,Kai Xu,Xiangyang He,Junkai Li,Lanhe Zhang,Guanhua Wang
As a cellulose-derived material, nanocellulose possesses unique properties that make it an ideal substrate for various functional composite materials . In this study, we developed a novel composite membrane material capable of adsorbing and photo-catalyzing formaldehyde by immobilizing HKUST-1 (copper open framework composed of 1,3,5-benzenetricarboxylic acid) onto NFC (Nano-fibrillated cellulose) membranes and subsequently loading modified carbon nitride . The synthesized CNx@HN composite membrane (consisting of NFC membrane with anchored HKUST-1 and modified g-C 3 Nx nanosheets) was thoroughly characterized, and its photocatalytic degradation performance towards low concentrations of formaldehyde (3.0 mg/m 3 ) was investigated. The results demonstrated that HKUST-1's porous nature exhibited a concentrated adsorption capacity for formaldehyde, while the modified CNx (Modified g-C 3 Nx nanosheets) displayed robust photocatalytic degradation of formaldehyde. The synergistic effect of HKUST-1 and modified CNx on the NFC membrane significantly enhanced the efficiency of formaldehyde degradation. Under xenon lamp irradiation, CNx@HN-5 achieved a total removal efficiency of 86.9 % for formaldehyde, with a photocatalytic degradation efficiency of 48.45 %, showcasing its exceptional ability in both adsorption and photocatalytic degradation of formaldehyde. Furthermore, after 10 cycles of recycling, the composite membrane exhibited excellent stability for the photocatalytic degradation process. Therefore, this study presents a green and facile strategy to fabricate nanocellulose-supported composite membranes with great potential for practical applications in formaldehyde degradation.
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SEPARATION AND PURIFICATION TECHNOLOGY
·
2024
·
IF 8.1
Liming Liu,Junjie Li,Sidra Subhan,Xin Yu,Zhonghe Liu,Rubiao Chen,Jiguang Deng,Hongbing Ji,Zhongxing Zhao,Zhenxia Zhao
A major challenge in utilizing metal–organic frameworks (MOFs) for volatile organic compound (VOC) capture was their inclination for strong adsorption, which consequently impeded desorption and elevated energy demand. To overcome this challenge, the construction of HKUST-1@Cu nanofibers (HK@Cu-NF) with thermal conductive adsorption sites was proposed to synchronous enhance toluene adsorption and desorption efficiency for VOCs capture. In this work, Cu-based HKUST-1 was designed to grow on Cu nanofibers, and formed uniform coverage MOF layer with tight connection via homologous Cu self-transformation growth strategy. The synthesized composite was proved to maintain high surface area (1473 m 2 /g) and generate abundant unsaturated Cu sites on its nanointerface based from the thermally conductive Cu nanofibers. This unique connection structure endowed these adsorption sites with high affinity towards toluene and high thermal conductivity as well, and finally formed thermal conductive adsorption sites. As a result, HK@Cu-NF composite (80 % loading of HKUST-1) exhibited 1.9 times higher of toluene adsorption capacity at P / P 0 = 0.002 and >3 times higher of thermal diffusivity than pure HKUST-1. Furthermore, it achieved enhancement in both adsorption and desorption efficiency for toluene, which reached 4.8 and 6.9 times of pure HKUST-1. Therefore, construction of thermal conductive adsorption sites successfully improved the adsorption efficiency and regeneration efficiency for VOCs capture, and realized the low energy VOCs desorption process.
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Journal of Energy Storage
·
2025
·
IF 9.8
Tian Zhao,Shilin Peng,Jiangrong Yu,Jiayao Chen,Fuli Luo,Kar Keng Lim,Hafiz Hamsan,Nurul Syakirah Nazri
This study examines how the morphology of HKUST-1-based cellulose separators affects the performance of aqueous zinc-ion batteries. Zinc-ion batteries are attractive for large-scale energy storage due to their safety, low cost, and environmental benefits, but challenges like zinc dendrite formation and cathode instability remain. Three HKUST-1 morphologies (orthorhombic octahedral, semi-fused, and fully-fused) were synthesized and integrated with cellulose nanofibers to create composite separators. The fully-fused HKUST-1 (F-HK) separator demonstrated superior performance due to its amorphous network structure, which enhanced mechanical strength, promoted uniform zinc-ion deposition, and suppressed dendrite growth. In Zn//Cu half-cells, the F-HK separator exhibited a low nucleation overpotential of 47 mV and an average Coulombic efficiency of 99.98 % over nearly 500 cycles. In Zn//MnO 2 full cells, it retained over 80 % capacity after 400 cycles at 1 A·g −1 with near-100 % Coulombic efficiency. Additionally, the F-HK separator showed significantly enhanced mechanical strength compared to pristine cellulose separators. The findings underscore the pivotal role of morphology in enhancing separator performance and offer meaningful insights for creating high - performance MOF - based separators for aqueous zinc - ion batteries.
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JOURNAL OF ELECTROANALYTICAL CHEMISTRY
·
2024
·
IF 4.1
Haoqing Tang,Yulan Wang,Xiaohuan Liu,Tian Tian,Qiang Weng,Xiaotong Liu,Tao Liu
Rational design and preparation of titanium-based anode materials with superior fast charge and discharge are a key focuses of the lithium-ion batteries research. Herein, a novel and facile synthesis of uniformly carbon-coated Li 2 CuTi 3 O 8 (LCuTO) nanoparticles with excellent high-rate lithium storage properties is presented using HKUST-1 with pore structure and active metal sites as a copper source. The well-designed LCuTO@HKUST with carbon bridges between the particles and the carbon layer on the outer surface offers high electronic conductivity for fast charge and discharge. The LCuTO@HKUST exhibits extraordinary lithium storage performance: high capacity (251.8 mAh/g after 1000 cycles at a current density of 1.0 A/g), a superior high-rate capability (160.3 mAh/g after 500 cycles at 3.0 A/g and 138.1 mAh/g after 500 cycles at 5.0 A/g), and excellent cycle reversibility and cycle stability under various current densities. In addition, the lower Li + migration barrier in LCuTO@HKUST demonstrated by density functional theory (DFT) calculations is beneficial to the long-cycle stability and high-rate performance. The proposed preparation method and the strategy of using the MOF as a metal source for lithium-ion battery anode materials provide a new approach for advanced fast charge–discharge energy storage applications.
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Molecular Catalysis
·
2021
·
IF 5.062
Jiarong Li,Zhe Liu,Guangfa Hu,Ruimin Gao,Ronglan Zhang,Jianshe Zhao
A series of hybrid catalyst PMoW@HKUST-1@ZSM-5-MCM-41 was prepared in which H 3 PMo 6 W 6 O 40 were supported in the pore of micro/mesoporous materials ZSM-5-MCM-41 and HKUST-1 by one-pot method. Five types of ZSM-5-MCM-41 were prepared and corresponding ODS catalysts PMOW@HKUST-1@ZSM-5-MCM-41 were synthesized. The prepared catalysts were characterized and the most efficient catalyst was selected by XRD, FT-IR, UV–vis, N 2 adsorption-desorption, SEM, TEM. The removal of DBT reached 98.13 % by using PMoW@HKUST-1@ZSM-5-MCM-41−2 under 60 °C with molecular oxygen as oxidant after 150 min. After desulfurization, the catalyst can be simply recovered and reused 7 times with an unnoticeable decrease in catalytic activity, indicating the successful combination of heteropolyacids and micro/mesoporous materials for desulfurization.
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RSC Advances
·
2019
·Vol. 9
·期 71
·41591-41602
·
IF 3.049
Yu Qiao,Qian Han,Dong Li,Hongji Li,Bing Wei,Guangbo Che,Wei Jiang,Weisheng Guan
A novel Ag/metal–organic framework/graphitic carbon nitride (Ag/HKUST-1/g-C3N4, AHC) photocatalyst was prepared via an in situ growth strategy and photo-deposition technique for environmental remediation. The as-obtained samples were characterized by X-ray diffraction (XRD), transmission electron microscopy (TEM), scanning electron microscopy (SEM), X-ray photoelectron spectroscopy (XPS), N2 adsorption–desorption isotherm measurement, UV-vis diffuse reflection spectroscopy (UV-vis DRS), and photoluminescence (PL) spectroscopy. The results indicated that the hybrids have large surface area, mesoporous structure and enhanced visible-light absorption. The as-prepared hybrid samples exhibited considerable improvement in photocatalytic activity and stability for rhodamine B (RhB) degradation under visible light irradiation (λ > 420 nm). In addition, they also have good adsorption properties. Compared to the pure g-C3N4 and Ag/g-C3N4, the 5% AHC photocatalyst showed superior photocatalytic activity. Moreover, 5% AHC exhibits good photocatalytic activity even after four cycles. Additionally, the active species trapping and electron spin resonance (ESR) experiments indicated that h+ and ·OH were the main active species.
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CHEMICAL ENGINEERING JOURNAL
·
2026
·
IF 13.2
Liuzi Du,Xiaodong Zhai,Jianchun Wu,Xiaowei Huang,Xiaobo Zou,Zhihua Li
To address the challenge of short shelf life and microbial contamination in food preservation, this study aims to develop an intelligent pH-responsive antibacterial fiber film with controlled release capability. The modification of alkaline lignin improved the structural stability and specific surface area of HKUST-1 (from 547 to 1483 m 2 /g), while the composite film exhibited excellent mechanical properties (tensile strength: 3.74 MPa, elongation: 96.25%) and hydrophobicity (water contact angle: 120.55°). The film exhibited strong pH-dependent controlled release, with 81% of antibacterial agents released at pH 6.0 within 120 h. In vitro antibacterial tests demonstrated broad-spectrum activity against Escherichia coli ( E. coli ), Staphylococcus aureus ( S. aureus ), and Pseudomonas aeruginosa ( P. aeruginosa ). When applied to beef preservation, the film significantly reduced total volatile basic nitrogen (15.35 mg/100 g), total viable count (6.23 log CFU/g), and pH (6.02) after 9 days of storage, extending the shelf life by 4 days compared to the control. This work provides a feasible strategy for developing intelligent pH-controlled-release antibacterial packaging materials.
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ACS Applied Materials & Interfaces
·
2016
·
IF 7.145
Qingxiang Wang,Yizhen Yang,Feng Gao,Jiancong Ni,Yanhui Zhang,Zhenyu Lin
A novel metal–organic framework (MOF)-based electroactive nanocomposite containing graphene fragments and HKUST-1 was synthesized via a facile one-step solvothermal method using graphene oxide (GO), benzene-1,3,5-tricarboxylic acid (BTC), and copper nitrate (Cu(NO3)2) as the raw materials. The morphology and structure characterization revealed that the GO could induce the transformation of HKUST-1 from octahedral structure to the hierarchical flower shape as an effective structure-directing agent. Also, it is interesting to find out that the GO was torn into small fragments to participate in the formation of HKUST-1 and then transformed into the reduction form during the solvothermal reaction process, which dramatically increased the surface area, electronic conductivity, and redox-activity of the material. Electrochemical assays showed that the synergy of graphene and HKUST-1 in the nanocomposite leaded to high electrocatalysis, fast response, and excellent selectivity toward the reduction of hydrogen peroxide (H2O2). Based on these remarkable advantages, satisfactory results were obtained when the nanocomposite was used as a sensing material for electrochemical determination of H2O2 in the complex biological samples such as human serum and living Raw 264.7 cell fluids.
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