MICROCHEMICAL JOURNAL
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2024
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IF 4.9
Lixia Luo,Jinglin Shui,Yingying Gu,Dandan Wang,Jiangyang Qin,Yanan Wang,Yong Mei
In order to detect the cervical cancer biomarker squamous cell carcinoma antigen (SCCA) in human serum, an electrochemical immunosensor was constructed. Zirconium 1,4-dicarboxybenzene MOF (UiO-66), with a high specific surface area, was coupled with gold nanoparticles (AuNPs), creating the UiO-66@AuNPs nanomaterial. This coupling increased the sensitivity of the electrochemical immunosensor by providing many biological binding sites for antibodies to bind to Au-S bonds. Then, mesoporous carbon (CMK-3) was added to the UiO-66@AuNPs nanomaterial to obtain a CMK-3@UiO-66@AuNPs nanocomposite. This further increased the electron transfer proficiency of the material and enhanced the electrochemical signal. Finally, the sensitive detection of squamous cell carcinoma antigen (SCCA) was made possible by unique immunological responses between antigens and antibodies. Transmission electron microscopy (TEM) analysis of CMK-3@UiO-66@AuNPs revealed embedded surfaces and voids; cyclic voltammetry (CV) and electrochemical impedance spectroscopy (EIS) confirmed the successful assembly of the electrochemical immunosensor. The developed electrochemical immunosensor demonstrated good linearity (R 1 2 = 0.999) from 0.01 pg/mL to 10,000 pg/mL, which is the concentration range of SCCA in human serum. The limit of detection was 0.0034 pg/mL (at an S/N ratio of 3). The immunosensor exhibited excellent precision, stability and selectivity, with a high rate of recovery (98.26–101.8 %). The experimental validation studies demonstrated that the electrochemical immunosensor was effective for the detection of SCCA in human serum, offering a novel method for the early diagnosis and dynamic surveillance of cervical cancer.
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高影响因子
SOLID STATE SCIENCES
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2024
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IF 3.4
Nan Li,Mianmian Wu,Zhimin Guo,Qingfei Li,Guifang Sun,Wenjing Shen,Minghao Shi,Jiangquan Ma
Piezoelectric materials can harvest mechanical energy and convert it into electrical energy, which have lately become highly effective catalysts to sustainable eliminate pollutants. Here, by adding different surfactants to metal-organic framework adenine-UiO-66 (AD-U) materials, the metal-organic framework adenine-UiO-66 (AD-U-S) modified by sodium dodecyl benzene sulfonate (SDBS) and the metal-organic framework adenine-UiO-66 (AD-U-C) modified by cetyltrimethylammonium bromide (CTAB) were prepared for the first time. With the antibiotic diclofenac sodium (DCF) as the target pollutant, the degradation efficiencies of AD-U-S (0.30) and AD-U-C (0.30) were 98 % and 78 % in 30 min, respectively. Specially, the reaction rate constant of AD-U-S (0.30) is 3.5 times that of AD-U-C (0.30). The performance improvement is due to the larger specific surface area, stronger ferroelectric properties , enhanced oxidation capability and higher charge transfer efficiency of AD-U-S (0.30) than that of AD-U-C (0.30). The capture experiments showed that ‧OH and h + were the main active species on AD-U-S (0.30) and AD-U-C (0.30) during the removal of DCF. In addition, possible pathways for DCF piezodegradation were obtained by liquid-phase mass spectrometry and DFT calculations. This study is benefit to promote the development of piezocatalytic technology for wastewater treatment.
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高影响因子
APPLIED CATALYSIS A-GENERAL
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2024
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IF 4.7
Yating Xie,Nicui Yuan,Hongyang Liu,Lukai Luo,Jun Gong,Xiping Yin,Tengfei Li,Yonghua Zhou
Defect engineering by creating oxygen vacancies (OVs) and heterogeneous frustrated Lewis acid-base pairs (FLPs) emerged as an efficient strategy to enhance the selective conversion CO 2 to CH 4 . Considering the intrinsic FLPs contained in UiO-66-NH 2 (UNH for abbreviation), in this paper, the OVs was introduced therein by fabricating the Ce-doped UNH (denoted as UNH(Ce/Zr)) via one-step solvothermal route. The as-prepared UNH(Ce/Zr) catalyst exhibited the CH 4 yield of 31.02 μmol·g −1 ·h −1 accompanied with the CH 4 selectivity of 93 % and satisfying recycling stability. The XRD, SEM, FT-IR, XPS, TG, TPD and NH 3 in situ DRIFTS and in situ FT-IR characterization results justified that the UNH(Ce/Zr) possess the obviously increased OVs sites and enhanced Lewis acidic and basic properties. Additionally, the photoelectrochemical characterization results showed that UNH(Ce/Zr)−0.014 efficiently improved photogenerated electron-hole separation efficiency and charge transfer rate. It could be concluded that it was the cooperative action of OVs and FLPs that led to the high CH 4 selectivity and CH 4 yield.
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Journal of Environmental Chemical Engineering
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2024
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IF 7.4
Yongbo He,Mengqi Liu,Linzhi Zhai,Hongshuang Li,Peng Song,Xiufang Zhu,Yubin Tang
The metal organic framework (MOF) polycrystalline membranes on stainless steel mesh (SSM) are urgently required for effective oil-water separation, but the affordable preparation still remains a challenge. Herein, we report a series of UiO-66-NH 2 /SSM films, which are developed by a rational ‘seeding-assisted secondary growth’ method. Results depict that the proposed method greatly shortens the synthesis time, and helps to achieve a continuous and uniform modification of UiO-66-NH 2 on SSM, and hence contributes to a superior hydrophilicity and superoleophobicity for UiO-66-NH 2 /SSM with minimum water contact angle of 32° and maximum underwater oil contact angle of 150°, respectively. Specifically, the UiO-66-NH 2 /SSM-600–2 has total permeation fluxes and separation efficiencies of ca. 8.4×10 4 L·m −2 ·h −1 and 100% for the n-hexane-, petroleum ether- and chloroform-water emulsions (1% volume ratio), which exceed numerous polycrystalline membranes reported so far. It also exhibits a great durability with only 0.1% loss of separation efficiency after 8 cycles. Furthermore, outstanding acid-resistivity and salt-tolerance are also presented. Our work supplies a new strategy to construct UiO-66-NH 2 /SSM, and the decent properties confirm a huge potential for practical use in oil-water separation.
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高影响因子
Materials Today Communications
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2025
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IF 4.5
Jiahua Cheng,Linya Fei,Xiaoqing Zhou,Beibei Lu,Zhihui Zhang,Le Chen,Guojian Ji
UiO-66 and its functionalized derivatives (UiO-66-X, X = -OH, -NO 2 , -NH 2 ) were successfully synthesized via a solvothermal method, and their structural integrity and functionalization were confirmed. Hydrogen adsorption experiments and Grand Canonical Monte Carlo (GCMC) simulations demonstrated that UiO-66-OH exhibited the highest hydrogen adsorption capacity. At 300 K and 1 bar, its experimental adsorption capacity reached 0.0301 wt%, representing increases of 29.18 %, 3.44 %, and 19.92 % compared to UiO-66, UiO-66-NH 2 , and UiO-66-NO 2 , respectively. At 77 K and 20 bar, its simulated adsorption capacity reached 2.352 wt%, surpassing UiO-66-NH 2 (2.229 wt%) and UiO-66-NO 2 (1.927 wt%). This superior performance is attributed to optimized pore structure and enhanced functional group interactions, providing new insights for optimizing hydrogen storage in UiO-66 materials.
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高影响因子
JOURNAL OF APPLIED POLYMER SCIENCE
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2024
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IF 2.7
Zhaohuang Zhong,Lang Li,Siwei Yu,Xindong Li,Haike Li,Jianghui Jia,Jiaju Huang,Meng Cai,Wanfu Huang
With the growing complexity of separation systems, the application of thin film composite nanofiltration (TFN) membranes in organic solvent separation faces numerous challenges. To augment its solvent stability, an in-situ constructed dopamine hydrogel doped with UiO-66@CNT was developed as an intermediate layer on a polyetherimide (PEI) ultrafiltration membrane. Subsequent interfacial polymerization on this interlayer led to the formation of a solvent-resistant nanofiltration membrane with a vast covalent bond structure, large specific surface area, and enhanced hydrophilicity. Our findings revealed that when the CNT loading in the UiO-66@CNT composite nanoparticles was 2 wt%, the TFN-U 2 C 2 membrane exhibited a maximum pure water flux of 126.32 L/(m 2 ·h) and a methanol flux of 45.45 L/(m 2 ·h). The rejection rates for Congo red aqueous and methanol solutions were 96.88% and 92.14%, respectively. The membrane also demonstrated commendable anti-fouling properties. Remarkably, even after 48 h of immersion in various organic solvents, the membrane retained its morphology and separation efficiency. Compared to the TFN-U 2 membrane without CNT addition, the enhancement in separation performance was considerably significant. Hence, this membrane has significant potential for application in treatment of wastewater containing organic solvents and is promising in related fields.
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SEPARATION AND PURIFICATION TECHNOLOGY
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2024
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IF 8.1
Yan Huang,Qiang Zuo,Mengyang Yin,Jingzhen Wang,Boqiang Gao,Jia Song,Xiaodang Tang,Yali Zhang,Shuanglong Ma,Dangling Hua,Rui Wang
The efficient removal of H 2 S is necessary for clean production and energy safety. However, industrial gases are usually accompanied by CO 2 significantly affecting desulfurization effects. Hence, novel imprinted adsorbents (PMo 12 @UiO-66@H 2 S-MIP-CDs) were synthesized through surface imprinting technology using cyclodextrins (CDs) as molecular scaffolds and UiO-66 modified by phosphomolybdic acid (PMo 12 @UiO-66) as a support. Wherein, PMo 12 @UiO-66@H 2 S-MIP-β-CD was determined as the optimal adsorbent since β-CD with low solubility is prone to keep its inherent cavity to promote dispersion of imprinted polymers and enrich internal pore channels. H 2 S capacity of PMo 12 @UiO-66@H 2 S-MIP-β-CD (31.67 mg/g) was about 2.4 and 1.7 times that of PMo 12 @UiO-66 and PMo 12 @UiO-66@H 2 S-MIPs, respectively, revealing the remarkable contribution of β-CD as a molecular scaffold to improve desulfurization. The results showed that PMo 12 @UiO-66@H 2 S-MIP-β-CD can maintain stable desulfurization efficiency regardless of the presence of CO 2 or moisture, and O 2 can strengthen the redox reaction between H 2 S and PMo 12 accompanied by the increased reduction degree of Mo 6+ in PMo 12 . After five adsorption-regeneration cycles, PMo 12 @UiO-66@H 2 S-MIP-β-CD still exhibited ideal removal efficiency. The excellent desulfurization performance is mainly ascribed to the selective adsorption role of H 2 S-MIP-β-CD and oxidative removal ability of PMo 12 . This work provides a valuable reference for the directional design of high-capacity functional adsorbents for room-temperature desulfurization.
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ELECTROCHIMICA ACTA
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2024
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IF 5.5
Zixuan Wang,Juan Peng,Houlin Li,Ganghui Chu
Luteolin is a variety of bioactive flavonoids, it is of great significance to quickly and accurately determine the content of luteolin. This paper established a simple and rapid ratiometric electrochemical sensor for the sensitive determination of luteolin. Nano-flowering zirconium-based metal-organic frameworks (UiO-66) were synthesized and silver nanoparticles (AgNPs) were directly grown on the surface of UiO-66 to prepare AgNPs@UiO-66 composites. Then, AgNPs@UiO-66 was drop-coated on the electrode surface to prepare the ratiometric electrochemical sensor. AgNPs@UiO-66 has the dual function of providing a stable internal reference signal and enhancing the electrochemical signal. Under optimal conditions, the peak current of luteolin (I Luteolin ) increased with increasing luteolin concentration, while the peak current of AgNPs@UiO-66 (I AgNPs@UiO-66 ), which is used as an internal reference signal, remained relatively stable. I Luteolin /I AgNPs@UiO-66 showed a good linear relationship in the range of 0.07 - 0.9 μM and 0.9 - 40 μM, and the limit of detection (LOD) was 0.017 μM (S/ N = 3). The sensor detected luteolin in peanut shells with recoveries ranging from 96.7 % to 107 %, which agreed with ultraviolet-visible spectroscopy. These results demonstrate the possibility of this ratiometric electrochemical sensor for detecting luteolin in real life.
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高影响因子
ANALYTICA CHIMICA ACTA
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2024
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IF 5.7
Li Li,Lin-Lin Zhang,Jin Zou,Jiamin Zou,Lu-Ying Duan,Yansha Gao,Guanwei Peng,Xigen Huang,Limin Lu
Background Lanthanide metal-organic frameworks (Ln-MOFs) are a kind of emerging crystalline porous materials with high fluorescence and easy-to-tunable properties, making them ideal for sensing applications. However, current Ln-MOFs based fluorescent probes are primarily single-emissive or fluorescence-quenched, which greatly limited the detection performances such as sensitivity, accuracy and repeatability, thereby hindering their applications in efficient target monitoring and related disease diagnosis. To address these issues, the reasonable design of Ln-MOFs equipped with dual fluorescence emissions and light-up mode is urgently needed for a high-performance biosensor . Results A dual-emissive europium doped UiO-66 (Eu@UiO-66-NH 2 -PMA)-based ratiometric fluorescent biosensing platform was constructed for highly sensitive and selective detection of the histidinemia biomarker-histidine (His). Eu@UiO-66-NH 2 -PMA (pyromellitic acid abbreviated as PMA) was synthesized utilizing a post-synthetic modification method via coordination interactions between the free –COOH of UiO-66-NH 2 -PMA and Eu 3+ , which exhibited characteristic peaks of broad ligand emission and sharp Eu 3+ emissions simultaneously. Considering that Cu 2+ had the excellent fluorescence quenching ability toward Eu 3+ and superior affinity with His, it was deliberately introduced into the Eu@UiO-66-NH 2 -PMA, acting as active sites for target His responsiveness. The Eu@UiO-66-NH 2 -PMA/Cu 2+ /His ternary competition system demonstrated a low detection limit of 74 nM, excellent selectivity and good anti-interference capability that allowed for sensitive analysis of His levels in milk and human serum samples. Significance Attributing to the superior luminescent properties, good stability and self-calibration capability of Eu@UiO-66-NH 2 -PMA, the developed ratiometric light-up sensing platform enabled sensitive, selective and credible analysis of His in complex practical samples, which might provide an available tool for food nutrition guideline and diagnostic applications of His related diseases.
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PubMed
高影响因子
Nano Research
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2024
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IF 9.5
Huang Danru,Wu Lin,Kang Qi,Shen Zhiyong,Huang Qiaosheng,Lin Wenjie,Pei Fei,Huang Yunhui
Solid-state polymer electrolytes (SPEs) are candidate schemes for meeting the safety and energy density needs of advanced lithium-based battery because of their improved mechanical and electrochemical stability compared to traditional liquid electrolytes. However, low ionic conductivity and side reactions occurring in traditional high-voltage lithium metal batteries (LMBs) hinder their practical applications. Here, amino-modified metal-organic frameworks (UiO-66-NH 2 ) with abundant defects as multifunctional fillers in the polyurethane based SPEs achieve the collaborative promotion of the mechanical strength and room temperature ionic conductivity. The surface modified amino groups serve as anchoring points for oxygen atoms of polymer chains, forming a firmly hydrogen-bond interface with polycarbonate-based polyurethane frameworks. The rich interfaces between UiO-66-NH 2 and polymers dramatically decrease the crystallization of polymer chains and reduce ion transport impedance, which markedly boosted the ionic conductivity to 2.1 × 10 −4 S·cm −1 with a high Li + transference numbers of 0.71. As a result, LiFePO 4 ∣SPEs∣Li cells exhibit prominent cyclability for 700 cycles under 0.5 C with 96.5% capacity retention. The LiNi 0.6 Co 0.2 Mn 0.2 O 2 (NCM622)∣SPEs∣Li cells deliver excellent long-term lifespan for 260 cycles with a high capacity retention of 91.9% and high average Coulombic efficiency (98.5%) under ambient conditions. This simple and effective hybrid SPE design strategy sheds a milestone significance light for high-voltage Li-metal batteries.
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高影响因子
LANGMUIR
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2025
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IF 3.9
Rui Cao,Xinxin Li,Zhihang He,Hanxiao Tang,Xiao-Ke Zheng,Zhijuan Zhang
The development of probes for the efficient detection of volatile organic compounds is crucial for both human health protection and environmental monitoring. In this study, we successfully synthesized a ratiometric fluorescent sensing material [Eu-UiO-67 (1:1)], featuring dual-emission fluorescence peaks via a one-pot method. This material demonstrated exceptional ratiometric fluorescence recognition properties for liquid styrene and isoprene, achieving low limit of detections (LODs) of 6.2 and 20.24 ppb, respectively. Furthermore, we leveraged its outstanding photoluminescence properties to fabricate a Eu-UiO-67 film, which exhibited distinctive fluorescence responses toward gaseous styrene and isoprene. This unique behavior resulted in LODs of 12.42 ppb for gaseous styrene and 15.39 ppb for gaseous isoprene. The investigation into the sensing mechanisms revealed that the fluorescence response for styrene was mediated by an internal filtration effect, which arose from the competitive energy absorption between styrene and the Eu-UiO-67 (1:1) material. In contrast, fluorescence resonance energy transfer occurred between isoprene and the Eu-UiO-67 (1:1) materials. This approach offers a sensitive and reliable method for the detection of liquid/gaseous styrene and isoprene.
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PubMed
高影响因子
SEPARATION AND PURIFICATION TECHNOLOGY
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2025
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IF 9
Zheng Dong,Yangyang Xin,Bowen Xiang,Baolu Cui,Ruilu Yang,Wenwu Zhou,Jianwei Liu,Jiadi Li,Shuangshuang Long,Libing Qian,Xinxin Che,Jinwen Fan,Zhiyuan Yang,Yaping Zheng,Dechao Wang
Porous liquids（PLs）are a new type of material that combines the permanent cavities of porous solids with the fluidity of liquids, and they have presented broad application prospects in gas capture and separation. However, non-covalent forces are introduced between pore generators and sterically hindered solvents in order to reduce the weak intermolecular forces that often lead to self-aggregation of pore generators. This will result in the formation of an interface layer with direct interactions between pore generators and sterically hindered solvents. Therefore, it is inevitable that the pores and adsorption sites of pore generators will be largely occupied and blocked, leading to a decrease in the sorption capacity of PLs. Herein, we propose a novel interface-protection strategy achieved by introducing a functional interface layer for preparing type III PLs, where UiO-66 is used as the pore generators. And then, SiO 2 is grown on the surface of UiO-66 via the tetraethyl orthosilicate (TEOS) hydrolysis process, thus obtaining a new pore generator UiO-66@SiO 2 with controllable layer thicknesses of SiO 2 . Next, PLs are constructed by using UiO-66@SiO 2 as the new pore generator and 1-butyl-3-methylimidazolium hexafluorophosphate (BMIMPF 6 ) as the sterically hindered solvent, respectively. Thus, the constructed SiO 2 layer transforms the direct interaction between pore generators and sterically hindered solvents, which can protect the internal adsorption sites and pore structures to a large extent. Notably, UiO-66@SiO 2 -PL demonstrates not only promising CO 2 sorption capacity but also excellent CO 2 /N 2 and CO 2 /CH 4 separations. More importantly, the proposed idea of the interface-protection strategy opens a new horizon for constructing PLs with superior separation performance considering the abundant libraries of pore generators and sterically hindered solvents.
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危险品化学品经营许可证（带存储）