ACS Applied Nano Materials
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2025
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IF 5.5
Zixu Wang,Linna Han,Qing Xia,Wanfang Feng,Songtao Li,Liyan Liu
Enrichment and quantification of sugar phosphates (SPx) in biological samples are of great significance in biological medicine. In this work, a magnetic nanoscale metal–organic framework composite, Fe3O4@UiO-66-NO2, was synthesized and utilized as a high-capacity adsorbent for the enrichment of SPx in biological samples. Fe3O4@UiO-66-NO2 exhibited a high specific surface area (310.02 m2/g), a suitable pore size (3.47 nm), and strong magnetism (14.99 emu/g), enabling convenient separation and recovery. Experimental results demonstrated that Fe3O4@UiO-66-NO2 exhibited excellent adsorption performance for five types of SPx, achieving complete adsorption within 6 min at a dosage of 200 μg, and the adsorption process exhibited pH tolerance. The adsorption isotherm result indicated that the maximum adsorption capacities for different SPx ranged from 234.06 mg/g to 403.24 mg/g. Adsorption mechanisms using X-ray photoelectron spectroscopy, FT-IR, and density functional theory revealed multiple interactions, such as coordination and hydrogen bonding, and contributed to the adsorption process. A magnetic nanoscale-dispersive solid-phase extraction protocol was developed based on a Fe3O4@UiO-66-NO2 for rapidly enriching SPx from biological samples. The protocol allowed for SPx detection over a wide linear concentration range, low limits of detection (0.001–0.02 ng/mL), high precision (<7.88%), and good accuracy (82.56%–119.66%). This protocol was successfully applied to real blood samples, prefiguring the great potential of magnetic MOFs for the enrichment and detection of SPx in biological samples.
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高影响因子
Nanoscale
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2025
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IF 5.1
Jin Wang,Tianlong Zhou,Jie Zou,Jianhang Hai,Yunqing Lu
Triboelectric nanogenerators (TENGs) have emerged as a promising technology to harvest energy from the environment due to their self-powered characteristics, simple structure, low cost and high flexibility. To improve their performance, this work proposes a hierarchical optimization strategy, which integrates the employment of polyimide (PI) matrix, the doping of metal-organic framework and the surface patterning of TENG triboelectric layers to achieve high output performance and durability. In the work, the PI/UIO-66-NH₂ mixed matrix membrane (MMM) is first synthesized and characterized, where the influence of UIO-66-NH₂ loading amount on the triboelectric properties of MMM is analyzed. The measurement results show that this MMM exhibits excellent dielectric properties and thermal stability. Subsequently, the TENG device operated in the vertical contact-separation mode is fabricated, where MMM is used as the negative triboelectric layer and pure PI membrane as the positive layer. Moreover, the surface patterning method based on soft imprint lithography is applied to both triboelectric layers to augment their effective contact areas. Then, the output performance of TENG is characterized. It is found that, for the weight ratio of UIO-66-NH₂ of 5 wt%, the patterned UIO-66-NH₂ MMM-based TENG (P-TENG-5) achieves a maximum output power density of 78.27 ± 3.42 μW/cm², which is 5.76 times higher than that of unpatterned TENG-5 and 361.35 times greater than that of pure PI-based TENG-0. Remarkably, P-TENG-5 maintained stable performance over 20,000 cycles at 2 Hz without the considerable performance degradation.
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DOI
PubMed
高影响因子
INORGANIC CHEMISTRY COMMUNICATIONS
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2025
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IF 5.4
Tursunjan Aydan,Nuermaimaiti Yimamu,Ding Kaize,Yao Zhengzheng,Guan Qingqing
Metal-organic frameworks (MOFs), particularly UiO-66, offer advantages in biomass catalytic conversion due to their good thermal stability, tunable porosity and abundant active sites. However, agglomeration limits their catalytic efficiency. To address this, a series of acid-base bifunctional UiO-66-type catalysts supported on biochar (BC) was developed in green solution through a one-pot method. BC prepared by pyrolyzing cotton stalks (CS) under N 2 atmosphere at high temperature and activated before use. The physico-chemical properties of materials were studied by various characterization methods, and their catalytic performance for converting cellulose to 5-hydroxymethylfurfural (5-HMF) in [BMIM]Cl ionic liquid was evaluated. Reaction parameters such as catalyst type, catalyst loading, temperature and time were optimized. Under the optimized conditions, achieving a 5-HMF yield of 46.58 %. The BC-supported catalyst NH 2 -UiO-66-SO 3 H/BC exhibited significantly higher catalytic activity than its unsupported counterpart and increased the 5-HMF yield by 23.78 %. This performance improvement is attributed to the grafted sulfonic/amino groups, which enhance the catalytic performance by improving the dispersion of UiO-66 upon the introduction of BC. This work demonstrates biochar-supported UiO-66 as an effective strategy for enhancing catalytic efficiency in sustainable biomass valorization to platform chemicals.
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高影响因子
ChemNanoMat
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2025
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IF 2.6
Muhammad Kashif Majeed,Arshad Hussain,Muhammad Akram,M.Umar Majeed,Muhammad Arshad,Adil Saleem,Rashid Iqbal
The precise manipulation of pore structure, organic linkers, and disposition of active and co-active sites in metal-organic frameworks (MOFs)-based materials allows for the design of materials with tailored catalytic properties. However, studies that address their kinetic, dynamic, and mechanistic roles in target reactions are scarce. The development of a new functionalization method to introduce acidity into MOFs is established for heterogeneous catalysis. Exploring the effect of ligand functionalization in MOF type UiO-66(Zr) impacts its ability to catalyze the dimerization reaction of cyclohexanone. Upon treatment with a series of linkers and the addition of HCl, chemically stable MOF structures such as UiO-66 can be protonated, resulting in an acidic group attached to aromatic terephthalate linkers in the structure. A general synthetic strategy has been developed to produce functionalized UiO-66-FG compounds [FG = NH2, NO2, Br, OH, and (OH)2]. The functionalized acidic frameworks present enhanced catalytic activity toward the self-condensation of cyclohexanone. Investigating these aspects can provide valuable insights into how the functionalization of MOFs performs in real-world self-condensation scenarios and help in optimizing their practical applications.
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OPTICAL MATERIALS
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2025
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IF 4.2
Haoran Zhang,Tianxi Feng,Song Ye,Deping Wang
In this research, the modified upconversion nanocrystals NaYF 4 :Yb,Er were adopted as the precursors for the synthesis of the NaYF 4 :Yb,Er@UiO-66 composite. The XRD, XPS and TEM characterizations indicated that the composite has good crystallinity and uniform morphology. Under 980 nm excitation, the NaYF 4 :Yb,Er@UiO-66 composite exhibits bright upconversion emission that characterized of Er 3+ : 2 H 11/2 → 4 I 15/2 , 4 S 3/2 → 4 I 15/2 , and 4 F 9/2 → 4 I 15/2 radiative transitions. After modified with BPEI (branched polyethyleneimine), the NaYF 4 :Yb,Er@UiO-66/BPEI fluorescence probe was constructed and was used for the detection of Cu 2+ . The results revealed that the integrated emission intensity of Er 3+ displayed a linear relationship with the concentration of Cu 2+ within the range of 5 to 45 μM with a LOD of 0.9615 μM. This study offered a feasible method for constructing UCNC@UiO-66 composites with regular morphology,which may have a potential application as fluorescent probes for the detection of various metal ions by adjusting the doping luminescent center.
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高影响因子
JOURNAL OF APPLIED POLYMER SCIENCE
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2025
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IF 2.8
Shuaiyang Jiang,Ya Liu,Yulu Liu,Dongfang Wang,Xiaofeng Wang,Qian Li
A portable home hemodialysis device is a miniaturized and easy-to-operate medical apparatus designed for patients with chronic kidney disease, enabling them to conveniently perform hemodialysis at home or while traveling. However, it imposes high requirements on the dialysis membrane in terms of dialysis efficiency, adsorption capacity, and blood compatibility. In this study, the composite membrane was fabricated through electrospinning, which is an in situ synthesis of carbon nano tube (CNT) bridged UiO 66 (COOH) 2 on PTFE fibers. UiO 66 (COOH) 2 increased the adsorption site by association with CNT, and achieved the adsorption of creatinine by hydrogen bond and π bond, which greatly reduced the usage of dialysis solution. UiO 66 (COOH) 2 and CNT were first combined for creatinine adsorption, and its maximum static adsorption capacity was 66 mg/g. During the dialysis, the yielding membrane showed a creatinine clearance of 64.89% and a resistance protein rate of more than 98%. Compared with pure PTFE dialysis membrane, the amount of dialysate used to achieve the same dialysis effect was merely 1/10. Furthermore, the membrane has a hemolysis rate of 2% and a low platelet adhesion rate, which shows excellent blood compatibility. Therefore, the dialysis membrane prepared in this study is expected to promote the development of portable home hemodialysis devices.
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高影响因子
JOURNAL OF SOLID STATE CHEMISTRY
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2025
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IF 3.5
Gao Shuang,Yu Yue,Li Yun-heng,Yao Sheng-yi,Song Ya-kai,Niu Lu-hao,Chen Xiao-lu
A series of molybdenum-based catalysts were prepared using UiO-66 modified with functional ligands as a carrier. The catalyst structure was characterised using XRD, FT-IR, N 2 adsorption desorption isotherms, TEM and XPS. The introduction of -F atom expanded the pore structure of catalyst and increased the specific surface area, resulting in a greater number of active site and more dispersion. The introduction of functional ligands (-F, -NO 2 ) enhanced the electron attraction capacity of catalyst, and improved the microenvironment around the active centre of the catalyst, which contributed to enhance the catalytic performance. The effect of catalyst structure on catalytic activity was investigated using the removal of dibenzothiophene (DBT) from simulated oils as a probe reaction. Under the optimum reaction conditions, the catalyst (UiO-66-NO 2 -F-MoO 3 ) was found to be the most effective for the DBT conversion, reached 99.1%. After 5 desulfurization experiments, the desulfurization activity of the catalyst cound still reach 90.6 %, indicating that the catalyst had good cyclic stability, which was closely connected to the hydrophobicity of the -F atom. The introduction of -F atom improved the hydrophobicity of the catalyst so that the generated sulfone was not easy to be adsorbed on the active site and improved the cyclic stability of the catalyst. Furthermore, the increase in the number of Mo active species was important in improving the cyclic stability of the catalyst.
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JOURNAL OF MEMBRANE SCIENCE
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2025
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IF 9
Doudou Dong,Weiliang Xu,Yuanhang Jin,Huan Yu,Rui Yao,Guining Chen,Yanan Guo,Haipeng Zhu,Gongping Liu,Yanshuo Li,Wanqin Jin
Currently, separation of ester/alcohol azeotropes such as methyl methacrylate (MMA)/methanol is a typical energy-intensive process using distillation technology. In principle, pervaporation membrane technology can separate azeotropes with higher energy efficiency, while the membrane performance could not meet the application requirement. We reported a new type of MOF ligand side group regulated UiO-66/PDMS mixed-matrix membranes (MMMs) to selectively separate MMA from the its methanol azeotrope. The incorporation of UiO-66 fillers improved the MMA/methanol performance of PDMS membrane. The results of molecular simulation and characterizations revealed that compared with the pristine UiO-66 and UiO-66-CH 3 , amino groups of UiO-66-NH 2 showed stronger interaction energy and thus higher affinity towards MMA molecule. Therefore, although the pore size of UiO-66-NH 2 is larger than the molecular kinetic diameters of MMA and methanol, the tunable chemical environment and molecular interaction promoted the selective transport of MMA. The optimal UiO-66-NH 2 /PDMS MMM displayed an outstanding separation performance with a total flux of 2.07 kg m −2 h −1 and a separation factor of 5.7 for 18 wt% MMA/methanol azeotrope at 40 °C. The membrane exhibited an excellent long-term performance during continuous separation process of ∼3400 h, and showed potential in scale-up fabrication and separation of other ester/alcohol azeotropes. The proposed MOF ligand side group regulation offers a promising strategy to develop high-performance membranes for azeotropic separation.
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高影响因子
MATERIALS RESEARCH BULLETIN
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2025
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IF 5.7
Jiazhuang Chen,Yonglian Zhang,Yingjie Guo,Zan Chen,Cuijia Duan,Claudia Li,Sibudjing Kawi,Yinhui Li
To address the low visible-light absorption of titanium oxide (TiO 2 ) and the agglomeration tendency of covalent-organic-framework (COF), UiO-66 modified by amination was combined with acyl chloride covalent organic framework (AC COF) synthesized by ultrasonic assisted method to successfully form AC COF@UiO-66 core-shell structure. Subsequent TiO 2 loading formed a heterojunction that narrows the band gap, suppresses charge recombination, and extends visible-light absorption. Compared to AC COF, the adsorption performance of the TiO 2 /AC COF@UiO-66 increased by 7.4 times, reaching 432.9 mg/g. The active species that play a main part in the photocatalytic degradation process are h + and ·OH. Experimental results demonstrate that tetracycline (TC) can be entirely degraded within 40 min. In this work, the functional design of adsorption and photocatalysis was carried out on UiO-66 framework material, which overcame the limitations of individual component in the treatment of tetracycline wastewater and provided a new strategy for the design of ternary composite photocatalytic materials.
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高影响因子
FOOD CHEMISTRY
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2025
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IF 9.8
Wenjing Li,Mengqing Xu,Zhuoyun Xia,Zheng Wang,Yingying Feng,Hui Li,Chuang Jiang,Yingnan Liu
The highly selective and sensitive detection of paraoxon residues at low environmental concentrations remains challenging. Herein, a novel fluorescent metal-organic framework composite (Ce 4+ @UiO-66-NH 2 ) with excellent phosphatase-like activity was developed to catalyze the hydrolysis of paraoxon into yellow p -nitrophenol ( p -NP), which quenched the composite's blue fluorescence via the inner filter effect. Based on this mechanism, a simple, portable, non-biological colorimetric/fluorescent hydrogel nanosensor (CM-SA spheres) was constructed by incorporating red fluorescent Mn-CDs with aggregation-induced emission as an internal reference. Upon increasing paraoxon concentration, the spheres showed visible color changes from colorless to yellow under daylight and blue to red under UV light. The sensor demonstrated a visual detection sensitivity of 0.05 μg mL −1 and limits of detection of 0.013 μg mL −1 (daylight) and 0.027 μg mL −1 (UV). In real sample analyses of tea and water, the CM-SA spheres exhibited strong anti-interference capability and reliability, offering a practical strategy for paraoxon degradation and detection.
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PubMed
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MICROPOROUS AND MESOPOROUS MATERIALS
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2022
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IF 5.876
Yiming Wang,Hong Li,Ze-nan Hu,Xin Chen,Zejun Sun,Yongjian Ai,Wenjuan Xu,Wenhui Zhang,Kelong Ding,Chengrui Li,Tong Jiang,Shuya Zhao,Haipeng Wang,Gang Zhang,Hong-bin Sun
Designing and developing efficient synergistic catalytic systems has always been an exciting topic. In this work, a sandwich-type nanocomposite , UiO-66-NH 2 @Pt@PCN-222, was utilized as a synergistic catalytic system for the selective reduction of nitrobenzaldehydes to nitrobenzyl alcohols. Benefiting from the synergy of PCN-222 and Pt NPs, the catalyst can efficiently promote the formation of 10 nitrobenzyl alcohols under mild conditions within as short as 30 min. Moreover, the PCN-222 provides not only active sites but also protection for metal nanoparticles , so the catalyst remained intact activity in cycles. This work has reference significance for the construction of synergistic catalytic systems.
研究领域:
化学
·
催化科学
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高影响因子
Applied Materials Today
·
2025
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IF 6.9
Longfang Ren,Fangfang Dong,Xiaodong Gao,Sijie Yu,Taotao Qiang
The flexible ammonia sensor can detect the ammonia content in the air or the exhaled gas of humans, but the commonly used sensors have poor breathability and washability, so they are not suitable for direct contact with human skin. In this work, based on the excellent flexibility and permeability of nonwovens, UiO-66-NH 2 /MoS 2 @nonwoven (UMN) and UiO-66-NH 2 /MoS 2 /Ag@nonwoven (UMAN) gas sensors were prepared by loading self-prepared UiO-66-NH 2 /MoS 2 (UM) and UiO-66-NH 2 /MoS 2 /Ag (UMA) onto microfiber nonwovens. The results show that UMN and UMAN gas sensors exhibit high selectivity toward ammonia gas. The response values of UMN and UMAN demonstrate a consistent linear trend within the ammonia concentration range of 1–50 ppm and reach 43 % and 47 % at 1 ppm respectively. The response variations of the sensors before and after bending are below 4 %, demonstrating excellent bending stability. After washing for 24 h, the gas sensing performance shows nearly no change, indicating that they both have good reusability and washability. However, the sensors exhibit limited thermal and humidity stability. Given the challenges such as poor breathability and insufficient biocompatibility faced by traditional flexible gas sensors, UMN and UMAN sensors have emerged as highly promising alternatives with distinct advantages.
研究领域:
生物医学工程
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传感技术
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纳米材料
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呼吸健康监测
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柔性电子学
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高影响因子
危险品化学品经营许可证（带存储）