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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高影响因子
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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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
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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高影响因子
INORGANIC CHEMISTRY COMMUNICATIONS
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2025
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IF 5.4
Habib Ur Rehman,Shazia Ghaffar,Mujeeb Ur Rahman,Saeed Ahmed,Faakhar Raza
Arsenic as an emerging micropollutant, causing the world ecosystems polluted due to its high toxicity to the environment. In order to removal arsenate As (V), many metal organic frameworks (MOFs) have been synthesized as adsorbents. However, the mostly existing MOFs adsorbents have a slow adsorption rate, agglomeration and poor stability in water.Therefore, it is highly desired to explore a novel adsorbent for the more efficient and rapid removal of As(V) from aqueous solution. Herein, we synthesized monodisperse microspheres with amino functionalized MOF UiO-66 on the silica core for the first time.The synthesized adsorbent was charecterised using scanning electron microscopy (SEM), transmission electron microscopy (TEM), N 2 adsorption desorption isotherms, x-ray diffraction (XRD).The obtained results revealed that it exhibit monodisperse core shell microspheres and showed fast separation of As (V) from aqueous solution. The Kinetic data showed that the As (V) removed rapidly, within 5 min only and the adsorption kinetics described by the pseudo second order kinetic model.The adsorption capacity of the adsorbent was 22.62 μg/g at pH 2. The adsorption experiment showed that adsorbent prepared with UiO-66-NH 2 @SiO 2 could rapidly remove the arsenate from aqueous solution. FTIR results indicated that As (V) is removed successfully from aqueous solution. Electrostatic interaction between UiO-66-NH 2 and As (V) should be the proposed mechanism.
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INORGANIC CHEMISTRY COMMUNICATIONS
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2025
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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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高影响因子
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
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2025
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IF 8.5
Sina Seifi,Azadeh Ghaee
In this study, a novel nanocomposite scaffold comprising pectin, gelatin, and amoxicillin trihydrate-loaded UiO-66-NH 2 metal-organic frameworks (UiO-66-NH 2 @AMX) was fabricated for skin tissue engineering applications. UiO-66-NH 2 nanoparticles were synthesized hydrothermally and subsequently loaded with amoxicillin trihydrate. Finally, UiO-66-NH 2 @AMX nanoparticles were incorporated into pectin-gelatin scaffolds using the freeze-drying method. FE-SEM imaging confirmed the octahedral morphology of the nanoparticles before and after drug loading. FTIR analysis demonstrated successful drug incorporation via non-covalent interactions. DLS and zeta potential measurements showed that UiO-66-NH 2 nanoparticles had a mean size of 218.5 ± 14 nm and a surface charge of +44.1 ± 2.7 mV. After drug loading, the size slightly increased to 248.8 ± 19 nm, and the surface charge decreased to +32.6 ± 2.5 mV, while maintaining colloidal stability. All of the scaffolds showed porous structures with interconnected pores in SEM imaging. The incorporation of UiO-66-NH 2 @AMX nanoparticles into the pectin-gelatin scaffolds up to 3 % (w/w) increased the tensile strength and Young's modulus of the scaffolds 37.6 % and 56.7 %, respectively. Antibacterial activity was evaluated by CFU assay, where UiO-66-NH 2 @AMX containing scaffolds revealed significant bacterial reduction against E. coli and S. aureus colonies. MTT, cell adhesion, and cell scratch assays conducted on L929 fibroblasts. All of the scaffolds demonstrated >85 % cell viability after 3 days of culture. Furthermore, scaffolds with 3 % (w/w) UiO-66-NH 2 @AMX enhanced cell adhesion and increased migration rate in scratch closure assay. Overall, the results indicate that the novel nanocomposite scaffolds are promising candidates for skin tissue engineering and wound healing applications.
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PubMed
高影响因子
Journal of Environmental Chemical Engineering
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2025
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IF 7.2
Hanhui Wang,Yi Zhang,Tingting Li,Zhiming Zhang,Libao An,Yeqi Zhang,Xinyu Sui
A hydrophobic metal-organic framework (MOF) nanofibrous membrane (NFM) with excellent comprehensive properties was successfully fabricated by a simple method. Benefiting from the excellent hydrophobicity, chemical stability, thermal stability and good structural fit of UiO-66-F 4 and polysulfone (PSF), the UiO-66-F 4 /PSF NFM has been directly prepared via co-electrospinning of UiO-66-F 4 and PSF without any additional modifications. Characterization with PXRD, FT-IR and XPS indicated that UiO-66-F 4 crystals were effectively incorporated into PSF fibers and their crystal structure was not destroyed. The obtained UiO-66-F 4 /PSF NFM exhibited improved hydrophobicity compared with the parent materials, even after the treatment with heat, acid or alkali solutions. Therefore, it was competent for separating different forms of oil-contaminated water, including oil-water mixture and water-in-oil emulsion, even in harsh conditions. In the case of hot oil-water mixture, UiO-66-F 4 /PSF NFM still showed a separation efficiency of about 99 % and an oil flux of 1036 L m −2 h −1 . More importantly, the separation efficiency remained relatively stable during 30 cycles of separation, indicating that UiO-66-F 4 /PSF NFM can meet the requirements of long-term use. In view of this, UiO-66-F 4 /PSF NFM had the potential to treat practical oily wastewater in harsh environments.
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高影响因子
CHEMICAL ENGINEERING JOURNAL
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2025
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IF 13.2
Yuxin Li,Zhimin Wang,Yuanfeng Wei,Ting Wang,Maosong Zhao,Jie Luo,Jun Zhou,Zhaoshuang Li,Kai Yin,Chengbin Liu
Water decontamination from arsenic-contaminated groundwater is critical to the health of millions of households worldwide. However, efficiently removing the low-adsorbing As(III) remains challenging. Herein, a multifunctional biocomposite bead UiO-66-NH 2 -Cl@PCB integrating defects, oxidation and adsorption properties was prepared to effectively remove As(III). The N -chlorosulfonamide bound within the embedded UiO-66-NH 2 -Cl oxidizes the lower-adsorbing As(III) to As(V), which could be effectively adsorbed by the defect-rich MOF, while the porous chitosan bead (PCB) host ensures the utilisation of the reactive sites of UiO-66-NH 2 -Cl. Using 1 g/L of UiO-66-NH 2 -Cl@PCB, 1 mg/L of As(III) can be reduced to under 10 μg/L in 300 min. Furthermore, similar As(III) removal efficiencies were achieved across a wide pH spectrum (3–9) or in the presence of interfering substances (anions, cations, organic matter). High concentrations of phosphate will inhibit its performance. As(III) removal followed the Freundlich isotherm modal, and its maximum removal capacity reached 58.09 mg/g at pH 7. Furthermore, at equilibrium concentrations of 10 μg/L, its As(III) removal capacity exceeded 10 mg/g. UiO-66-NH 2 -Cl@PCB can purify the As(III)-spiked groundwater to meet the drinking standard level. Using NaOH solution for regeneration, the removal efficiency maintained above 70 % in the fifth cycle. Additional chlorination treatment can significantly improve reusability. 2.4 g of UiO-66-NH 2 -Cl@PCB packed fixed-bed column was capable of purifying 3820 BV of groundwater containing 100 μg/L of As(III). The proposed UiO-66-NH 2 -Cl@PCB has the potential to be an easy-to-use and reliable material for efficient As(III) removal.
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高影响因子
CRYSTENGCOMM
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2025
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IF 2.6
Huanxia Lin,Wensong Lin,Yeheng Zhang,Ran Gao,Yong He
BiOCl/UiO-66-NH2 photocatalysts were synthesized by a hydrothermal method. BUNH-8 (BiOCl/UiO-66-NH2 composite with 8% UiO-66-NH2) exhibits exceptional photocatalytic performance under visible-light illumination, degrading 92% of rhodamine B (RhB) within 60 minutes, which is 38.16% greater than that of pure BiOCl. The enhanced performance of the BiOCl/UiO-66-NH2 composite photocatalyst can be attributed to the distinct band structure difference between BiOCl and UiO-66-NH2, facilitating effective Z-scheme charge separation and transfer under light irradiation. Superoxide radicals were determined to be the crucial active species in the photocatalytic degradation process via electron paramagnetic resonance (EPR) analysis and a simulated photocatalytic degradation experiment of the dye RhB with scavengers added. Apart from its high efficiency, BUNH-8 demonstrates excellent stability as well. Even after being reused four times, it maintains its excellent photocatalytic performance, suggesting its high potential for application.
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高影响因子
CHINESE JOURNAL OF CATALYSIS
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2025
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IF 17.7
Rushuo Li,Tao Ban,Danfeng Zhao,Fajie Hu,Jing Lin,Xiubing Huang,Zhiping Tao,Ge Wang
Defect engineering improves the catalytic performance of metal-organic frameworks (MOFs) loaded metal nanoparticles (MNPs@MOFs), but there is still a challenge in defining the structure-activity relationships. Herein, the content of linker-missing defects in UiO-66(Ce) was systematically regulated via formic acid as the modulators, and defective UiO-66(Ce) loaded Ni nanoparticles (NPs) were constructed for dicyclopentadiene (DCPD) hydrogenation. The fine regulation of defect engineering and reduction conditions affected the structure properties of UiO-66(Ce) and the electronic metal-support interaction between MOFs and Ni NPs, thereby optimizing the microenvironment and electronic state of Ni NPs. The optimized U(Ce)-40eq with suitable defects, small size and structure stability effectively promoted the production of highly dispersed abundant electron-deficient Ni 0 active sites, enhancing the adsorption and activation of H 2 and C=C bonds, especially accelerating the rate-determining step. Therefore, U(Ce)-40eq loaded 5 wt% Ni NPs achieved DCPD saturated hydrogenation to tetrahydrodicyclopentadiene (70 °C, 2 MPa, 90 min), superior to most high-loading Ni-based catalysts. This work reveals the synergistic mechanism of MOFs defect engineering and electronic structure of Ni NPs, providing effective guidance for the precise preparation of highly efficient and stable MNPs@MOFs heterogeneous catalysts.
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高影响因子
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