DALTON TRANSACTIONS
·
2025
·
IF 3.3
Yanjia Zhou,Xiao-Dong Tang,Jingjing Li,Da-Yong Qing,Hong Wang
MIL-101(Cr) and MIL-100(Fe) are both representative MIL-type Metal-Organic-Frameworks (MOFs) materials, renowned for their large specific surface areas and size-tunable characteristics, making them suitable candidates for Li+ extraction from lithium-containing solvent. By introducing -NH2 functional groups and using LiNO3 as both a template and mineralizer, the functionalized MOF materials Li/NH2/MIL-101(Cr) and Li/NH2/MIL-100(Fe) were synthesized. Following modification, their Li+ adsorption capacities were increased, reaching 43.58 and 38.22 mg/g, respectively. The dosage of mineralizer, initial Li+ concentration, adsorbent dosage, solution pH value, and temperature all have an impact on the adsorption capacity of adsorbents. In addition, through the establishment of the pseudo-first-order kinetic model, pseudo-second-order kinetic model, as well as Langmuir and Freundlich thermodynamic models, it can be known that the adsorption of the materials belonged to monolayer chemisorption, and the adsorption process was exothermic. Furthermore, both adsorbents showed good reusability, retaining over 85% of their initial adsorption capacity after four adsorption-desorption cycles, highlighting their practical applicability in lithium recovery processes. In Mg-Li mixed solution systems, both materials exhibited exceptional Li+ selectivity. At a low Mg2+/Li+ ratio of 3, the separation factor (α) exceeded 80; even at a high Mg2+/Li+ ratio of 10, α remained near 50. Additionally, in systems with coexistence of multiple interfering ions, the distribution coefficient (Kd) followed the order: Li+ ≫ Mg2+ > Ca2+ > Na+ > K+. In the mixed systems, Li/NH2/MIL-101(Cr) and Li/NH2/MIL-100(Fe) exhibited certain separation effect for Li+ against competing cations.
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Chemical Engineering Journal Advances
·
2023
·
IF 0
Mengsi Cheng,Ying Fang,Zhaoguang Yang,Xinghao Liu,Bo Qiu,Tong Zhang,Haipu Li,Wenbo Zhao
MIL-100(Fe) was modified by amino groups (MIL - 100(Fe) - NH 2 ) to enhance the removal of antimonate (Sb(V)) with low concentration (50−200 μg/L) from natural water through batch adsorption experiments. With the initial Sb(V) concentration up to 200 μg/L, the residual Sb(V) concentration after treated by MIL - 100(Fe) - NH 2 was only 3.52 ± 0.131 μg/L, lower than the drinking water standards (5 μg/L) in China, while that was much higher (94.2 ± 3.52 μg/L) after pristine MIL-100(Fe) treatment. Based on results of XPS analysis, and adsorption kinetics and isotherms, we concluded that Sb(V) substituted the terminal −OH groups of MIL-100(Fe) to form inner-sphere complexes by coordination reactions with Fe nodes and be adsorbed by hydrogen bonding as well. The grafted amino groups (−NH 2 ) adsorbed Sb(V) by hydrogen bonding and facilitated the coordination reactions between Sb(V) and Fe nodes. The higher K L value (0.0116 ± 0.00,118 L/μg) obtained by fitting with the Langmuir isotherm model, while that of unmodified MIL-100(Fe) was 4.74 × 10 −4 ± 5.85 × 10 −5 L/μg, also confirmed that the −NH 2 groups greatly enhanced the affinity between MIL-100(Fe) and Sb(V). Furthermore, MIL - 100(Fe) - NH 2 still worked nicely in a wide pH range (2 − 12), with varied ionic strength (0.05 µmol/ L −1.5 mol/L), coexisting ions (CO 3 2− , NO 3 − , SO 4 2− , Cl − , H 2 PO 4 − ), and even in the real water bodies. Additionally, MIL - 100(Fe) - NH 2 exhibited good reusability and low Fe leaching (99.92 μg/L). We hope MIL - 100(Fe) - NH 2 become a candidate for effective removal of Sb(V), even other heavy metals from natural waterbodies.
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MATERIALS & DESIGN
·
2022
·
IF 9.417
Zhiming Hu,Caina Xu,Yonghao Liang,Taiyuan Liu,Huayu Tian,Yingchao Zhang
Compared with visceral cancers, breast cancer is epidermal and can be efficiently eliminated by photoacoustic imaging (PAI)-guided cancer therapy. In this study, we developed multifunctional nanoparticles (DMTH NPs) by loading doxorubicin (DOX) into MIL-100, which were modified with tannic acid (TA) and hyaluronic acid (HA) using a simple and convenient method. MIL-100 (Fe) in DMTH NPs allowed for chemodynamic therapy by converting endogenous hydrogen peroxide (H 2 O 2 ) into •OH through a Fenton-like reaction to assist DOX in killing cancer cells. DMTH NPs had high DOX loading efficiency for chemotherapeutic function and had the ability for photoacoustic imaging (PAI) and photothermal therapy (PTT) after being modified by TA. Specifically, DMTH NPs targeted tumors and had low toxicity in vivo . Ultimately, the released DOX and •OH cooperated in killing MCF-7 cells effectively in vitro . The enhanced and precise breast cancer treatment was achieved using a PAI-guided chemodynamic/chemo/photothermal synergistic therapy under laser irradiation in vivo . Overall, this work presented an innovative strategy for designing multifunctional nanoparticles for effective imaging-guided combination therapies to combat breast cancer.
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ANALYTICA CHIMICA ACTA
·
2021
·
IF 6.558
Jiabi Xu,Yanyan Xing,Yutong Liu,Mingzhe Liu,Xiaohong Hou
In recent decades, artificial nanozymes with excellent stability, low cost and availability have been gradually explored to avoid the limits of natural enzymes such as poor stability, high cost and difficult preparation. Herein, for the first time, we investigated the capability of nanoscale Fe 3 O 4 @MIL-100(Fe) as a nanozyme, which was quickly synthesized in situ by a microwave-assisted method within 20 min using Fe 3 O 4 as the metal precursor. The obtained Fe 3 O 4 @MIL-100(Fe) showed satisfactory intrinsic dual enzyme mimetic activities, including peroxidase (POD)- and catalase (CAT)-like activities. Moreover, a simple and effective colorimetric biosensor was fabricated to detect glutathione (GSH) based on its POD-like activity. The proposed measurement had a linear range of 1–45 μM and a limit of detection (LOD) of 0.26 μM (3.3 δ/S). It was proved that the established colorimetric sensing system could be successfully applied to detect GSH in actual biological samples. Importantly, the outstanding reusability and stability made it extremely valuable as a catalyst. The present work implied that Fe 3 O 4 @MIL-100(Fe) synthesized in situ by the microwave-assisted method was a very promising candidate for biocatalyst and biosensing.
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RSC Advances
·
2019
·Vol. 9
·期 41
·23711-23717
·
IF 3.049
Shu-Hui Huo,Chen-Xu Liu,Peng-Xin Zhou,Jing Yu,Lei Bai,Zhen-Gang Han,Xiao-Quan Lu
Development of novel porous materials for efficient adsorption and removal of environmental pollutants from aqueous solution is of great importance and interest in environmental science and chemistry. Herein, we reported a facile synthesis of recyclable magnetic carbonaceous porous composite derived from iron-based metal–organic framework MIL-100(Fe) for superior adsorption and removal of malachite green (MG) from aqueous solution. Because of large surface area and high porosity, the synthesized magnetic carbonaceous porous material presented a superior adsorption capacity of 2090 mg g−1 for MG. The adsorption of MG on magnetic carbonaceous porous composite is endothermic and spontaneous. The prepared magnetic carbonaceous porous composite could be separated easily and rapidly from the solution matrix by an external magnet. The rapid adsorption, large adsorption capacity and good reusability make it attractive for practical use in the adsorption and removal of dyes from aqueous solutions.
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JOURNAL OF CHROMATOGRAPHY A
·
2012
·
IF 4.531
Yan-Yan Fu,Cheng-Xiong Yang,Xiu-Ping Yan
Metal-organic framework MIL-100(Fe) was explored as a novel stationary phase for both normal-phase and reverse-phase high performance liquid chromatography. Two groups of analytes (benzene, toluene, ethylbenzene, naphthalene and 1-chloronaphthalene; aniline, acetanilide, 2-nitroaniline and 1-naphthylamine) were used to test the separation performance of MIL-100(Fe) in the reverse-phase mode, while the isomers of chloroaniline or toluidine were employed to evaluate its performance in the normal-phase mode. The MIL-100(Fe) packed column gave a baseline separation of all the tested analytes with good precision. The separation was controlled by negative enthalpy change and entropy change in the reverse-phase mode, but positive enthalpy change and entropy change in the normal-phase mode. The relative standard deviations of retention time, peak area, peak height, and half peak width for eleven replicate separations of the tested analytes were 0.2–0.7%, 0.5–3.6%, 0.6–2.3% and 0.8–1.7%, respectively. The mesoporous cages, accessible windows, excellent chemical and solvent stability, metal active sites and aromatic pore walls make MIL-100(Fe) a good candidate as a novel stationary phase for both normal-phase and reverse-phase high performance liquid chromatography.
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APPLIED CATALYSIS B-ENVIRONMENTAL
·
2024
·
IF 20.2
Jianxin Zhu,Haiyang Liu,Haijun Chen,Xiuyi Hua,Deming Dong,Dapeng Liang,Zhiyong Guo,Na Zheng
Low degradation efficiency and significant transition metal leaching are two challenges in persulfate activation systems based on metal-organic frameworks (MOFs) for organic pollutant degradation. Here, the challenges were solved by designing and synthesizing a micron-sized core-shell material, γ-Al 2 O 3 -C-MIL-100(Fe) (γACM), by coating the γ-Al 2 O 3 core with carbon (γ-Al 2 O 3 -C) and futher modifying with MIL-100(Fe). Testing γACM with sulfamethazine (SMZ) demonstrated its outstanding peroxydisulfate (PDS) activation, achieving 92.5 % SMZ removal within 20 min at a low oxidant/pollutant ratio. Fe leaching from γACM was effectively inhibited, with only 3.59 % Fe lost after three recycles. The system showed adaptability across a wide pH range, and usability in sewage effluent, indicating promise for practical application. The hydrophobicity of γ-Al 2 O 3 -C, the coordinatively unsaturated sites in MIL-100(Fe), and the strong bounding of MIL-100(Fe) on γ-Al 2 O 3 -C ensured the effective SMZ gather, PDS activation, and Fe stability respectively, which led to the excellent performances of γACM.
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FUEL
·
2024
·
IF 6.7
Wei Fu,Muhammad Kashif,Chen Cai,Jiayin Chen,Hao Zhou,Bingtao Zhao,Philippe M. Heynderickx,Yaxin Su
The hydrothermal technique was applied to prepare a new metal–organic framework, MIL-100(Fe), which was modified by ultrasonic impregnation with different wt % of copper. The results showed that the NO x conversion over 2.3Cu-MIL-100(Fe) was 100 % at 275 °C and maintained at ≥ 85 %, with N 2 selectivity ≥ 90 % in the temperature range of 275–400 °C and high SO 2 resistance. An increase in the Cu content up to 2.3 wt% showed the highest surface area (1206 m 2 /g) observed in N 2 adsorption–desorption. The results show that the introduction of Cu increased the oxygen vacancies on the catalyst surface. Electron transfer and a synergistic effect were observed between Cu and Fe. The shift of the reduction peaks to lower temperatures after the addition of Cu confirmed that Cu improved the reducibility of the catalysts. The 2.3Cu-MIL-100(Fe) exhibited the highest Lewis content (44.97 μmol/g), which functions as an active site for the selective catalytic reduction (SCR) reaction. By precisely controlling the acid-base properties of the catalyst, the specificity for the desired products can be increased in complicated reaction systems, especially in hydrocarbon-SCR technology.
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MICROCHEMICAL JOURNAL
·
2026
·
IF 5.2
Peng Du,Wei Gao,Zhaohui Huang,Chuqi Jiang,Jiahui Zhang,Dongjun Lv,Luyang Liang,Ling Yin,Xiaolei Zhang,Hongbo Zhang,Huiting Wu
Three-level ET cascade relieves bottleneck. • TMB: 5.8x act., 24.2x eff.. • GSH sensing + redox disruption (depletion/ROS). Nanozyme efficiency is fundamentally constrained by interfacial electron transfer (ET) bottlenecks, yet most strategies overlook the rational design of ET pathways. Herein, a ternary NiMo 6 @MIL-100(Fe)/g-C 3 N 4 nanozyme featuring a hierarchical three-level ET cascade was reported: TMB substrates are preconcentrated onto g-C 3 N 4 via π–π stacking (Level I); electrons transfer from g-C 3 N 4 to Fe 3+ nodes of MIL-100(Fe) through interfacial Fe O C bonds (Level II); and finally cascade into the encapsulated NiMo 6 cluster for H 2 O 2 activation and •OH generation (Level III). This design yields higher activity than binary (1.8-fold) and pristine counterparts (5.8-fold), with a 24.2-fold enhancement in catalytic efficiency for TMB. By leveraging glutathione (GSH) as a specific electron cascade interceptor, a colorimetric assay achieves a detection limit of 0.36 μM with excellent selectivity over structurally similar thiols. Beyond sensing, the same cascade efficiently depletes GSH and induces intracellular ROS bursts in HepG2 cells, disrupting tumor redox homeostasis and highlighting its therapeutic potential and establishing a mechanism-driven paradigm for biosensing and cancer therapy. A hierarchical three-level ET cascade transforms electron bottlenecks into a superhighway for GSH sensing and tumor redox therapy. Download: Download high-res image (274KB) Download: Download full-size image
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RSC Advances
·
2026
·Vol. 16
·期 6
·5501-5514
·
IF 4.6
Lian Yu,Baozi Lu,Zhen Liang,Dabin Wang,Jiarui Lu,Fengyi Wei,Cunzhen Liang
The slow rate of the Fe3+/Fe2+ cycle has decreased the efficiency of photo-Fenton technology for wastewater treatment. Here, a novel GO/MIL-100(Fe)@Fe3O4 heterostructure was constructed by growing Fe3O4 nanoparticles and MIL-100(Fe) onto GO, thus accelerating the Fe3+/Fe2+ cycle and improving catalytic activity, and it was used as a heterogeneous photo-Fenton catalyst for ERY degradation. The catalyst was fully characterized by TEM, XRD, Raman spectroscopy, XPS, N2 adsorption–desorption and UV-vis DRS. The influences of initial solution pH, H2O2 concentration and catalyst dosage on ERY degradation were investigated. Under optimal conditions (initial pH of 4.03, 10.0 mM H2O2, 0.1 g L−1 catalyst), the GO/MIL-100(Fe)@Fe3O4 + H2O2 + vis system removed 97.3% of ERY (0.1 mmol L−1) within 60 min, and the pseudo-first-order rate constant was 0.0575 min−1. Furthermore, the catalyst showed favorable stability, maintaining excellent catalytic activity even after 4 cycles. A possible degradation mechanism of ERY was proposed based on the results of characterization, ERY degradation, and reactive species analysis. Fe3O4, MIL-100(Fe) and GO in the catalyst showed synergistic effects; the photo-induced electrons from MIL-100(Fe) could be immediately transferred to Fe3O4, promoting Fe3+ reduction to Fe2+ in the photo-Fenton reaction. GO in the catalyst could promote electron transfer from MIL-100(Fe) and organics to Fe3O4, significantly promoting the Fe3+/Fe2+ cycle.
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ANALYST
·
2023
·Vol. 148
·期 12
·2725-2731
·
IF 4.2
Yuhan Ji,Yupu Wei,Jinghui Shen,Jinlong Zhuo,Mingqi Xu,Yunliang Wang,Jingquan Sha
To improve the peroxidase-like activities of metal–organic frameworks (MOFs) as nanozymes, a ternary MIL-100(Fe)@PMo12@3DGO nanocomposite was designed and fabricated by encapsulating Keggin-type H3PMo12O40 (PMo12) with fast and reversible multi-electron redox processes and an electron-rich structure into MIL-100(Fe), then being covered by three-dimensional graphene (3DGO) with higher conductivity, larger surface area, higher porosity, and better chemical stability. As a consequence, the as-prepared MIL-100(Fe)@PMo12@3DGO nanocomposite exhibits excellent peroxidase-like activities, namely, the lowest limit of detection (0.14 μM) in the range of 1–100 μM for glucose to date, to the best of our knowledge, attributed to the individual and synergistic effects of H3PMo12O40, 3DGO and MIL-100(Fe).
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Materials Today Communications
·
2022
·
IF 3.662
Tao Wei,Zhimeng Wang,Mi Zhang,Qi Zhang,Jiahao Lu,Yanyan Zhou,Cheng Sun,Zidong Yu,Yu Wang,Man Qiao,Sai Qin
As a common filler in polymer electrolytes , Metal-organic frameworks (MOFs) has been studied extensively in recent years. In this study, we propose a novel solid composite electrolytes (SCEs) based on PEO/LiTFSI/a-MIL-100 (Fe)/PVDF by using a straightforward solution-casting method. Unactivated and activated MIL-100 (Fe) (a-MIL-100 (Fe)) as the fillers were compared, and the interactions of functional groups of unactivated MIL-100 (Fe) and a-MIL-100 (Fe) with anions of electrolyte salts through Lewis acid-base interaction are studied with density functional theory (DFT) calculations. The influences of different a-MIL-100 (Fe) contents on electrochemical performances were also examined. The Li/SCEs/LiFePO 4 cell displayed high average discharge capacities of 161.8 mAh g −1 , 166.8 mAh g −1 , 158.9 mAh g −1 , 146.2 mAh g −1 and 92.6 mAh g −1 at the rate of 0.1, 0.2, 0.5, 1 and 2 C at 60 ℃, respectively, without liquid electrolytes. This work might provide new insight into the role of activated MOFs fillers in polymer electrolytes.
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