FOOD CHEMISTRY
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2025
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IF 9.8
Yingkun Shi,Fujia Dong,Argenis Rodas-Gonzalez,Guangxian Wang,Lingfan Yang,Sichun Chen,Hao-Bo Zheng,Songlei Wang
Heavy metal ions (HMIs) pollution has become a significant food safety concern owing to rapid urbanization and industrialization. In this study, a hypersensitive electrochemical sensor based on amino-functionalized MXene and bimetallic atom MOFs nanocomposites (MXene-NH 2 @CeFe-MOF-NH 2 ) was developed and applied for the detection of HMIs. MXene-NH 2 @CeFe-MOF-NH 2 nanocomposites were obtained by incubating MXene@CeFe-MOF prepared by hydrothermal and self-assembly methods in APTES to endow them with a large amount of surface amine functional groups. The introduction of -NH 2 could lead to a coordination effect between the nanocomposites and HMIs, promoting the enrichment efficiency of HMIs on the surface of the working electrode. The sensing platform demonstrated excellent detection performance, with limit of detection (LOD) values of 0.69 nM, 0.95 nM, and 0.33 nM for Cd 2+ , Pb 2+ and Hg 2+ , respectively, which were far below the maximum residue levels specified by the Chinese standards. Furthermore, the sensor was employed to analyze representative real samples (fish, whole milk, rice, and corn) to simulate an accurate analysis in complex scenarios and successfully detect the three HMIs simultaneously.
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DOI
PubMed
高影响因子
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
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2024
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IF 7.7
Yanan Huang,Xiaotong Wang,Bodan Luo,Peng Jin,Yonghua Zheng,Changliang Xu,Zhengguo Wu
Effective control of wound bleeding and sustained promotion of wound healing remain a major challenge for hemostatic materials. In this study, the hemostatic sponge with controllable antibacterial and adjustable continuous promotion of wound healing (CMN Cu) was prepared by chitosan, aminated MXene and copper ion . Interestingly, the internal topological point-line-surface interaction endowed the CMN-Cu sponge longitudinal staggered tubular porous microstructure, combined with the lipophilic properties obtained by modified MXene, which greatly improved its flexibility, wet elasticity and blood enrichment capacity. In addition, the sponge achieved controlled release of active ingredients, which made it present highly effective antibacterial activity and long-lasting ability to promote wound healing. In vitro and in vivo experiments confirmed that CMN-Cu sponge presented high-efficient hemostatic performance. Last but not least, a series of cell experiments showed that the CMN-Cu sponge had excellent safety as a hemostatic material.
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PubMed
高影响因子
Nanomaterials
·
2024
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IF 4.4
Xiaohang Lin,Yuzhu Xiong,Fuping Dong
Environmental pollution of phosphorus is becoming increasingly concerning, and phosphate removal from water has become an important issue for controlling eutrophication. Modified metal–organic framework (MOF) materials, such as UiO-66-NH 2 , are promising adsorbents for phosphate removal in aquatic environments due to their high specific surface area, high porosity, and open active metal sites. In this study, a millimeter-sized alginate/UiO-66-NH 2 composite hydrogel modified by polyethyleneimine (UiO-66-NH 2 /SA@PEI) was prepared. The entrapping of UiO-66-NH 2 in the alginate microspheres and its modification with PEI facilitate easy separation in addition to enhanced adsorption properties. The materials were characterized by SEM, FTIR, XRD, and BET. Static, dynamic, and cyclic adsorption experiments were conducted under different pH, temperature, adsorbent dosage, and initial concentration conditions to assess the phosphate adsorption ability of UiO-66-NH 2 /SA@PEI. Under optimal conditions of 65 °C and pH = 2, 0.05 g UiO-66-NH 2 /SA@PEI adsorbed 68.75 mg/g, and the adsorption rate remained at 99% after five cycles of UiO-66-NH 2 /SA@PEI. These results suggest that UiO-66-NH 2 /SA@PEI composite materials can be used as an effective adsorbent for phosphate removal from wastewater.
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高影响因子
CRYSTENGCOMM
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2025
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IF 2.6
Bolin Ma,Guanghui Chen,Lingling Zhou,Chengyang Ni,Xinyu Sun,Lei Zhang,Xinguo Xi,Lanqin Tang,Yong Zhou
The development of highly efficient photocatalysts for CO2 reduction remains a critical challenge in achieving sustainable energy conversion. In this study, we report the synthesis of a UiO66-NH2@In2O3, integrating UiO66-NH2 metal organic frameworks (MOFs) with indium oxide (In2O3) nanoparticles, forming a robust heterostructure. Characterization results demonstrated that calcination at 250 °C for 4 hours yielded a heterostructure with indium uniformly incorporated, as confirmed by XRD, SEM, TEM and ICP-OES analyses. XPS studies revealed significant electronic interactions between UiO66-NH2 and In2O3, including shifts in binding energies of indium and zirconium, indicative of chemical bonding. This heterostructure facilitated enhanced charge separation and transfer, as evidenced by photocurrent measurements, leading to superior photocatalytic CO2 reduction performance. Under light irradiation, UiO66-NH2@In2O3 achieved a CO production rate of 83.68 μmol g−1 during the first hour and a cumulative yield of 485.08 μmol g−1 after 7 hours, significantly outperforming pristine UiO66-NH2 and In2O3. The superior activity is attributed to the large surface area of UiO66-NH2, facilitating CO2 adsorption, and the heterojunction formation with In2O3, enhancing charge carrier dynamics. These findings highlight the synergistic effects of UiO66-NH2 and In2O3, providing insights into the design of advanced photocatalysts for environmental and energy applications.
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JOURNAL OF APPLIED POLYMER SCIENCE
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2025
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IF 2.8
Yu Liu,Yang Shen,Shusu Shen,Xiaoji Zhou,Ji Ma,Zhenfeng Lin,Yongfu Guo
MOFs (metal-organic frameworks) have been widely applied in membrane modifications. In this study, a polyvinylidene fluoride (PVDF) membrane substrate was initially functionalized with one typical MOF, UiO-66-NH 2 , through simple vacuum filtration, followed by the deposition of a trace amount of perfluorohexane (PFHx) sulfonate potassium, successfully preparing a novel composite membrane named UxP1. Incorporating UiO-66-NH 2 onto the hydrophobic PVDF significantly enhances both hydrophilicity and porosity. The trace deposition of PFHx introduced F groups, enhancing the oil-repellent properties of the membrane. The WCA of the U5P1 membrane (5 mg of UiO-66-NH 2 and 1 mg of PFHx) decreased from 68.4° to 25.4°, while the underwater oil contact angle (UWOCA) increased from 139.5° to 150.5°, resulting in a superhydrophilic and oleophobic surface. In oil–water emulsion separation experiments, U5P1 achieved an oil removal rate > 99% at an operating pressure of 0.085 MPa. In filtering wastewater containing Congo Red (CR) dye, the membrane exhibited a rejection > 99% and an impressive permeation flux of 1520 L m −2 h −1 , highlighting its outstanding separation efficiency. Moreover, during cyclic filtration experiments, U5P1 consistently maintained > 95% rejection at 0.085 MPa, and the FRR remained > 81%, demonstrating exceptional fouling resistance and rejection capabilities. This work provides a good basis for the advanced development of MOFs-modified membranes into efficient practical water treatment.
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Journal of Environmental Chemical Engineering
·
2024
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IF 7.4
Jin Wang,Longhui Fang,Yutao Ban,Xiangyang Liu,Maogang He
Due to their high global warming potential (GWP), hydrofluorocarbons (HFCs) are included in various regulations as substances to be phased down. Gas separation membrane technology is expected to provide a better choice for refrigerant separation. In this study, a series of metal-organic frameworks (MOFs)/ polydimethylsiloxane (PDMS) mixed matrix membranes (MMMs) were prepared for the separation of the refrigerant blend R454A (GWP = 145), which consists of a near-zeotropic difluoromethane (R32, GWP = 675) and 2,3,3,3-tetrafluoropropene (R1234yf, GWP = 4). ZIF-71-NH 2 was prepared for the first time by solvent-assisted ligand exchange (SALE), and then ZIF-71-NH 2 @ Ionic Liquid (IL) was prepared by embedding [C 2 mim][BF 4 ] into the pores of ZIF-71-NH 2 by capillary action method. The results showed that a hydrogen bonding network was established between the amino group and PDMS, which improved the interfacial compatibility, and reduced the pore size of ZIF-71, which contributed to an excellent gas separation performance of ZIF-71-NH 2 /PDMS MMMs. Restricting [C 2 mim][BF 4 ] to the ZIF-71-NH 2 pore can further reduce its pore size, and enhance R32/R1234yf separation performance due to the high selective solubility for R32 and R1234yf. The selectivity of 10 wt% ZIF-71-NH 2 /PDMS MMM is 25.6 % over that of 10 wt% ZIF-71/PDMS MMM. The selectivity of ZIF-71-NH 2 @IL/PDMS MMM is 38.3 % higher than that of ZIF-71-NH 2 /PDMS MMM. The ZIF-71-NH 2 /PDMS and ZIF-71-NH 2 @IL/PDMS MMMs exhibited the most excellent R32/R1234yf separation performance compared with the data currently published in the literature. Moreover, both designed MMMs demonstrated excellent resistance to ageing.
研究领域:
材料科学
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环境工程
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高影响因子
Journal of Environmental Chemical Engineering
·
2023
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IF 7.7
Chengdeng Yang,Sheng Feng,Changchang Ma,Yun Zhou,Xiaojun Dai,Zhiwei Ye,Yang Wang
A series of Bi 2 Sn 2 O 7 /UiO-66-NH 2 nanoparticles were synthesized by in-situ solvothermal method as efficient adsorption and visible-light-driven photocatalysts for the removal of tetracycline（TC）. Among them, the BUN16 presents excellent adsorption and degradation ability for the TC, which is more than 3.6 times that of monomers . The adsorption-enhanced degradation mechanism of BUN16 nanomaterials was revealed via BET, XPS, Zeta potential , FT-IR, EPR, EIS and kinetic analysis, meanwhile the performance of removing TC decreased slightly after five cycles. The excellent catalytic performance can be attributed to its excellent adsorption capacity and the synergistic effect of the Z-type heterojunction charge transfer mechanism. This work provides a basic principle for the scientific construction of Z-type heterojunction materials with adsorption catalytic function to remove TC in actual wastewater.
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高影响因子
International Journal of Nanomedicine
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2025
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IF 6.5
Jinlu Shang,Yongjun Chen,Fangliang Wang,Jing Yang,Yi Li,Liuxuan Yang,Xiuqiong Liu,Zhirong Zhong,Chaochi Yue,Meiling Zhou
Background Melanoma is an aggressive form of skin cancer, and single-modality treatments often fail to prevent tumor recurrence and metastasis. Combination therapy has emerged as an effective approach to improve treatment outcomes.Methods In this study, we developed a multifunctional nanoplatform, MIL@DOX@ICG, utilizing MIL-101-NH2(Fe) as a carrier to co-deliver the chemotherapeutic agent doxorubicin (DOX) and the photosensitizer indocyanine green (ICG). MIL-101-NH2(Fe) was synthesized via a hydrothermal method. Drug release was evaluated under different pH conditions, and the photothermal effect was tested under near-infrared (NIR) laser irradiation. Hydroxyl radical and reactive oxygen species generation capacities were quantified. Cellular studies using B16F10 cells assessed cytotoxicity, cellular uptake, migration inhibition, and colony formation suppression. In vivo experiments in melanoma-bearing mice evaluated antitumor efficacy and systemic safety through tumor growth inhibition, histological analyses, and toxicity assessments.Results MIL@DOX@ICG exhibited a uniform octahedral structure with a particle size of approximately 139 nm and high drug loading efficiencies for DOX (33.70%) and ICG (30.59%). The nanoplatform demonstrated pH-responsive drug release and potent photothermal effects. The generation of hydroxyl radicals via the Fenton reaction and reactive oxygen species production under NIR laser irradiation by MIL@DOX@ICG were confirmed. In vitro assessments revealed significant cytotoxicity of MIL@DOX@ICG against B16F10 cells under NIR laser irradiation, with improved efficacy in inhibiting cell proliferation and migration. In vivo studies confirmed the superior antitumor efficacy of MIL@DOX@ICG + NIR treatment, synergistically harnessing chemotherapy, photothermal therapy, photodynamic therapy, and chemodynamic therapy effects while maintaining excellent biocompatibility.Conclusion Our findings underscore the potential of MIL-101-NH2(Fe) nanoparticles as a versatile and effective platform for synergistic melanoma therapy, offering a promising strategy for overcoming the limitations of conventional treatment modalities.
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ANALYTICA CHIMICA ACTA
·
2025
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IF 6
Jing Chen,Yaqin Shi,Wenli Xue,Wenjing Liu,Rongfang Ma
Catechol is an important fine chemical raw material, and is widely used in the production of chemicals. However, this compound has low degradability and high toxicity, and was highly susceptible to release into the environment during production and application, posing a potential threat to ecosystems and human health. Therefore, in this paper, a PVP-functionalized NH 2 -Ti-MOF was synthesized using PVP as a shape-controlling agent, NH 2 -BDC as an organic ligand, and TBOT as a metal source. A sensor for dual-mode detection of catechol was constructed based on the interaction between catechol and PVP-NH 2 -Ti-MOF. When catechol was added to the probe solution, the fluorescence intensity at 428 nm was found to decrease based on the static quenching effect. At the same time, it was found that a new ultraviolet absorption peak appeared at 282 nm in the ultraviolet absorption spectrum, and the absorption peak intensity increased with the increase of catechol concentration, thus realizing the dual mode detection of catechol. Compared with the single-mode sensor, the dual-mode sensor is more accurate, fast and sensitive, which provides a new idea for the detection of catechol in water samples.
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Journal of Cleaner Production
·
2022
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IF 11.072
Xiangyu Wang,Wei Zhang,Xu Zhang,Lang Ran,Quanlin Zhao,Binze Zou,Lincheng Zhou,Zhengfang Ye
Chloromethyl styrene-divinylbenzene (PS–Cl) resin was usually chemically modified for the adsorption of heavy metal ions in wastewater. However, this work will introduce a new application of resin for catalytic degradation of antibiotics. The core-shell PS-NH 2 @MIL-53(Fe) catalyst was fabricated by simple two-step route including chemical synthesis and step-by-step self-assembly strategy. The catalysts exhibited excellent catalytic activity toward the degradation of tetracycline (TC) in the presence of H 2 O 2 , with a degradation efficiency and degradation rate constant ( k ) of 94.15% and 0.05643 min −1 within initial 20 min, respectively. Moreover, the mineralization and stability of PS-NH 2 @MIL-53(Fe) both showed excellent performance. The advantage of PS-NH 2 @MIL-53(Fe) is that the degradation efficiency of TC could be modulated by the number of self-assembly. Additionally, we utilized the Yellow River water to explore the effect of the catalyst for TC removal in the actual wastewater treatment . Meanwhile, several possible catalytic degradation pathways were analyzed on the basis of using HPLC-MS to detect the intermediates generated in the process of catalytic degradation, and a potential catalytic degradation mechanism was proposed. In brief, the new application of amination resin modified by MIL-53(Fe) in catalytic degradation of TC shows promising prospect, especially in the field of environmental remediation.
研究领域:
环境科学
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催化化学
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废水处理
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高影响因子
ACS Applied Materials & Interfaces
·
2021
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IF 9.229
Chengli Jiao,Xiangju Song,Xiaoqian Zhang,Lixian Sun,Heqing Jiang
Control of the surface morphology of polyamide membranes fabricated by interfacial polymerization is of great importance in dictating the separation performance. Herein, polyamide membranes with a specific nanoscale striped Turing structure are generated through facile addition of Zr-based metal–organic framework UiO-66-NH2 in the aqueous triethylenetetramine phase. Interestingly, accompanied by the degradation of UiO-66-NH2 in aqueous solution, an intermediate complex is in situ formed through the strong interaction between the Zr metal center and the amine group from triethylenetetramine, which can lower amine diffusion and induce a local interfacial reaction, contributing to the generation of a homogeneous nanoscale striped Turing structure. The resulting membranes are used for CO2/CH4 gas separation. Compared with the parent polyamide membrane displaying a CO2/CH4 selectivity of 43.1 and a CO2 permeance of 31.5 GPU, the membrane with 0.02 wt % of UiO-66-NH2 introduced into the aqueous phase shows a higher CO2/CH4 selectivity of 58.3, along with a CO2 permeance of 27.1 GPU. Additionally, when 0.1 wt % of UiO-66-NH2 is incorporated into the aqueous phase, the membrane exhibits a combination of a higher CO2/CH4 selectivity and an enhanced CO2 permeance in contrast with the parent polyamide membrane.
研究领域:
材料科学
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化学工程
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环境科学
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高影响因子
JOURNAL OF MEMBRANE SCIENCE
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2022
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IF 10.53
Yinghui Xu,Xuan Zhao,Ran Chang,Hongqiang Qu,Jianzhong Xu,Jing Ma
Rationally regulating the separation pores is an effective way to achieve efficient separation membrane . However, the developed metal-organic framework (MOF) membranes for water treatment are all formed by one kind of MOF, which can only provide rigid pores, makes it difficult to achieve high flux and excellent rejection ratio simultaneity. Here, we proposed a facile strategy for the synthesis of heterogeneous MOF-on-MOF membrane with hierarchical pores, by site-specific grown ZIF-8 layer on UiO-66-NH 2 layer. Thus unique architecture of the obtained double-layered MOF membrane (UiO-66-NH 2 @ZIF-8) endows multidimensional separation pores: (i) the large pores of UiO-66-NH 2 can facilitate water transportation, (ii) the molecular-sieving pores of ZIF-8 can intercept dyes, (iii) UiO-66-NH 2 acting as active sites can promote the growth of ZIF-8. As a result, the optimized UiO-66-NH 2 @ZIF-8 membrane exhibits high flux (36.7 L m −2 h −1 bar −1 ) and excellent dye rejections (>97.0%). Through analysis and comparison, the regulated multi-type pores play an important role in membrane performance. Coupled with the facile membrane preparing method, this work can used as a potential approach of designing other advanced MOF membrane for water treatment.
研究领域:
材料科学
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环境工程
·
化学工程
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高影响因子
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