MICROCHIMICA ACTA
·
2024
·Vol. 191
·期 4
·1-10
·
IF 5.3
Cao Hui,Han Yiyi,Chen Zixin,Ding Xiner,Ye Tai,Yuan Min,Yu Jinsong,Wu Xiuxiu,Hao Liling,Yin Fengqin,Xu Fei
A novel molecularly imprinted nanomaterial (Eu (BTC)-MPS@MIP) was synthesized on the surface of silanized europium-based metal–organic frameworks (Eu (BTC)-MPS) using 1, 3, 5-benzotrioic acid (H 3 BTC) as a ligand. The resulting Eu (BTC)-MPS@MIP was applied to constructing a smartphone sensing platform for the sensitive and selective detection of clothianidin (CLT) in vegetables. The synthesized Eu (BTC)-MPS@MIP demonstrated the successful formation of a typical core–shell structure featuring a shell thickness of approximately 70 − 80 nm. The developed sensing platform based on Eu (BTC)-MPS@MIP exhibited sensitivity in CLT detection with a detection limit of 4 µg/L and a linear response in the range 0.01 − 10 mg/L at excitation and emission wavelengths of 365 nm and 617 nm, respectively. The fluorescence sensing platform displayed excellent specificity for CLT detection, as evidenced by a high imprinting factor of 3.1. This specificity is primarily attributed to the recognition sites in the molecularly imprinted polymer (MIP) layer. When applied to spiked vegetable samples, the recovery of CLT ranged from 78.9 to 102.0%, with relative standard deviation (RSD) values falling between 2.2 and 6.2%. The quenching mechanism of Eu (BTC)-MPS@MIP toward CLT can be attributed to the inner filter effect (IFE), resulting from the optimal spectral overlap between the absorption spectrum of CLT and the excitation spectra of Eu (BTC)-MPS@MIP. The proposed method has the potential for extension to the detection of other pesticides by replacing the MIP recognition probes. Graphical abstract
研究领域:
分析化学
·
食品安全检测
·
材料科学
✓ 已验证
DOI
PubMed
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2023
·
IF 15.1
Mengdan Ma,Anning Zhou,Tao Hong,Xinyu Jia,Moxuan Liu
Metal-organic frameworks (MOFs) are promising materials for CO 2 adsorption and capture. The unique crystal structure and the open porous structure of MOFs are key factors affecting their CO 2 adsorption performance, but the precise tuning of MOF structures remains a challenge. Herein, we applied the Kamlet-Taft method to investigate the effect of solvent proton-supplying/accepting capaity (β/α parameters) on the structure and CO 2 adsorption performance of Mg-MOF-74 by tuning the reaction solvent polarity. It was found that the ratio of the nucleation rate/growth rate of Mg-MOF-74 could be effectively controlled by adjusting the β/α value of the solvent, realizing the regulation of the crystal structure and morphology of Mg-MOF-74. In addition, the size of solvent molecules played a crucial role in the pore size of Mg-MOF-74. Interestingly, the solvent molecules were competitively coordinated with ligands and participate in the growth of Mg-MOF-74 upon decreasing the β/α value. The crystal structure, morphology and pore size of Mg-MOF-74 could be precisely regulated by the β/α value and molecular size of the reaction solvent, and the highest performing Mg-MOF-74 exhibited a CO 2 adsorption capacity of 7.38 mmol/g.
研究领域:
材料科学
·
环境化学
·
多孔材料
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气体吸附
·
晶体工程
✓ 已验证
DOI
高影响因子
INORGANIC CHEMISTRY
·
2024
·
IF 4.3
Guoying Yang,Yijin Song,Songde Han,Zhen-Zhen Xue,De-Xuan Liu,Ani Wang,Guoming Wang
Assembling a heterostructure is an effective strategy for enhancing the electrocatalytic activity of hybrid materials. Herein, CoFe-layered double hydroxide and Co-metal–organic framework (CoFe-LDH/Co-MOF) hollow heterostructure nanorod arrays are synthesized. First, [Co(DIPL)(H3BTC)(H2O)2]n [named as Co-MOF, DIPL = 2,6-di(pyrid-4-yl)-4-phenylpyridine, H3BTC = 1,3,5-benzenetricarboxylic acid] crystalline materials with a uniform hollow structure were prepared on the nickel foam. The CoFe-LDH/Co-MOF composite perfectly inherits the original hollow nanorod array morphology after the subsequent electrodeposition process. Optimized CoFe-LDH/Co-MOF hollow heterostructure nanorod arrays display excellent performance in oxygen evolution reaction (OER) with ultralow overpotentials of 215 mV to deliver current densities of 10 mA cm–2 and maintain the electrocatalytic activity for a duration as long as 220 h, ranking it one of the non-noble metal-based electrocatalysts for OER. Density functional theory calculations validate the reduction in free energy for the rate-determining step by the synergistic effect of Co-MOF and CoFe-LDH, with the increased charge density and noticeable electron transfer at the Co–O site, which highlights the capability of Co-MOF to finely adjust the electronic structure and facilitate the creation of active sites. This work establishes an experimental and theoretical basis for promoting efficient water splitting through the design of heterostructures in catalysts.
研究领域:
材料科学
·
电化学
·
催化
✓ 已验证
DOI
PubMed
高影响因子
npj Clean Water
·
2025
·Vol. 8
·期 1
·1-17
·
IF 11.4
Tan Shengmei,Zhang Liuwei,Cheng Zhiliang,Peng Yuxin,Tang Jinshan,Zhu Hongrui,Qiu Facheng
This study introduces a hydrogenated FeCo-MOF derivative catalyst (HC-FeCo@C 350 ) to activate peracetic acid (PAA) for efficient degradation dye wastewater. Rhodamine B (RhB) as a model pollutant, the HC-FeCo@C 350 /PAA achieved a 99.33% removal efficiency within 20 min, with a rate constant 18 times higher than the non-hydrogenated system. Liquid chromatography-mass spectrometry (LC-MS) and the toxicity evaluation software (T.E.S.T.) confirmed reduced intermediate toxicity. Quenching experiments, electron paramagnetic resonance (EPR) tests, and density functional theory (DFT) calculation show that HC-FeCo@C 350 can effectively activate PAA to produce 1 O 2 , CH 3 C(O)O•, and CH 3 C(O)OO•. The magnetically recoverable catalyst maintained over 80% efficiency after 4 cycles. In actual dye wastewater treatment, the RE of chemical oxygen demand (COD), ammonia nitrogen (NH 3 -N), total nitrogen (TN), total phosphorus (TP) could reach approximately 53.57%, 53.23%, 29.25%, 19.2%, respectively, with reduced toxicity validated by mungbean germination experiment. This technology offers a promising approach for refractory dye wastewater treatment and reuse.
研究领域:
环境科学
·
材料科学
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF MEMBRANE SCIENCE
·
2023
·
IF 9.5
Bin Xiang,Jingling Gong,Yuqing Sun,Wenhao Yan,Ruirui Jin,Jian Li
Unstable interlayer spacing of lamellar membranes would be rapidly compressed and narrowed under normal high flowrates and concentration polarization effect contributes to reduced permeation and fouling resistance. Herein, a large permeability PEG/MXene@MOF membrane with stable interlayer spacing and superior antifouling property was created via facile interface self-assembly strategy. Metal-organic framework ( MOF , UiO-66-NH 2 ) nanoparticles as supports constructed an intercalation-induced structure with hierarchical Ti 3 C 2 T x (MXene) nanosheets , which effectively regulated the interlayer spacing and improved permeability. Hydrophilic polyethylene glycol (PEG) further enhanced the stability of intercalation structure via hydrogen bonding , so that the PEG/MXene@MOF membrane demonstrated excellent swelling resistance with an average layer spacing expansion of only 0.05 nm even after immersion in water for 8 days. Moreover, MOF particles increased the lamellar roughness and interlayer water retention capacity, resulting in the PEG/MXene@MOF membrane with remarkable separation selectivity and powerful fouling resistance (UWOCA >156°, UWOSA <5.5°). Regarding the purification of oil-in-water emulsions stabilized by surfactants , the PEG/MXene@MOF membrane exhibited extremely stable high permeability (1246 ± 12 L m −2 h −1 bar −1 ) and excellent efficiency (>99.7 %), even during continuous separation of high-viscosity crude oil emulsions for 60 min. In addition, the PEG/MXene@MOF membrane also exhibited superior chemical durability and mechanical robustness in strong-corrosiveness and high-salty environments (72 h), ultrasonic treatments (120 min), bending experiments (100 times) and abrasion tests (20 times). Therefore, this work provided a promising strategy to construct highly permeable membrane with stable interlayer spacing and efficient fouling resistance for practical oily wastewater purification.
研究领域:
膜技术
·
水处理
·
纳米材料
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环境工程
·
材料科学
·
表面化学
✓ 已验证
DOI
高影响因子
JOURNAL OF COLLOID AND INTERFACE SCIENCE
·
2025
·
IF 9.7
Jiaxing Zhu,Xuewei Liu,Xiaoyue Zeng,Huirong Zhu,Shuanglin Jia,Yufeng Qiao,Luyao Ren,Jianlin Long,Jinle Lan,Yunhua Yu,Xiaoping Yang
In-situ synthesizing composite polymer electrolytes (CPEs) in high-voltage Li-metal batteries is a promising strategy for achieving high energy density and safety. However, CPEs encounter several challenges, including limited ion migration ability, inferior electrochemical stability, and poor mechanical strength against lithium dendrites, which is caused by poor compatibility of organic–inorganic interface. Herein, we prepared an organic–inorganic hybrid polycarbonate-based solid-state electrolyte (denoted as PVM@PVZs) with a cross-linked structure using bis-acrylamide-based crosslinker and covalent bonding-driven V-ZIF-67 obtained by vinyl-functionalizing Metal Organic Framework (MOF). The prepared V-ZIF-67 is evenly dispersed on the surface of PVDF-HFP fibers via the Electrospinning & Electrospraying technique to improve the interfacial compatibility and help build continuous ion transport channels in the polymer matrix. Meanwhile, the presence of rich Lewis acidic sites and high specific surface area (1162.72 m 2 g −1 ) of V-ZIF-67 efficiently restricts the movement of anions to facilitate lithium-ion transport. These factors enable the optimal hybrid electrolyte (PVM@PVZ-3 containing 20 wt% of V-ZIF-67) to demonstrate high ionic conductivity (7.23 × 10 −4 S cm −1 at 25 °C) and high lithium-ion transference number (0.68). The introduction of covalent bonding and bis-acrylamide-based crosslinker provides sufficient electrochemical stability and mechanical strength for PVM@PVZ-3 to have a wide electrochemical window (5.27 V) and good Li dendrite suppression. Therefore, Li||Li symmetric cell can be stably cycled for 2400 h at a current density of 0.1 mA cm −2 , and the LiFePO 4 ||Li and LiNi 0.8 Co 0.1 Mn 0.1 O 2 ||Li full cells have excellent cycling performance, demonstrating a great prospect of the hybrid electrolyte for practical application in solid-state, high-voltage Li-metal batteries.
研究领域:
材料科学
·
电化学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
NEW JOURNAL OF CHEMISTRY
·
2022
·Vol. 46
·期 35
·17004-17015
·
IF 3.925
Weixing Liu,Wei Duan,Qiang Zhang,Xianjin Gong,Jinlei Tian
Pollution of freshwater caused by organic compounds, especially nitro aromatic compounds and rhodamine B, has aroused deep concern about the sustainable development of the earth in the past decades. Employing 2D Zn-MOF-Ru(cptpy)2 as the original material and dicyandiamide as the nitrogen dopant, a variety of novel N-doped carbon supported Ru nanoparticle materials (Ru-NC) have been successfully synthesized through one-step pyrolysis in a nitrogen atmosphere. Impressively, the introduced dicyandiamide can effectively enhance the catalytic activity of Ru-NC towards 4-NP reduction. The as-obtained Ru-NC-15 catalyst demonstrated an excellent catalytic performance towards nitro aromatic compound and rhodamine B reduction with conversions of more than 99%. Further investigations highlighted that the Ru-NC-15 catalyst possesses favorable catalytic stability and broad substrate applicability. The catalytic activity of the Ru-NC-15 catalyst did not decrease significantly after at least 5 times of continuous use, and it had a high conversion for various nitro aromatic compounds. The mass-normalized rate constants of the Ru-NC-15 catalyst were 2675 min−1 g−1 and 1830 min−1 g−1 towards 4-nitrophenol reduction and rhodamine B reduction, respectively, surpassing many catalysts previously reported in the literature. This work inspired the development of a MOF-derived heterogeneous catalyst for the catalytic reduction of nitro aromatic compounds and rhodamine B contaminants.
研究领域:
环境科学
·
材料科学
·
催化化学
✓ 已验证
DOI
高影响因子
MICROCHEMICAL JOURNAL
·
2021
·
IF 4.821
Wang Pan,Zhou Zheng,Xingxing Wu,Jiaojiao Gao,Yani Liu,Qunhui Yuan,Wei Gan
The development of transition metal based enzyme-free glucose (Glu) sensor with high sensitivity, wide linear range, and long-term stability is highly desired. Herein, a series of 2D/3D hierarchical structured bimetallic organic framework (NiCu-MOF- x , x = 2, 4, 6, 8) were developed through a one-step hydrothermal route by adjusting the ratio of nickel and copper salts. The morphological similarity of NiCu-MOF- x and Ni-MOF was evidenced by X-ray diffraction survey. The structural evolution of NiCu-MOF- x was revealed by scanning electron microscopy. The optimal NiCu-MOF-6 exhibits high electrocatalytic activity toward Glu oxidation. Being applied as the electrode modifier for glassy carbon electrode (GCE), NiCu-MOF-6/GCE exhibits a remarkably widened linear range than its monometallic analog, owing to its significantly increased electrochemical surface area, interconnected channels for mass/electron transfer and synergistically functionalized Ni/Cu electroactive sites. Being applied in human serum analysis, this sensor shows a good feasibility with satisfying recoveries.
研究领域:
材料科学
·
电化学
·
传感器
·
分析化学
✓ 已验证
DOI
高影响因子
SEPARATION AND PURIFICATION TECHNOLOGY
·
2022
·
IF 9.136
Zheng Kong,Lun Lu,Chao Zhu,Junjie Xu,Qile Fang,Renlan Liu,Yi Shen
PFOA has caused enormous environmental risks with recalcitrance, toxicity, and bioaccumulation, while the degradation of PFOA is still a challenging topic related to the high energy of C F bonds. However, the conventional methods such as biological oxidation, electrochemical oxidation and membrane separation have their own drawbacks. Actually, adsorption-photocatalysis is considered a potential treatment due to effectiveness and thoroughness. Instead of preparing the composite material by adding TiO 2 , the method to in-situ grow TiO 2 in the MOF (MIL-125(Ti)) was carried out, which achieved narrowed band gap and improved the photoresponse ability, simultaneously. Furthermore, the surface F-functionalized MOF provided more available special adsorption sites for PFOA enrichment. Linked fluorine groups not only improved the adsorption capacity (185.151 μmol/g) but also enhanced the photocatalytic rate (1.221 E −4 /s) by altering the electronic density of VB and CB. The constructed F-TiO 2 @MIL-125 stepwise degraded PFOA through a dominant ·OH attack pathway and maintained the oxidize ability of h + to PFOA. As a bifunctional material for adsorption and photocatalysis , F-TiO 2 @MIL-125 was able to be applied in various water environments repeatedly, which has unlimited environmental application potential.
研究领域:
环境科学
·
材料科学
✓ 已验证
DOI
高影响因子
INORGANIC CHEMISTRY
·
2015
·
IF 4.762
Dengrong Sun,Fangxiang Sun,Xiaoyu Deng,Zhaohui Li
Different amounts of Co-substituted Ni-MOF-74 have been prepared via a post-synthetic metal exchange. Inductively coupled plasma mass spectrometry, powder X-ray diffraction (XRD), N2 adsorption/desorption, and extended X-ray absorption fine structure (EXAFS) analyses indicated the successful metathesis between Co and Ni in Ni-MOF-74 to form the solid-solution-like mixed-metal Co/Ni-MOF-74. It was found that introduction of active Co into the Ni-MOF-74 framework enabled the inert Ni-MOF-74 to show activity for cyclohexene oxidation. Since Co was favorably substituted at positions more accessible to the substrate, the mixed-metal Co/Ni-MOF-74 showed superior catalytic performance, compared with pure Co-MOF-74 containing a similar amount of Co. This study provides a facile method to develop solid-solution-like MOFs for heterogeneous catalysis and highlights the great potential of this mixed-metal strategy in the development of MOFs with specific endowed functionalities.
研究领域:
材料科学
·
催化化学
✓ 已验证
DOI
PubMed
高影响因子
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
·
2020
·
IF 3.99
Chao Feng,Shanshan Qiao,Yuan Guo,Yuehong Xie,Li Zhang,Naeem Akram,Shiang Li,Jide Wang
The development of a highly efficient renewable heterogeneous catalysts for the synthesis of cyclic carbonates by the cyclic esterification of epoxides and carbon dioxide under relatively mild reaction conditions is of great significance in the territory of chemical fixation of carbon dioxide (CO 2 ). This work comprises on a functional catalytic material F-Mn-MOF-74 using an effective competitive coordination strategy, adenine (Ad) as alkali source and competitive ligand, introduced onto the synthetic Mn-MOF-74. An F-Mn-MOF-74 crystal having a spherical structure and being functionalized is obtained, and lone pair of electrons on the nitrogen atom in the adenine can compete with 2,5-hydroxyterephthalic acid for coordination. The alkalinity exhibited by adenine is beneficial to enhance the catalytic properties of the crystal in the cycloaddition reaction of epoxide with carbon dioxide. Further catalytic experiments showed that the functionalized F-Mn-MOF-74 crystal combined with tetrabutylammonium bromide in the lacking of solvent showed excellent catalytic activity in the cycloaddition reaction of styrene oxide and carbon dioxide. Under the optimal reaction conditions after screening (100 °C and 10 bar CO 2 pressure), the yield of cyclic carbonate was as high as 99 %. The excellent catalytic performance for other epoxides also confirmed that F-Mn-MOF-74 catalytic material is universal in its application. The catalytic performance of the catalyst was not significantly decreased after being recycled seven times, attributed to its excellent stability. The possible mechanism for the synergistic effect of Lewis acid-base properties of functionalized F-Mn-MOF-74 catalytic material with cocatalyst is also proposed.
研究领域:
化学工程
·
催化材料
·
环境科学
✓ 已验证
DOI
高影响因子
JOURNAL OF MEMBRANE SCIENCE
·
2022
·
IF 10.53
Wenyan Li,Yumei Li,Xinggui Wen,Yakun Teng,Jing Wang,Tianyi Yang,Xiang Li,Lijuan Li,Ce Wang
High-performance and low-cost hemodialysis membranes are urgently needed by patients suffering from end-stage renal disease. Here, we designed a flexible multifunctional Zr-MOF anchored polyacrylonitrile (PAN) nanofiber membrane (UAPNFM), which has good adsorption, dialysis, and regeneration ability. A novel adhesive layer modification method was used to make UIO-66-(COOH) 2 nanocrystals grow in-situ on the composite nanofibers . The UIO-66-(COOH) 2 nanocrystals were uniformly and stably anchored on the nanofibers with the content of 54.99 wt%. The obtained UAPNFM has the capability to effectively remove uremic toxins with excellent retain protein rate. The Langmuir isotherm and pseudo-second-order kinetic model can be applied to better describe the adsorption process . The maximum adsorption capacity of UAPNFM for creatinine reached 168.63 mg/g. After 4 h of simulate dialysis, the clearance rate of creatinine was 82.48% and the protein retention rate of bovine serum albumin (BSA) by the UAPNFM was 93.09%. In addition, after four cycles, the removal efficiency for creatinine still remained at 82.31%. The results show that the UAPNFM has good regenerability. Moreover, the composite nanofiber membrane exhibited satisfactory blood compatibility. Therefore, this unique flexible Zr-MOF anchored polymer composite nanofiber membrane with an outstanding creatinine removal performance provides a new opportunity for cost reduction for clinical hemodialysis.
研究领域:
生物医学工程
·
材料科学
·
肾脏病学
✓ 已验证
DOI
高影响因子
危险品化学品经营许可证（带存储）