MICROCHIMICA ACTA
·
2020
·Vol. 187
·期 9
·1-9
·
IF 6.232
Wang Meng,Wang Jingjing,Wang Kangkang,Chen Tingxiang,Wang Jide
A novel magnetic porous carbon with a high specific surface and magnetization saturation, derived from a Zn/Co-MOF-5, was fabricated by direct carbonization of Zn/Co-MOF-5 without the need of additional carbon precursors under optimum pyrolysis temperature. The material was employed as an adsorbent for magnetic solid-phase extraction of four carbamates from water and tomato samples prior to high-performance liquid chromatography–tandem quadrupole mass spectrometry analysis. Under optimum conditions, the method displayed good linearity ( r > 0.9987) within the concentration range 0.05–20 ng mL −1 for water samples and 0.1–40 ng g −1 for tomato samples. The limits of detection (S/ N = 3) for the four carbamate pesticides were in the range 0.0006–0.013 ng mL −1 for water samples and 0.001–0.01 ng g −1 for tomato samples and satisfactory spiked recoveries in the range 86.1 to 109.1% were obtained with the relative standard deviation values from 2.1 to 14.0%.
Graphical abstract
研究领域:
分析化学
·
环境科学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
ADVANCED POWDER TECHNOLOGY
·
2017
·
IF 2.659
Dezhi Chen,Caiqin Chen,Weisong Shen,Hongying Quan,Shasha Chen,Shasha Xie,Xubiao Luo,Lin Guo
Magnetic porous carbon-based sorbent (MPCS) with core-shell structure was prepared from the pyrolysis of Fe III -modified MOF-5. The component, structure and surface properties of the as-obtained sorbent were investigated by Raman spectroscopy, X-ray diffraction, thermogravimetric analysis, scanning electron microscopy, transmission electron microscopy and X-ray photoelectron spectroscopy. Sorption behaviors of five organic micropollutants (OMPs), such as atrazine, carbamazepine, bisphenol A, norfloxacin and 4-nitrophenol, onto the magnetic porous MPCS were studied in a batch system. The adsorption capacities of the five OMPs onto MPCS followed the order of 4-nitrophenol > norfloxacin > bisphenol A > carbamazepine > atrazine. All isotherms were fitted well by the Dubinin-Ashtakhov (DA) model, and the approximate site energy distributions were acquired. The possible adsorption mechanisms of the five OMPs onto as-prepared MPCS were discussed in detail. This study will aid in further understanding of interactions between the OMPs and MOF-derived carbon-based materials.
研究领域:
环境科学
·
材料科学
✓ 已验证
DOI
高影响因子
Catalysis Science & Technology
·
2020
·Vol. 10
·期 6
·1699-1707
·
IF 5.721
Yu-Ping Xu,Zhi-Qiao Wang,Hong-Zi Tan,Kai-Qiang Jing,Zhong-Ning Xu,Guo-Cong Guo
CO esterification to dimethyl carbonate (DMC) is an attractive route, although the catalyst is the main problem restricting the industrialization of this route. Supported palladium catalysts have been often used for this route. However, the effect of the support is not always clear. In this work, we firstly introduced three metal–organic frameworks (MOFs) materials as catalyst supports, namely UiO-66, MIL-101 and MOF-5, and studied the effect of Lewis acid sites in the MOFs supports on the catalytic activity and selectivity for CO esterification to DMC. Interestingly, the Pd(II)/UiO-66 catalyst exhibits superior catalytic performance to the other catalysts, with 87.9% CO conversion and 98.5% DMC selectivity due to the abundant Lewis acid sites in UiO-66. It was proven that UiO-66 with more defects would have a large number of Lewis acid sites, and the catalytic performance was positively correlated with the number of Lewis acid sites in MOFs supports, which can be demonstrated by characterization by NH3-TPD, pyridine-IR, XPS and in situ DRIRS. The current work not only revealed the relationship between the Lewis acidity of the support and catalytic performance, but also promotes the development of practical catalysts for CO esterification to DMC.
研究领域:
化学工程
·
催化科学
✓ 已验证
产品关联
DOI
高影响因子
POLYMER ENGINEERING AND SCIENCE
·
2026
·
IF 3.6
Hafiza Aroosa Aslam Khan,Naveed Ramzan,Asif Jamil,Ghulam Rasool,Muneerah Alomar,Muhammad Sarfraz
Decarbonization is essential to address climatic variations caused by greenhouse effects. Membrane-based separation processes present an energy-efficient and scalable pathway for flue gas purification. Permeability-selectivity trade-off of polymeric membranes can be mitigated through combined impregnation of bi-fillers within polymer matrix coupled with applying ultrathin secondary polymer coating to fabricate efficacious dual-layer composite membrane. Microporous activated MOF-5 nanocrystals with high surface area and CO 2 affinity, combined with graphene nanoplatelets possessing exceptional CO 2 uptake, were synergistically embedded into flexible polysulfone matrix. Biodegradable poly(vinyl alcohol) coating layer was uniformly deposited onto doped polysulfone substrate, yielding novel class of anisotropic dual-layer mixed matrix composite membranes, rendering drastically improved CO 2 /N 2 selectivity of 70 and upgraded CO 2 permeability of 92 Barrer as compared to bare polysulfone membrane. Advanced characterizations verified uniform nanofiller dispersion, strong interfacial bonding, and enhanced thermal stability. Five percent PVA coating boosted thermal stability and improved mechanical robustness by 84%, markedly strengthening membrane structural and thermal resilience. An effective strategy is introduced to produce dual-layer membranes with remarkable CO 2 capture performance via optimized bi-filler loading and PVA based surface modification. Highlights Solvothermal synthesis of highly microporous activated MOF-5 nanocrystals. Preparation of Zn-BDC MOF- and graphene nanoplates-embedded composite membranes. Enhanced nanofiller-polymer interfacial compatibility furnishing uniform filler dispersal. Constructing a dual-layer composite membrane by depositing an ultrathin poly(vinyl alcohol) layer. Marked improvement in decarbonization performance of prepared multilayered membranes.
✓ 已验证
产品关联
DOI
高影响因子
MOLECULES
·
2019
·Vol. 24
·期 18
·3369
·
IF 3.06
Gongsen Chen,Juyuan Luo,Mengru Cai,Liuying Qin,Yibo Wang,Lili Gao,Pingqing Huang,Yingchao Yu,Yangming Ding,Xiaoxv Dong,Xingbin Yin,Jian Ni
Oridonin (ORI) is a natural active ingredient with strong anticancer activity. But its clinical use is restricted due to its poor water solubility, short half-life, and low bioavailability. The aim of this study is to utilize the metal organic framework material MOF-5 to load ORI in order to improve its release characteristics and bioavailability. Herein, MOF-5 was synthesized by the solvothermal method and direct addition method, and characterized by Scanning Electron Microscopy (SEM), X-Ray Diffraction (XRD), Fourier Transform Infrared Spectrometer (FTIR), Thermogravimetric Analysis (TG), Brunauer–Emmett–Teller (BET), and Dynamic Light Scattering (DLS), respectively. MOF-5 prepared by the optimal synthesis method was selected for drug-loading and in vitro release experiments. HepG2 cells were model cells. MTT assay, 4′,6-diamidino-2-phenylindole (DAPI) staining and Annexin V/PI assay were used to detect the biological safety of blank carriers and the anticancer activity of drug-loaded materials. The results showed that nano-MOF-5 prepared by the direct addition method had complete structure, uniform size and good biocompatibility, and was suitable as an ORI carrier. The drug loading of[email protected]was 52.86% ± 0.59%. The sustained release effect was reliable, and the cumulative release rate was about 87% in 60 h.[email protected]had significant cytotoxicity (IC50:22.99 μg/mL) and apoptosis effect on HepG2 cells.[email protected]is hopeful to become a new anticancer sustained release preparation. MOF-5 has significant potential as a drug carrier material.Keywords:MOF-5;Oridonin;Antitumor;HepG2 cells;sustained release
研究领域:
药学
·
材料科学
·
癌症研究
✓ 已验证
DOI
PubMed
高影响因子
PETROLEUM CHEMISTRY
·
2025
·
IF 1.1
Jiang Ning,Mao Min,Wang Qingyin,Wang Gongying
MOF-5 is a classic metal-organic framework (MOF) crystal. However, synthesis of high-quality crystals usually requires an expensive N , N ′-diethylformamide (DEF) solvent, and a high molar ratio of a raw material (Zn 2+ : BDC 2– = 3‒5 : 1). More critically, its extreme instability against water vapor has caused researchers to do not use it. In this study, we achieved some important breakthroughs by using inexpensive N , N ′-dimethylformamide (DMF) solvent and meticulously optimizing synthesis parameters combined with a specialized micro-open solvothermal method. With a reduced molar ratio of a raw material (1.47 : 1), we successfully synthesized crystals exhibiting excellent phase structure and morphology, high surface area, out standing water vapor stability, and strong CO 2 adsorption capacity. The results show that the DEF replacement with DMF and reduction of the raw material molar ratio from 3 : 1 to 1.47 : 1 provides an increase of the BET surface area from ~935 to 2388 m 2 /g, and an improvement of the CO 2 adsorption capacity from ~0.8 to 2.5 mmol/g (298 K, 100 kPa). Breakthrough curves reveal that in simulated separation experiments for the flue gas and natural gas containing low CO 2 concentrations (10‒20%), the dynamic separation selectivity for CO 2 /N 2 reaches 22, while that for CO 2 /CH 4 remains stable at 4. Notably, the selectivity remained nearly unaffected by the pressure variation; this phenomenon is promising for enhancing the capture and purification of a low-concentration CO 2 from the flue gas and natural gas. It is important that the improved MOF-5 crystals prepared under optimal synthetic conditions maintained the stable phase structure and morphology even after 14-day exposure to humid air (relative humidity >70%), successfully overcoming the challenge posed by a water vapor.
✓ 已验证
DOI
高影响因子
Molecular Catalysis
·
2023
·
IF 4.6
Xiuqin Dong,Chen Xin,Lingtao Wang,Hao Gong,Yifei Chen
Immobilization of the Rh active sites in novel porous materials has attracted attentions for solving the problems of separation and recycling of homogeneous catalysts. In this work, a comparative study of phosphine modified 1Rh/MOF-5 using three different methods was reported, namely 1Rh-P/MOF-5, 1Rh/MOF-5-P and 1Rh/MOF-5-PPh 3 . Similar with the traditional methods, PPh 3 was etched on Rh particles by impregnation in 1Rh-P/MOF-5 and encapsulated in the pores by solvothermal method in 1Rh/MOF-5-P. Moreover, we proposed a novel post-synthesis strategy for grafting phenyl phosphine on the organic linkers in 1Rh/MOF-5-PPh 3. The position of phenyl phosphine in MOFs and the effect of phosphine on the Rh active sites in hydroformylation were investigated by XRD, IR, XPS, TGA and DRIFTS. 1Rh/MOF-5-PPh 3 exhibited the best catalytic activity and stability than 1Rh-P/MOF-5 and 1Rh/MOF-5-P in the hydroformylation of 1-butene. Different P/Rh ratio in P-modified 1Rh/MOF-5 led to the spatial environment change around the Rh active sites. This study showed details in the role of phosphine ligands played in hydroformylation reactions and provided some guidance for MOFs materials in the immobilization of homogeneous catalysts.
研究领域:
化学
·
材料科学
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF APPLIED POLYMER SCIENCE
·
2023
·Vol. 141
·期 4
·e54855
·
IF 3
Shanshan Ma,Jie Fei,Jifeng Yan,Longqi Liu,Qiyue Huang,Man Zhou,Hejun Li
The limitation in the poor interface would severely affect the further development and application of carbon fiber reinforced composites (CFRP). Unique organic–inorganic hybrid architectures of MOF-5-NH 2 and carboxymethyl cellulose (CMC) were established on the fiber/matrix interphase for promoting mechanical and tribological performances of the composites. The existence of above interfacial reinforced structure was in favor of generating abundant micromechanical interaction sites for enhancing mechanical interlocking. Meanwhile, high-density chemical crosslinking networks played a positive role in elevating interfacial adhesion, further relieving stress concentration and hindering crack propagation. The tensile strength of CFRP-2, CFRP-3, CFRP-4, and CFRP-5 exhibited a significant rising of 27.18%, 30.64%, 27.75%, and 36.88%, respectively. The friction coefficient of MOF-5-NH 2 /CMC modified sample increased from 0.0953 to 0.1219, while the drop in the wear rate of the composites achieved 68.51%. This work provides an effective method for achieving the structure–function integrated design of composite materials according to the organic–inorganic interface enhancement of MOF-5-NH 2 /CMC.
研究领域:
材料科学
·
复合材料工程
✓ 已验证
DOI
高影响因子
JOURNAL OF ALLOYS AND COMPOUNDS
·
2020
·
IF 4.65
Dandan Jia,Ruoyan Tong,Liangmin Ning,Zewen Yang,Yuting Zhang,Wen Gu,Xin Liu
Graphite anode (specific capacity is only 372 mA h g −1 ) for lithium-ion batteries (LIBs) is not enough for high energy and high power density demands. In this work, MOF-5 was used as a precursor to prepare a porous carbon material embedded with BN (Boron Nitride), while B and N elements will enhance the electron transport speed thus improving the conductivity simultaneously. A large specific surface area of 1790.19 m 2 g −1 was provided with this material because of embedding of lamellar BN, therefore it caused excellent cycling stability and high capacity characteristics in LIBs. The capacity retention is 1290 mA h g −1 at 200 mA g −1 and 683 mA h g −1 at 2000 mA g −1 . This material provides a solution for improving the performance of LIBs, and it can also be a reference for the development in other fields.
研究领域:
材料科学
·
能源存储
✓ 已验证
产品关联
DOI
高影响因子
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
·
2023
·
IF 5.2
Jiaojiao Cao,Chengbin Guo,Zhenyu Chen
A series of MOF-5 @BTA-X (X = -CH 3 /-NH 2 /-CO(CH 2 ) 6 CH 3 ) anticorrosion composites was fabricated through loading benzotriazole derivatives in a metal–organic framework (i.e., MOF-5). Their crystal structures and morphologies were characterized by single-crystal X-ray diffraction analysis, Fourier transform infrared spectroscopy , and transmission electron microscopy . The loading–releasing mechanisms between MOF-5 and BTA derivatives were revealed by experiments and theoretical calculations. Their anticorrosion performance for copper was also evaluated by electrochemical impedance spectroscopy and potentiodynamic polarization in 0.5 M NaCl. The corrosion product was analyzed via scanning electron microscopy and X-ray photoelectron spectroscopy. The results indicated that the loading capacities followed the order of MOF-5 @BTA-NH 2 > MOF-5 @BTA-CH 3 > MOF-5 @BTA-CO(CH 2 ) 6 CH 3 . The release rates followed the order of MOF-5 @BTA-NH 2 < MOF-5 @BTA-CH 3 < MOF-5 @BTA-CO(CH 2 ) 6 CH 3 . Furthermore, the results of theoretical calculations indicated that the differences in loading capacities depended on the polarity of the functional group. Meanwhile, the strong binding force decreased the release rate.
研究领域:
材料科学
·
腐蚀防护
·
纳米复合材料
·
理论化学
·
电化学
✓ 已验证
DOI
高影响因子
Sustainable Materials and Technologies
·
2026
·
IF 9.7
Meng Xu,Yu Wang,Lang Wei,Simin He,Ruibin Guo,Nijuan Liu,Zunli Mo
Microbial adhesion and biofilm formation pose persistent threats to marine industry, healthcare, and food safety, often resulting in severe economic losses and structural failure. Although superhydrophobic surfaces offer a physical barrier by trapping air layer, their practical application remains limited by intrinsic mechanical fragility; moreover, once the air layer becomes unstable, the surface lacks an active defense mechanism. Here, we report a multistrategy biomimetic design that enables the engineered fabrication of a highly robust MOF-5/HGM/PPS composite coating, integrating passive physical repulsion with active chemical killing in a synergistic manner. By tuning the hierarchical ratio of micron-sized hollow glass microspheres (HGM) and nanoscale metal–organic framework particles (MOF-5) within a chemically inert polyphenylene sulfide (PPS) matrix, multilevel hierarchical roughness was successfully constructed. The optimized surface exhibited excellent superhydrophobicity, with a static water contact angle of 151.2° and a sliding angle of only 4 ± 1°. Importantly, thermal crosslinking of the PPS network ensured outstanding mechanical and chemical durability. Even after 50 rigorous sandpaper abrasion cycles, prolonged exposure to extreme pH conditions, or 180 h of corrosive salt spray, the coating retained its near-superhydrophobic integrity. Electrochemical measurements showed that the composite reduced the corrosion current density of the metal substrate to 1.406 × 10 −8 A·cm −2 , corresponding to a corrosion inhibition efficiency of 99.994%. In addition, the sustained release of Zn 2+ ions from the MOF-5 framework provided potent biochemical activity, achieving bactericidal efficiencies of over 99% against Escherichia coli and Staphylococcus aureus , while also effectively suppressing colonization by Chlorella vulgaris . This dual-defense strategy, combining a stable air-cushion barrier with localized chemical killing, establishes a new paradigm for the development of intelligent, long-lasting protective materials for harsh marine and clinical environments.
✓ 已验证
产品关联
DOI
高影响因子
Materials Chemistry Frontiers
·
2026
·
IF 8.1
Yandai Lin,Muskan Saif Khan,Fengqi Xuan,Albina Abdossova,Cevat Erisken,Zhe Liu
Exploring and optimizing antitumor therapeutic strategies remains challenging but critical for future clinical translations. To this end, this study reported a type of engineered metal-organic framework-5 (MOF-5)-based nanosheet composite (MOF-5@ICG-HA/MOF-5@RB-HA, MIH/MRH) as well as their ultrasound (US)/laser actuation for reactive oxygen species (ROS) production and subsequent piezo/pyroelectric dynamic therapies. Mesoporous MOF-5 nanosheets were loaded with rose bengal (RB) or indocyanine green (ICG), followed by surface modification with hyaluronic acid (HA). Systematic physiochemical characterizations revealed that their energy band structure in conjunction with the mesoporous architecture promoted ROS generation and diffusion at the presence of US/laser actuation. Cellular uptake demonstrated that the HA-tag endowed these nanocomposites with specific binding capability to CD44 receptors on A549 cell. Upon US or laser actuation, these engineered nanocomposites exhibited remarkable tumor cell apoptosis in vitro due to the superb piezo/pyroelectric dynamic effects, and displayed excellent tumor inhibition rates (up to 92.8%) in vivo. Notably, the US-laser dual-actuated group demonstrated a significantly enhanced therapeutic performance with a tumor inhibition rate of 95.6%, which highlighted a marked advantage of combined actuations. Overall, these MOF-5-based nanocomposites have provided a promising strategy for effective combined A549 tumor therapy, and exhibited favorable prospects for clinical translation using commercial medical sono/photo-devices.
✓ 已验证
产品关联
DOI
高影响因子
危险品化学品经营许可证（带存储）