JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY
·
2025
·
IF 1.6
Zhao Fan,Zhang Wei,Chen Yuantao
The zinc-based metal–organic framework (IRMOF-3) was assembled on the surface of Galdieria sulfuraria (Gs) via a one-pot method to fabricate the composite adsorbent Gs/IRMOF-3. Results show that the material achieves optimal adsorption performance at pH = 6. The adsorption process follows the Freundlich isotherm model and pseudo-second-order kinetic model, demonstrating that it is dominated by multi-molecular layer chemical adsorption and represents a spontaneous endothermic process. This study provides a novel strategy for developing efficient and eco-friendly uranyl adsorption materials.
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高影响因子
JOURNAL OF ALLOYS AND COMPOUNDS
·
2021
·
IF 5.316
Yunhua Song,Yang Yang,Shudi Mo,Donggang Guo,Lu liu
Construction of heterostructure engineered to modulate the electronic structure and enhance conductivity is an effective approach to enhance the performance of materials. The construction of heterostructure electrocatalysts with efficient catalytic activity by combining 2D nanosheet metal organic frameworks (MOFs) with other earth-rich transition metal oxide materials is a compelling study. Herein, a novel (Fe 2 O 3 ) 0.36 @Ni-MOF heterostructure nanosheets has been synthesized by a rapid one-pot hydrothermal procedure as an efficient OER catalyst. (Fe 2 O 3 ) 0.36 @Ni-MOF exhibited prominent OER property with the overpotential of 230 mV at10 mA cm −2 , a small Tafel slope of 66.7 mV dec −1 and ignorable activity decay after 20 h long-term test at 10 mA cm −2 . The excellent properties of (Fe 2 O 3 ) 0.36 @Ni-MOF nanocomposite could be attribute to the vast amounts of active sites exposed by the nanosheets and ultrasmall size nanoparticles, and the electronic interaction between Fe 2 O 3 and Ni-MOF in the heterostructure. This work presents an attractive tactics for the preparation of heterostructure catalysts with good OER catalytic performance.
研究领域:
材料科学
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电化学
·
纳米技术
·
催化
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DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2021
·
IF 13.273
Su Ding,Jinquan Wan,Yan Wang,Zhicheng Yan,Yongwen Ma
In this work, persulfate (PS) activation by a novel functioned metal-organic framework catalyst was investigated for the targeted degradation of DMP, a toxic phthalate pollutant. The catalyst, a molecularly imprinted water-stable Fe-MOF-74 (Fe-MOF-74@SiO 2 @MIP), showed excellent capability of PS activation, high selectivity and efficient targeted degradation performance of DMP. The results of total organic carbon indicated that DMP was mineralized during the catalysis. EPR measurement and quenching experiments suggested the coexistence of SO 4 •− and • OH, and SO 4 •− was predominant in this system. It was found that increasing catalyst loading (0.01 - 0.05 g L -1 ) inhibited the DMP elimination, due to the aggravated radical consumption. A higher pseudo-first order rate of DMP degradation was observed with an increasement of PS (5.2 - 52 mM) and temperature (15 - 45 °C). Besides, coexisting chloride ions (Cl − ) promoted the DMP degradation at the concentration 1 mM, but decreased the degradation performance at other concentrations. According to EPR and XPS analysis, the effect of Cl − was ascribed to the formation chlorine radicals, which changed the radical distribution and the catalytic site property. Chlorinated intermediates were detected by LC-MS, confirming the involvement of Cl-related radicals. Finally, possible degradation pathways were proposed.
研究领域:
环境科学
·
催化化学
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DOI
高影响因子
ACS Applied Energy Materials
·
2022
·
IF 6.959
Zhuo Zhang,Liying Tian,Hongyu Zhang,Hai Xu,Panpan Dong,Yayun Zhang,Donghui Long
Solid-state lithium batteries using solid composite polymer electrolytes (CPEs) with great thermal and mechanical stabilities are believed to be the next-generation advanced electrochemical devices, but they suffer from low ionic conductivity at room temperature and a poor interface between the electrode and the electrolyte. Herein, we present a poly(ethylene oxide) (PEO)-based CPE allowing rapid Li+ migration enabled by coordinating the anions on the exposed metal sites of a metal–organic framework (MOF). The CPE contains MOF-74 fillers, a PEO matrix, and lithium bis(trifluoromethanesulfonyl)imide (LiTFSI). Owing to the strong anchoring effect of MOF-74 fillers on TFSI– verified by calculations and measurements, the CPE exhibits a high ionic conductivity (5.5 × 10–5 S·cm–1 at 30 °C), a wide electrochemical stability (4.8 V), and an improved Li+ transference number (0.36). Besides, the adjusted local current density promotes the interfacial stability against the Li anode in a Li symmetric battery, which performed well at a current density of both 0.2 and 0.4 mA cm–2. With these advantages, the all-solid-sate LiFePO4 battery fabricated exhibited stable cycling performances (161 mA h g–1 and maintained 152 mA h g–1 after 300 cycles at 0.5 C). This strategy gives fresh reference to the utilization of different MOFs and polymers in building high-performance solid-state lithium batteries.
研究领域:
材料科学
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能源存储与转换
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高影响因子
Science Advances
·
2024
·Vol. 10
·期 15
·
IF 11.7
Kerong Chen,Anwei Zhou,Xinyuan Zhou,Jielei He,Yurui Xu,Xinghai Ning
Disruptions in metal balance can trigger a synergistic interplay of cuproptosis and ferroptosis, offering promising solutions to enduring challenges in oncology. Here, we have engineered a Cellular Trojan Horse, named MetaCell, which uses live neutrophils to stably internalize thermosensitive liposomal bimetallic Fe-Cu MOFs (Lip@Fe-Cu-MOFs). MetaCell can instigate cuproptosis and ferroptosis, thereby enhancing treatment efficacy. Mirroring the characteristics of neutrophils, MetaCell can evade the immune system and not only infiltrate tumors but also respond to inflammation by releasing therapeutic components, thereby surmounting traditional treatment barriers. Notably, Lip@Fe-Cu-MOFs demonstrate notable photothermal effects, inciting a targeted release of Fe-Cu-MOFs within cancer cells and amplifying the synergistic action of cuproptosis and ferroptosis. MetaCell has demonstrated promising treatment outcomes in tumor-bearing mice, effectively eliminating solid tumors and forestalling recurrence, leading to extended survival. This research provides great insights into the complex interplay between copper and iron homeostasis in malignancies, potentially paving the way for innovative approaches in cancer treatment.
研究领域:
肿瘤学
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纳米技术
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治疗学
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生物医学工程
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DOI
PubMed
高影响因子
JOURNAL OF ALLOYS AND COMPOUNDS
·
2021
·
IF 5.316
Tao Tang,Chengcai Li,Wenyu He,Wei Hong,Hailin Zhu,Guojin Liu,Yuan Yu,Caihong Lei
In this paper, the ZIF-8/ZnO mixture was sintered at high temperature to prepare C-ZnO composite nano-particles with excellent photocatalytic degradation ability under ultraviolet light , and then blended with PVDF to fabricate PVDF composite membrane with capabilities of photocatalytic degradation of methylene blue(MB) via solution phase conversion. The results show that the photocatalytic performance of the prepared C-ZnO composite particles was the best when the ZIF-8/ZnO mass ratio was 1:2, and the photocatalytic degradation efficiency of the PVDF composite film prepared was as high as 95.02% when the composite particle content was 15%. The photocatalytic activity of C-ZnO composite material benefits from the synergy between the two. Moreover, the efficiency of photodegradation of MB remained above 90% after the composite membrane was subjected to five cycles of experiments, which solved the problem that the traditional photocatalyst was difficult to recycle. In addition, it is found that O 2 - plays a major role in the photocatalytic degradation of MB through free radical capture experiments. All in all, the PVDF composite membrane containing C-ZnO composite particles has a foreseeable potential in the field of photocatalytic printing and dyeing wastewater in the future.
研究领域:
环境科学
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材料科学
·
化学工程
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DOI
高影响因子
ENVIRONMENTAL RESEARCH
·
2025
·
IF 7.7
Kaichun Lin,Jingjun Qin,Zhang Liu,Weicheng Xu,Meng Li,Yuanzhi Zheng,Wei Han,Guangying Zhou,Jianzhang Fang,Zhanqiang Fang,Feng Peng,King Lun Yeung
Pollutant removal through green photocatalysis combined with advanced oxidation processes (AOPs) is critical for efficient wastewater treatment but is limited by poor light harvesting and inefficient oxidant activation. This study addresses these challenges through developing a Co-incorporated UiO-bpydc MOF for enhanced visible-light-driven photocatalysis via peroxymonosulfate (PMS) bridged ligand-to-metal charge transfer (LMCT). The MOF was synthesized through direct cobalt complexation into the UiO-bpydc framework for enabling visible light absorption. The UiO-bpydc(Co) achieved 95.8% degradation of lomefloxacin (LOM) within 30 minutes in the presence of PMS, attributing to narrowed bandgap (i.e., 2.82 eV), improved charge transfer via Co centers, and increased pollutant affinity due to electron-rich ligand. Additionally, the generation of long-lifespan singlet oxygen ( 1 O 2 , 41.8%) was identified as the key reactive species. Theoretical calculations indicated a reduced HOMO-LUMO gap upon the formation of a -Co-OOSO 3 bridge, which promotes carrier separation and improves pollutant-catalyst interactions. The degradation pathways and toxicity evolution of intermediates were clarified, while the exceptional stability, recyclability, and broad pollutant applicability of UiO-bpydc(Co) demonstrate its potential for utilization in oxidative environments This work highlights the potential of transition metal doping to alter the electronic structure of MOFs for target-specific catalytic reactions, offering new opportunities for advanced environmental remediation technologies.
研究领域:
环境科学
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材料科学
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产品关联
DOI
PubMed
高影响因子
JOURNAL OF CHROMATOGRAPHY A
·
2019
·
IF 3.858
Yeqing Jia,Yahui Wang,Meng Yan,Qian Wang,Houjun Xu,Xuesheng Wang,Huanying Zhou,Yulan Hao,Manman Wang
A novel magnetic metal organic framework composite (Fe 3 O 4 @MOF-808) was synthesized by a facile solvothermal method and applied as an adsorbent for the magnetic solid phase extraction (MSPE) of benzoylurea insecticides (BUs) from tea beverages and juice samples. The prepared materials were characterized using scanning electron microscopy (SEM), Fourier-transform infrared spectroscopy (FT-IR), X-ray diffractometry (XRD), vibrating sample magnetometry measurements and N 2 adsorption-desorption experiments. The adsorption (adsorbent amount, extraction time and pH) and elution (elution solvent, elution volume and time) parameters were investigated in detail. Under the optimized experimental conditions, Fe 3 O 4 @MOF-808 exhibited simpler and better reusability than commercial C 18 , with an equivalent adsorption effect. Notably, π-π interactions, hydrophobic interactions and hydrogen bonding interactions contributed to the good adsorption of BUs by Fe 3 O 4 @MOF-808. Finally, a simple and sensitive method was established using Fe 3 O 4 @MOF-808-based MSPE coupled with high-performance liquid chromatography (HPLC). It provided low limits of detection (0.04–0.15 ng/mL), wide linear ranges (0.15–50 ng/mL) and satisfactory recoveries (84.6–98.3%). The proposed method was successfully applied for the fast and sensitive determination of BUs in tea beverages and juice samples.
研究领域:
分析化学
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环境科学
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DOI
PubMed
高影响因子
Journal of Materials Chemistry B
·
2022
·Vol. 10
·期 41
·8535-8548
·
IF 7.571
Jiaxin Wu,Shaokang Jiang,Wenjia Xie,Yiyuan Xue,Mingxin Qiao,Xiangjun Yang,Xin Zhang,Qianbing Wan,Jian Wang,Junyu Chen,Xibo Pei
Biocompatibility and osteointegration of implants are highly desired in orthopedic and dentistry applications. The synthesis of a coating with ideal biocompatibility and osteogenic effect carries practical significance for improving the bio-inertness of pure Ti implants. Metal–organic frameworks (MOFs) are effective surface modification agents in bone regeneration applications. Bio-MOF-1, a classic type of biofriendly MOF with a bio-derived constitution, possesses biocompatibility and osteogenic potential resulting from its Zn core and adenine ligand. In this study, bio-MOF-1 coatings at multiple concentrations were synthesized on alkali-heat treated Ti, and their cytocompatibility and osteogenic properties were systematically examined both in vitro and in vivo. Coatings were characterized to confirm the successful synthesis of bio-MOF-1 coatings. These coatings exhibited advanced thermostability, excellent biocompatibility, and stable Zn2+ release, which up-regulated the expression of osteogenesis-related genes and proteins. Furthermore, bio-MOF-1 coating of Ti implants enhanced early osseointegration at the bone–implant interface. This study demonstrates the promising potential of bio-MOF-1 coatings with the osteogenic effect for surface modification in bone tissue engineering.
研究领域:
生物材料
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组织工程
·
骨科
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牙科学
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DOI
PubMed
高影响因子
Advanced Sustainable Systems
·
2024
·
IF 6.5
Jiawei Zhou,Ming Liu,Shiyang Bai,Jihong Sun,Jia Wei,Ju Wang
The MOF-5@clinoptilolite (MOF@CP) composites are successfully synthesized using polyvinylpyrrolidone (PVP) for adsorption separation of CO 2 /CH 4 , CO 2 /N 2 , and CH 4 /N 2 . The effects of the PVP amounts on the dispersity of MOF-5 on CP random lamellas of the MOF@CPs are evaluated via various characterizations. Meanwhile, their single-component gas adsorption isotherms, breakthrough experiments, and cycling test are measured. The results elucidate that the used PVP amount has a significant influence on the particle size and the uniformity of MOF-5 dispersed on CP random lamellas. The MOF-5-loaded amount in MOF@CP is estimated to be up to 42.52 wt.%. Especially, the surface fractal evolutions indicated the surfaces of MOF@CP became from rough to smooth with the increase of PVP. The CO 2 /CH 4 , CO 2 /N 2 , and CH 4 /N 2 selectivity factors of MOF@CP are higher than that of CP, displaying a better separation performance. Their cycling test revealed that MOF@CPs could be used repetitively, highlighting efficiency for CO 2 and CH 4 separation. Meanwhile, the MOF-5@CP stability under moisture is preliminarily investigated, showing higher moisture resistance stability than MOF-5. Additionally, the grand canonical Monte Carlo simulations demonstrated the adsorption separation mechanism of the prepared MOF@CPs.
研究领域:
材料科学
·
环境科学
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DOI
高影响因子
DALTON TRANSACTIONS
·
2016
·Vol. 46
·期 1
·193-199
·
IF 4.177
Dongdong Xu,Fangfang Zhang,Yanzhou Sun,Zhihua Yang,Binghua Lei,Lili Liu,Shilie Pan
A new rare-earth borate LiRb2LaB2O6 (LB-1) has been synthesized using a high-temperature solution method. Interestingly, it shares its topological structure with the famous porous material MOF-5, which is formed from Zn4O(BDC)3 (BDC = 1,4-benzenedicarboxylate). The nodes [OZn4] and organic linkers [BDC] of MOF-5 are carefully substituted with La3+ rare-earth cations and the inorganic linkers [BO3] and [LiO4], respectively, in order to construct a pure inorganic open framework. LB-1 exhibits good thermal and water stability. Moreover, it possesses a short cut-off edge (<190 nm) and moderate birefringence (exp. 0.040@589.5 nm, cal. 0.038@589.5 nm). Further insights into the cut-off edge were given by first-principles calculations. The factors that influence the birefringence of LB-1 were discussed in view of the spatial arrangement of the [BO3] anionic groups.
研究领域:
无机化学
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材料科学
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晶体工程
·
光学材料
·
固体化学
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DOI
高影响因子
International Journal of Minerals Metallurgy and Materials
·
2022
·Vol. 29
·期 5
·1061-1072
·
IF 3.85
Zhong Jianjian,Qin Lu,Li Jianling,Yang Zhe,Yang Kai,Zhang Mingjie
Two-dimensional Ti 3 C 2 T x exhibits outstanding rate property and cycle performance in lithium-ion capacitors (LICs) due to its unique layered structure, excellent electronic conductivity, and high specific surface area. However, like graphene, Ti 3 C 2 T x restacks during electrochemical cycling due to hydrogen bonding or van der Waals forces, leading to a decrease in the specific surface area and an increase in the diffusion distance of electrolyte ions between the interlayer of the material. Here, a transition metal selenide MoSe 2 with a special three-stacked atomic layered structure, derived from metal—organic framework (MOF), is introduced into the Ti 3 C 2 T x structure through a solvo-thermal method. The synergic effects of rapid Li + diffusion and pillaring effect from the MoSe 2 and excellent conductivity from the Ti 3 C 2 T x sheets endow the material with excellent electrochemical reaction kinetics and capacity. The composite Ti 3 C 2 T x @MoSe 2 material exhibits a high capacity over 300 mAh·g −1 at 150 mA·g −1 and excellent rate property with a specific capacity of 150 mAh·g −1 at 1500 mA·g −1 . Additionally, the material shows a superior capacitive contribution of 86.0% at 2.0 mV·s −1 due to the fast electrochemical reactions. A Ti 3 C 2 T x @MoSe 2 //AC LIC device is also fabricated and exhibits stable cycle performance.
研究领域:
材料科学
·
电化学
·
能源存储
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DOI
高影响因子
危险品化学品经营许可证（带存储）