RESEARCH ON CHEMICAL INTERMEDIATES
·
2023
·Vol. 50
·期 1
·107-125
·
IF 3.3
Huo Quan,Zhang Xiaolin,Fu Yanfei,Zhao Jiayao,Fu Lei,Miao Jiarun,Sun Haihui,Gao Jing,Liu Suyan
In this work, CuCo@C and CuCoS@C derived from an in-situ synthesis bi-metallic MOF HKUST-1/ZIF-67 (CuCo-MOF) were successfully fabricated by calcination and hydrothermal sulfide strategies. Morphology characterization results indicated that ZIF-67 grew uniformly on the surface of HKUST-1 to form CuCo-MOF. And, benefiting from bi-metallic MOFs precursors, the formed derivatives inherited and possessed good textural properties and dispersing well metal sites, which facilitated diffusions of molecules and enhancements of catalytic performances. In addition, carbon matrix produced in the materials further accelerated electron transporting properties, boosting HER and OER activities. Accordingly, in electrolytic water evaluations, CuCo@C and CuCoS@C showed good HER and OER performance, achieving 97 mV and 180 mV of overpotential at 10 mA cm −2 in an alkaline medium, respectively. Additionally, the catalysts exhibit long-term stabilities. Thus, this study provides a rational way for designing and constructing of high-efficient catalysts for H 2 and O 2 generations from electrolytic water processes.
研究领域:
材料科学
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电化学
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纳米催化
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能源化学
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功能材料
✓ 已验证
DOI
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
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材料科学
✓ 已验证
产品关联
DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2025
·
IF 13.2
Yulong Luo,Kerun Li,Wei Liu
The Advanced Oxidation Process (AOPs) has garnered significant attention as an efficient and promising technology for wastewater treatment in the field of environmental remediation. Currently, the exploration of highly effective catalysts for peroxymonosulfate (PMS) activation remains a focal point of scientific research, with increasing emphasis placed on the reuse of waste materials. In line with this objective, this study reports the synthesis of a Fe Co bimetallic metal-organic framework (MOF)-sponge composite (FCS) via an in-situ growth method using discarded natural sponge as a support material. Subsequently, the carbonized derivative (FCSC), obtained through high-temperature carbonization, was employed as a catalyst for PMS activation. The resulting catalyst demonstrated remarkable efficiency in removing 4-nitrophenol (4-NP) from aqueous solutions. Utilizing waste natural sponge as a support not only facilitates resource recovery but also enables the uniform distribution of MOF particles within its inherent three-dimensional porous structure. This feature enhances the contact between the catalyst and pollutants, thereby improving catalytic performance. Moreover, diatomic active sites exhibit significantly higher degradation efficiency toward 4-NP compared to the monometallic configurations. This enhanced performance can be attributed to the more rapid generation of free radicals by diatomic structures during PMS activation, which accelerates electron transfer between metal centers and adjacent oxygen atoms. This work offers novel insights into the development of efficient strategies for the removal of organic contaminants.
研究领域:
环境科学
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材料科学
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化学工程
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纳米技术
✓ 已验证
产品关联
DOI
高影响因子
Small
·
2019
·Vol. 15
·期 35
·1902218
·
IF 10.856
Xiaofang Li,Dong-Dong Ma,Changsheng Cao,Ruqiang Zou,Qiang Xu,Xin-Tao Wu,Qi-Long Zhu
Controllable synthesis of ultrathin metal–organic framework (MOF) nanosheets and rational design of their nano/microstructures in favor of electrochemical catalysis is critical for their renewable energy applications. Herein, an in situ growth method is proposed to prepare the ultrathin NiFe MOF nanosheets with a thickness of 1.5 nm, which are vertically inlaid into a 3D ordered macroporous structure of NiFe hydroxide. The well-designed composite delivers an efficient electrocatalytic performance with a low overpotential of 270 mV at a current density of 10 mA cm −2 and stable electrolysis as long as 10 h toward the electrochemical oxygen evolution reaction, much superior to the state-of-the-art RuO 2 electrocatalyst. A comprehensive analysis demonstrates that the excellent performance originates from the desirable combination of the highly exposed active centers in the ultrathin bimetallic MOF nanosheets, effective electron conduction between MOF nanosheets and ordered macroporous hydroxide, and efficient mass transfer across the hierarchically porous hybridization. This study sheds light on the exploration of powerful protocols to gain diverse high-performance MOF nanosheets and may open a perspective to achieve their efficient electrocatalytic performance.
研究领域:
材料科学
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电化学
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可再生能源
✓ 已验证
产品关联
DOI
PubMed
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
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电化学
·
传感器
·
分析化学
✓ 已验证
DOI
高影响因子
ELECTROCHIMICA ACTA
·
2023
·
IF 6.6
Qingyang Yin,Tong Xu,Fuhuai Cao,Yaya Wang,Chao Yang,Na Liu,Jing Liu,Rongmei Liu
Metal organic framework (MOF) is considered as an excellent electrode material for supercapacitors due to its low cost and homogeneous nanostructure, but the drawbacks of single MOF , such as low specific capacity and stability, limit its development, so the design of bimetallic MOF structural composites is a challenging but favourable strategy for the development of supercapacitors. In this paper, NiFe-MOF/PBAs heterostructure, a bimetallic MOF material with a granular rod-like structure, is successfully prepared by using bimetallic MOF as a precursor and introducing [Co(CN) 6 ] 3− ions to further convert it into PBAs (Prussian blue analogs). Due to the special macroporous structure of PBAs, the composite combines the advantages of the two MOF materials, and the specific capacity is as high as 4270.19 C g −1 at 1 A g −1 . The composite still has excellent electrochemical properties when assembled into devices. The specific capacity is 1996.01 C g −1 at 1 A g −1 , the energy density reached 749.99 W h kg −1 at a power density of 415.85 W kg −1 , and the decay rate is only 1.14 % after 20,000 cycles at 10 A g −1 . These results indicate that the designed dual MOFs composite electrodes have good application prospects in the field of electrochemical energy storage.
研究领域:
材料科学
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电化学
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能源存储
✓ 已验证
产品关联
DOI
高影响因子
Journal of Environmental Chemical Engineering
·
2023
·
IF 7.7
Ning Li,Huanxuan Li,Ran Ji,Sihang Lin,Chen Xu,Jingang Huang,Qingwei Zhou,Shuguang Lyu,Feng Li,Junhong Tang
Due to the fast and high oxidation efficiency for organic pollutants , it is extremely challengeable to develop efficient catalysts for peroxymonosulfate (PMS) to enhance the removal efficiency of pollutants. Herein, we fabricated a bimetallic MOF (CuCo-ABDC) by a facile hydrothermal process, which displayed 2D nanosheets structure and rich active sites. The characterization results showed that CuCo-ABDC-4 with Cu:Co ratio of 1:1 synthesized via temperature gradient ((100 ℃, 24 h) + (150 ℃, 12 h)) had low-crystalline but high catalytic performance towards PMS. With orange G (OG) as the model organic pollutant, CuCo-ABDC-4 displayed the highest catalytic activity for activation of PMS, where 96.4% of OG removal efficiency was achieved within 60 min via a rate constant of 0.052 min −1 . The excellent catalytic activity can be attributed to the high density and uniformly distributed unsaturated Co(II) which was considered to be the main active site, and the interaction between Co and Cu species in the bimetallic MOF. The quenching experiments indicated the production of SO 4 •− , · OH, and 1 O 2 in CuCo-ABDC-4/PMS system and 1 O 2 acted as the predominant reactive species for degradation of OG. Moreover, the presence of NO 2 − , H 2 PO 4 − , SO 4 2− , HCO 3 − and HA exhibited evident inhibition on the OG degradation rate. On the contrary, the existence of CO 3 2− could promote the OG degradation due to the production of carbonate radical. This work introduces a novel and facile fabrication strategy to attain 2D nanosheets structure bimetallic catalysts with high catalytic performance for activation of PMS in wastewater treatment .
研究领域:
环境科学
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催化
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材料科学
·
水处理
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
·
2021
·Vol. 168
·期 8
·082504
·
IF 4.316
Shangkun Deng,Ziliang Li,Kang Xu,Zhu Liu,Zhuangzhuang Yin,Hai Yu,Jianguo Lv,Lei Yang,Zhaoqi Sun,Miao Zhang
In this paper, the electrocatalytic efficiency of bi-metallic organic framework compounds grown on nickel foam (NF) has been enhanced by adjusting the amount of iron and cobalt precursors. A unique wedge-like morphology was observed in Fe-1-Co-1-MOF. The optimized Fe-1-Co-1-MOF (1:1 of molar ratio of iron to cobalt) exhibits superior catalytic activity to oxygen evolution reaction (OER) performance with a lowest overpotential of only 233 mV at a current density of 10 mA·cm−2 and the higher current density of 400 mA·cm−2 can be provided at overpotential of 264 mV. The Tafel slope in alkaline aqueous solutions was 24.4 mV·dec−1. After 10 h of continuous operation, the catalyst showed only a slight loss of current density at 50 mA·cm−2. This success may be attributed to synergy between the bi-metallic organic framework catalyst and the large pores of conductive nickel foam, as well as the synergistic effect between the two phases molecules of the bi-metallic organic framework metal.
研究领域:
材料科学
·
电化学
·
催化
✓ 已验证
产品关联
DOI
高影响因子
ELECTROCHIMICA ACTA
·
2025
·
IF 5.6
Zhikun Zhang,Ying Shi,Zhengjie Li,Jilong Han,Zhiyan Chen,Fangfang Ma,Yanchao Qi,Yumin Liu
MicroRNA-21 (miR-21) has shown great promise as a biomarker for early cancer diagnosis. However, its trace-level abundance in clinical samples complicates point-of-care detection. Herein, we developed a new DNA-modified bimetallic dual-ligand MOF-based electrochemical sensor for highly sensitive and rapid detection of miR-21. The MOF was synthesized using 2,2′-bipyridine-5,5′-dicarboxylic acid (DPDC) and meso‑2,3-dimercaptosuccinic acid (DMSA) as organic linkers, with Ni²⁺/Co²⁺ serving as metal centers. Subsequently, the capture DNA (cDNA) was designed and modified MOF with high porosity and large surface area, significantly enhancing molecular interactions between the cDNA and target miR-21 to boost sensitivity. The developed biosensor exhibits a linear detection range of 10 fM to 100 nM, with a low detection limit of 10 fM and excellent specificity. This method effectively detects miR-21 in blood samples, showcasing strong clinical potential and providing a reliable platform for precision biosensing.
研究领域:
生物传感器
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纳米技术
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生物化学
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分子诊断学
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材料科学
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电化学
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肿瘤学
✓ 已验证
产品关联
DOI
高影响因子
Food Bioscience
·
2025
·
IF 5.9
Hai Chi,Yue Xiao,Xuefei Wen,Houqi Ning,Xingzhong Zhang,Hongrui Chen,Jie Tang
This study developed an electrochemical sensor incorporating a dual recognition strategy that integrates molecularly imprinted polymer (MIP) and aptamers for the ultra-sensitive detection of zearalenone (ZEN) in grains. Exploiting the high specific surface area of the Cu-Zr bimetallic metal-organic framework-818 (MOF-818), aptamers were covalently immobilized on the olefin-functionalized MOF-818 surface via thioenol reaction. Employing 3-thiopheneacetic acid functionalized gold nanoparticles (3-TAA@AuNPs) as functional monomers, nanoscale molecularly imprinted cavities were electro-polymerized onto the modified electrode surface in the presence of the ZEN template. This synergistic recognition system integrates the aptamer's specific binding capability with the spatial complementarity of MIP, displaying an excellent linear response over a concentration range of 10 −13 to 10 −5 g/L and a detection limit as low as 2.8 × 10 −14 g/L. Analysis of real samples exhibited ZEN recoveries ranging from 96.5 % to 105.0 % (RSD <5.2 %) in corn and wheat matrices, confirming its practical applicability for rapid screening of fungal toxins in agricultural commodities.
研究领域:
分析化学
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生物传感器
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食品安全
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纳米技术
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电化学
·
材料科学
✓ 已验证
产品关联
DOI
高影响因子
CHEMICAL ENGINEERING SCIENCE
·
2025
·
IF 4.3
Xiaoqiang Li,Xin Zhang,Xiaorui Zhang,Hao Lu,Jian Wang,Siyuan He,Xiaoxiao Duan,Yongsheng Ren
2-Mercaptobenzothiazole (MBT), a widely utilized metal corrosion inhibitor in industrial production processes, has become a typical persistent organic pollutant (POP) in the circulating water of coal chemical pipelines. In this study, Fe/Mn bimetallic MOF materials supported on carbon fiber paper (PC) were employed for the first time as an electro-Fenton cathode (Fe/Mn@MPC) in a heterogeneous electro-Fenton system, achieving efficient degradation of MBT. Specifically, this novel cathode enabled 96.35 % removal of MBT within 2 h. The uniformly rough fiber morphology presented by the Fe/Mn@MPC cathode results in an increased electrochemically active surface area and reduced resistance. Remarkably, it maintains a very stable catalytic activity over a wide pH range (3–11) and after 10 h of continuous operation, which confirms that the bimetallic synergistic effect enhances the stability of the system. EPR and quenching experiments identified hydroxyl radicals as the primary active species. Based on HPLC-MS results, MBT degradation pathways involving sulfur oxidation intermediate cleavage and benzothiazole ring detachment were proposed. This work presents a promising cathode design for the treatment of thiol-containing wastewater and offers new insights into the efficient remediation of coal chemical wastewater.
研究领域:
环境科学
·
材料科学
·
电化学
·
水处理
·
污染控制
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF MEMBRANE SCIENCE
·
2017
·
IF 6.035
Xuanxuan Cheng,Zhongyi Jiang,Xiaopo Cheng,Song Guo,Lei Tang,Hao Yang,Hong Wu,Fusheng Pan,Peng Zhang,Xingzhong Cao,Baoyi Wang
Although metal-organic frameworks (MOFs) with well-defined regular and porous structure have emerged as a family of nanoporous building blocks, the great potential of MOFs as multi-functional fillers for hybrid membranes deserves in-depth exploitation. In this study, bimetallic MOF nanocages, Fe III -HMOF-5, were prepared and incorporated into sodium alginate (SA) matrix to fabricate water-selective nanohybrid membranes. Introduction of Fe III ions into MOF-5 creates more coordinatively unsaturated sites, which leads to preferential dissolution of water molecules over ethanol molecules, thus elevating the solubility selectivity. The hollow structure of Fe III -HMOF-5 ensures the free diffusion of water molecules. The synergistic regulation of chemical composition and physical structure of MOFs endows the hybrid membranes with remarkably elevated separation factor and permeation flux. Taking dehydration of 90 wt% ethanol aqueous solution as model system, the hybrid membrane containing Fe III -HMOF-5 exhibits the highest separation performance with separation factor of 3423 and permeation flux of 1540 g/m 2 h, much higher than those for pure SA membrane and the hybrid membranes incorporating hollow MOF-5 (HMOF-5) and MOF-5. Moreover, the hybrid membranes containing Fe III -HMOF-5 display remarkably superior physicochemical stabilities and long-term operation stability. This study demonstrates a promising prospect of heterometallic hollow MOFs as multi-functional fillers in high-performance hybrid membranes.
研究领域:
材料科学
·
化学工程
·
纳米技术
✓ 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）